# SDR USAASB02019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 24, 2002
- Submitted: February 27, 2002
- Operation: Air carrier
- Aircraft: N437US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24559
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Fuse
- Part number: 210310005
- Condition: Failed
- Location: Power Supply
- 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/USAASB02019

## Discrepancy

TPA - DURING OVERNIGHT CHECK, MAINTENANCE FOUND THE AFT EMERGENCY LIGHT AT SEAT ROWS 24 AND 25 INOPERATIVE.  MAINTENANCE FOUND THE 5 AMP FUSE BLOWN IN THE M1197 BATTERY POWER SUPPLY.  REMOVED AND REPLACED FUSE.  OPS CHECK GOOD.  (M)

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