Commonwealth legislation

AD/BELL 412/32 - Main Driveshaft and Tail Rotor Drive Over-Temperature Indicators

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This AD requires owners/operators of the listed Bell Helicopter 412 serial-numbered helicopters to carry out the actions in Bell Helicopter Alert Service Bulletin 412-93-79 Rev A (compliance from 15 Sep 1994), replacing the zinc chromate primer method with self-adhesive temperature indicators to improve over-temperature detection. Costs fall to operators; the Pilot in Command is explicitly permitted to perform and sign the Part II Serviceability Check.

JSON API

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/BELL 412/32 - Main Driveshaft and Tail Rotor Drive Over-Temperature Indicators.

AD/BELL 412/32 - Main Driveshaft and Tail Rotor Drive Over-Temperature Indicators

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source
Bell Helicopter Textron 412 Series Helicopters

AD/BELL 412/32 Main Driveshaft and Tail Rotor Drive

Over-Temperature Indicators

10/94

Applicability: All model Bell Helicopter Textron 412 Series Helicopters S/N 33001 through 33213, 34001 through 34024 and 36001 through 36086.

Requirement: Action in accordance with Bell Helicopter Alert Service Bulletin 412-93-79 Rev A.

Note: Transport Canada AD CF-94-07 dated 11 April 1994 refers.

Compliance: As specified in the Requirement Document effective from 15 September 1994.

Note: The Pilot in Command may carry out and certify in the maintenance release the Requirement Document Part II Serviceability Check required by this directive.

Background: Bell Helicopter has advised that the self adhesive temperature indicators are a more reliable means of over temperature indication than that provided by the zinc chromate primer stripe.

Source text

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

1 AD/BELL 412/32 - Main Driveshaft and Tail Rotor Drive Over-Temperature Indicators