Service difficulty report · Resistor · Piper PA31

Difficulty date
June 17, 1996
Submitted
March 26, 2000
Operation
Air carrier
Make and model
Piper PA31
Propeller
Hartzl HCC4YR2
Part
Resistor
Part number
R1
Condition
Burnt
Location
Auto Pilot
Part time
2,371 hours
Stage of operation
CR
Nature of condition
B
Precautionary procedure
B

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

What was found

(CAN) RESISTOR OVERHEATED, LIKELY DUE TO HIGH CURRENT LOAD OR SHORT CIRCUIT. CIRCUIT BREAKERS TRIPPED AUTOMATICALLY, BUT NOT BEFORE SIGNIFICANT OVERHEATING OF THE MOTOR DRIVE RESISTOR HAD TAKEN PLACE.

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