AD/BELL 205/33 - Synchronised Elevator - Inspection, Modification and Retirement

What this is: An Airworthiness Directive (mandatory safety instruction) for helicopter owners and operators.

What it requires: Owners of specific Bell helicopters must inspect, modify, or retire (take out of service) certain synchronised elevator components—parts that help control the helicopter's pitch.

Who it affects: Only applies to Bell Model 204-A1 helicopters fitted with specific elevator parts (part numbers 205-030-056-35 or 205-030-056-37).

What you must do: Follow the technical procedures detailed in Bell Service Bulletin No. 205-76-5, Revision "A" (a manufacturer instruction manual). The directive itself doesn't spell out the steps—it points to that external document for the actual inspection or modification process.

Why it matters: This ensures potentially faulty elevator components are identified and fixed or removed before they can cause flight control problems.

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

Bell Helicopter Textron 205 Series Helicopters

AD/BELL 205/33 Synchronised Elevator - Inspection,

Modification and Retirement Applicability: All mode 204-A1 with synchronised elevator P/N 205-030-056-35 and -37. Document: Bell SB No. 205-76-5, Rev. “A”.

Compliance: As detailed in requirement document.

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