Service difficulty report · Sensor · Boeing 7377H4

Difficulty date
June 26, 2023
Submitted
June 29, 2023
Operation
Air carrier
Aircraft
N477WN
Make and model
Boeing 7377H4
Aircraft serial
33988
Aircraft time
63,617 hours, 37,924 cycles
Part
Sensor
Part number
UNKNOWN
Condition
Intermittent
Location
Zn 200 Fus Top
Stage of operation
CR
How discovered
9
Nature of condition
O
Precautionary procedure
A

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

What was found

INTERMITENT LE FLAP TRANSIT LIGHT AND OVHD LE DEVICE PANEL #4 LE FLAP LIGHT INTERMITENT. CYCLED FLAPS TO 1 AND BACK AS PART OF THE QRH PROCEDURE. LIGHTS CONTINUES TO CYCLE. NO ASSEMETRY OR ROLL NOTED.<[01] REMOVED & REPLACED LE FLAP #4 RETRACT SENSOR (S174) PER AMM 27-88-11. ALL OPS CHECKS NORMAL. REF [TTG8Q00LV1YS] FOR CORRECTIVE ACTION.

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