# SDR 2007UALA01403

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 3, 2007
- Submitted: May 8, 2007
- Operation: Air carrier
- Aircraft: [N121UA](https://openairdocs.org/aircraft/N121UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 29167
- Aircraft time: 33,489 hours, 4,102 cycles
- Engine: Pwa PW4056
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 582233
- Condition: Faulty
- Location: Cabin
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA01403

## Discrepancy

EMERGENCY EXIT PATH LIGHTING FLASHES ON AND OFF ROW 54 AND AFT ON LEFT SIDE.  REPLACED BATTERY ASSY, OP CHECKS GOOD.

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