Service difficulty report · Engine · Boeing 737990

Difficulty date
July 16, 2011
Submitted
July 19, 2011
Operation
Air carrier
Aircraft
N319AS
Make and model
Boeing 737990
Aircraft serial
33679
Aircraft time
30,188 hours, 11,712 cycles
Engine
Cfmint CFM567B26US
Engine time
28,872 hours, 12,301 cycles
Part
Engine
Part number
CFM567B26
Part serial
888461
Condition
Failed
Location
Nr 1
Part time
28,872 hours, 12,301 cycles
Stage of operation
DE
How discovered
O
Nature of condition
E
Precautionary procedure
E

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

What was found

DURING DESCENT INTO SEA PILOTS NOTICED BUZZING NOISE AND A LITTLE VIBRATION. ENGINE INSTRUMENTS SHOWED NORMAL. THEN ENG FAIL APPEARED ON NR 1 ENGINE AND WENT OUT A FEW SECONDS LATER. NOISE AND VIBRATION CONTINUED. ENGINE LIMIT SURGE STALL CHECKLIST COMPLETED WHICH LED TO ENGINE FAILURE SHUTDOWN CHECKLIST. REMOVED NR 1 ENGINE REF W/O 126954 T/C 78471000. INSTALLED NR 1 ENGINE PER T/C 78471001.