Service difficulty report · Connector · Piper PA31350

Difficulty date
December 2, 2010
Submitted
December 2, 2010
Operation
General aviation
Aircraft
N111UC
Make and model
Piper PA31350
Aircraft serial
317952190
Aircraft time
5,131 hours
Engine
Lyc TIO540*
Part
Connector
Part number
E303
Condition
Burned
Location
Heater
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

(QV0R) INSPECTED ACFT IAW SB NR 1004. FOUND HEATER WIRE BADLY BURNED AT MOLEX CONNECTOR E303 AS DESCRIBED IN THE "PURPOSE:" SECTION OF THE SB, HOWEVER WIRE WAS BLACKED FOR .7500" ON THE MALE CONNECTOR PIN AND DISCOLORED FOR A FURTHER .7500". A SMALL SECTION OF INSULATION HAD BURNED COMPLETELY OFF OF THE WIRE AS WELL. THE FEMALE PIN SHOWED NO BLACKENING AND WAS DISCOLORED FOR .7500". FEMALE CONNECTOR WAS FOUND TO HAVE SPREAD LEADING TO A LOOSE FIT WITH THE MALE. THE CONNECTOR BLOCK WAS BADLY BURNED HOWEVER THE DAMAGE WAS LIMITED TO THE AREA OF THE EFFECTED WIRE.

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