# SDR CALA2023081802552

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 17, 2023
- Submitted: August 18, 2023
- Operation: Air carrier
- Aircraft: [N34137](https://openairdocs.org/aircraft/N34137), registered now
- Make and model: Boeing 757-200 SERIES
- Registry model: [Boeing 757-200 SERIES](https://openairdocs.org/model/boeing-757-200-series) (OpenAirDocs)
- Aircraft serial: 30229
- Aircraft time: 82,689 hours, 19,795 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 20121
- Part serial: 3261
- Condition: Defective
- Location: M10919
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023081802552

## Discrepancy

EMERGENCY LIGHTS (USING CONTROL SWITCHES) OPERATIONAL CHECK {MULT-33-3-0001} - SEAT AMOUNTED EEL, ARE INOP FROM SEAR ROW 7 ABC TO 20 ABC. TROUBLE SHOT TO POWER SUPPLY  M10919. REPLACED  M10919 IAW AMM 33-51-07/201. OPS. CHK''S. GOOD. PN OFF 2012-1, SN 3261. PARTS USED:  19-3351-3-0097,QTY :1

---
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.