76-18-06 PIPER: Amendment 39-2716. Applies to Model PA-31T, Serial Nos. 31T-7400001 through 31T-7620039 certificated in all categories.
To prevent possible hazards in flight associated with cracks in the elevator and elevator tab support structure, accomplish the following within the next fifty hours in service after the effective date of this AD unless previously accomplished.
(a) Alter the stabilizer/elevator/elevator tab structure in accordance with Piper Elevator Hinge Modification Kit No. 761 056 or approved equivalent alteration.
(b) Equivalent alterations must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.
(Piper Service Bulletin No. 504 refers to this subject.)
This amendment is effective September 10, 1976.