Commonwealth legislation

AD/R22/11 - Clutch Shaft Plug Installation - Inspection

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This Act has been repealed and is no longer in force. It is retained for historical reference.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

2/10 complexity

What this is: A mandatory safety directive (called an Airworthiness Directive) requiring owners of specific Robinson R22 helicopters to inspect and fix a clutch shaft plug installation defect.

Who it affects: Anyone operating Robinson R22 helicopters with serial numbers 002 through 0226.

What you must do: Ensure the clutch shaft plug is installed correctly per Robinson Mandatory Service Bulletin No. 16. This inspection and correction must be completed within 25 hours of flight time after 11 January 1982.

Why it matters: If the plug is fitted incorrectly, it reduces the airspace inside the clutch housing. During normal flight, heat causes fluid to expand, which can push out the clutch forward seal. This could lead to clutch failure and loss of control.

The bottom line: This is a critical, time-sensitive safety fix to prevent mechanical failure in affected helicopters.

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AD/R22/11 - Clutch Shaft Plug Installation - Inspection

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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/R22/11 Clutch Shaft Plug Installation - Inspection 2/82

Applicability: Model R22 with S/Nos. 002 to 0226. Document: Robinson Mandatory SB No. 16.

Compliance: Within 25 hours time in service after 11 January 1982.

Background: Incorrect fitment of a clutch shaft plug reduced the airspace available within the clutch housing, resulting in displacement of a clutch forward seal by fluid expansion during normal heat buildup.

Source text

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