TM 55-1510-219-MTF
b.
Leak or restriction in pressure scavenge oil tubes.
c.
Defective preformed packing and plastic ring on oil filter
housing.
d.
Leakage in oil to fuel heat exchanger.
e.
Defective or cocked centrifugal breather carbon seal.
f.
Defective air seals.
g.
Preformed packing on accessory gearbox defective.
E11.
Failure of engine to decelerate.
a.
Fuel control unit malfunction.
b.
Disconnected or improperly adjusted linkage.
E12.
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.
d.
Fuel control unit contamination and/or corrosion.
E13.
Gas generator uncontrolled acceleration.
a.
Sheared or worn fuel control unit splined coupling or drive
spline.
b.
Defective fuel control unit.
c.
Fuel control unit contamination and/or corrosion.
E14.
Surge during acceleration.
a.
Defective compressor bleed valve.
b.
Defective fuel control unit.
c.
Compressor damaged.
E15.
Slow to accelerate.
3-20
