Commonwealth legislation

AD/JETSTREAM/26 - Propeller Governor Low Speed Setting From 94% to 96%

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This airworthiness directive requires Jetstream 3100 operators to set or verify the propeller governor low‑speed stop at 95.5–96.0% (raised from 94%) to ensure take‑off power after reported torque oscillations. The Civil Aviation Safety Authority mandates inspection/adjustment per BAe ASB No 76‑A‑JA 880442 Rev 1; operators/maintenance providers must comply within 50 hours time‑in‑service or by 22 Aug 1988, and before first flight after installing an engine or governor. Operators bear the maintenance cost and scheduling burden.

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AD/JETSTREAM/26 - Propeller Governor Low Speed Setting From 94% to 96%

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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 British Aerospace BAe 3100 (Jetstream) Series Aeroplanes

AD/JETSTREAM/26 Propeller Governor Low Speed

Setting From 94% to 96%

Applicability: All Jetstream 3100 series aircraft.

Requirement: Action in accordance with BAe ASB No 76-A-JA 880442 Rev 1.

Note: FAA AD 88-13-02 refers.

10/88 DM

Compliance: 1. Unless already accomplished within 50 hours TIS or by 22 August 1988 whichever occurs first.

Prior to first flight after installation of an engine or propeller governor.

Background: During a recent overseas accident investigation the pilot noted dual torque oscillation prior to the accident. To ensure take-off power is available this Directive requires operators to check that the governor low speed stop is correctly set between 95.5 and

96.0 percent.

Source text

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