# SDR ASAA2026013064043

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 2026
- Submitted: February 2, 2026
- Operation: Air carrier
- Aircraft: [N260AK](https://openairdocs.org/aircraft/N260AK), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36349
- Aircraft time: 34,467 hours, 11,065 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Condition: Faulted
- Location: Zone 200
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2026013064043

## Discrepancy

ROW 16 ABC EXIT SIGN COVER MISSING. GROUNDED - YES. RMVD AND REPLACED ROW 16 ABC EXIT LIGHT ASSY, DURING OPS CHK FOUND 16 ABC / 16 DEF EXIT LIGHTS BOTH INOP. RMVD AND REPLACED PWR SUPPLY FOR BOTH 16 ABC 16 DEF, OPS CHKS GOOD TEST / OPS CHKS GOOD REF: MM 33-51-01, MM 33-51-06 ALL C/B RESET (5) BATTERY PACK CAPACITY CHECK GOOD REF: MM 33-51-06.

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