AD/EC 225/1 - Main Rotor Blades - Heated (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 EC 225 Series Helicopters AD/EC 225/1 Main Rotor Blades - Heated 11/2008 DM

Applicability: EC 225 LP helicopters, all serial numbers, fitted with main rotor blades P/N 332A11-0055-00 fitted with de-icer assemblies with individual serial numbers below 400 and that have not been repaired in accordance with Repair sheet CN 456 or CN 457. Requirement: For Main Rotor Blades installed on helicopters:

1. On affected main rotor blades, having logged less than 100 flying hours since they were delivered new or since they were repaired at the factory:

Check the two neoprene layers, forming part of the de-icer assembly, for correct cohesion, in accordance with paragraphs 2.B.1, 2.B.2 and 2.B.3 of Eurocopter EC 225 LP Alert service bulletin No. 01A002.

2. On affected main rotor blades, having logged 100 flying hours or more since they were delivered new or since they were repaired at the factory:

Check the two neoprene layers, forming part of the de-icer assembly, for correct cohesion, in accordance with paragraphs 2.B.1, 2.B.2 and 2.B.3 of Eurocopter EC 225 LP Alert service bulletin No. 01A002.