AD/BELL 47/97 - Main Rotor Flight Control System Bolts
1AD/BELL 47/97 - Main Rotor Flight Control System Bolts
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Image unavailable in extracted text Bell Helicopter Textron 47 (All Variants) Series Helicopters
AD/BELL 47/97 Main Rotor Flight Control System Bolts 2/90
Applicability: All models.
Requirement: Action in accordance with Bell Alert Service Bulletin No 47-89-16.
Compliance: At the next scheduled inspection for issue of a Maintenance Release after 30 March 1990 or by 30 June 1990, whichever occurs first. Thereafter, reinspect at intervals not exceeding 24 months calendar time.
Background: Bell have advised that some of the rotating control bolts have been found corroded, fretting and/or with excessive wear on the bolt shank.