# SDR YENA2023072500870

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 2023
- Submitted: July 25, 2023
- Operation: Air carrier
- Aircraft: [N784JB](https://openairdocs.org/aircraft/N784JB), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 04578
- Aircraft time: 46,819 hours, 16,248 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2023072500870

## Discrepancy

DURING HEAVY MAINTENANCE: EPSU TEST 10WL FAILED; REF STS WO 003043, NR0340 REMOVED AND REPLACED 10WL EPSU IAW AMM 33- 51-38-400-002-A. THE OPS CHECK GOOD.

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