Service difficulty report · Shaft · Doug DC6

Difficulty date
October 21, 2005
Submitted
November 8, 2005
Operation
Air carrier
Aircraft
N43872
Make and model
Doug DC6
Aircraft serial
533294
Aircraft time
37,216 hours
Engine
Pwa R2800CB3
Engine time
1,570 hours
Part
Shaft
Condition
Sheared
Location
Scavenge Pump
Part time
1,570 hours
Component
Scavenge Pump · Pwa
Component part number
212734
Stage of operation
TX
How discovered
O
Nature of condition
K, J
Precautionary procedure
E

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

What was found

NR 3 ENGINE SHUTDOWN ON GROUND UPON TAXI-IN DUE TO EXCESSIVE OIL LEAK. CAUSE OF EXCESSIVE OIL LEAKAGE WAS DUE TO A SHEARED LOWER SHAFT SECTION OF THE NOSE CASE OIL SCAVENGE PUMP. THE UPPER PORTION WAS STILL INTACT DISPLAYING GOOD PRESSURE AND GOOD BMEP. THE ENGINE WAS REPLACED DUE TO FRONT CAM FAILURE FOUND DURING INSPECTION.

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