AD/J4100/11 - Attachment Bracket for Door Restraint Cable (Cth)

AIRWORTHINESS DIRECTIVE For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (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.

BAe Systems (Operations) Jetstream 4100 Series Aeroplanes AD/J4100/11 Attachment Bracket for Door Restraint Cable 4/2008 DM

Applicability: Model Jetstream Series 4100 aircraft, constructor's numbers 41004 through 41086. Requirement: Action in accordance with BAe Regional Aircraft Mandatory Service Bulletin J41-A53-024 Revision 1, or later CAA/EASA approved revision.

Note: UK CAA AD 004-04-96 refers. Compliance: Part 1 of the Requirement document:

Unless the initial inspection is already accomplished, before the accumulation of 3,000 flights or within 30 days after 20 February 2008, whichever occurs later. Inspect thereafter at intervals not to exceed 1,000 flights; until accomplishment of Part 2 of the Requirement document.

Part 2 of the Requirement document:

Incorporation of Modification JM41562A cancels the inspection requirements of this Directive. This Airworthiness Directive becomes effective on 20 February 2008. Background: Cracks were reported in fuselage frame 179 at the attachment bracket for the door restraint cable. The cracks have been attributed to an initial high load on the cable with continued high load use. This directive requires an inspection and cable adjustment check, repeat inspections, and closing action comprising installation of new doublers to reinforce the frame.