TM 55-1510-221-MTF
f.
Defective air seals.
E14. Failure of engine to decelerate.
a.
Fuel control unit
b.
Disconnected or improperly adjusted link-
age
E15. Gas generator overspeed.
a.
Defective turbine tachometer system.
b.
Sheared or worn fuel control unit splined
coupling or drive spline.
c.
Defective fuel control unit.
E16. Gas generator uncontrolled acceleration.
a.
Sheared or worn fuel control unit splined
coupling or drive spline.
b.
Defective fuel control unit.
E17. Surge during acceleration.
a.
Defective compressor bleed valve.
b.
Defective fuel control unit.
c.
Compressor damaged.
E18. Slow to accelerate.
a.
Possible leak or restriction in Py air bleed.
tube or P3 air delivery tube.
b.
P3 air filter needs replacing.
c.
Improper acceleration adjustment on fuel
control unit.
d.
Propeller governor out of adjustment.
e.
Defective fuel control unit.
f.
Defective propeller governor.
E19. Flame out.
a.
Fuel supply contaminated with ice, water, or
debris.
b.
Engine driven high pressure fuel pump
3-19
