# SDR DL73E991540

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 9, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N373DL
- Make and model: Boeing 737247
- Aircraft serial: 23520
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Inoperative
- Location: Row 16-21
- Component: BPS73
- Stage of operation: TX
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL73E991540

## Discrepancy

WHITE EMERGENCY TRACK LIGHTS OUT ROW 16 TO ROW 21.  FOUND MID AND AFT BATTERY PACK AND PWR SUPPLY BAD.  REPLACED SAME, OPS NORMAL.

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