# SDR CALA2017042801192

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 28, 2017
- Submitted: April 29, 2017
- Operation: Air carrier
- Aircraft: [N663UA](https://openairdocs.org/aircraft/N663UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 27160
- Aircraft time: 98,680 hours, 15,511 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Faulty
- Location: Cabin
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2017042801192

## Discrepancy

1L LOWER EMER EXIT LIGHT IS FLICKERING ON AND OFF . EMER LIGHTS SWITCH IN THE ARMED POSITION. REMOVED AND REPLACED BATTERY POWER SUPPLY M1557 AWM 33-5-14 PG 2A OPS CHECK GOOD.

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