Service difficulty report · Fseu · Boeing 75733N

Difficulty date
October 21, 2026
Submitted
October 26, 2026
Operation
Air carrier
Aircraft
N77865
Make and model
Boeing 75733N
Aircraft serial
32589
Aircraft time
74,479 hours, 22,098 cycles
Engine
Rroyce RB211535E4
Part
Fseu
Part number
285N001140
Part serial
D03319
Condition
Faulted
Location
Flap/Slat Sys
Part time
64,729 hours, 20,586 cycles
Stage of operation
DE
How discovered
O
Nature of condition
F
Precautionary procedure
B

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

What was found

TE FLAP DISSAGREE ICAS MSG. FLAPS STUCK JUST PAST 20 DEGREES LANDED FLAPS 20. EXTENDED FLAPS AND SLATS. PERFORMED GVI, NO DISCREPANCIES FOUND. FOUND FSEU 1 FAULT MSG. 305 FROM PREVIOUS FLIGHT LEG. UNABLE TO PERFORM GROUND TEST ON FSEU 1 DUE TO UNRESPONSIVE/FAULTY LRU. FOUND FSEU 1 INTERMITTENTLY FAILING. R & R FSEU 1 IAW AMM 27-51-01. OPS CHKD GOOD. RAN FLAPS UP AND DOWN SEVERAL CYCLES WITH ELECTRIC HYDRAULICS AND ENG HYDRAULICS, NO FAULT FOUND.

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