Tue, Dec 05, 2006
AD NUMBER: 2006-25-01
MANUFACTURER: International Aero
SUBJECT: Airworthiness Directive 2006-25-01
SUMMARY: The FAA is
superseding an existing airworthiness directive (AD) for certain
IAE V2522-A5, V2524-A5, V2527-A5, V2527E-A5, V2527M-A5, V2530-A5,
and V2533-A5 turbofan engines.
That AD currently requires initial and repetitive inspections of
the master magnetic chip detector (MCD) or the No. 1, 2, 3 bearing
chamber MCD. This AD requires the same MCD inspections.
This AD also requires removing certain No. 3 bearings and
removing certain high pressure compressure (HPC) stubshaft
assemblies as mandatory terminating actions to the repetitive MCD
This AD results from IAE developing a terminating action to the
repetitive inspections of the chip detectors, and from expanding
the applicability to include additional serial-numbered engines
with certain No. 3 bearings installed.
We are issuing this AD to prevent failure of the No. 3 bearing,
which could result in an in-flight shutdown (IFSD) and smoke in the
cockpit and cabin.
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