Service difficulty report · Pump · Bell 206B

Difficulty date
June 27, 2000
Submitted
August 4, 2000
Operation
General aviation
Make and model
Bell 206B
Aircraft time
15,407 hours
Engine
Allsn 250C20
Part
Pump
Part number
206076022005
Condition
Contaminated
Location
Hyd Pump & Resrv
Part time
12,147 hours
Component
Hyd Pump & Resrv
Stage of operation
TX
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

(CAN) AFTER A DAYS FLYING, IT WAS DISCOVERED THAT THE HYDRAULIC FILTER BYPASS BUTTON HAD POPPED. THE BUTTON WAS DEPRESSED, AIRCRAFT RUN UP, BUTTON POPPED AGAIN. CONTAMINATES WERE FOUND IN THE FILTER. ALL HYDRAULIC LINES, SERVOS WERE FLUSHED, A NEW FILTER INSTALLED. THE AIRCRAFT WAS RUN AGAIN FOR 10 MINUTES, FEEDBACK WAS DISCOVERED IN THE CONTROLS. THE FILTER HAD MORE CONTAMINATES, CONTAMINATES WERE ALSO FOUND IN THE RESERVOIR. THE PUMP AND RESERVOIR ASSEMBLY WERE REPLACED, AS WELL AS A SERVO. CONTAMINATES AND FEEDBACK NO LONGER EXIST.

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