Service difficulty report · Blanket · Bell 429

Difficulty date
November 3, 2011
Submitted
January 23, 2013
Operation
Air carrier
Make and model
Bell 429
Engine
Pwc PW207D
Part
Blanket
Part number
429363111102
Condition
Separated
Location
Exhaust
Part time
137 hours
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) NR 2 ENGINE EXHAUST EJECTOR INSULATING BLANKET SEPARATED AND WAS PULLED INTO THE TAIL ROTOR DRIVETRAIN. DAMAGED COMPONENTS INCLUDE: FANSHAFT ASSY, FWD OIL COOLER BLOWER, AFT OIL COOLER BLOWER, OIL COOLER ASSY, AND AFT SEGMENTED TAIL ROTOR DRIVESHAFT. NR 1 ENGINE EXHAUST EJECTOR ALSO SHOWS SIGNS OF IMPENDING BLANKET SEPARATION. ACFT WAS RETURNED TO SERVICE AFTER COMPONENTS WERE REPLACED.

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