Airworthiness Directives; Bombardier, Inc., Airplanes

Published date12 July 2019
Citation84 FR 33185
Record Number2019-14045
SectionProposed rules
CourtFederal Aviation Administration
Federal Register, Volume 84 Issue 134 (Friday, July 12, 2019)
[Federal Register Volume 84, Number 134 (Friday, July 12, 2019)]
                [Proposed Rules]
                [Pages 33185-33189]
                From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
                [FR Doc No: 2019-14045]
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                DEPARTMENT OF TRANSPORTATION
                Federal Aviation Administration
                14 CFR Part 39
                [Docket No. FAA-2019-0479; Product Identifier 2019-NM-020-AD]
                RIN 2120-AA64
                Airworthiness Directives; Bombardier, Inc., Airplanes
                AGENCY: Federal Aviation Administration (FAA), DOT.
                ACTION: Notice of proposed rulemaking (NPRM).
                -----------------------------------------------------------------------
                SUMMARY: The FAA proposes to supersede Airworthiness Directive (AD)
                2009-09-02, which applies to certain Bombardier, Inc., Model DHC-8-400
                series airplanes. AD 2009-09-02 requires repetitive inspections for
                damage of certain main landing gear (MLG) forward stabilizer brace
                assemblies, repetitive inspections for cracking of both MLG forward
                stabilizer braces, liquid penetrant inspections for cracking, and
                corrective actions if necessary. Since the FAA issued AD 2009-09-02,
                the FAA has determined that the installation of an elbow restrictor is
                necessary to address the unsafe condition which would extend the
                repetitive inspection interval. This proposed AD would retain the
                existing actions and also require installation of an elbow restrictor.
                The FAA is proposing this AD to address the unsafe condition on these
                products.
                DATES: The FAA must receive comments on this proposed AD by August 26,
                2019.
                ADDRESSES: You may send comments, using the procedures found in 14 CFR
                11.43 and 11.45, by any of the following methods:
                 Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
                 Fax: 202-493-2251.
                 Mail: U.S. Department of Transportation, Docket
                Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
                Jersey Avenue SE, Washington, DC 20590.
                 Hand Delivery: Deliver to Mail address above between 9
                a.m. and 5 p.m., Monday through Friday, except Federal holidays.
                 For Bombardier service information identified in this NPRM, contact
                Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt Boulevard,
                Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000; fax 416-375-
                4539; email [email protected]; internet http://www.bombardier.com. For Goodrich service information identified in this
                NPRM, contact Collins Aerospace, 1400 South Service Road West,
                Oakville, Ontario L6L 5Y7, Canada; telephone: 905-827-7777. You may
                view this referenced service information at the FAA, Transport
                Standards Branch, 2200 South 216th St., Des Moines, WA. For information
                on the availability of this material at the FAA, call 206-231-3195.
                Examining the AD Docket
                 You may examine the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2019-
                0479; or in person at Docket Operations between 9 a.m. and 5 p.m.,
                Monday through Friday, except Federal holidays. The AD docket contains
                this NPRM, the regulatory evaluation, any comments received, and other
                information. The street address for Docket Operations is listed above.
                Comments will be available in the AD docket shortly after receipt.
                FOR FURTHER INFORMATION CONTACT: Andrea Jimenez, Aerospace Engineer,
                Airframe and Mechanical Systems Section, FAA, New York ACO Branch, 1600
                Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7330;
                fax 516-794-5531; email [email protected].
                SUPPLEMENTARY INFORMATION:
                [[Page 33186]]
                Comments Invited
                 The FAA invites you to send any written relevant data, views, or
                arguments about this proposal. Send your comments to an address listed
                under the ADDRESSES section. Include ``Docket No. FAA-2019-0479;
                Product Identifier 2019-NM-020-AD'' at the beginning of your comments.
                The FAA specifically invites comments on the overall regulatory,
                economic, environmental, and energy aspects of this proposed AD. The
                FAA will consider all comments received by the closing date and may
                amend this proposed AD based on those comments.
                 The FAA will post all comments, without change, to http://www.regulations.gov, including any personal information you provide.
                The FAA will also post a report summarizing each substantive verbal
                contact the agency receives about this proposed AD.
                Discussion
                 The FAA issued AD 2009-09-02, Amendment 39-15888 (74 FR 18121,
                April 21, 2009) (``AD 2009-09-02''), for certain Bombardier Model DHC-
                8-400 series airplanes. AD 2009-09-02 requires inspections for damage
                (including excessive wear, corrosion, foreign object damage, and
                cracking) of certain MLG forward stabilizer brace assemblies and
                applicable corrective actions; and repetitive inspections for cracking
                of both MLG forward stabilizer braces, applicable liquid penetrant
                inspections for cracking, and corrective actions if necessary. AD 2009-
                09-02 resulted from reports of failures of the aft hinge of the MLG
                forward stabilizer brace due to fatigue cracks. The FAA issued AD 2009-
                09-02 to address failure of the stabilizer brace, which could result in
                the collapse of the MLG.
                Actions Since AD 2009-09-02 Was Issued
                 Since the FAA issued AD 2009-09-02, the FAA has determined that the
                installation of an elbow restrictor is necessary to address the unsafe
                condition which would extend the repetitive inspection interval.
                 Transport Canada Civil Aviation (TCCA), which is the aviation
                authority for Canada, has issued Canadian AD CF-2009-11R2, dated May
                31, 2018 (referred to after this as the Mandatory Continuing
                Airworthiness Information, or ``the MCAI''), to correct an unsafe
                condition for certain Model DHC-8-400 series airplanes. The MCAI
                states:
                 Several reports have been received on failures of the aft hinge
                of the main landing gear (MLG) forward stabilizer brace. Laboratory
                examinations have found that the fatigue cracks were initiated from
                the dowel pin hole at the aft hinge lug of the MLG forward
                stabilizer brace where the stop bracket is attached. Failure of the
                stabilizer brace could result in the collapse of the main landing
                gear.
                 The initial issue of this [Canadian] AD mandated initial
                inspections, repetitive inspections and rectification, as required,
                of the MLG forward stabilizer brace.
                 Revision 1 of this [Canadian] AD mandated installation of an
                Elbow Restrictor (P/N 46610-1) to the MLG Down-lock Actuators as
                terminating action to the repeat inspections in Part I. The repeat
                inspections in Part IV are required for all Forward Stabilizer Brace
                Assemblies (P/N 46401-7) after Installation of the Elbow Restrictor
                (P/N 46610-1).
                 Revision 2 of this [Canadian] AD, in Part III, gives credit for
                the accomplishment of earlier revisions of Bombardier Service
                Bulletin SB 84-32-69 and clarifies, in Part IV, when the initial and
                repeat inspections are required following the installation of the
                elbow restrictor (P/N 46610-1) in Part III of this [Canadian] AD.
                 Required actions include repetitive inspections for damage of
                certain MLG forward stabilizer brace assemblies, repetitive inspections
                for cracking of both MLG forward stabilizer braces, applicable liquid
                penetrant inspections for cracking, applicable corrective actions
                including repair or replacement if necessary, rework of the MLG forward
                stabilizer brace, and installation of an elbow restrictor. You may
                examine the MCAI in the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2019-
                0479.
                Related Service Information Under 1 CFR Part 51
                 Bombardier has issued Service Bulletin 84-32-69, Revision C, dated
                January 20, 2011. This service information describes procedures for
                installing an elbow restrictor with part number (P/N) 46610-1.
                 Bombardier has issued Service Bulletin 84-32-76, Revision B, dated
                August 1, 2018. This service information describes procedures for
                replacing the standard elbow fitting at the retract port of the lock
                actuator with a new custom elbow fitting.
                 Bombardier has also issued Q400 All Operator Message 338, dated
                February 23, 2009, which the Director of the Federal Register approved
                for incorporation by reference as of May 6, 2009 (74 FR 18121, April
                21, 2009).
                 Bombardier has issued Repair Drawing 8/4-32-099, Issue 4, dated
                September 4, 2018. This service information describes procedures for a
                nondestructive inspection for damage (including excessive wear,
                corrosion, foreign object damage, and cracking) of the MLG forward
                stabilizer brace assembly, P/N 46401-7.
                 Goodrich has issued Service Concession Request 026-09, Revision H,
                dated August 29, 2018. This service information describes procedures
                for a nondestructive inspection for damage of the MLG forward
                stabilizer brace assembly, P/N 46401-7, and applicable corrective
                actions.
                 This service information is reasonably available because the
                interested parties have access to it through their normal course of
                business or by the means identified in the ADDRESSES section.
                FAA's Determination
                 This product has been approved by the aviation authority of another
                country, and is approved for operation in the United States. Pursuant
                to the FAA's bilateral agreement with the State of Design Authority,
                the FAA has been notified of the unsafe condition described in the MCAI
                and service information referenced above. The FAA is proposing this AD
                because the FAA evaluated all the relevant information and determined
                the unsafe condition described previously is likely to exist or develop
                on other products of the same type design.
                Proposed Requirements of This NPRM
                 This proposed AD would retain all requirements of AD 2009-09-02.
                This proposed AD would also require accomplishing the actions specified
                in the service information described previously.
                Costs of Compliance
                 The FAA estimates that this proposed AD affects 54 airplanes of
                U.S. registry.
                 The FAA estimates the following costs to comply with this proposed
                AD:
                [[Page 33187]]
                 Estimated Costs for Required Actions
                ----------------------------------------------------------------------------------------------------------------
                 Cost per Cost on U.S.
                 Action Labor cost Parts cost product operators
                ----------------------------------------------------------------------------------------------------------------
                Retained actions from AD 2009-09-02... 8 work-hours x $85 per $0 $680 $36,720
                 hour = $680.
                New proposed actions.................. 19 work-hours x $85 per 10,867 12,482 674,028
                 hour = $1,615.
                ----------------------------------------------------------------------------------------------------------------
                 The FAA has received no definitive data that would enable the
                agency to provide cost estimates for the on-condition actions specified
                in this proposed AD.
                 According to the manufacturer, some or all of the costs of this
                proposed AD may be covered under warranty, thereby reducing the cost
                impact on affected individuals. The FAA does not control warranty
                coverage for affected individuals. As a result, the FAA has included
                all known costs in the cost estimate.
                Authority for This Rulemaking
                 Title 49 of the United States Code specifies the FAA's authority to
                issue rules on aviation safety. Subtitle I, section 106, describes the
                authority of the FAA Administrator. Subtitle VII: Aviation Programs,
                describes in more detail the scope of the Agency's authority.
                 The FAA is issuing this rulemaking under the authority described in
                Subtitle VII, Part A, Subpart III, Section 44701: ``General
                requirements.'' Under that section, Congress charges the FAA with
                promoting safe flight of civil aircraft in air commerce by prescribing
                regulations for practices, methods, and procedures the Administrator
                finds necessary for safety in air commerce. This regulation is within
                the scope of that authority because it addresses an unsafe condition
                that is likely to exist or develop on products identified in this
                rulemaking action.
                 This proposed AD is issued in accordance with authority delegated
                by the Executive Director, Aircraft Certification Service, as
                authorized by FAA Order 8000.51C. In accordance with that order,
                issuance of ADs is normally a function of the Compliance and
                Airworthiness Division, but during this transition period, the
                Executive Director has delegated the authority to issue ADs applicable
                to transport category airplanes and associated appliances to the
                Director of the System Oversight Division.
                Regulatory Findings
                 The FAA determined that this proposed AD would not have federalism
                implications under Executive Order 13132. This proposed AD would not
                have a substantial direct effect on the States, on the relationship
                between the national Government and the States, or on the distribution
                of power and responsibilities among the various levels of government.
                 For the reasons discussed above, I certify this proposed
                regulation:
                 (1) Is not a ``significant regulatory action'' under Executive
                Order 12866,
                 (2) Will not affect intrastate aviation in Alaska, and
                 (3) Will not have a significant economic impact, positive or
                negative, on a substantial number of small entities under the criteria
                of the Regulatory Flexibility Act.
                List of Subjects in 14 CFR Part 39
                 Air transportation, Aircraft, Aviation safety, Incorporation by
                reference, Safety.
                The Proposed Amendment
                 Accordingly, under the authority delegated to me by the
                Administrator, the FAA proposes to amend 14 CFR part 39 as follows:
                PART 39--AIRWORTHINESS DIRECTIVES
                0
                1. The authority citation for part 39 continues to read as follows:
                 Authority: 49 U.S.C. 106(g), 40113, 44701.
                Sec. 39.13 [Amended]
                0
                2. The FAA amends Sec. 39.13 by removing Airworthiness Directive (AD)
                2009-09-02, Amendment 39-15888 (74 FR 18121, April 21, 2009), and
                adding the following new AD:
                Bombardier, Inc.: Docket No. FAA-2019-0479; Product Identifier 2019-
                NM-020-AD.
                (a) Comments Due Date
                 The FAA must receive comments by August 26, 2019.
                (b) Affected ADs
                 This AD replaces AD 2009-09-02, Amendment 39-15888 (74 FR 18121,
                April 21, 2009) (``AD 2009-09-02'').
                (c) Applicability
                 This AD applies to Bombardier, Inc., Model DHC-8-400, -401, and
                -402 airplanes, certificated in any category, serial numbers 4001,
                4003, and subsequent, equipped with main landing gear (MLG) forward
                stabilizer brace part number (P/N) 46401-7.
                (d) Subject
                 Air Transport Association (ATA) of America Code 32, Main landing
                gear.
                (e) Reason
                 This AD was prompted by reports of failures of the aft hinge of
                the MLG forward stabilizer brace due to fatigue cracks. The FAA is
                issuing this AD to address failure of the stabilizer brace, which
                could result in the collapse of the MLG.
                (f) Compliance
                 Comply with this AD within the compliance times specified,
                unless already done.
                (g) Retained Inspection and Corrective Actions, With Revised Service
                Information and Removed Reporting Requirement
                 This paragraph restates the requirements of paragraph (f) of AD
                2009-09-02, with new service information and removed reporting
                requirement. Unless already done, do the following actions:
                 (1) At the applicable time specified in paragraph (g)(1)(i),
                (g)(1)(ii), (g)(1)(iii), or (g)(1)(iv) of this AD: Perform non-
                destructive inspections for damage of the MLG forward stabilizer
                brace assemblies P/N 46401-7, in accordance with Bombardier Repair
                Drawing 8/4-32-099, Issue 1, dated March 10, 2009, and Goodrich
                Service Concession Request 026-09, Revision B, dated March 10, 2009;
                or Bombardier Repair Drawing 8/4-32-099, Issue 4, dated September 4,
                2018, and Goodrich Service Concession Request 026-09, Revision H,
                dated August 29, 2018. Repeat the inspection thereafter at intervals
                not to exceed 2,000 flight cycles. As of the effective date of this
                AD, use Bombardier Repair Drawing 8/4-32-099, Issue 4, dated
                September 4, 2018, and Goodrich Service Concession Request 026-09,
                Revision H, dated August 29, 2018, for the actions required by this
                paragraph.
                 (i) For airplanes with MLG forward stabilizer braces that have
                accumulated 12,000 or more total flight cycles as of May 6, 2009
                (the effective date of AD 2009-09-02): Inspect within 50 flight
                cycles after May 6, 2009.
                 (ii) For airplanes with MLG forward stabilizer braces that have
                accumulated 9,000 or more total flight cycles but fewer than 12,000
                total flight cycles as of May 6, 2009 (the effective date of AD
                2009-09-02): Inspect before the accumulation of 12,050 total flight
                cycles, or within 500 flight cycles after May 6, 2009, whichever
                occurs earlier.
                 (iii) For airplanes with MLG forward stabilizer braces that have
                accumulated 4,500 or more total flight cycles but fewer than 9,000
                total flight cycles as of May 6, 2009 (the effective date of AD
                2009-09-02): Inspect before the accumulation of 9,500 total flight
                [[Page 33188]]
                cycles, or within 1,500 flight cycles after May 6, 2009, whichever
                occurs earlier.
                 (iv) For airplanes with MLG forward stabilizer braces that have
                accumulated fewer than 4,500 total flight cycles as of May 6, 2009
                (the effective date of AD 2009-09-02): Inspect before the
                accumulation of 6,000 total flight cycles.
                 (2) If any damage is found during any inspection required by
                paragraph (g)(1) of this AD, before further flight, do all
                applicable corrective actions in accordance with Goodrich Service
                Concession Request 026-09, Revision B, dated March 10, 2009; or
                Goodrich Service Concession Request 026-09, Revision H, dated August
                29, 2018; except as provided by paragraphs (g)(3), (g)(4), (g)(5),
                and (g)(6) of this AD. As of the effective date of this AD, use
                Goodrich Service Concession Request 026-09, Revision H, dated August
                29, 2018, for the actions required by this paragraph.
                 (3) For airplanes on which step 24. of Goodrich Service
                Concession Request 026-09, Revision B, dated March 10, 2009, has
                been done: Within 1,200 flight cycles after May 6, 2009 (the
                effective date of AD 2009-09-02), rework the MLG forward stabilizer
                brace, and except for airplanes on which the rework has been done,
                within 600 flight cycles after May 6, 2009, do a detailed visual
                inspection for damage of the stabilizer brace apex lugs, in
                accordance with Goodrich Service Concession Request 026-09, Revision
                B, dated March 10, 2009; or Goodrich Service Concession Request 026-
                09, Revision H, dated August 29, 2018. If any damage is found,
                repair before further flight in accordance with Section C of
                Goodrich Service Concession Request 026-09, Revision B, dated March
                10, 2009; or Section C of Goodrich Service Concession Request 026-
                09, Revision H, dated August 29, 2018. As of the effective date of
                this AD, use Goodrich Service Concession Request 026-09, Revision H,
                dated August 29, 2018, for the actions required by this paragraph.
                 (4) At the applicable time specified in paragraph (g)(4)(i),
                (g)(4)(ii), or (g)(4)(iii) of this AD, replace the forward
                stabilizer brace assembly, in accordance with Goodrich Service
                Concession Request 026-09, Revision B, dated March 10, 2009; or
                Goodrich Service Concession Request 026-09, Revision H, dated August
                29, 2018. As of the effective date of this AD, use Goodrich Service
                Concession Request 026-09, Revision H, dated August 29, 2018, for
                the actions required by this paragraph.
                 (i) For airplanes on which cracking is found during any
                inspection required by this AD, and the cracking exceeds the limit
                specified in paragraph (g)(4)(i)(A) or (g)(4)(i)(B) of this AD, as
                applicable: Replace the assembly before further flight.
                 (A) For cracking found before the effective date of this AD: The
                limit specified in Section C of Goodrich Service Concession Request
                026-09, Revision B, dated March 10, 2009.
                 (B) For cracking found on or after the effective date of this
                AD: The limit specified in Section C or Section D of Goodrich
                Service Concession Request 026-09, Revision H, dated August 29,
                2018.
                 (ii) For airplanes on which any cracking is found after the
                rework specified in Section C of Goodrich Service Concession Request
                026-09, Revision B, dated March 10, 2009; or specified in Section C
                or Section D of Goodrich Service Concession Request 026-09, Revision
                H, dated August 29, 2018: Replace the assembly before further
                flight.
                 (iii) For airplanes on which no cracking is found after the
                rework specified in Section C of Goodrich Service Concession Request
                026-09, Revision B, dated March 10, 2009; or specified in Section C
                or Section D of Goodrich Service Concession Request 026-09, Revision
                H, dated August 29, 2018: Replace the assembly within 2,700 flight
                cycles after doing the rework.
                 (5) If foreign object damage is found during any inspection
                required by this AD, or if damage is found to a forward stabilizer
                brace lug or stop bracket retention hole apex bushing, before
                further flight, repair using a method approved by the Manager, New
                York ACO Branch, FAA; or Transport Canada Civil Aviation (TCCA); or
                Bombardier, Inc.'s TCCA Design Approval Organization (DAO). If
                approved by the DAO, the approval must include the DAO-authorized
                signature.
                 (6) If any crack is found during the visual inspection under 10X
                magnification, repair before further flight, in accordance with
                Goodrich Service Concession Request 026-09, Revision B, dated March
                10, 2009; or Goodrich Service Concession Request 026-09, Revision H,
                dated August 29, 2018. As of the effective date of this AD, use
                Goodrich Service Concession Request 026-09, Revision H, dated August
                29, 2018, for the actions required by this paragraph.
                 (7) Before the accumulation of 6,000 total flight cycles on the
                MLG forward stabilizer braces, or within 600 flight hours after May
                6, 2009 (the effective date of AD 2009-09-02), whichever occurs
                later: Do a detailed visual inspection for cracking of both MLG
                forward stabilizer braces and do all applicable liquid penetrant
                inspections for cracking, in accordance with Bombardier Q400 All
                Operator Message 338, dated February 23, 2009. Repeat the inspection
                thereafter at intervals not to exceed 600 flight hours. If any
                cracking is found during any inspection required by this paragraph,
                repair before further flight in accordance with Bombardier Repair
                Drawing 8/4-32-099, Issue 1, dated March 10, 2009, and Goodrich
                Service Concession Request 026-09, Revision B, dated March 10, 2009;
                or Bombardier Repair Drawing 8/4-32-099, Issue 4, dated September 4,
                2018, and Goodrich Service Concession Request 026-09, Revision H,
                dated August 29, 2018. As of the effective date of this AD, use
                Bombardier Repair Drawing 8/4-32-099, Issue 4, dated September 4,
                2018, and Goodrich Service Concession Request 026-09, Revision H,
                dated August 29, 2018, to repair cracking found during any
                inspection required by this paragraph.
                (h) New Requirement of This AD: Installation of Elbow Restrictor
                 Within 2,000 flight hours or 12 months, whichever occurs first,
                from the effective date of this AD: Install an elbow restrictor, P/N
                46610-1, in accordance with the Accomplishment Instructions of
                Bombardier Service Bulletin 84-32-69, Revision C, dated January 20,
                2011.
                (i) Terminating Actions
                 (1) Installation of an elbow restrictor as required by paragraph
                (h) of this AD terminates the repetitive inspection requirements of
                paragraphs (g)(1) and (g)(7) of this AD.
                 (2) Installation of an elbow restrictor as required by paragraph
                (h) of this AD terminates the replacement of the forward stabilizer
                brace assembly requirement of paragraph (g)(4)(iii) of this AD.
                (j) New Requirement of This AD: Revised Repetitive Inspections of the
                MLG Forward Stabilizer Brace
                 (1) Within 2,000 flight cycles after the installation specified
                in paragraph (h) of this AD, or within 12 months after the effective
                date, whichever occurs later, do the non-destructive inspection, in
                accordance with Bombardier Repair Drawing 8/4-32-099, Issue 4, dated
                September 4, 2018, and Goodrich Service Concession Request 026-09,
                Revision H, dated August 29, 2018. Thereafter, repeat the non-
                destructive inspection at the times specified in paragraph (j)(2) of
                this AD.
                 (2) Repeat the non-destructive inspection required in paragraph
                (j)(1) of this AD at the applicable intervals specified in
                paragraphs (j)(2)(i), (j)(2)(ii), and (j)(2)(iii) of this AD.
                 (i) For forward stabilizer braces, P/N 46401-7, that have not
                had any required rework done, as specified in Goodrich Service
                Concession Request 026-09, Section C or D, and have had Bombardier
                Service Bulletin 84-32-69 or Bombardier Service Bulletin 84-32-76
                incorporated: Do the non-destructive inspection at intervals not to
                exceed 6,000 flight cycles.
                 (ii) For forward stabilizer braces, P/N 46401-7, that have been
                reworked in accordance with Goodrich Service Concession Request 026-
                09, Section D, and have had Bombardier Service Bulletin 84-32-69 or
                Bombardier Service Bulletin 84-32-76 incorporated: Do the non-
                destructive inspection at intervals not to exceed 6,000 flight
                cycles.
                 (iii) For forward stabilizer braces, P/N 46401-7, that have been
                reworked in accordance with Goodrich Service Concession Request 026-
                09, Section C, and have had Bombardier Service Bulletin 84-32-69 or
                Bombardier Service Bulletin 84-32-76 incorporated: Do the non-
                destructive inspection at intervals not to exceed 3,000 flight
                cycles.
                (k) Acceptable Method of Compliance for Paragraph (h) of This AD
                 Replacing the standard elbow fitting at the retract port of the
                lock actuator with a new custom elbow fitting in accordance with the
                Accomplishment Instructions of Bombardier Service Bulletin 84-32-76,
                Revision B, dated August 1, 2018, is an acceptable method of
                compliance for the installation required by paragraph (h) of this
                AD.
                (l) Credit for Previous Actions
                 (1) This paragraph provides credit for actions required by
                paragraph (h) of this AD, if those actions were performed before the
                effective date of this AD using the service information in paragraph
                (l)(1)(i), (l)(1)(ii), or (l)(1)(iii) of this AD.
                [[Page 33189]]
                 (i) Bombardier Service Bulletin 84-32-69, dated June 30, 2009.
                 (ii) Bombardier Service Bulletin 84-32-69, Revision A, dated
                August 19, 2009.
                 (iii) Bombardier Service Bulletin 84-32-69, Revision B, dated
                September 17, 2009.
                 (2) This paragraph provides credit for actions specified in
                paragraph (j) of this AD, if those actions were performed before the
                effective date of this AD using the service information in paragraph
                (l)(2)(i), (l)(2)(ii), or (l)(2)(iii) of this AD.
                 (i) Bombardier Repair Drawing 8/4-32-099, Issue 1, dated March
                10, 2009, and Goodrich Service Concession Request 026-09, Revision
                B, dated March 10, 2009.
                 (ii) Bombardier Repair Drawing 8/4-32-099, Issue 2, dated April
                20, 2009, and Goodrich Service Concession Request 026-09, Revision
                C, dated April 17, 2009.
                 (iii) Bombardier Repair Drawing 8/4-32-099, Issue 3, dated
                December 3, 2009, and Goodrich Service Concession Request 026-09,
                Revision D, dated November 27, 2009.
                 (3) This paragraph provides credit for actions performed using
                the method of compliance specified in paragraph (k) of this AD, if
                those actions were performed before the effective date of this AD
                using the service information in paragraph (l)(3)(i) or (l)(3)(ii)
                of this AD.
                 (i) Bombardier Service Bulletin 84-32-76, dated May 20, 2010.
                 (ii) Bombardier Service Bulletin 84-32-76, Revision A, dated
                June 19, 2014.
                (m) Other FAA AD Provisions
                 (1) Alternative Methods of Compliance (AMOCs): The Manager, New
                York ACO Branch, FAA, has the authority to approve AMOCs for this
                AD, if requested using the procedures found in 14 CFR 39.19. In
                accordance with 14 CFR 39.19, send your request to your principal
                inspector or local Flight Standards District Office, as appropriate.
                If sending information directly to the manager of the certification
                office, send it to ATTN: Program Manager, Continuing Operational
                Safety, FAA, New York ACO Branch. AMOCs approved previously in
                accordance with AD 2009-09-02 are approved as AMOCs for the
                corresponding requirements in paragraph (g) of this AD.
                 (2) Contacting the Manufacturer: For any requirement in this AD
                to obtain corrective actions from a manufacturer, the action must be
                accomplished using a method approved by the Manager, New York ACO
                Branch, FAA; or TCCA; or Bombardier, Inc.'s TCCA DAO. If approved by
                the DAO, the approval must include the DAO-authorized signature.
                (n) Related Information
                 (1) Refer to Mandatory Continuing Airworthiness Information
                (MCAI) Canadian AD CF-2009-11R2, dated May 31, 2018, for related
                information. This MCAI may be found in the AD docket on the internet
                at http://www.regulations.gov by searching for and locating Docket
                No. FAA-2019-0479.
                 (2) For more information about this AD, contact Andrea Jimenez,
                Aerospace Engineer, Airframe and Mechanical Systems Section, FAA,
                New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY
                11590; telephone 516-228-7330; fax 516-794-5531; email [email protected].
                 (3) For service information identified in this AD, contact
                Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt
                Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000;
                fax 416-375-4539; email [email protected]; internet
                http://www.bombardier.com. For Goodrich service information
                identified in this NPRM, contact Collins Aerospace, 1400 South
                Service Road West, Oakville, Ontario L6L 5Y7, Canada; telephone:
                905-827-7777. You may view this service information at the FAA,
                Transport Standards Branch, 2200 South 216th St., Des Moines, WA.
                For information on the availability of this material at the FAA,
                call 206-231-3195.
                 Issued in Des Moines, Washington, on June 26, 2019.
                Dionne Palermo,
                Acting Director, System Oversight Division, Aircraft Certification
                Service.
                [FR Doc. 2019-14045 Filed 7-11-19; 8:45 am]
                BILLING CODE 4910-13-P
                

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