# SDR 20000907SH020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 15, 2000
- Submitted: September 7, 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): [2822 · Fuel Boost Pump](https://openairdocs.org/jasc/2822)
- Part: Switch
- Part number: 3270K3
- Condition: Shorted
- Location: Cockpit
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/20000907SH020

## 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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