# SDR DALA2017101807633

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 18, 2017
- Submitted: October 19, 2017
- Operation: Air carrier
- Aircraft: N667US
- Make and model: Boeing 747451
- Aircraft serial: 24222
- Aircraft time: 116,295 hours, 14,068 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: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2017101807633

## Discrepancy

EMERGENCY LIGHTS INOPERATIVE 4L, 51 ABC - 60ABC AISLE LIGHTS.   REMOVED AND REPLACED THE POWER SUPPLY IAW AMM 33- 51-04, OPS NORMAL. OK FOR SERVICE.

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