Service difficulty report · Switch · Doug DC6B

Difficulty date
February 15, 2000
Submitted
April 7, 2000
Operation
Air carrier
Aircraft
N151
Make and model
Doug DC6B
Aircraft serial
45496
Part
Switch
Part number
3270K3
Condition
Failed
Location
Boost Pump
Stage of operation
NR
How discovered
V
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

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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