Document ID: chunk:federal_register_of_legislation:F2009L02646:body:0
Version: federal_register_of_legislation:F2009L02646
Segment Type: other
Provision Reference: 
Character Range: 0–2458

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 - Hamilton Standard
AD/PHS/25  Propeller Blade Corrosion  8/2009

Applicability:  Hamilton Sundstrand Propellers model 568F propellers with blades, part numbers (P/Ns) R815505R2, R815505R3, R815505R4, R815505S2, and R815505S3, that have a serial number (SN) listed in Table 1 of this AD, installed.

                Table 1 - Affected Propeller Blades by SN

                31   259   1510  2299  2470      20010732
                33   265   1515  2300  2473      20010917
                34   277   1803  2383  2492      20020568
                37   278   1813  2459  2510
                40   403   1823  2460  2535
                43   747   1834  2462  2577
                105  1007  1917  2464  2625
                230  1031  2072  2469  20010731

                Note 1:  These propellers are installed on, but not limited to, ATR-GIE Avions de Transport Regional ATR-42-400 and -500, ATR72-210A, -500, and Construcciones Aeronauticas, S.A. C-295 aeroplanes.
Requirement:    Remove from service blades, P/Ns R815505R2, R815505R3, R815505R4, R815505S2, and R815505S3 that have a SN listed in Table 1 of this AD.

                Note 2:  FAA AD 2009-07-06 Amdt 39-15865 dated 20 March 2009 refers.
Compliance:     Within 30 days after the effective date of this AD, unless previously accomplished.
                This Airworthiness Directive becomes effective on 30 July 2009.

Background:  This AD results from reports of blades with corrosion pits in the tulip area of the blades.  The issuing of this AD is intended to prevent cracks from developing in the tulip area of the blade, which could result in separation of the blade and loss of aeroplane control.

James Coyne
Delegate of the Civil Aviation Safety Authority

16 June 2009