Commonwealth legislation

AD/BELL 412/20 - Bolts P/N AN4-5A - Pylon Support - CANCELLED

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This Act has been repealed and is no longer in force. It is retained for historical reference.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 document officially cancels a previous aircraft safety rule affecting Bell 412 helicopters.

What it does:

Revokes Airworthiness Directive (AD) requirements regarding specific bolts (part number AN4-5A) on the pylon support structure
Removes the need for a once-only inspection that was previously required under Alert SB 412-88-38

Who it affects:

Owners and operators of Bell Helicopter Textron 412 series helicopters
Maintenance organisations servicing these aircraft

Why it matters: As of 19 November 2009, operators no longer need to perform this specific bolt inspection, reducing maintenance requirements for these aircraft. The Civil Aviation Safety Authority (CASA) has determined the inspection is no longer necessary for airworthiness.

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Current sections

Direct links to the current provisions in AD/BELL 412/20 - Bolts P/N AN4-5A - Pylon Support - CANCELLED.

Bell Helicopter Textron 412 Series Helic

Bell Helicopter Textron 412 Series Helicopters

AD/BELL 412/20	Bolts P/N AN4-5A - Pylon Support	12/2009

Requirement:	CANCELLED.
	This AD is cancelled on 19 November 2009.
Background:	This unique Australian AD specified a once-only inspection in accordance with Alert SB 412-88-38 at the next inspection for MR issue after November 1988. The AD is no longer required.

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James Coyne
Delegate of the Civil Aviation Safety Authority

30 September 2009

AD/BELL 412/20

Bolts P/N AN4-5A - Pylon Support

12/2009

Source text

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

Bell Helicopter Textron 412 Series Helic Bell Helicopter Textron 412 Series Helicopters

Bell Helicopter Textron 412 Series Helicopters

AD/BELL 412/20	Bolts P/N AN4-5A - Pylon Support	12/2009

Requirement:	CANCELLED.
	This AD is cancelled on 19 November 2009.
Background:	This unique Australian AD specified a once-only inspection in accordance with Alert SB 412-88-38 at the next inspection for MR issue after November 1988. The AD is no longer required.

AD/BELL 412/20 - Bolts P/N AN4-5A - Pylon Support - CANCELLED

Plain English Summary

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Current sections

Bell Helicopter Textron 412 Series Helicopters

Bell Helicopter Textron 412 Series Helicopters

AD/BELL 412/20

AD/BELL 412/20

Bolts P/N AN4-5A - Pylon Support

Bolts P/N AN4-5A - Pylon Support

12/2009

12/2009

Source text

Bell Helicopter Textron 412 Series Helic Bell Helicopter Textron 412 Series Helicopters

Bell Helicopter Textron 412 Series Helicopters

AD/BELL 412/20 AD/BELL 412/20

AD/BELL 412/20

Bolts P/N AN4-5A - Pylon Support Bolts P/N AN4-5A - Pylon Support

Bolts P/N AN4-5A - Pylon Support

12/2009 12/2009

12/2009