SDR 2021F00172

Service difficulty report · Control Box · Boeing 7878

Difficulty date
June 6, 2021
Submitted
June 22, 2021
Operation
Air carrier
Aircraft
N966AM
Make and model
Boeing 7878
Aircraft serial
35311
Aircraft time
29,780 hours, 3,815 cycles
Engine
Ge GENX1B54
Part
Control Box
Part number
2121M99P03
Part serial
UNLM3840
Condition
Failed
Location
Eng Config
Part time
15,509 hours, 1,983 cycles
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
D

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

What was found

AFTER ENGINE START R ENG CONTROL MESSAGE ON STATUS. AIRCRAFT RETURNED TO PLATFORM DUE TO DURING RIGHT ENGINE START, THE RIGHT ENGINE CONTROL LIGHT TURNED ON. MAINTENANCE PERSONNEL PERFORMED BITE TO RIGHT EEC IAW FIM DMC-B787-A-G733-20-F1-51A-421-A-A, SHOWING FAILURE CODE 732 466 52; SO THE RIGHT ENGINE CONFIGURATION BOX ENGINE WAS REPLACED IAW AMM DMC-BT87-A-673-21-07-00A-520A-A, TESTED CORRECT.

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