Commonwealth legislation

AD/BELL 212/52 - Main Driveshaft and Tail Rotor Drive Over-Temperature Indicators

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This directive requires owners/operators of specific Bell 212 serial-number helicopters to install self-adhesive temperature indicators on the main driveshaft and tail rotor drive, and to perform the serviceability checks specified in Bell Helicopter Alert Service Bulletin 212-93-89 Rev A. CASA mandates compliance, costs fall to operators, and the change adopts the manufacturer’s claim of improved over-temperature indication. One required check may be performed and certified by the Pilot in Command, reducing some maintenance burden.

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Current sections

Direct links to the current provisions in AD/BELL 212/52 - Main Driveshaft and Tail Rotor Drive Over-Temperature Indicators.

AD/BELL 212/52 - 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

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Bell Helicopter Textron 212 Series Helicopters

AD/BELL 212/52 Main Driveshaft and Tail Rotor Drive

Over-Temperature Indicators

10/94

Applicability: All model Bell 212 helicopters S/N 30501 through 30999, 31101 through 31311,

32101 through 32142 and 35001 through 35066.

Requirement: Action in accordance with Bell Helicopter Alert Service Bulletin 212-93-89 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 212/52 - Main Driveshaft and Tail Rotor Drive Over-Temperature Indicators