# SDR CALA2026012613267

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 26, 2026
- Submitted: January 27, 2026
- Operation: Air carrier
- Aircraft: [N17311](https://openairdocs.org/aircraft/N17311), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 67567
- Aircraft time: 9,806 hours, 3,328 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- 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/CALA2026012613267

## Discrepancy

DURING SERVICE CHECK TASK 42-3350-1-0001 FOUND EMERGENCY FLOOR PROXIMITY LIGHTS SEATS ROW 1 TO ROW 4 INOP AND EXTERIOR RH SLIDE LIGHT INOP. ACCOMPLISHED  FIM 33-51 TASK 815 FOUND EMERGENCY POWER SUPPLY (M02816) INOP. SWAPPED EMERGENCY POWER SUPPLY ( M02816) WITH EMERGENCY POWER SUPPLY ( M1695) AFTER SWAP BOTH RH INTERIOR OVERWING EXIT SIGN DOES NOT COME ON . PART REQUIRED TO BE REPLACE IS THE POWER SUPPLY (M1695)  AND BATTERY PACK D717-01-100 LOCATED ON RH SIDE NEXT TO OVERWING EXIT .  REPLACED EMERGENCY POWER SUPPLY AND BATTERY ASSY PER 33-51-13 ALL LIGHTS ARE OPERATIONAL AT THIS TIME.

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