SDR SWAA013120

Service difficulty report · Engine · Boeing 7377H4

Difficulty date
November 15, 2001
Submitted
November 20, 2001
Operation
Air carrier
Aircraft
N799SW
Make and model
Boeing 7377H4
Aircraft serial
28209
Aircraft time
11,479 hours, 5,854 cycles
Engine
Ge CFM56*
Engine time
11,479 hours, 5,854 cycles
Part
Engine
Part number
CFM56
Part serial
874130
Condition
Failed
Location
Nr 1
Stage of operation
CR
How discovered
O
Nature of condition
Y, J
Precautionary procedure
A

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

What was found

(IN-FLIGHT ENG SHUT DOWN, DECLARED EMERGENCY, DIVERSION ) DURING CRUISE NR 1 ENGINE ABRUPTLY MADE A LOUD BANG, FOLLOWED BY A/C SHUTTER AND ABRUPT ROLLBACK OF BOTH N1 & N2 AND EGT (SCALES WENT BLANK). LANDED WITH NR 1 ENG SHUT DOWN. FOUND METAL AT THE NR 1 ENG FWD SUMP CHIP DETECTOR. REMOVED AND REPLACED NR 1 ENG PER MM.

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