AD/Beech 55/59 Amdt 1 Control Surface Trim Tab Systems (Cth)

AIRWORTHINESS DIRECTIVE

On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/BEECH 55/59 and issues the following AD under subregulation 39.001 (1) of CASR 1998.  The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

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

AD/BEECH 55/59 Amdt 1 Control Surface Trim Tab Systems 12/2005

Applicability:

All models 95-55, 95-A55, 95-B55 and 95-B55A with S/Nos. TC-1 to TC-349 and TC-351 to TC-2105;

All models 95-C55, 95-C55A, D55, D55A, E55 and E55A with S/Nos. TC-350 and TE-1 to TE-1118;

All models 58 and 58A with S/Nos. TH-1 to TH-888;

All models 58P and 58PA with S/Nos. TJ-2 to TJ-128;

All models 58TC and 58TCA with S/Nos. TK-1 to TK-63.

Requirement:

Action in accordance with Beechcraft SI No. 0846-152, Rev. 2.

Compliance:

Within 100 hours time in service after 30 June 1980 and thereafter at intervals not exceeding 110 hours time in service.

The initial compliance time of the previous issue of this Directive remains unchanged by this issue.

This Amendment becomes effective on 24 November 2005.

Background:

The initial issue of this airworthiness directive was to mandate the inspection procedure that defines maximum allowable control surface trim tab free play caused by accumulative wear in tab control linkages and actuators.

This amendment has been issued to increase the time between repetitive inspections to be increased from 100 to 110 hours time in service.  This will allow operators of aircraft maintained to an approved system of maintenance to align the repetitive inspections with other routine maintenance.

David Villiers
Delegate of the Civil Aviation Safety Authority

13 October 2005