ATA 21-50, MD-10 Pack Outlet Temp Sensor

#3 pack on a MD-10. When turned on, immediately drives to full hot and over-temps.

Compared pins "e" and "f" (both little) at pack temp controllers. These connect to the outlet temp sensor. Found #3 open while #1 & #2 read approx 1.7k ohms. Shot the sensor directly to eliminate wiring.... it was open.










MD-10-10 ATA 23-50 Pack Temp
Schematic 21-50-1