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 TM 1-1510-223-MTF
d.
Manifold adapter or fuel nozzles restricted.
E20.
Low power output.
a.
Defective indicating system.
b.
Operating procedures incorrect.
c.
Control linkages incorrectly adjusted or disconnected.
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 at maximum 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.
Torquemeter system reading low.
3-19
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