Commonwealth legislation

AD/BELL 407/12 - Crew Seat Belt and Restraint Assembly

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

Mandates replacement of crew seat-belt and restraint assemblies on Bell 407 helicopters (serial numbers 53000–53342 and 53344) by installing part number 222-320-823-129 per BHTC Alert Service Bulletin 407-99-29. Operators must complete the replacement by 31 December 2000. The measure addresses reported lap-belt slippage and difficulty releasing the buckle one-handed by requiring non‑slippage assemblies and a revised buckle.

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Current sections

Direct links to the current provisions in AD/BELL 407/12 - Crew Seat Belt and Restraint Assembly.

AD/BELL 407/12 - Crew Seat Belt and Restraint Assembly

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Bell Helicopter Textron Canada (BHTC) 407 Series Helicopters

AD/BELL 407/12 Crew Seat Belt and Restraint Assembly 13/99

Applicability: BHTC Model 407 helicopters, serial numbers 53000 through 53342 and 53344. Requirement: Replace the crew seat restraint assemblies with new ones, part number 222-320-823-

129, as per BHTC Alert Service Bulletin 407-99-29, dated 10 May 1999.

Note: Transport Canada AD CF-99-25 refers.

Compliance: Before 31 December 2000, unless already accomplished.

This Airworthiness Directive becomes effective on 30 December 1999.

Background: The lap portion of a crew seat belt can in some circumstances lose tension as a result of slippage, and may be difficult to release using one hand in emergency situations. To correct the problem, BHTC introduced improved crew seat belt and restraint assemblies with non-slippage features, meeting the latest standard. The rotary buckle is replaced with a buckle that allows for easier release with one hand.

Source text

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

1 AD/BELL 407/12 - Crew Seat Belt and Restraint Assembly