TM 55-1510-215-MTF
E28. Fluctuating ITT.
a.
Faulty instrumentation system.
b.
Airframe resonance affecting control lever.
c.
Defective power turbine governor.
d.
Defective engine driven high pressure fuel pump shaft seal.
e.
Defective or out of adjustment propeller overspeed governor.
f.
Defective propeller primary governor.
g.
Sticking beta mechanism.
E29. Fluctuating gas generator speed.
a.
Faulty instrumentation system.
b.
Airframe resonance affecting control lever.
c.
Defective power turbine governor.
d.
Defective engine driven primary high pressure fuel pump
shaft seal.
e.
Defective or out of adjustment propeller overspeed governor.
f.
Defective propeller primary governor.
g.
Sticking beta mechanism.
E30. Fluctuating torque and propeller RPM.
a.
Defective or out of adjustment propeller overspeed governor.
b.
Defective propeller primary governor.
c.
Sticking beta mechanism.
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