Service difficulty report · Flap System · Boeing 757224

Difficulty date
June 29, 2024
Submitted
July 3, 2024
Operation
Air carrier
Aircraft
N12109
Make and model
Boeing 757224
Aircraft serial
27299
Aircraft time
110,211 hours, 25,697 cycles
Part
Flap System
Part number
UNKNOWN
Condition
Faulted
Stage of operation
AP
How discovered
O
Nature of condition
F
Precautionary procedure
L

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

What was found

TE FLAP DISAGREE EICAS B A FLAP POSITION DOES NOT AGREE WITH THE FLAPS POSITION SELECTION FLAPS AT 20 WHEN HANDLE SELECTED TO 25 SDR SELECTED FOR GO AROUND FOR FLAP ISSUE TROUBLESHOOTED PER B757 FIM 27-51 FAULT TREE 808. FSEU BITE C/OU T. NO EXISTING FAULTS ON FSEU AND FAULT HISTORY NOT SHOWING TE F LAPS CORRELATED FAULTS. INSP'D ALL 8 OVERLOAD INDICATORS ON FLAP TRANSMISSIONS FINDING #8 TRIPPED. RT WING MOST OUTBOARD FLAP TR ANSMISSION. RESET OVERLOAD INDICATOR AND FLAP OPS C/OUT FROM UP TO 30 TWICE. OVERLOAD IND STAYED IN AFTER FLAP OPS. TOMC INFORME D. NO HISTORY. OK FOR SVC IAW FIM 27-51 T808. NOT ON SDR LIST