AD/S-76/27 - Main Rotor Blade Spar Tip End - Inspection
1AD/S-76/27 - Main Rotor Blade Spar Tip End - Inspection
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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 Sikorsky S-76 Series Helicopters
AD/S-76/27 Main Rotor Blade Spar Tip End - Inspection 5/83
Applicability: All models with main rotor blade assemblies P/N 76150-09000 and P/N 76150- 09100-041 thru -050, unless the blade assemblies are marked as RS-004E-II or RS- 004F-II.
Document: Sikorsky Alert Service Bulletin No. 76-65-34.
Compliance: Within 100 hours time in service after 31 May 1983 and thereafter at each scheduled tip cap removal.
Background: Cracks were detected at the spar tip end in one blade undergoing repair at Sikorsky Aircraft.