Airworthiness Directive

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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.

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77-09-10 PIPER AIRCRAFT CORP: Amendment 39-2892. Applies to models:

PA-23-250 (6 place)S/Nos. 27-3837, 27-3944 to 27-4796 inclusive
PA-24-260S/Nos. 24-4783, 24-4804 to 24-5047 inclusive
PA-30S/Nos. 30-1717, 30-1745 to 30-2000 inclusive
PA-31 and 31-300S/Nos. 31-2 to 31-797 inclusive
PA-31-350S/Nos. 31-5001 to 31-5004 inclusive
PA-31PS/Nos. 31P-1 to 31P-109 inclusive
PA-39S/Nos. 39-1 to 39-155 inclusive

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.