SDR AALA202204269494

Service difficulty report · Switch · Boeing 777223

Difficulty date: April 25, 2022
Submitted: April 26, 2022
Operation: Air carrier
Aircraft: N795AN
Make and model: Boeing 777223
Aircraft serial: 30257
Aircraft time: 80,660 hours, 10,525 cycles
System (JASC): 5210 · Passenger/Crew Doors
Part: Switch
Condition: Faulty
Location: Zone 800 - Doors
Stage of operation: IN
How discovered: C
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

AIRCRAFT IN BASE MAINTENANCE: WHILE PERFORMING EMERGENCY LIGHTS FUNCTIONAL TEST ON L3 DOOR, EMERGENCY POWER ASSIST SYSTEM (EPAS) BOTTLE DISCHARGED. REPLACED DOOR MODE SELECT SWITCH (AALA202204269494) PER AMM 52-11-28-000-801. REPLACED EPAS BATTERY PACK (AALA202204267203) PER AMM 52-11-20-400-805-002. REPLACED EPAS RESERVOIR (AALA202204269225) PER AMM 52-11-22-400-801. ACCOMPLISHED SATISFACTORY TEST PER AMM 52-11-20-700-803-002.