# SDR JJBA20260720010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 14, 2026
- Submitted: July 20, 2026
- Operation: Air carrier
- Aircraft: [N23139](https://openairdocs.org/aircraft/N23139), registered now
- Make and model: Emb EMB-145XR
- Registry model: [EMB EMB-145XR](https://openairdocs.org/model/embraer-emb-145xr) (OpenAirDocs)
- Aircraft serial: 145731
- Aircraft time: 49,752 hours, 32,446 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 20131ASMI
- Part serial: 18467
- Condition: Inoperative
- Location: Zone 200
- Part time: 3,491 hours, 3,373 cycles
- 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/JJBA20260720010

## Discrepancy

MULTIPLE INTERIOR EMERGENCY LIGHTS INOPERATIVE (SERVICE DOOR EXIT IDENTIFIER SIGN, EXIT MARKING SIGN ABOVE FA SEAT, EMERGENCY ROW AFT EXIT LOCATING SIGN, MOST AFT AISLE EMERGENCY LIGHT). PERFORMED OPS CHECK. FOUND SERVICE DOOR EXIT IDENT SIGN, AND EXIT SIGN ABOVE FA'S SEAT TO WORK. OPS CHECK SAT. FOUND MOST AFT CEILING EMERGENCY LIGHT AND SERVICE DOOR IDENTIFIER LIGHT INOPERATIVE. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY NR 4. REMOVED AND REPALCED INVERTER NR 2 AND IDENTIFIER LIGHT. OPS CHECK SAT.

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