Service difficulty report · Pump · Cessna 401

Difficulty date
March 1, 2001
Submitted
March 28, 2001
Operation
Air carrier
Make and model
Cessna 401
Aircraft time
12,138 hours
Engine
Cont TSIO520E
Part
Pump
Part number
721526
Condition
Seized
Location
Heater
Stage of operation
CR
How discovered
O
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

(CAN) WHILE IN CRUISE, THE CABIN HEATER QUIT. THE HEATER FUEL PUMP DRIVE SHAFT WAS FOUND BROKEN OFF. THERE WA NO SIGN OF LUBRICATION ON THE DRIVE SHAFT BEARINGS. THE BEARINGS WERE VERY WORN AND DRY. THE PUMP WAS REPLACED.

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