TM 1-1520-238-10
9-16 Change 9
9.10.7 Aborting Engine Start.
WARNING
Aborted engine starts may cause
fuel to collect in the engine nacelle. Sub-
sequent engine starts may be attempted
only after the nacelle door/work platform
is opened and the nacelle inspected for
fuel. If during the initial start an abnormal
TGT rise was evident, or fuel is evident in
the nacelle, the ignition system shall be
checked IAW standard maintenance pro-
cedures.
CAUTION
Abort Start for any of the following rea-
sons:
If it becomes apparent that TGT will
exceed 852C before NG idle speed
(63% or more) is attained.
If TGT does not increase within 45 sec-
onds after moving PWR lever to IDLE.
If no Np within 45 seconds after mov-
ing PWR lever to IDLE unless rotor is
locked.
If positive oil pressure indication does
not occur within 45 seconds after
moving PWR lever to IDLE.
ENG START light extinguishes prior to
52% NG.
Abort start procedures are as follows:
1. PWR lever – OFF.
2. ENG START switch – IGN OVRD for 30 sec-
onds or until TGT is below 540 C.
9.11 ELECTRICAL SYSTEM FAILURES.
CAUTION
In the event any circuit breaker opens for
unknown reasons, do not attempt to re-
set the breaker more than one time. Re-
peated tripping of a circuit breaker is an
indication of a possible problem with
equipment or electrical wiring. Multiple
attempts to reset the circuit breaker may
result in equipment damage and/or an
electrical fire.
NOTE
If generator fails in flight do not place
generator switch of failed generator in
test position.
During an electrical system malfunction
and operating on EMERG BATT power,
the HSI/RMI will not provide adequate in-
dications to the station.
9.11.1 GEN 1 and GEN 2 Caution Light On.
NOTE
In the event both generators are lost, turn
off all unnecessary equipment on the
emergency bus to conserve battery pow-
er. Battery power, assuming a 90%
charge, is normally sufficient for 12 min-
utes emergency bus operation. When the
battery heater is inoperative/discon-
nected and operating at temperatures
below –30 C (–22 F), power may only
be available for one minute of emergency
operation.
Selectable stores jettison will not function
in the event of a dual generator failure.
1. GEN switches 1 and 2 – OFF/RESET – GEN.
If power is not restored:
2. GEN switches – OFF.
3. LAND AS SOON AS PRACTICABLE.
