AD 82-13-06

82-13-06 SCHWEIZER (GULFSTREAM AMERICAN-GRUMMAN): Amendment 39-4410. Applies to Models G-164B (S/N 1B thru 656B), G-164C (S/N 1C thru 44C), and G164D (S/N 1D thru 16D) airplanes certificated in any category.

COMPLIANCE: Required as indicated unless already accomplished.

To detect elongation of the aileron cable attach holes and to eliminate the possibility of P/N A1450-281 bushings becoming dislodged from the aileron bellcrank, accomplish the following:

a) Within 25 hours time-in-service after the effective date of this AD and every 12 months thereafter, on airplanes not modified in accordance with Gulfstream American Service Bulletin No. 75 (either original issuance or Revision "A" dated January 25, 1980), visually inspect the aileron bellcrank for elongation of the aileron cable attach holes per Part A of the revised service bulletin. If excessive elongation is found, prior to further flight, modify or replace the aileron bellcrank in accordance with Parts B and C of the revised service bulletin.

b) Within 25 hours time-in-service after the effective date of this AD, on airplanes that have been modified in accordance with the original issue of Gulfstream American AG-CAT Service Bulletin No. 75, visually inspect the aileron bellcranks and if the bushings are loose or have less than .230 inch edge distance, replace the aileron bellcrank in accordance with Part D of Revision "A" of the Service Bulletin dated January 25, 1980.

c) The repetitive inspections required by paragraph a) of this AD may be discontinued upon accomplishing the modifications described in Parts B and C of Gulfstream American AG-CAT Service Bulletin No. 75, Revision "A", dated January 25, 1980.

d) Upon request, with substantiating data submitted through an FAA Maintenance Inspector, the compliance times specified in this AD may be adjusted by the Chief, New York Aircraft Certification Office, FAA, JFK International Airport, Jamaica, New York 11430.

e) Aircraft may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished.

f) An equivalent method of compliance with this AD may be used if approved by the Chief, New York Aircraft Certification Office, FAA, JFK International Airport, Jamaica, New York 11430.

This amendment supersedes Amendment 39-3882 (44 FR 11034) AD 80-17-08, effective August 15, 1980. This Amendment becomes effective on July 5, 1982.