# SDR CALA2026092419772

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 22, 2026
- Submitted: September 24, 2026
- Operation: Air carrier
- Aircraft: [N34455](https://openairdocs.org/aircraft/N34455), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 41743
- Aircraft time: 43,932 hours, 16,283 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702030
- Condition: No Test
- 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/CALA2026092419772

## Discrepancy

OPS CHECK OF EMERGENCY LIGHTS,  LIGHT AT SEAT 34FED INOPERATIVE.   BATTERY TESTED INOPERATIVE IAW GMM 04-20-16.  BATTERY CHANGED BUT NO HELP , NEEDED TO CHANGE THE POWER SUPPLY. EMERGENCY LIGHT IS BACK TO NORMAL AFTER CHANGING THE POWER SUPPLY IAW AMM 33-51-06.

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