SDR 04057

Service difficulty report · Compressor · Boeing 747122

Difficulty date
October 27, 2004
Submitted
October 27, 2004
Operation
Air carrier
Aircraft
N716CK
Make and model
Boeing 747122
Aircraft serial
19753
Aircraft time
87,497 hours, 22,325 cycles
Engine
Pwa JT9D7A
Engine time
80,393 hours, 17,787 cycles
Part
Compressor
Condition
Stalled
Location
Nr 2 Engine
Stage of operation
CR
How discovered
O
Nature of condition
R, J
Precautionary procedure
E

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

What was found

NR 2 ENGINE COMPRESSOR STALLED IN FLT AT FL26,600 FT. EPR DECREASED AND EGT INCREASED. RETARDED THRUST LEVER, EGT DECREASED, PEAK EGT 895 DEGREES. PERFORMED ENGINE STALL INFLT CHECK. PERFORMED RAPID RESTART CHECK. N1 RPM DID NOT INCREASE AFTER RESTART WITH THRUST LEVER. PERFORMED IN FLT ENG. FAILURE/SHUTDOWN QRH-67.