Commonwealth legislation

AD/BAe 146/12 Amdt 1 - Elevator `G Weight Damper

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

5/10 complexity

This AD requires operators of specified BAe 146 aircraft to carry out two mandated elevator/control modifications per BAe Service Bulletin 27‑77‑00955 A & C Rev 2, to eliminate a 2.5 Hz control‑column oscillation and increase stick‑centring force after autopilot cutout. Compliance (per the SB) is mandatory by 30 September 1989; operators bear parts, labour and downtime costs and must schedule the work with approved maintenance providers.

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AD/BAe 146/12 Amdt 1 - Elevator `G Weight Damper

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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 146 Series Aeroplanes

AD/BAe 146/12

Amdt 1

Elevator `G’ Weight Damper 6/89

Applicability: All models with S/Nos referenced in the Requirement document. Requirement: Action in accordance with BAe SB 27-77-00955 A & C Rev 2. Compliance: Prior to 30 September 1989.

Background: This AD contains two concurrent modifications. One to overcome control column oscillation at 2.5 Hz and the other to increase stick centring force following an autopilot cutout. Amendment 1 requires additional work, includes other series aircraft and includes variations dependent on modification state.

Source text

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