Service difficulty report · Electronic Unit · Boeing 757200

Difficulty date
December 24, 2023
Submitted
December 26, 2023
Operation
Air carrier
Aircraft
N19130
Make and model
Boeing 757200
Aircraft serial
28970
Aircraft time
95,778 hours, 21,129 cycles
Part
Electronic Unit
Part number
285N001140
Part serial
D02673
Condition
Faulty
Location
Flap/Slats
Part time
95,777 hours, 21,129 cycles
Stage of operation
DE
How discovered
C
Nature of condition
F
Precautionary procedure
A

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

What was found

TE FLAP DISAGREE UPDATED LABOR HRS ALL 3 FSEU''S SHOW NO FAULTS AND RAN FLAPS SEVERAL TIMES. #1 FSEU SHOWED FLAP DIAGREE LAST LEG AND SHOWED INTERMITTENT. TS PER FIM 27-51 FAULT TREE 808, FOUND OVERLOAD TRIP INDICATOR ON FLAP TRANSMISSIONS #1 #6 . RESET TRIP INDICATORS RAN FLAPS THROUGH 4 FULL CYCLES NO OTHER DEFECTS NOTED. NO HISTORY FOUND IN PAST 90 DAYS. PER FIM "RESET OVERLOAD TRIP INDICATOR AND MONITOR THE TE FLAP TRANSMISSION DURING FUTURE FLIGHTS" INFO ONLY UPDATE: REFERENCE LOG PAGE 6642184 FOR FSEU #1 REPLACEMENT. FSEU #1 REQUIRED REPLACEMENT PER LOG PAGE 6637289. REMOVED AND REPLACED #1 FSEU PER AMM 27-51-01. PERFORMED OPS CHECK. OPS CHECK GOOD.

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