# SDR 20000918SH004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 15, 2000
- Submitted: September 18, 2000
- Operation: Air carrier
- Aircraft: [N151](https://openairdocs.org/aircraft/N151), registered now
- Make and model: Doug DC-6B
- Registry model: [Doug DC-6B](https://openairdocs.org/model/douglas-dc-6b) (OpenAirDocs)
- Aircraft serial: 45496
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Switch
- Part number: 3270K3
- Condition: Shorted
- Location: Boost Pump
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/20000918SH004

## Discrepancy

NR 4 FUEL BOOST PUMP SWITCH SHORTED OUT WHEN PLACED IN THE LOW BOOST POSITION DURING ENGINE START.  SWITCH INTERNALLY SHORTED DIRECT TO GROUND.  SWITCH REPLACED.  SYSTEM THOROUGHLY INSPECTED.  OPS CHECKED NORMAL.  (X)

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