Service difficulty report · Light · Boeing 7377H4

Difficulty date
April 5, 2023
Submitted
April 7, 2023
Operation
Air carrier
Aircraft
N904WN
Make and model
Boeing 7377H4
Aircraft serial
36616
Aircraft time
49,965 hours, 29,987 cycles
Part
Light
Condition
Inoperative
Location
Zn 200 Fus Top
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

EMERGENCY LIGHTS INOP AT L1 LINER EXIT; L1 LOWER EXIT AND R1 LINER EXIT<[01] FOUND EMERGENCY LIGHTS WERE OPERATING WHEN SWITCH WAS IN THE ARMED POSITION AS WELL. REPLACED EMERGENCY LIGHT SWITCH PER WDM 33-51-11 & SWPM 20-83-11. SWITCH OPERATES NORMAL. FOUND FUSES BAD ON FWD LH EMERGENCY POWER SUPPLY (M1675). FOUND L1 LOWER WALL EXIT LIGHT ASSEMBLY SHORTED PER WDM 33-51-12. R&R L1 LOWER WALL EXIT LIGHT PER AMM 33-51-01. FOUND BAD LAMPS ON R1 LINER EXIT LIGHT; RELAMPED PER AMM 33-51-01. REPLACED LH AND RH EMERGENCY POWER SUPPLIES AND BATTERY PACKS PER AMM 33-51-06. OPS CHECKED EMERGENCY LIGHTS PER AMM 33-51-00. EMERGENCY LIGHTS GOOD.

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