AD/BO 105/25 - State of Design Airworthiness Directives (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 BO 105 Series Helicopters AD/BO 105/25 State of Design Airworthiness Directives 11/2007

Applicability: Eurocopter BO 105 helicopters. Requirement: 1. Determine the applicability of the German Luftfahrt-Bundesamt (LBA) in Table 1 and Transport Canada Aviation (TCA) Airworthiness Directives (AD) listed in Table 2 of this AD.

2. If it is determined that a LBA or TCA AD is applicable and has not been previously accomplished, perform the actions required by that AD. Table 1 LBA AD Effective Date Title 75-103 21 May 1975 Quadruple Nuts - Main Rotor Head 75-106/2 16 June 1975 Hose Assemblies 75-170/2 17 September 1975 Quadruple Nuts and Bolts - Main Rotor Head 75-171 5 August 1975 Power Supply System Connector Plugs 75-191/2 1 October 1975 Load hook Release Wiring 75-238 27 October 1975 Right Outboard Engine Mount Flange 76-136/2 5 October 1978 Gearbox Supports - Service Life 76-255/2 4 October 1976 Dual Hydraulic Booster 76-256/3 19 February 1980 Rotor Brake 77-306 12 December 1977 Input Shaft and Ram Air Ventilation 78-257 18 October 1978 Dual Hydraulic System Selector Valves 78-295/2 21 January 1980 Tail Rotor Blades and Tail Rotor Heads 79-135 20 March 1979 Main Rotor Transmission Bearings 79-136 14 March 1979 Exhaust Pipe Clamps