AD 67-33-04

67-33-04 GRUMMAN: Amdt. 39-533 Part 39 Federal Register December 30, 1967. Applies to G-159 Type Airplanes.

Compliance required within the next 15 hours' time in service after the effective date of this AD, unless already accomplished.

To detect cracks in the aileron control idler, P/N 159CM10212-1, located in the upper portion of each cockpit flight control column, accomplish the following:

(a) Remove cover, P/N 159CM10080-11, from the top of the control column housing and inspect each surface of the idler for deformation or cracks using a borescope, or use an FAA-approved equivalent inspection method. The idler need not be removed to conduct this inspection.

(b) Replace deformed or cracked idlers before further flight with a part of the same part number that has been inspected in accordance with (a), or with an equivalent part approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. Contact the Grumman Aircraft Engineering Corporation forreplacement instructions.

(c) Upon request with substantiating data submitted through an FAA maintenance inspector, the compliance time specified in this AD may be increased by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.

This amendment effective December 30, 1967, for all persons except those to whom it was made effective immediately by telegram dated December 13, 1967.