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SDR 9809146638

Open the Markdown

Service difficulty report · Compressor · Boeing 747251B

FAA SDR system

Difficulty date
May 11, 1998
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N638US
Make and model
Boeing 747251B
Aircraft serial
23549
Engine
Pwa JT9D7R4G2
System (JASC)
7230 · Turbine Engine Compressor Section
Part
Compressor
Condition
Stalled
Location
Nr 2 Engine
Stage of operation
DE
Nature of condition
O
Precautionary procedure
E

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

What was found

AT TOP OF DESCENT WITH POWER REDUCTION, THE NR 2 ENGINE COMPRESSOR STALLED. THE ENGINE WAS SHUT DOWN AND A SUCCESSFUL RESTART WAS ACCOMPLISHED AT FL290. ENGINE OPERATION FOR THE REMAINDER OF THE FLIGHT WAS NORMAL. MAINTENANCE INSPECTED THE ENGINE FOR A STALL PER MM 71-00-00 WITH NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE. EXACT PART CAUSING PROBLEM TO BE DETERMINED.