# SDR YENA2021040800216

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 4, 2021
- Submitted: April 9, 2021
- Operation: Air carrier
- Aircraft: [N535JB](https://openairdocs.org/aircraft/N535JB), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1739
- Aircraft time: 72,299 hours, 26,169 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 32145410
- Part serial: 4800
- Condition: Failed
- Location: 10wl
- Part time: 72,316 hours, 26,172 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2021040800216

## Discrepancy

DURING HEAVY MAINTENANCE, INOP EPSU 12WL; (REF. AERO N/R 2021-134069  W/O : 2021 70/1) R & R EPSU (12WL) IAW AMM 33-51-38-400-001-A AND PERFORMED OPERATIONAL TEST IAW AMM 33-51-00-710-001-A. TEST IS OK

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