# SDR CALA2025041703925

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2025
- Submitted: April 17, 2025
- Operation: Air carrier
- Aircraft: [N662UA](https://openairdocs.org/aircraft/N662UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 27159
- Aircraft time: 123,095 hours, 18,751 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Light
- Condition: Malfunctioned
- 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/CALA2025041703925

## Discrepancy

IN REFERENCE WITH LOGPAGE#4512799 PERFORMED SYSTEM TEST OF THE EMERGENCY LIGHTS IRW AMM 33-51-00-705-029-001. EMERGENCY LIGHTS FAILED TO STAY ON DURING THE 1 MINUTE PERIOD REQUIREMENT. LEFT SIDE OF THE AC EMERGENCY LIGHTS TURNED OFF WITHIN 10-20 SECONDS WITH EMERGENCY SWITCH IN THE ON POSITION FOLLOWING THE RIGHT SIDE OF THE AC. FURTHER TROUBLESHOOTING NEEDED. PERFORMED EMERGENCY LIGHT SYSTEM TEST IAW AMM 33-51-00-705-029-001 AND OPERATIONAL TEST IAW AMM 33-51-00-715-001-001. EMERGENCY SYSTEM OPS CHECK GOOD. COULD NOT DUPLICATE FAULT. OBSERVED LIGHTS COME ON AND OFF WITHIN THE TIME SPECIFIED.

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