Service difficulty report · Bearing Cage · Boeing 737522

Difficulty date
July 17, 2008
Submitted
July 28, 2008
Operation
Air carrier
Aircraft
N934UA
Make and model
Boeing 737522
Aircraft serial
26662
Aircraft time
44,487 hours, 31,989 cycles
Engine
Cfmint CFM563C1
Part
Bearing Cage
Condition
Failed
Location
Lt Engine
Stage of operation
CL
How discovered
O
Nature of condition
Y, J
Precautionary procedure
O

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

What was found

LT ENG FAILED ON TAKEOFF. AFTER TAKEOFF APPROX 500 FT AGL LOUD BANG, ENG SPOOLED DOWN. LT ENG FAILED ON TAKEOFF. AFTER TAKEOFF LOUD BANG ENGINE SPOOLED DOWN. IFSD. CREW SECURED ENGINE. INLET AND EXHAUST CHECKED CLEAN. LCL AMT REPORTS FWD CHIP DET (AGB-TGB) FULL OF METAL. MID CHIP DETECTOR FWD SUMP) ALSO METAL. BOTH CHIP DETS HAVE FERROUS & NON FERROUS METAL. ECM EGT EXCD 978DEGS. THE ENGINE WAS REPLACED. NO ADDITIONAL FINDINGS ARE EXPECTED DUE TO FLEET RETIREMENT.