Commonwealth legislation

AD/BELL 427/8 - Vertical Fin Attachment

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This Airworthiness Directive requires owners/operators of specified Bell 427 helicopters (serial numbers 56001–56057, 58001–58002) to inspect the vertical fin to tail rotor gearbox attachment and fit new attachment hardware following Bell Alert Service Bulletin 427‑06‑15 or a later Transport Canada‑approved revision. Compliance must be done by 31 December 2007; the AD is effective 20 December 2007. Operators must arrange and fund the inspection and hardware installation.

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Current sections

Direct links to the current provisions in AD/BELL 427/8 - Vertical Fin Attachment.

Bell Helicopter Textron 427 Series Helic

Bell Helicopter Textron 427 Series Helicopters

AD/BELL 427/8	Vertical Fin Attachment	13/2007

Applicability:	BHTC Model 427 helicopters, serial numbers 56001 through 56057, 58001 and 58002.
Requirement:	Inspect the area of the vertical fin to tail rotor gearbox attachment and install a new hardware, in accordance with BHTC Alert Service Bulletin 427-06-15 original issue, dated 13 November 2006, or later Transport Canada approved revision.Note: Transport Canada AD CF-2007-22 refers.
Compliance:	Before 31 December 2007, unless already accomplished.
	This Airworthiness Directive becomes effective on 20 December 2007.
Background:	The manufacturer has determined that the existing hardware connecting the vertical fin to the tail rotor gearbox requires upgrading, in order to ensure vertical fin security.

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David Villiers
Delegate of the Civil Aviation Safety Authority

7 November 2007

AD/BELL 427/8

Vertical Fin Attachment

13/2007

Source text

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

Bell Helicopter Textron 427 Series Helic Bell Helicopter Textron 427 Series Helicopters

Bell Helicopter Textron 427 Series Helicopters

AD/BELL 427/8	Vertical Fin Attachment	13/2007

Applicability:	BHTC Model 427 helicopters, serial numbers 56001 through 56057, 58001 and 58002.
Requirement:	Inspect the area of the vertical fin to tail rotor gearbox attachment and install a new hardware, in accordance with BHTC Alert Service Bulletin 427-06-15 original issue, dated 13 November 2006, or later Transport Canada approved revision.Note: Transport Canada AD CF-2007-22 refers.
Compliance:	Before 31 December 2007, unless already accomplished.
	This Airworthiness Directive becomes effective on 20 December 2007.
Background:	The manufacturer has determined that the existing hardware connecting the vertical fin to the tail rotor gearbox requires upgrading, in order to ensure vertical fin security.

AD/BELL 427/8 - Vertical Fin Attachment

Plain English Summary

Deep dive

Current sections

Bell Helicopter Textron 427 Series Helicopters

Bell Helicopter Textron 427 Series Helicopters

AD/BELL 427/8

AD/BELL 427/8

Vertical Fin Attachment

Vertical Fin Attachment

13/2007

13/2007

Source text

Bell Helicopter Textron 427 Series Helic Bell Helicopter Textron 427 Series Helicopters

Bell Helicopter Textron 427 Series Helicopters

AD/BELL 427/8 AD/BELL 427/8

AD/BELL 427/8

Vertical Fin Attachment Vertical Fin Attachment

Vertical Fin Attachment

13/2007 13/2007

13/2007