AD 82-25-04

82-25-04 SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (SNIAS): Amendment 39-4505. Applies to Model SA330J series helicopters certificated in all categories. Compliance is required as indicated, unless already accomplished.

To prevent fretting corrosion on the flapping hinge subsequent to loosening of the hinge pin attachment nut, 330A.31.1567.20 or 330A.31.1585.20, accomplish the following:

(a) Within the next 25 flight hours after the effective date of this AD, check the torque of the flapping hinge pin nut in accordance with Aerospatiale SA330 Service Bulletin No. 05.65, paragraph 1C(1)(a) or an equivalent approved by the Manager, FAA, Europe, Africa, and Middle East Office, and thereafter at each P2 inspection (300 hours).

(b) If the torque value is less than 10 mdaN (74 foot-pounds), adjust the torque in accordance with Aerospatiale SA330 Service Bulletin No. 05.65, paragraph 1C(1)(c) and accomplish the inspection in accordance with paragraph 1C(2)(a) at the nextP2 inspection (300 hours) or an equivalent approved by the Manager, FAA, Europe, Africa, and Middle East Office.

This amendment becomes effective December 14, 1982.