80-09-04 PIPER AIRCRAFT CORPORATION: Amendment 39-3749. Applies to Model PA-34-200, serial numbers 34-E4, 34-7250001 through 34-7450220, Model PA-34-200T, serial numbers 34-7570001 through 34-7770441, airplanes certificated in all categories.
Compliance is required as indicated, unless already accomplished.
To prevent elongation or cracking of fitting holes and wearing of attaching nuts and bolts of the vertical fin attachment fittings and stabilator attachment and stabilator hinge assembly, accomplish the following within 25 hours time in service after the effective date of this AD:
a. Inspect, replace parts and modify, as necessary, the vertical fin attachment fittings and stabilator attachment and stabilator hinge assembly in accordance with Piper Aircraft Corporation Service Bulletin No. 579, dated November 14, 1977, or in an equivalent manner approved by the Chief, Engineering and Manufacturing Branch, FAA, Southern Region.
b. Make appropriate maintenancerecord entry.
This amendment becomes effective April 24, 1980.