Airworthiness directives: Pilatus Aircraft Ltd.,

[Federal Register: May 11, 1999 (Volume 64, Number 90)]

[Rules and Regulations]

[Page 25200-25201]

From the Federal Register Online via GPO Access [wais.access.gpo.gov]

[DOCID:fr11my99-5]

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 99-CE-03-AD; Amendment 39-11081; AD 99-06-17]

RIN 2120-AA64

Airworthiness Directives; Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 Airplanes

AGENCY: Federal Aviation Administration, DOT.

ACTION: Direct final rule; confirmation of effective date.

SUMMARY: This action confirms the effective date of Airworthiness Directive (AD) 99-06-17, which applies to certain Pilatus Aircraft Ltd. (Pilatus) Models PC-12 and PC-12/45 airplanes. AD 99-06-17 requires installing a support bracket and a cut-out relay for the second generator control unit. AD 99-06-17 also requires making all the wiring additions and adjustments necessary for the above-referenced installations. This AD was the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Switzerland. The actions specified in this AD are intended to prevent damage to electrical components because incorrectly connected cables or broken or damaged wires cause excessive voltages to the second generator, which could result in loss of electrical power during any phase of flight.

EFFECTIVE DATE: June 16, 1999.

FOR FURTHER INFORMATION CONTACT: Mr. Roman T. Gabrys, Aerospace Engineer, FAA, Small Airplane Directorate, 1201 Walnut, suite 900, Kansas City, Missouri 64106; telephone: (816) 426-6932; facsimile: (816) 426-2169.

[[Page 25201]]

SUPPLEMENTARY INFORMATION: The FAA published this direct final rule with request for comments in the Federal Register on March 23, 1999 (64 FR 13882). The FAA uses the direct final rulemaking procedure for a non-controversial rule where the FAA anticipates that there will be no adverse public comment. This direct final rule advised the public that no adverse comments were anticipated, and that unless a written adverse comment, or a written notice of intent to submit such an adverse comment, was received within the comment period, the regulation would become effective on June 16, 1999. No adverse comments were received, and thus this notice confirms that this final rule will become effective on that date.

Issued in Kansas City, Missouri, on May 4, 1999. Michael Gallagher, Manager, Small Airplane Directorate, Aircraft Certification Service.

[FR Doc. 99-11780Filed5-10-99; 8:45 am]

BILLING CODE 4910-13-P