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 TM 55-1510-218-MTF
E20. Low power output.
a. Defective indicating system.
b. Operating procedures incorrect.
c. Control linkages incorrectly adjusted or dis-
connected.
d. Propeller governor defective.
e. Leaks or restrictions in fuel control unit
pneumatic system.
f. Fuel nozzles restricted.
E21. High fuel flow at altitude.
a. Defective indicating system.
b. Defective compressor bleed valve.
E22. Maximum operating TGT has been exceeded.
a. Faulty instrumentation, thermocouples or
wiring.
b. Excessive accessory power being pulled due
to failure or overload.
c. Torquemeter system reading low.
E23. TGT limited (turbine temperature is as maxi-
mum limit before target torque is reached).
a. Defective instruments, thermocouple, or
wiring.
b. Improper operating procedure.
c. Dirty compressor.
d. Excessive accessory power being pulled due
to failure or overload.
e. Defective compressor bleed valve.
f. Damaged compressor.
g. Air leaks in engine flanges or fittings.
h. Hot section distress.
i. Torque meter system reading low.
3-21
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