# SDR CALA2025050504438

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 2, 2025
- Submitted: May 5, 2025
- Operation: Air carrier
- Aircraft: [N75861](https://openairdocs.org/aircraft/N75861), registered now
- Make and model: Boeing 757-33N
- Registry model: [Boeing 757-33N](https://openairdocs.org/model/boeing-757-33n) (OpenAirDocs)
- Aircraft serial: 32585
- Aircraft time: 70,585 hours, 21,909 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Charger
- Condition: Faulted
- 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/CALA2025050504438

## Discrepancy

EMERGENCY LIGHTS - OPERATIONAL TEST WITH THE TEST SWITCH PROCEDURE - AFT EMERGENCY EXIT LOCATOR SIGN (M10255) INOP SWAPPED EMERGENCY BATTERY CHARGER M737 WITH M736 FOR TROUBLESHOOTING PURPOSES REF AMM 33-51-07. THIS CORRECTED THE AFT EMERGENCY EXIT LOCATOR SIGN. RE-INSTALLED BATTERY CHARGERS IN THERE ORIGONAL POSITIONS. OP CHECK IS GOOD FOR BATTERY CHARGER M737. WAITING ON PARTS TO CONTINUE. REMOVED AND REPLACED FUSE IN POWER SUPPLY REF AMM 33-51-07. OPS CHECK GOOD. SIGN LIGHTS UP AS INTENDED.

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