TM 55-1510-215-MTF
A3. Engine slow to start or does not start.
a.
Low battery.
b.
Generator field grounding relay or generator field grounding
disconnect relay defective.
c.
High resistance starter circuit.
d.
Defective starter-generator.
e.
Turbine dragging.
A4. Excessive starting RPM.
a.
Accessory gearbox input shaft coupling not engaged.
b.
Accessory gear drives, bushings or compressor rear hub
splines defective.
A5. Engine fails to light up.
a.
Improper engine starting procedure.
b.
Ignition system.
(1) No power to ignition exciter.
(2)
Defective wiring or components.
c.
Fuel system.
(1) Debris or ice in fuel system.
(2) Air lock in fuel control unit
(3) Engine driven primary high pressure pump.
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