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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
Amendment 39-2892; AD 77-09-10
Airworthiness Directives; Piper Models PA-23-250, PA-24-260, PA-30, PA-31, PA-31-300, PA-31-350, PA-31P, and PA-39 Aircraft
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AGENCY: Federal Aviation Administration, DOT
DATES: Effective May 12, 1977.
77-09-10 PIPER AIRCRAFT CORP: Amendment 39-2892. Applies to models:
Compliance required within the next 100 hours in service after the effective date of this AD, unless already accomplished.
(a) Modify the electric trim switch in accordance with instruction paragraph of Piper Service Bulletin No. 527, dated November 5, 1976, or equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.
(b) Upon request with substantiating data submitted through an FAA Maintenance Inspector, the compliance time specified in this AD may be adjusted by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.
This amendment becomes effective May 12, 1977.