Commonwealth legislation

AD/G1159/13 - Elevator Mass Balance - Inspection

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

1/10 complexity

This Airworthiness Directive requires a safety inspection of the elevator mass balance on specific Gulfstream business jets.

Who is affected:

Owners and operators of Gulfstream (Grumman) G1159 and G-IV series aircraft
Specifically those with serial numbers 1–102 and serial number 775
Only if the aircraft has Service Change No. 131 incorporated (a specific modification)

What must be done: The aircraft's elevator mass balance must be inspected following the procedures in Grumman Customer Bulletin No. 183.

In plain terms, the elevator is the moveable surface on the tail that makes the aircraft pitch up or down. The mass balance refers to weights installed inside this surface to prevent dangerous high-speed vibrations (called flutter) that could tear the tail off or cause loss of control. This directive mandates checking that these weights are properly installed and secure.

Compliance deadline: The inspection must be completed before 1 July 1974.

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Direct links to the current provisions in AD/G1159/13 - Elevator Mass Balance - Inspection.

AD/G1159/13 - Elevator Mass Balance - Inspection

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Gulfstream (Grumman) G1159 and G-IV Series Aeroplanes

AD/G1159/13 Elevator Mass Balance - Inspection 5/74

Applicability: All models with S/Nos. 1 to 102 and 775 with aircraft Service Change No. 131 incorporated.

Document: Grumman Customer Bulletin No. 183. Compliance: Before 1 July 1974.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.