Airworthiness Directives; British Aerospace (Operations) Limited and British Aerospace Regional Aircraft Airplanes

CourtFederal Aviation Administration
Citation87 FR 16118
Record Number2022-05673
Published date22 March 2022
Federal Register, Volume 87 Issue 55 (Tuesday, March 22, 2022)
[Federal Register Volume 87, Number 55 (Tuesday, March 22, 2022)]
                [Proposed Rules]
                [Pages 16118-16120]
                From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
                [FR Doc No: 2022-05673]
                [[Page 16118]]
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                DEPARTMENT OF TRANSPORTATION
                Federal Aviation Administration
                14 CFR Part 39
                [Docket No. FAA-2022-0285; Project Identifier MCAI-2021-01448-A]
                RIN 2120-AA64
                Airworthiness Directives; British Aerospace (Operations) Limited
                and British Aerospace Regional Aircraft Airplanes
                AGENCY: Federal Aviation Administration (FAA), DOT.
                ACTION: Notice of proposed rulemaking (NPRM).
                -----------------------------------------------------------------------
                SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
                for all British Aerospace (Operations) Limited Model Jetstream Model
                3101 and British Aerospace Regional Aircraft Model Jetstream Model 3201
                airplanes. This proposed AD was prompted by mandatory continuing
                airworthiness information (MCAI) originated by an aviation authority of
                another country to identify and correct an unsafe condition on an
                aviation product. The MCAI identifies the unsafe condition as stress
                corrosion cracking of the primary flight control cable terminals. This
                proposed AD would require repetitively inspecting the turnbuckle type
                control cable terminals in the rudder and elevator primary flight
                control circuits for corrosion, pitting, and cracking and, depending on
                the inspection results, replacing an affected cable assembly. 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 May 6,
                2022.
                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 https://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 service information identified in this NPRM, contact BAE
                Systems (Operations) Ltd., Customer Information Department, Prestwick
                International Airport, Ayrshire, KA9 2RW, Scotland, United Kingdom;
                phone: +44 3300 488727; fax: +44 1292 675704; email:
                [email protected]; website: https://www.baesystems.com/businesses/regionalaircraft/. For information on the availability of
                this material at the FAA, call (817) 222-5110.
                Examining the AD Docket
                 You may examine the AD docket at https://www.regulations.gov by
                searching for and locating Docket No. FAA-2022-0285; 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 MCAI,
                any comments received, and other information. The street address for
                Docket Operations is listed above.
                FOR FURTHER INFORMATION CONTACT: Doug Rudolph, Aviation Safety
                Engineer, General Aviation & Rotorcraft Section, International
                Validation Branch, FAA, 901 Locust, Room 301, Kansas City, MO 64106;
                phone: (816) 329-4059; email: [email protected].
                SUPPLEMENTARY INFORMATION:
                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 ADDRESSES. Include ``Docket No. FAA-2022-0285; Project Identifier
                MCAI-2021-01448-A'' at the beginning of your comments. The most helpful
                comments reference a specific portion of the proposal, explain the
                reason for any recommended change, and include supporting data. The FAA
                will consider all comments received by the closing date and may amend
                this proposal because of those comments.
                 Except for Confidential Business Information (CBI) as described in
                the following paragraph, and other information as described in 14 CFR
                11.35, the FAA will post all comments received, without change, to
                https://www.regulations.gov, including any personal information you
                provide. The agency will also post a report summarizing each
                substantive verbal contact received about this NPRM.
                Confidential Business Information
                 CBI is commercial or financial information that is both customarily
                and actually treated as private by its owner. Under the Freedom of
                Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
                disclosure. If your comments responsive to this NPRM contain commercial
                or financial information that is customarily treated as private, that
                you actually treat as private, and that is relevant or responsive to
                this NPRM, it is important that you clearly designate the submitted
                comments as CBI. Please mark each page of your submission containing
                CBI as ``PROPIN.'' The FAA will treat such marked submissions as
                confidential under the FOIA, and they will not be placed in the public
                docket of this NPRM. Submissions containing CBI should be sent to Doug
                Rudolph, Aviation Safety Engineer, General Aviation & Rotorcraft
                Section, International Validation Branch, FAA, 901 Locust, Room 301,
                Kansas City, MO 64106. Any commentary that the FAA receives which is
                not specifically designated as CBI will be placed in the public docket
                for this rulemaking.
                Background
                 The Civil Aviation Authority (CAA), which is the aviation authority
                for the United Kingdom, has issued CAA AD G-2021-0017, dated December
                21, 2021 (referred to after this as ``the MCAI''), to address an unsafe
                condition on all BAE Systems (Operations) Limited Model Jetstream
                Series 3100 and Series 3200 airplanes. The MCAI states:
                 There were reports of cable terminal failures on a variety of
                civil aircraft types (which did not include the Jetstream 3100 &
                3200 series aircraft). These reports were initially made in the USA,
                Australia & New Zealand.
                 Subsequent investigations identified that the failed terminals
                were made from the same material specification; MS21260, which calls
                up materials SAE303Se or SAE304 stainless steel. It is understood
                that these corrosion resistant steels are susceptible to Stress
                Corrosion Cracking (SCC) in service when subject to contamination.
                 BAE Systems (Operations) Ltd recognises that SAE 303Se and 304
                stainless steels are used in the primary flight control cable
                terminal of the Jetstream 3100 & 3200 series aircraft.
                 The Jetstream 3100 & 3200 series aircraft feature a single path
                for the elevator and rudder primary control cable circuits. For the
                elevator circuit, a potential unsafe condition exists if an elevator
                cable terminal fails at any point in the primary elevator system aft
                of the dual flight controls in the cockpit, because this would
                result in a loss of primary elevator control. This is only
                considered unsafe during take-off after V1, where sufficient runway
                may not be available to brake the aircraft, or during an approach
                where there is insufficient altitude to recover control of the
                aircraft using the aircraft's elevator trim controls.
                 For the rudder circuit, a potential unsafe condition exists if a
                rudder cable terminal fails at any point in the primary rudder
                system aft of the dual flight controls in the cockpit, because this
                would result in a loss of primary rudder control. This is only
                [[Page 16119]]
                considered unsafe when landing in strong crosswinds or after an
                engine failure during take-off and initial climb, where vertical
                axis (yaw) control cannot be maintained using rudder trim or
                asymmetrical power.
                 You may examine the MCAI in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA-2022-
                0285.
                Related Service Information Under 1 CFR Part 51
                 The FAA reviewed British Aerospace Jetstream Series 3100 & 3200
                Service Bulletin 27-JA181040, Original Issue, dated January 17, 2019.
                This service information specifies procedures for repetitively
                inspecting all threaded turnbuckle type control cable end terminals on
                certain part-numbered rudder and elevator primary flight control
                circuits for signs of corrosion, pitting, and cracking on the terminal
                fitting, and specifies replacing an affected cable assembly when the
                inspection results require it. 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
                ADDRESSES.
                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 this State of Design Authority, it
                has notified the FAA of the unsafe condition described in the MCAI and
                service information referenced above. The FAA is issuing this NPRM
                after determining the unsafe condition described previously is likely
                to exist or develop on other products of the same type design.
                Proposed AD Requirements in This NPRM
                 This proposed AD would require accomplishing the actions specified
                in the service information already described.
                Differences Between This Proposed AD and the MCAI
                 The MCAI and service information apply to Model Jetstream Series
                3100 and Jetstream Series 3200 airplanes, which are identified on the
                FAA type certificates as Jetstream Model 3101 and Jetstream Model 3201
                airplanes, respectively.
                 Although the service information specifies reporting inspection
                results to the manufacturer, this proposed AD would not require that
                action.
                Costs of Compliance
                 The FAA estimates that this AD, if adopted as proposed, would
                affect 18 airplanes of U.S. registry.
                 The FAA estimates the following costs to comply with this proposed
                AD:
                 Estimated Costs
                ----------------------------------------------------------------------------------------------------------------
                 Cost on U.S.
                 Action Labor cost Parts cost Cost per airplane operators
                ----------------------------------------------------------------------------------------------------------------
                Inspection..................... 4 work-hours x Not applicable........ $340 per $6,120 per
                 $85 per hour = inspection cycle. inspection
                 $340. cycle.
                ----------------------------------------------------------------------------------------------------------------
                 The FAA estimates the following costs to replace a cable assembly
                based on the results of the proposed inspection. The FAA has no way of
                determining the number of airplanes that might need this action:
                 On-Condition Costs
                ----------------------------------------------------------------------------------------------------------------
                 Cost per
                 Action Labor cost Parts cost airplane
                ----------------------------------------------------------------------------------------------------------------
                Replacement of cable assembly................ 10 work-hours x $85 per hour = $5,000 $5,850
                 $850.
                ----------------------------------------------------------------------------------------------------------------
                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.
                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) Would not affect intrastate aviation in Alaska, and
                 (3) Would 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.
                [[Page 16120]]
                Sec. 39.13 [Amended]
                0
                2. The FAA amends Sec. 39.13 by adding the following new airworthiness
                directive:
                British Aerospace (Operations) Limited and British Aerospace
                Regional Aircraft: Docket No. FAA-2022-0285; Project Identifier
                MCAI-2021-01448-A.
                (a) Comments Due Date
                 The FAA must receive comments on this airworthiness directive
                (AD) by May 6, 2022.
                (b) Affected ADs
                 None.
                (c) Applicability
                 This AD applies to British Aerospace (Operations) Limited Model
                Jetstream Model 3101 and British Aerospace Regional Aircraft Model
                Jetstream Model 3201 airplanes, all serial numbers, certificated in
                any category.
                (d) Subject
                 Joint Aircraft System Component (JASC) Code 2720, Rudder Control
                System, and 2730, Elevator Control System.
                (e) Unsafe Condition
                 This AD was prompted by mandatory continuing airworthiness
                information (MCAI) originated by an aviation authority of another
                country to identify and correct an unsafe condition on an aviation
                product. The MCAI identifies the unsafe condition as stress
                corrosion cracking of the primary flight control cable terminal. The
                FAA is issuing this AD to detect and correct corrosion, pitting, or
                cracking in the primary flight control cable terminals. The unsafe
                condition, if not addressed, could result in failure of the primary
                flight control cable terminal and loss of airplane control.
                (f) Compliance
                 Comply with this AD within the compliance times specified,
                unless already done.
                (g) Required Actions
                 (1) Before any primary rudder or primary elevator flight control
                circuit cable accumulates 16 years since first installation on an
                airplane or within 12 months after the effective date of this AD,
                whichever occurs later, and thereafter at intervals not to exceed 24
                months, inspect all threaded turnbuckle type control cable terminals
                for signs of corrosion, pitting, and cracking by following paragraph
                (2) in Section 2.B. Part 1 and Section 2.B. Part 2 of the
                Accomplishment Instructions in British Aerospace Jetstream Series
                3100 & 3200 Service Bulletin 27-JA181040, Original Issue, dated
                January 17, 2019 (SB 27-JA181040). If the age of any primary rudder
                or primary elevator flight control circuit cable is unknown, do the
                inspection within 12 months after the effective date of this AD and
                thereafter at intervals not to exceed 24 months.
                 (2) If, during any inspection required by paragraph (g)(1) of
                this AD, there is pitting or cracking or corrosion that exceeds
                minimum damage limits, before further flight, replace the affected
                cable assembly with a new (zero hours time-in-service) cable
                assembly.
                 (3) Replacing a cable assembly does not terminate the
                inspections required by this AD. After replacing a cable assembly,
                do the inspection in paragraph (g)(1) of this AD before the cable
                assembly accumulates 15 years since first installation on an
                airplane and thereafter at intervals not to exceed 24 months.
                (h) Alternative Methods of Compliance (AMOCs)
                 (1) The Manager, International Validation 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 the
                attention of the person identified in paragraph (i)(1) of this AD
                and email to: [email protected].
                 (2) Before using any approved AMOC, notify your appropriate
                principal inspector, or lacking a principal inspector, the manager
                of the local flight standards district office/certificate holding
                district office.
                (i) Related Information
                 (1) For more information about this AD, contact Doug Rudolph,
                Aviation Safety Engineer, General Aviation & Rotorcraft Section,
                International Validation Branch, FAA, 901 Locust, Room 301, Kansas
                City, MO 64106; phone: (816) 329-4059; email: [email protected].
                 (2) Refer to Civil Aviation Authority (CAA) AD G-2021-0017,
                dated December 21, 2021, for more information. You may examine the
                CAA AD in the AD docket at https://www.regulations.gov by searching
                for and locating Docket No. FAA-2022-0285.
                 (3) For service information identified in this AD, contact BAE
                Systems (Operations) Ltd., Customer Information Department,
                Prestwick International Airport, Ayrshire, KA9 2RW, Scotland, United
                Kingdom; phone: +44 3300 488727; fax: +44 1292 675704; email:
                [email protected]; website: https://www.baesystems.com/businesses/regionalaircraft/. You may view this service information
                at the FAA, Airworthiness Products Section, Operational Safety
                Branch, 901 Locust, Kansas City, MO 64106. For information on the
                availability of this material at the FAA, call (817) 222-5110.
                 Issued on March 11, 2022.
                Lance T. Gant,
                Director, Compliance & Airworthiness Division, Aircraft Certification
                Service.
                [FR Doc. 2022-05673 Filed 3-21-22; 8:45 am]
                BILLING CODE 4910-13-P
                

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