Commonwealth legislation

AD/BEECH 90/93 - Inspection for Flight Control Interference with Wiring

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

Requires operators of specified Beechcraft C90A serial numbers to inspect for interference or inadequate clearance between flight control mechanisms and any component forward of the instrument panel, and to secure any wiring or components found, following Raytheon Mandatory Service Bulletin SB 27-3232. Must be done within 25 hours’ time-in-service after 19 May 1999, and aircraft must not fly again until corrections are made. The measure responds to a reported incident of a control-column restriction by avionics wiring; owners/operators bear inspection, rectification and downtime costs.

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AD/BEECH 90/93 - Inspection for Flight Control Interference with Wiring

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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 Beechcraft 90 and 65-90 (King Air) Series Aeroplanes

AD/BEECH 90/93 Inspection for Flight Control

Interference with Wiring

Applicability: This Directive is applicable to the following aircraft

Model Serial Numbers

7/99 DM

C90A LJ-1459 through LJ-1504 inclusive, LJ-1506 through LJ-1523 inclusive, and LJ-1525 through LJ-1530 inclusive.

Requirement: Unless previously accomplished;

Inspect for interference or inadequate clearance between the flight control mechanism and any component located forward of the instrument in accordance with Raytheon Mandatory Service Bulletin (SB) 27-3232 dated March 1999.

2. If interference or inadequate clearance is found during the Requirement 1 inspection then secure all components clear of the flight control mechanisms in accordance with SB 27-3232.

Note 1. If Raytheon Safety Communiqué No 149 dated August 1998 or No 149 Rev 1 dated November 1998 has been carried out no further action is required.

Note 2. FAA AD 99-09-15 refers.

Compliance: 1. Within 25 hours’ time in service after 19 May 1999.

Prior to further flight after inspection

This Airworthiness Directive becomes effective on 19 May 1999.

Background: There has been a reported incident were a Raytheon Beech Model 1900 aeroplane temporarily lost aileron and elevator control when the control column became restricted. Upon investigation the cause was found to be electrical/avionics wiring located forward of the instrument panel entangled in the flight control system “T” column.

Source text

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