- Difficulty date
- August 5, 2022
- Submitted
- August 5, 2022
- Operation
- Air carrier
- Make and model
- Airbus A320214
- Aircraft serial
- 5067
- Aircraft time
- 33,671 hours, 22,730 cycles
- Part
- Epsu
- Part number
- 321431
- Part serial
- 876096
- Condition
- None
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- P
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CA REPORTS AFT EMERGENCY LIGHTS STAY ON W/ SWITCH IN ARMED POSITION. / ACCOMPLISHED EPSU BITE TEST IAW AMM 33-51-00-710-001, TEST FAULTED SWITCH 4 WL, R + R SWITCH 4WL IAW ESPM 20-30-00, OPS CHECK FAILED FAULTED 11WL BAT AND 13WL BAT. R + R EPSU BATTERIES 11WL + 13WL IAW AMM 33-51-38. OPS CHECK SATISFACTORY. ACCOMPLISHED EPSU BITE CHECK IAW AMM 33-51-00-710-001 W/ NO FAULTS."