Service difficulty report · Fmu · Boeing 76733A

Difficulty date
February 21, 2011
Submitted
February 25, 2011
Operation
Air carrier
Aircraft
N583HA
Make and model
Boeing 76733A
Aircraft serial
25531
Aircraft time
81,790 hours, 14,775 cycles
Part
Fmu
Part number
810003
Part serial
F57205
Condition
Malfunctioned
Location
Engine
Part time
25,257 hours, 4,680 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

ON TAKEOFF HAD N2 OVERSPEED (106%) FOR LESS THAN 2 SEC (REDUCE POWER TO MAINTAIN LIMIT) RT EEC1/R ENG CONTROL STATUS MESSAGE'S T/O ROLL FUEL FLOW. PERFORMED AMM TASK 72-00-00-206-258-N00. ENG OVERSPEED INSPECTION FOUND (N2 REP 105.6:26)ON ENG EXCEED PAGE PER FIG 601A OVERSPEED OCCURRED IN AREA A. BORESCOPE COMBUSTION LINER, HP & LP TURBINES FOUND OK TASK CARD 72-410-C1-2. CLOSED UP BORESCOPE PLUGS SAFETY & BOEING AMM TASK AMM TASK 71-00-00 TEST 15 CHL A & B ON PIMU SHOW MESSAGE 5VA TR CHECK FAIL LCC T/D CHECK FAIL AOG T/R CHECK FAIL. TASK 7100-00. REMOVED FMU PER MM 73-21-01. REMOVED FUEL PUMP PER AMM73-11-01. INSTALLED FMU PER AMM73-21-01 3A-FIN INSTLD FUEL PUMP PER AMM73-11-01-3A-G1. COMPLETED AMM 73-21-01 & AMM 73-11-01. HIPOWER RUN PEND PER ENG.ACCOMP HI POWER RUN NO DEFECTS NOTED INDICATIONS NORMAL.

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