What was found
AIRCRAFT IN BASE MAINTENANCE, EMERGENCY LIGHT BITE CHECK. FAULT: EPSU BATTERY AFT LT. REMOVED AND REPLACED LEFT AFT EPSU (EMERGENCY POWER SUPPLY UNIT) 13WL, PER AMM 33-51-38. OPERATIONAL CHECK GOOD.
- Difficulty date
- September 13, 2020
- Submitted
- September 15, 2020
- Operation
- Air carrier
- Aircraft
- N174US
- Make and model
- Airbus A321211
- Aircraft serial
- 1492
- Aircraft time
- 65,277 hours, 2,486 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- 32145410
- Part serial
- 1450
- Condition
- No Test
- Location
- Emergency Lights
- Part time
- 64,832 hours, 24,536 cycles
- 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.