Commonwealth legislation

AD/BEECH 55/77 - Engine Controls Support Structure

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

Owners/operators of specified Beechcraft Baron 58-series aeroplanes must install Beech Kit No. 58-5016-1 S per Service Bulletin 2439 to modify the engine‑control support structure within 100 hours’ time‑in‑service after 4 Feb 1993. The work, required to prevent loss of throttle control from cracked attachment clips, imposes a one‑off parts, labour and downtime cost on operators.

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AD/BEECH 55/77 - Engine Controls Support Structure

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Beechcraft 55, 58 and 95-55 (Baron) Series Aeroplanes

AD/BEECH 55/77 Engine Controls Support Structure 2/93

Applicability: Models Serial Numbers

58 and 58A TH-1389 and TH-1396 through TH-1662

58TC and 58TCA TK-147 and TK-151

58P and 58PA TJ-436 and TJ-444 through TJ-497 Requirement: Modify the engine controls support structure in accordance with the instructions to

Beech Kit No. 58-5016-1 S as referenced in Beech Service Bulletin 2439.

Note: FAA AD 92-23-04 Amdt 39-8404.

Compliance: Within 100 hours’ time in service after 4 February 1993.

Background: The FAA has received several reports of cracked angle attachment clips that support the engine controls inside the pedestal on the affected aircraft. The actions specified by this Directive are intended to prevent the loss of engine throttle control caused by failure of the attachment clips.

Source text

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

1 AD/BEECH 55/77 - Engine Controls Support Structure