Service difficulty report · Engine · Boeing 7772Q8

Difficulty date
September 29, 2012
Submitted
October 17, 2012
Operation
Air carrier
Aircraft
N776AM
Make and model
Boeing 7772Q8
Aircraft serial
28692
Aircraft time
40,058 hours, 6,265 cycles
Part
Engine
Part number
GE9094B
Part serial
900481
Condition
Intermittent
Location
Right
Part time
24,251 hours, 2,750 cycles
Stage of operation
TO
How discovered
O
Nature of condition
O
Precautionary procedure
C

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

What was found

ACFT REJECTED TAKE AT 70 KNOTS WITH A GROSS WEIGHT OF 268 000 KG DUE TO RIGHT ENGINE STRONG EXPLOSION WITHOUT ADVISE ON ENGINE PARAMETERS OR EXCEEDS IN CREW CABIN WAS LISTENING. MX PERFORMED FIM 71-05 TASK 807 PROCEDURE; A RT ENGINE STALL INSPECTION IAW MM 71-00-00; A HIGH PRESSURE COMPRESSOR STAGES 1, 5, 6, 9; BLADE HIGH AND LOW PRESSURE TURBINE BOROSCOPE INSP IAW MM 72-00-00; THE CHIP DETECTOR WERE NOT DETECTED METAL PARTICLES; VSV AND VBV HARD VANE INSPECTION WERE PERFORMED IAW MM 75-30-00, NO DAMAGES WERE FOUND AND OPS TEST WAS PERFORMED IAW MM 71-00-00, TESTED CORRECT. AS A PRECAUTIONARY ACTION, THE RT ENGINE WAS REPLACED IAW MM 71-00-02, TESTED CORRECT.

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