Commonwealth legislation

AD/CESSNA 650/1 - Elevator Balance

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

The Civil Aviation Safety Authority requires specific serial-numbered Cessna 650 (Citation III) aeroplanes to have both elevators removed and re‑balanced per Cessna Alert Service Letter SLA 650‑27‑20 within 100 flight hours or 60 days after 7 December 1988. It targets listed owners/operators to fix incorrectly balanced elevators that could cause structural dynamic instability above 45,000 ft and restores the original enroute altitude limit.

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AD/CESSNA 650/1 - Elevator Balance

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Cessna 650 (Citation III) Series Aeroplanes

AD/CESSNA 650/1 Elevator Balance 1/89 DM

Applicability: All models S/No. 650-0094, 650-0096, 650-0100 to 650-0103, 650-0105 to 650-0107,

650-0117, 650-0120, 650-0123, 650-0125 to 650-0129, 650-0131 to 650-0159,

650-0161 and 650-0162.

Requirement: Remove both elevators and re-balance in accordance with Cessna Alert Service Letter SLA 650-27-20.

Note 1: This Directive restores “Enroute Operational Altitude Limit” to the original Approved Flight Manual limit. (Temporary Flight Manual Amdt A/C650/1 refers).

Note2: FAA AD 88-23-04 refers.

Compliance: Within 100 hours or 60 days time in service after 7 December 1988. Background: Some aircraft may have been manufactured with incorrectly balanced elevators.

Analysis has shown that the incorrect balance may result in a structural dynamic

instability above 45 000 ft.

Source text

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

1 AD/CESSNA 650/1 - Elevator Balance