# SDR ASAA2026051766199

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 17, 2026
- Submitted: May 20, 2026
- Operation: Air carrier
- Aircraft: [N626AS](https://openairdocs.org/aircraft/N626AS), registered now
- Make and model: Boeing 737790
- Aircraft serial: 30793
- Aircraft time: 73,980 hours, 39,611 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: Inoperative
- Location: Zone 200
- 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/ASAA2026051766199

## Discrepancy

WHILE ACCOMPLISHING TC78233001 FOUND INTERIOR OVERHEAD EMERGENCY EXIT LIGHT INOP AND L1 EMERGENCY EXIT EXTERIOR LIGHT INOP. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACKS M1674 AND M1675 I/A/W IAI M/M 33-51-06EMERGENCY INTERIOR AND EXTERIOR LIGHTS OPS CHECK GOOD.

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