# SDR DALA2017092207053

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 22, 2017
- Submitted: September 25, 2017
- Operation: Air carrier
- Aircraft: N914DL
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 49545
- Aircraft time: 74,783 hours, 57,011 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Condition: Defective
- Location: Cabin
- 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/DALA2017092207053

## Discrepancy

DURING SERVICE CHK FOUND FWD OVERWING EMER EXIT SIGNS NOT LIGHTING UP. T/S AND FOUND BAD BATTERY CELL FOR FWD OVERWING EMERGENCY EXIT SIGNS IAW AMM 33-50 SYSTEM CHECKS 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.