AD/CF34/9 - High Pressure Compressor Forward Spool (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.

General Electric Turbine Engines - CF34 Series AD/CF34/9 High Pressure Compressor Forward Spool 3/2005

Applicability: GE CF34-3A, CF34-3A2, CF34-1A, CF34-3A1, CF34-3B, and CF34-3B1 series turbofan engines with high pressure compressor (HPC) forward spool, part number (P/N) 6078T56P03 or 6078T56P04, installed.

Note 1: These engines are installed on, but not limited to, Bombardier series Business Jet Model CL-600-2A12 (CL- 601), Bombardier series Business Jet Model CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604), and Bombardier series Regional Jet Model CL- 600-2B19 (Regional Jet Series 100 and 440) aeroplanes. Requirement: 1. Remove from service HPC forward spools, P/Ns 6078T56P03 and 6078T56P04.

2. Do not install any HPC forward spool, P/N 6078T56P03.

Do not install any HPC forward spool, P/N 6078T56P04, with more than 0 CSN.

Note 2: FAA AD 2004-26-02 Amdt 39-13914 refers. Compliance: For Requirement 1.

For CF34-3B engines: At the first piece-part exposure after 6,000 cycles-since-new (CSN), but no later than 20,000 CSN.