AD/S-76/47 - Engine and Engine Compartment Drain Lines
1AD/S-76/47 - Engine and Engine Compartment Drain Lines
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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-76/47 Engine and Engine Compartment Drain Lines 9/87
Applicability: All model S76A helicopters.
Requirement: Action in accordance with Sikorsky Alert Service Bulletin No. 76-71-9. Compliance: Within 100 hours time in service after 31 August 1987, inspect in accordance with
Section 2 Para A of Requirement document.
Background: Some sections of the combustion chamber and exhaust casing lower drain lines have cracked after extended periods of service.