Service difficulty report · Sensor · Boeing 7378H4

Difficulty date
July 24, 2025
Submitted
July 24, 2025
Operation
Air carrier
Aircraft
N8543Z
Make and model
Boeing 7378H4
Aircraft serial
63587
Aircraft time
26,266 hours, 13,448 cycles
Part
Sensor
Condition
Faulty
Location
K Flap Sys
Stage of operation
AP
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 FLAPS TRANSIT LIGHT CAME ON AT 170KTS AND FLAPS 5; THEN BECAME INTERMITTENT WITH GEAR DOWN AND FLAPS 15<[01] T/S FAULT COULD 27-81222 IN REF TO FIM 27-88 TASK 805. LEADING EDGE FLAP F4 OUTBOARD SENSOR FAULTY. REMOVED AND REPLACED IN REF TO AMM 27-88-11. OPS CHECK GOOD.

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