AD/AS 355/52 Amdt 1 - TR Head Pitch Change Plate Bearing Spacer (Cth)

AIRWORTHINESS DIRECTIVE For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/AS 355/52 and issues the following AD under subregulation 39.1 (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 355/52 Amdt 1

TR Head Pitch Change Plate Bearing Spacer 13/2004

Applicability: AS 355 helicopters, versions E, F, F1, F2 and N, fitted with the tail rotor pitch change rotating plates, all part numbers, on which Eurocopter modification (Mod) 07 6554 has not been embodied.

This Airworthiness Directive (AD) does not apply to post-mod 076550 pitch change plate assembly part number 350A33-2030-00.

Requirement: 1. Identify the position of the spacer and the tail rotor pitch change rotating plate as per provisions of paragraph 2.B.1 of Eurocopter AS355 Alert Service Bulletin (ASB) 05.00.33 R1 dated 15 March 2004 or later revision approved by DGAC / EASA.

2. a. Monitor position of the spacer and the tail rotor pitch change rotating plate for alignment as per provisions of paragraph 2.B.2 of ASB 05.00.33 R1 or later revision approved by DGAC / EASA.

The inspection detailed in requirement 2 may be performed by the pilot-in- command, in which case, a certification is to be made by entering AD/AS 355/52 Amdt 1 against the daily inspection certification on the maintenance release. A copy of this directive and of the requirement document must be carried in the helicopter.