Service difficulty report · Actuator · Boeing 757224

Difficulty date
October 3, 2021
Submitted
October 6, 2021
Operation
Air carrier
Aircraft
N17126
Make and model
Boeing 757224
Aircraft serial
27566
Aircraft time
85,013 hours, 20,962 cycles
Part
Actuator
Condition
Tripped
Location
Flap System
Stage of operation
LD
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

LE SLAT DISAGREE DEBRIEF FROM CREW WHEN HE SELECTED FLAPS 1 THE FLAP INDICATOR RETURNED FLAPS TO NORMAL CONFIG AND PERFORMED FSEU BITE. ON CYCLED FLAPS UP AND DOWN SEVERAL TIMES WITH NO FAULTS. CHECKED STOPPED AT 1/2 AND A LEADING EDGE SLAT DISAGREE MSG CAME ON. HE FLIGHT LEG ZERO NUMBER ONE FSEU HAD A FLAP DISAGREE FAULT TRAILING EDGE FLAP OVERLOAD TRIP INDICATORS AND FOUND ALL GOOD IS 75% SURE IT WAS LEADING EDGE AND NOT TRAILING EDGE. MESSAGE NUMBER 305. NUMBER TWO FSEU HAD A FLAP ARM DISAGREE EXCEPT FOR THE LEFT INBOARD TRAILING EDGE INDICATOR. SEE LP MESSAGE NUMBER 327. OTHER FAULTS ARE PRESENT IN LEG ZERO BUT 7171890. RAN OUT OF TIME AND DID NOT CHECK THE LEADING EDGE SLAT APPEAR TO BE WHEN ON THE GROUND AND NOT IN FLIGHT. OVERLOAD INDICATORS. REF LP 7170593 FOUND LEFT WING TRAILING EDGE FLAP INBOARD TEE GEARBOX OVERLOAD INDICATOR TRIPPED. RESET.