AD/AS 355/95 - Fuselage Centre Cross-Member under Cabin Floor (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.

Eurocopter AS 355 (Twin Ecureuil) Series Helicopters AD/AS 355/95 Fuselage Centre Cross-Member 7/2007 TX under Cabin Floor

Applicability: Model AS355 E, F, F1, F2 and N helicopters, all serial numbers, delivered before 1 January 2007, and equipped with collective-to-yaw control coupling with or without an Automatic Flight Control System. Requirement: 1. Confirm installation of the cross-member at station X 2165 and of the doublers at stations X 2325 and Y 269 as detailed in the Accomplishment Instructions paragraph of Eurocopter Alert Service Bulletin (ASB) 53.00.23 original issue, or later EASA approved revision.

If the cross-member and the doublers are installed, no further action is required.

2. If the cross-member and/or doublers are not installed, check for cracks by a visual or a dye penetrant inspection, the centre cross-member at station X 2325, in the area around the attachment point of the tail rotor directional ball-type control as detailed in the Accomplishment Instructions paragraph of ASB 53.00.23 original issue, or later EASA approved revision.