# SDR SIMA20260826001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 26, 2026
- Submitted: August 27, 2026
- Operation: Air carrier
- Aircraft: [N221NN](https://openairdocs.org/aircraft/N221NN), 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: 17000525
- Aircraft time: 27,100 hours, 18,483 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 34002210
- Condition: Inoperative
- Location: Zone 200
- 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/SIMA20260826001

## Discrepancy

EMERGENCY LIGHT WILL NOT ILLUMINATE WHEN SWITCHED TO ON FOUND COCKPIT EMERGECY LIGHT INOP. PER TROUBLE SHOOTING FOUND ELPU 1 INOP. R & R FWD RT EMERGENCY-LIGHT POWER UNIT 1 IAW AMM 33-50-01. OPERATIONAL CHECK OF OF POWER UNIT AND EMERGENCY LIGHTS GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.