Service difficulty report · Wire · Swrngn SA227AC

Difficulty date
September 16, 2011
Submitted
September 21, 2011
Operation
Air carrier
Aircraft
N428MA
Make and model
Swrngn SA227AC
Aircraft serial
AC646
Aircraft time
27,097 hours, 32,225 cycles
Engine
Garrtt TPE33111U
Engine time
17,960 hours, 17,584 cycles
Part
Wire
Condition
Shorted
Location
Rt Engine
Stage of operation
CR
How discovered
O
Nature of condition
N
Precautionary procedure
E

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

What was found

EN ROUTE TO IDA THE PILOT REPORTED THAT THE RIGHT ENGINE OIL TEMP WAS EXTREMELY HIGH READING AT THE RED LINE. THE PILOT PERFORMED A PRECAUTIONARY SHUT DOWN OF THE RIGHT ENGINE FOLLOWING THE EMERGENCY PROCEDURES CHECKLIST. THE PILOT DECLARED AN EMERGENCY AND LANDED AT IDA WITHOUT INCIDENT. MAINTENANCE INSPECTED THE RIGHT ENGINE AND FOUND THE OIL TEMP SENSOR WIRES SHORTING TO GROUND CAUSING A FALSE INDICATION OF HIGH OIL TEMP. THE OIL TEMP SENSOR WIRES WERE REPAIRED, THE OIL TEMP INDICATOR FUNCTIONED NORMALLY ON GROUND RUN UP.