AD/PHS/24 Amdt 1 - Propeller System Actuator Yoke Arms (Cth)

AIRWORTHINESS DIRECTIVE On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/PHS/24 and issues the following 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 - Hamilton Standard AD/PHS/24 Amdt 1 Propeller System Actuator Yoke Arms 10/2006

Applicability: Hamilton Sundstrand Model 14RF-19 propellers with propeller system actuator yoke arms, part number (P/ N) 810436-2, which might be installed in actuator assemblies P/N 790199-6.

Note 1: These propellers are installed on, but not limited to, SAAB 340 aeroplanes. Requirement: 1. Replace all actuator yoke arms, P/N 810436-2 with improved actuator yoke arms, P/N 810436-3 in accordance with the Accomplishment Instructions of Hamilton Sundstrand Service Bulletin 14RF-19-61-113, Revision 1, dated 2 September 2003 or later FAA approved revisions.

2. Mark newly installed actuators in accordance with the Accomplishment instructions of Hamilton Sundstrand Service Bulletin 14RF-19-61-113, Revision 1, or later FAA approved revisions.

3. Do not install any actuator yoke arms, P/N 810436-2, into any propeller assembly.

Note 2: FAA AD 2006-16-01 Amdt 39-14701 dated 24 July 2006 refers. Compliance: 1. Within 60 days after the effective date of this AD, unless previously accomplished.