Service difficulty report · Engine · Boeing 7472D3B

Difficulty date
April 30, 2006
Submitted
May 25, 2006
Operation
Air carrier
Aircraft
N506MC
Make and model
Boeing 7472D3B
Aircraft serial
21252
Aircraft time
85,996 hours, 17,831 cycles
Engine
Ge CF650E2
Engine time
75,168 hours, 15,802 cycles
Part
Engine
Condition
Damaged
Location
Nr 4
Stage of operation
CR
How discovered
O
Nature of condition
E, M, Y
Precautionary procedure
A

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

What was found

NR 4 ENGINE COMPRESSOR STALL 33,000. TAT-7, MACH .84, ENGINE SHUT DOWN. HIGH VIBRATION, EGT RISE. NO EXCEEDANCES. AIR TUR BACK. NR 4 ENGINE CHANGED IAW ATLAS AIR ENGINE CHANGES SHEET REV 15 JAN 02.

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