# SDR 98UAL900139

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 6, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N174UA
- Make and model: Boeing 747422
- Aircraft serial: 24381
- Engine: Pwa PW4056
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 582233
- Condition: Inoperative
- Location: Cabin
- Stage of operation: NR
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98UAL900139

## Discrepancy

EMERGENCY EXIT LIGHTS INTERMITTENT ROWS 51 TO 59 LEFT HAND SIDE E-ZONE.  *S/D*  DEFECTIVE BATTERY PACK WAS REMOVED AND REPLACED.

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