85-08-04: Wing Spars

85-08-04 PARTENAVIA COSTRUZIONI AERONAUTICHE S.p.A.: Amendment 39- 5037. Applies to all Models P 68, P 68B, P 68C, P 68C-TC and P 68 OBSERVER (Serial Numbers 001 thru 328) airplanes certificated in any category. Compliance: Required as indicated after the effective date of this AD, unless already accomplished. To preclude the failure of the wing spar, within 100 hours time-in-service after the effective date of this AD or upon accumulating 2,100 hours time-in-service, whichever occurs later, and thereafter at intervals not exceeding 500 hours time-in-service since the last inspection, accomplish the following: (a) Visually inspect the front and rear wing spars for cracks as described in Part A of PARTENAVIA S/B No. 65, Revision 1, dated September 27, 1984. (b) If cracks are found as a result of any inspection required by Paragraph (a) of this AD, prior to further flight, accomplish the modification described in Part B of PARTENAVIA S/B No. 65, Revision 1, dated September 27, 1984. (c) The repetitive inspections required by Paragraph (a) of this AD may be discontinued when the modification in Paragraph (b) of this AD is accomplished. (d) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished. (e) An equivalent method of compliance with this AD, if used, must be approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa and Middle East Office, FAA, c/o American Embassy, 1000 Brussels, Belgium. This amendment becomes effective on May 17, 1985.