AD/PHZL/89 - Propeller Mounting Flanges (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.

Propellers - Variable Pitch - Hartzell AD/PHZL/89 Propeller Mounting Flanges 11/2007 TX

Applicability: Hartzell Propeller Inc. model HC-B5MP-3( )/M10282A( )+6 and HC-B5MP-3( )/M10876( )( )( )( ) five-bladed propellers. These propellers are installed on the following aircraft: Aeroplane Manufacturer Model Propeller/Blade Supplemental Type Certificate Nord 262(A) Frakes (Mohawk) HC-B5MP-3(A)/M10282A(B)+6 SA2369SW Short Brothers SD3-30 (Sherpa) HC-B5MP-3A/M10282AB+6 -- Short Brothers SD3-60 HC-B5MP-3C/M10876ASK -- Short Brothers SD3-60-200 (Sherpa) HC-B5MP-3C/M10876ANSK -- PZL Mielec PZL-M18( ) (Dromader) HC-B5MP-3C/M10876(A)( ) SA1014GL

The parentheses appearing in the propeller model number indicates the presence or absence of an additional letter(s) that varies the basic propeller model. This AD still applies regardless of whether these letters are present or absent in the propeller model designation. Requirement: 1. If either the propeller mounting flange or the engine mounting flange has not been resurfaced using either Hartzell Propeller Inc. Alert Service Bulletin (SB) No. A203A, dated 5 January 1995, or SB No. HC-SB-61-275, dated 2 June 2005, perform a torque inspection of the propeller mounting bolts.