Airworthiness directives › 2020-16-02
AD 2020-16-02 Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes
Makes named: pilatus. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Pilatus Aircraft Ltd. (Pilatus) Models PC-6, PC-6/350, PC-6/350-H1, PC-6/350-H2, PC-6/A, PC-6/A-H1, PC-6/A-H2, PC-6/B-H2, PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, PC-6/C-H2, PC-6/C1-H2, PC-6-H1, and PC-6-H2 airplanes, all serial numbers, certificated in any category. Note 1 to paragraph (c) of this AD: These airplanes may also be identified as Fairchild Republic Company airplanes, Fairchild Heli Porter airplanes, or Fairchild-Hiller Corporation airplanes.
Compliance
Unless already done, do the following actions in paragraphs (f)(1) and (2) of this AD: (1) Within the next 100 hours time-in-service after September 9, 2020 (the effective date of this AD) or within the next 12 months after September 9, 2020 (the effective date of this AD), whichever occurs first, inspect the rudder shaft assembly for proper rivet configuration and repair any discrepancies before further flight in accordance with the Accomplishment Instructions—Part 1, paragraph 3.B. and table 1, of Pilatus PC-6 Service Bulletin No: 27-006, Rev. No. 1, dated September 4, 2018. (2) After September 9, 2020 (the effective date of this AD), do not install a rudder shaft assembly on any airplane unless it has been inspected in accordance with paragraph (f)(1) of this AD and found to be free of discrepancies or all discrepancies have been repaired or replaced.
Required actions
The Manager, Small Airplane Standards Branch, 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 Standards Branch, 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.
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 describes the unsafe condition as rudder shaft assemblies with incorrect rivet configuration. The FAA is issuing this AD to prevent rudder shaft assembly failure, which could result in reduced control of the airplane.
Affected ADs
None.
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