TM 55-6930-212-10
Table 7-2. Simulated Malfunction Details - Continued
Method of
Indications and effects on
Effects sensed by trainee
introduction
related systems as presented
if corrective action is
Malfunction
by instructor
to the instructor and trainee
not taken
Both transformer
358
All associated caution lights
Abrupt helicopter atti-
rectifiers
illuminate. Battery power is
tude change.Control be-
only dc power available. All
comes impaired.
dc associated equipment is
inoperative.
Battery system
359
BATT SYS MAL caution light
If another electrical
fail
illuminates. No dc power is
source is available, no
available from the battery.
effects are evident:
Battery bus may be disabled
otherwise, no dc power is
and associated equipment is
available.
inoperative.
AC bus tie relay
360
If either generator is failed
Loss of ac bus powered
fail
or turned off, disabled ac bus
equipment associated with
is not connected and all asso-
failed or turned off
ciated caution lights illuminate.
generator.
DC bus tie relay
361
If either transformer rectifier
All associated dc powered
fail
is inoperative, automatic closing
equipment on No. 1 or
of bus tie relay does not occur,
No. 2 busses is lost.
disabled dc busses are not con-
nected to operable transformer
rectifier. and all associated
caution lights illuminate.
PLT FLT instrument
362
Pilot flight instrument lights
Restricted cockpit/instru-
lights
are inoperative.
ment visibility.
CPLT FLT instrument
363
Copilot flight instrument lights
Restricted cockpit/instru-
lights
are inoperative.
ment visibility.
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