# SDR DALA2026022001227

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 19, 2026
- Submitted: February 20, 2026
- Operation: Air carrier
- Aircraft: [N723TW](https://openairdocs.org/aircraft/N723TW), registered now
- Make and model: Boeing 757231
- Aircraft serial: 29378
- Aircraft time: 91,285 hours, 22,893 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- 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/DALA2026022001227

## Discrepancy

SHIP 6817 FOUND DOORS 4L AND 4R EMERGENCY EXIT SIGN INOP. CORRECTIVE ACTION: REMOVED AND REPLACED BOTH BATTERIES AT M736 AND M737. ALSO REMOVED AND REPLACED CHARGER AT M737. REF B737 AMM 33-51. OPS CHK GOOD. (7990697)

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