Commonwealth legislation

AD/BEECH 55/84 - Inspection for Flight Control Interference with Wiring

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

Requires inspection and, if needed, securing of any electrical/avionics wiring that interferes with flight‑control mechanisms on specified Beechcraft 58/58A/95‑55 serial numbers, carried out in accordance with Raytheon Mandatory Service Bulletin SB 27‑3232.

Operators and maintenance personnel must complete the inspection within 25 hours’ time in service after 19 May 1999 and must secure any interfering components before the next flight (see Compliance and Requirement). Costs and downtime are borne by aircraft operators; the measure responds to a reported control restriction caused by entangled wiring.

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AD/BEECH 55/84 - 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 55, 58 and 95-55 (Baron) Series Aeroplanes

AD/BEECH 55/84 Inspection for Flight Control

Interference with Wiring

Applicability: This Directive is applicable to the following aircraft:

Model Serial Numbers

7/99 DM

58 and 58A TH-1806 through TH-1840 inclusive, TH-1842 through TH-1854 inclusive, TH-1856, TH-1860 through TH-1867 inclusive, and TH-1870.

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.