SDR AALA202504245407

Service difficulty report · Relay · Airbus A319112

Difficulty date: April 24, 2025
Submitted: April 25, 2025
Operation: Air carrier
Aircraft: N701UW
Make and model: Airbus A319112
Aircraft serial: 890
Aircraft time: 67,998 hours, 39,947 cycles
System (JASC): 3350 · Emergency Lighting
Part: Relay
Condition: Faulted
Location: Zone 200
Stage of operation: IN
How discovered: C
Nature of condition: L
Precautionary procedure: K

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

What was found

AIRCRAFT WAS NOT GROUNDED: WHILE PERFORMING PS CHECK, EMERGENCY EXIT WALL LIGHTS 40WL, 41WL, AND 50WL INOP. T/S PER TSM 33-51-00-810-807A DUE TO INTERNAL FAULT ON FWD ESPU. MAINTENANCE REPLACED RELAY 8WL DIODE PACK 1158VD IAW ESPM 20-46-50 AND ESPM 20-44-23.

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