Service difficulty report · Pump · Piper PA31350

Difficulty date
August 20, 2015
Submitted
April 22, 2016
Operation
General aviation
Make and model
Piper PA31350
Aircraft time
14,324 hours
Engine
Lyc TIO540J2BD
Part
Pump
Part number
442CW6
Condition
Failed
Location
Right Vacuum
Stage of operation
CR
How discovered
9
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) THE RIGHT VACUUM PUMP HAS FAILED 4 TIMES IN ONE YEAR WITH THE AIRCRAFT FLYING ONLY 148 HOURS. TWO DIFFERENT AMOS HAVE TROUBLE SHOT THE SYSTEM AND THE PUMPS CONTINUE TO FAIL ON THE ONE SIDE ONLY.

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