TM 55-1510-222-MTF
b. Defective horizontal situation indicator.
K27. VOR receiver inoperative.
a. No power to equipment.
b. Defective VOR control panel.
c. Defective VOR receiver.
K28.
With VOR receiver operating, course deviation
bars on course deviation indicators and radio
magnetic indicator needles do not deflect.
a. Defective VOR receiver.
b. Defective VOR control panel.
c. Defective relays.
d. Defective NAV select switch.
K29.
With VOR receiver operating, course deviation
bars on course deviation indicators do not deflect
(radio magnetic indicator needles operate proper-
ly).
a. Defective NAV select switch on instrument
panel.
b. Defective course deviation indicator switch-
ing relay.
K30. Radar inoperative.
a. System circuit breaker tripped.
b. Defective radar control-indicator.
c. Defective radar receiver-transmitter.
d. Defective antenna.
e. Defective wiring.
K31.
Radar antenna does not scan.
a. No power to radar antenna.
b. Defective radar antenna.
K32.
No display on radar control indicator.
a. Defective radar control-indicator.
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