Ad/PW4000/18 - 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.

Pratt and Whitney Turbine Engines - PW4000 Series

AD/PW4000/18		State of Design Airworthiness Directives			19/2010
Applicability:	Pratt and Whitney PW4000 engines - all series.
Requirement:	1.    Determine the applicability of the FAA Airworthiness Directives (AD) listed in Table 1. 2.    If it is determined that a FAA AD listed in Table 1 is applicable and has not been previously accomplished, perform the actions required by that AD or later        revision.        Service Bulletins approved by FAA as an Alternative Methods of Compliance (AMOC) to the ADs listed in Table 1 are considered acceptable for compliance with the equivalent requirements of this Airworthiness Directive.
Table 1
FAA AD		Service Bulletin	Title
90-22-02		ASB PW4ENG 72-328	Low Pressure Turbine Shaft
93-08-16		ASB 747-73A2055, ASB 767-73A0033	Fuel Pump
2003-19-15		Refer to the list of SBs in the FAA AD	High-Pressure-Compressor (HPC) Surges
2006-22-13		SB PW4G-112-72-282, Revision 1	Anti-rotation Slots
2007-04-26		ASB PW4G-112-A72-280 Revision 2	High Pressure Compressor (HPC) exit brush seal packs
2008-24-13		ASB PW4ENG A73-214 Revision 2	Electronic Engine Controls (EECs)
2009-04-02		SB PW4G-112-72-290	Front Turbine Hub

Note 1:  FAA  ADs may be accessed via the internet at the following URL:

Compliance:

If a certificate of airworthiness has not been issued for the aircraft - before issue of the certificate of airworthiness.

If a certificate of airworthiness has been issued for the aircraft - before further flight after 60 days from the effective date of this Directive.

This Airworthiness Directive becomes effective on 15 October 2010.

Background:

The FAA ADs listed in Table 1 of this Directive require once-only actions for which the compliance date has passed.  CASA has determined that these ADs may be applicable to some Australian aircraft.  This Directive is issued to ensure compliance with all State of Design ADs.

CASA appreciates that, due to the date of engine manufacture or aircraft configuration, some of the ADs listed in Table 1 will not be applicable to any aircraft presently registered in Australia.

Charles Lenarcic
Delegate of the Civil Aviation Safety Authority

16 September 2010