# SDR YENA2022050500445

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 2022
- Submitted: May 5, 2022
- Operation: Air carrier
- Aircraft: [N190JB](https://openairdocs.org/aircraft/N190JB), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 011
- Aircraft time: 42,755 hours, 27,528 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: None
- Part number: 34002210
- Part serial: 002229
- Condition: Failed
- Location: Emer-Batt-Aft-Rh
- Part time: 40,954 hours, 26,239 cycles
- 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/YENA2022050500445

## Discrepancy

DURING HEAVY MAINTENANCE: ELPU 4 FAILED ON OPERATIONAL CHECK; REF AE NR 2022-196902, WO 2022-85/1.REMOVED AND REPLACED ALPU4 IAW AMM 33-50-01-000-801 & 33-50-01-400-801-A. OPS CHECKS ARE GOOD. WORK ACCOMPLISHED BY 8609817, RII BY 8655408.

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