TM 1-1510-224-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
CLIMB (CONT)
(d)
RADOME HEAT annunciator light -
Check illuminated within 5 minutes.
(e)
RADOME HOT annunciator light -
Check extinguished.
*20.
Waveguide
pressurization
system
-
Verify
that
the
WAVE
GUIDE
annunciator light is illuminated when N1
is above 80%.
*21.
Cabin and cockpit ventilation system -
Check the following items for flow of air,
binding controls, and the capability of
being shut off by appropriate control:
(a)
Eye-ball cold air vents.
(b)
Pilots and copilots air vents.
(c)
Windshield defroster ducts.
(d)
Main cabin air ducts.
*22.
Air conditioning and heating system -
Check as follows:
C48-53
(a)
CABIN AIR MODE SELECT switch -
MAN COOL or MAN HEAT.
(b)
CABIN AIR MANUAL TEMP control
switch - Hold to INCREASE position
for
one
minute.
Observe
an
increase in cabin temperature.
(c)
CABIN AIR MANUAL TEMP control
switch
-
Hold
to
DECREASE
position for one minute. Observe a
decrease in cabin temperature.
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