65-13-06 LOCKHEED: Amdt. 39-88 Part 39 Federal Register June 23, 1965. Applies to Models 1049C, 1049D, 1049E, 1049G, and 1049H Series aircraft.
Compliance required as indicated.
To detect cracked beam cap tie-in fittings, accomplish the following:
(a) Inspect the beam cap tie-in fittings, Lockheed P/N's 311134L and 311134R, on the upper forward face of the rear spar at Wing Stations 80L and 80R for cracks in the area of the 0.16 inch radius near the center of the fitting, using dye penetrant or an FAA-approved equivalent as specified in (b) or (c) as applicable.
(b) Inspect fittings with 20,000 or more hours' time in service on the effective date of this AD in accordance with (a) within the next 350 hours' time in service unless already accomplished within the last 3,150 hours' time in service, and at intervals thereafter not to exceed 3,500 hours' time in service from the last inspection.
(c) Inspect fittings with less than 20,000 hours' time in service on the effective date of this AD in accordance with (a) within 350 hours' time in service after the effective date of this AD unless already accomplished, and -
(1) If the fittings had 16,850 or more hours' time in service at the time of the inspection, reinspect at intervals not to exceed 3,500 hours' time in service from the last inspection;
(2) If the fittings has less than 16,850 hours' time in service at the time of the inspection, reinspect before the accumulation of 20,350 hours' time in service and at intervals thereafter not to exceed 3,500 hours' time in service from the last inspection.
(d) Replace any fitting found cracked with a new fitting of the same part number before further flight.
(e) Operators who have not kept records of hours' time in service on individual fittings shall substitute airplane hours' time in service in lieu thereof.
(f) Upon request of the operator, an FAA maintenance inspector, subject to prior approval of the Chief, Aircraft Engineering Division, FAA Western Region, may adjust the repetitive inspection intervals specified in this AD to permit compliance at an established inspection period of the operator if the request contains substantiating data to justify the increase for such operator.
This supersedes AD 64-06-05.
This directive effective July 23, 1965.