# SDR DALA102466306

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 29, 2010
- Submitted: February 1, 2010
- Operation: Air carrier
- Aircraft: N666US
- Make and model: Boeing 747451
- Aircraft serial: 23821
- Aircraft time: 86,740 hours, 10,864 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Inoperative
- Location: Emergency Lights
- 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/DALA102466306

## Discrepancy

DURING LINE CHECK FOUND EMERGENCY PATH LIGHTS AT ZONE C SEATS 31C TO 43C LT WOULD NOT ILLUMINATE WHEN TESTED.  REPLACED POWER SUPPLY.

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