# SDR FDEA201203120905

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2012
- Submitted: March 12, 2012
- Operation: Air carrier
- Aircraft: N491FE
- Make and model: Boeing 727227
- Aircraft serial: 21529
- Aircraft time: 42,073 hours, 28,758 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- 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/FDEA201203120905

## Discrepancy

EMERGENCY LIGHTS INOPERATIVE WHEN ESS POWER SWITCHED TO STANDBY MODE AND EMERGENCY EXIT LIGHT SWITCHING TO ARM.  PLACED SWITCH TO ON AND STILL LIGHTS DID NOT TURN ON .  REPLACED BATTERIES IN EXIT LIGHTS.  OPS CHECKED GOOD.

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