AD 67-05-01

67-05-01 DOUGLAS: Amdt. 39-345 Part 39 Federal Register February 4, 1967. Applies to Model DC-9 Airplanes Serial Numbers 45695 through 45709, 45711 through 45732, 45735 through 45749, 45770 through 45773, 45775 through 45780, 45785, 45786, 45789 through 45799, 45825, 45826, 45829 through 45832, 45841 through 45844, 47000, 47001, 47043, 47048, 47049, and 47056.

Compliance required as follows:

(a) Within the next 25 hours' time in service after the effective date of this AD unless already accomplished within the last 25 hours' time in service and thereafter, at periods not to exceed 50 hours' time in service from the last inspection, visually inspect for cracks in the door assemblies P/N 5923213-3(LH) and -4 (RH) in the area of the stud assemblies and retainer rings. Also inspect for cracks in brackets P/N 5923213-15(LH) and -16 (RH) and filler P/N 5923213-17 and inspect the stud assemblies P/N 4S14-4 and retainer rings P/N 4S9-2 for looseness or improper installation.(b) Replace or repair in a manner approved by the Chief, Aircraft Engineering Division, FAA Western Region, before further flight (except that the airplane may be flown in accordance with FAR 21.197 to a base where the repair can be performed) all parts subject to the inspection specified in (a) that are cracked and all stud assemblies and retainer rings subject to the inspection specified in (a) that are either improperly installed or not functioning properly.

(c) The inspection specified in (a) may be discontinued when the door assemblies P/N 5923213-3(LH) and -4(RH), brackets P/N 5923213-15(LH) and -16(RH), stud assemblies P/N 4S14-4 and retainer rings P/N 4S9-2 have been reworked in accordance with Douglas Service Sketch 753C or Service Bulletin No. 57-40 or equivalent rework approved by the Chief, Aircraft Engineering Division, FAA Western Region.

(d) Upon request of the operator, an FAA air carrier maintenance inspector, subject to prior approval of the Regional Director, 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 that operator.

(Douglas Service Sketch No. 753C and Service Bulletin No. 57-40 cover this same subject.)

This directive effective February 4, 1967.