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Wed, May 20, 2009

AD: CFM

AD NUMBER: 2009-11-02

MANUFACTURER: CFM International S.A. Model CFM56 Turbofan Engines
SUBJECT: Airworthiness Directive 2009-11-02 

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for CFM International S.A. CFM56-2, CFM56-3, CFM56-5A, CFM56-5B, CFM56-5C, and CFM56-7B series turbofan engines with certain part number (P/N) and serial number (SN) high-pressure compressor (HPC) 4-9 spools installed. This AD requires removing certain HPC 4-9 spools listed by P/N and SN in this AD. This AD results from reports of certain HPC 4-9 spools that Propulsion Technology LLC (PTLLC) improperly repaired and returned to service. We are issuing this AD to prevent cracking of the HPC 4-9 spool, which could result in possible uncontained failure of the spool and damage to the airplane.

FMI: http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgAD.nsf/0/47F886D26F13FB50862575BB004AC8A0?OpenDocument

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