TM 55-4920-401-13&P
C A U T I O N
Both the heater probe and heater
probe cable length are extremely crit-
ical. Therefore, never check an air-
craft engine without first deter-
mining that the probes and probe
cable lengths are all identical and cor-
rect for the particular thermocouple.
Combining heater probes of different
part numbers and heater probes with
Change 4
2-2.1/(2-2.2 blank)
