Service difficulty report · Overheat Sensor · Swrngn SA227AC

Difficulty date
April 17, 2007
Submitted
January 3, 2008
Operation
Air carrier
Aircraft
N159MC
Make and model
Swrngn SA227AC
Aircraft serial
AC728B
Aircraft time
28,736 hours, 40,096 cycles
Engine
Garrtt TPE3311U
Part
Overheat Sensor
Part number
434422122
Condition
Defective
Location
Lt Nacelle
Stage of operation
CL
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

SHORTLY AFTER DEPARTURE, THE LT WING OVERHEAT LIGHT ILLUMINATED. FOLLOWING PROCEDURE, THE PILOT SHUTDOWN THE LT GENERATOR, LT BLEED AIR AND EXTENDED THE LANDING GEAR. THE LIGHT REMAINED ILLUMINATED SO THE LT ENGINE WAS SHUTDOWN AS A PRECAUTIONARY MEASURE AND THE PILOT RETURNED TO FSD AND MADE AN UNEVENTFUL LANDING. AN INVESTIGATION BY MAINTENANCE COULD NOT REVEAL A CAUSE OTHER THAN A POSSIBLE BRAKE HEATING UP DURING TAXI TO THE RUNWAY OR CABIN TEMP CONTROL SET TO MAX HEAT. MAINTENANCE COULD NOT DUPLICATE.