Commonwealth legislation

AD/R22/10 - Tail Rotor Drive Shaft Damper Clips - Replacement

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This Act has been repealed and is no longer in force. It is retained for historical reference.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 Airworthiness Directive (a mandatory safety order issued by the aviation regulator) requires owners and operators of certain Robinson R22 helicopters to replace faulty tail rotor drive shaft damper clips to prevent catastrophic mechanical failure.

Who is affected Owners and operators of Robinson R22 series helicopters with serial numbers 0002 through 0220.

What you must do Replace the tail rotor drive shaft damper clips in accordance with Robinson Service Bulletin SB 14. The work must be completed within 25 hours of flight time after 5 November 1981.

Why this matters The manufacturer identified two failures of these damper clips. If a clip fails, the centre of the tail rotor drive shaft loses support, which can cause the shaft itself to fail. This could result in loss of tail rotor control and potentially cause the helicopter to crash.

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AD/R22/10 - Tail Rotor Drive Shaft Damper Clips - Replacement

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Robinson R22 Series Helicopters

AD/R22/10 Tail Rotor Drive Shaft Damper Clips - Replacement 12/81

Applicability: All model R22 series with S/Nos. 0002 to 0220. Document: Robinson Service Bulletin SB 14.

Compliance: Within 25 hours time in service after 5 November 1981.

Background: The manufacturer advises of two known failures to the tail rotor drive shaft damper clip. Tail rotor drive shaft failure may occur as a result of clip failure and loss of support for the centre of the shaft.

Source text

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