# SDR CALA2025070706239

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 4, 2025
- Submitted: July 7, 2025
- Operation: Air carrier
- Aircraft: [N77022](https://openairdocs.org/aircraft/N77022), registered now
- Make and model: Boeing 777224
- Aircraft serial: 39777
- Aircraft time: 68,257 hours, 6,839 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Switch
- Condition: Faulted
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025070706239

## Discrepancy

EMER LTS ON W/ SWITCH IN OFF POSITION OFF W/SWITCH IN ARMED ON ARRIVAL TO AIRCRAFT EMERGENCY LIGHTS FOUND OFF WITH THE FLIGHT DECK SWITCH ALSO IN THE OFF POSITION. EMERGENCY LIGHTS TEST CARRIED OUT IAW AMM 33-51-00-710-803 FROM FLIGHT DECK AND ALL CABIN LOCATIONS. ALL FOUND TO OPERATE CORRECTLY. MAT CHECKED AND NIL FAULTS FOUND. NIL STATUS OR EICAS MESSAGES DISPLAYED. OK FOR CONTINUED SERVICE.

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