Service difficulty report · Engine · Boeing 74747UF

Difficulty date
June 12, 2025
Submitted
July 17, 2025
Operation
Air carrier
Aircraft
N476MC
Make and model
Boeing 74747UF
Aircraft serial
29256
Aircraft time
101,396 hours, 18,505 cycles
Engine
Ge CF680C2B1F
Part
Engine
Part serial
706646
Condition
Failed
Location
Nr 1
Stage of operation
CL
How discovered
O
Nature of condition
A, J
Precautionary procedure
E, F, A

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

What was found

ENGINE 1 DUAL FIRE LOOP INDICATION CONFIRMED BY VISUAL OF FLAME COMING FROM INTAKE AND SMOKE OUT EXHAUST AFTER DISCHARGING BOTH FIRE BOTTLES. C/W ENGINE CHANGE PER TASK CARD 71-099-02-01. NO FURTHER DEFECTS NOTED. ORIGINAL SUBMISSION DATE; 6/16/2025.

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