# SDR CALA2026100820235

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 6, 2026
- Submitted: October 8, 2026
- Operation: Air carrier
- Aircraft: [N229UA](https://openairdocs.org/aircraft/N229UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30557
- Aircraft time: 97,476 hours, 11,386 cycles
- Engine: Pwa PW4090
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- 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/CALA2026100820235

## Discrepancy

DURING EMERGENCY LIGHT INSPECTION FOUND DOOR 2L INSIDE AFT EXIT SIGN & DOOR 2L SLIDE LIGHT INOP. AFTER TROUBLESHOOTING FOUND FAULTY POWER SUPPLY. REPLACED DOOR 2L AFT EMERGENCY LIGHTS POWER SUPPLY IAW AMM TASK 33-51-06-960-803. NOW ALL EMERGENCY LIGHTS OPS CHECK GOOD.

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