Service difficulty report · Switch · Boeing 7377H4

Difficulty date
July 10, 2025
Submitted
July 14, 2025
Operation
Air carrier
Aircraft
N455WN
Make and model
Boeing 7377H4
Aircraft serial
32462
Aircraft time
69,398 hours, 41,464 cycles
Part
Switch
Condition
Out Of Adjust
Location
Zone 200
Stage of operation
AP
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

DURING DESCENT; LEFT OVERWING LIGHT. FLIGHT DIRECTORS BLANKED ON APPROACH; PSEU LIGHT ON LANDING ROLL OUT. FOR LEFT OVERWING LIGHT AND PSEU LIGHT ON LANDING ROLL OUT; PERFORMED PSEU BITE TEST. FOUND FAULTS 52-72020 AND 52-72010. PERFORMED FIM TASKS 52-20 #802 AND 805. FOUND LH OVERWING EMERGENCY EXIT INDICATION SWITCH A (S1104) OUT OF ADJUSTMENT. ADJUSTED LH OVERWING EMERGENCY EXIT INDICATION SWITCH A (S1104) REF. AMM 52-71-22. OPS CHECK OK. FOR FLIGHT DIRECTOR DEFECT REFERENCE MAINTENIX ID# TTG8Q013NFX5.

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