AD 77-19-06

77-19-06 PIPER: Amendment 39-3041. Applies to Models PA-31, PA-31-300 and PA- 31-325 Serial Numbers 31-2 to 31-7712051 inclusive, and PA-31-350 Serial Numbers 31-5001 to 31-7752092 inclusive, certificated in all categories. To prevent possible hazards in flight associated with a damaged aileron cable, accomplish the following:

(a) Within 50 hours in service from the effective date of this AD, unless previously accomplished, inspect the aileron balance and interconnect cables and the flap solenoid for evidence of damage due to electrical arcing between the flap solenoid and the cables. If damage is found, repairs must be effected prior to further flight except that the aircraft may be flown in accordance with FAR 21.197 to a base where a repair can be made.

(b) Within 100 hours in service from the effective date of this AD, unless previously accomplished, inspect and repair if necessary the aileron balance and interconnect cables and alter the flap solenoid installation in accordance with the "Instructions" section of Piper Service Bulletin No. 567 dated June 7, 1977, or equivalent approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.

(c) If the wing flap motor circuit breaker activates after the effective date of this AD, then within the next 10 hours in service, comply with the inspection and repair requirements of paragraph (a).

(d) Upon compliance with paragraph b., the inspections requirements of this AD may be dispensed with.

(e) 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 is effective September 27, 1977.