AD 2013-13-10 Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes

Makes named: pilatus. Models named: PC-7. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to PILATUS Aircraft Ltd. Model PC-7 airplanes, all serial numbers, certificated in any category.

Unless already done, do the following actions as specified in paragraphs (f)(1) and (f)(2) of this AD: (1) Within the next 90 days after August 14, 2013 (the effective date of this AD) and repetitively thereafter at intervals not to exceed 300 hours time-in-service, do the Emergency Fuel Control System-Adjustment/Test following the Functional Test Procedures on pages 501 and 502 of Section 76-20-00, Emergency Fuel Control System, of Chapter 76, Engine Controls, dated November 30, 2010, found in PILATUS PC-7 Turbo Trainer Aircraft Maintenance Manual, Document No. 01715, Revision 27 USA, dated November 30, 2010. Note 1 to paragraph (f)(1) of this AD: Federal Office of Civil Aviation of Switzerland AD No. HB-2013-003, dated April 2, 2013, requires inserting, in its entirety, the revised Chapter/Section 05-10-20, Time Limited Inspection Requirements, of PILATUS PC-7 Turbo Trainer Aircraft Maintenance Manual, Document No. 01715, Revision 31, dated November 30, 2012, into the Limitations section of the aircraft maintenance manual. However, only the section referring to Chapter 76—Engine Controls found on page 4 of the revised Chapter 5 pertains to the requirements of this AD. Other chapters in the revised Chapter 5 are covered in other AD actions. (2) As a result of the functional test required in paragraph (f)(1) of this AD, if a discrepancy is found that is not identified in the document listed in paragraph (f)(1) of this AD, before further flight after finding the discrepancy, contact Pilatus Aircraft Ltd. at the address specified in paragraph (i)(3) of this AD for an FAA-approved repair scheme approved specifically for compliance with this AD and incorporate the repair.

The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Standards Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: Doug Rudolph, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4059; fax: (816) 329-4090; email: doug.rudolph@faa.gov. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (2) Airworthy Product: For any requirement in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent). You are required to assure the product is airworthy before it is returned to service.

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 describes the unsafe condition as a need to incorporate new revisions into the Limitations section of the FAA-approved maintenance program (e.g., maintenance manual). The limitations were revised to include an emergency fuel control system adjustment test. We are issuing this AD to ensure the continued operational safety of the affected airplanes.

None.