What was found
AIRCRAFT NOT GROUNDED - EPSU 15WL (EMERGENCY POWER SUPPLY UNIT) FAILED OPS CHECK. REMOVED AND REPLACED SWITCH 4WL PER TSM 33-51-00-810-871-A, AND AWM 33-51-01 OPS CHECK, OKAY FOR SERVICE.
- Difficulty date
- August 25, 2020
- Submitted
- August 28, 2020
- Operation
- Air carrier
- Aircraft
- N908AA
- Make and model
- Airbus A321231
- Aircraft serial
- 7775
- Aircraft time
- 9,905 hours, 3,716 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Switch
- Part number
- E0062B1A4AD0A
- Condition
- Defective
- Location
- Emergency Lights
- 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.