SDR SWAA097821

Service difficulty report · Compressor · Boeing 7377H4

Difficulty date
December 10, 2009
Submitted
December 18, 2009
Operation
Air carrier
Aircraft
N726SW
Make and model
Boeing 7377H4
Aircraft serial
27858
Aircraft time
40,044 hours, 23,448 cycles
Engine
Cfmint CFM567B22
Part
Compressor
Part number
0720035
Condition
Stalled
Location
Nr 1 Engine
Stage of operation
IN
How discovered
O
Nature of condition
R
Precautionary procedure
E

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

What was found

DIVERSION - COMPRESSOR STALL NR 1 ENGINE. NR 1 ROLLED BACK ON ITS ON AT FL 360. FUEL FLOW DROPPED OFF AND N1 DECREASED TO ABOUT 40 PERCENT WITH A 40 PERCENT SPLIT BETWEEN ENG NR 2. WENT BOTH & FLT ON IGNITES AND TURNED OFF ENG NR 1. AFTER CHECKLISTS, ENG NR 1 OPERATED NORMALLY. ENGINE NR 1 VIB READ 2 REST OF FLIGHT. PERFORMED BORESCOPE INSPECTION AND REMOVED AND REPLACED NR 1 ENGINE PER MM.

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