T-45C TS, ADV & IUT ENG-22
CNI System Malfunctions
b. Verify VOR and CRS are selected on HSI
c. Verify navigation control is set for crewstation you
are occupying
d. Verify same indications present in other cockpit
e. Verify with other aircraft, if available
f. Verify station operation with ATC
g. Loss of aural ident
h. BIT fails
3. Effects on flight safety
a. If undetected, VOR failure could cause you to leave
assigned airspace, with ensuing risk of midair
collision
b. Possible navigation errors
c. Reduced approach capabilities
F. Instrument landing system (ILS) glideslope failure
1.8.1.9.9.1
1. Indications
a. GLIDESLOPE advisory shown on all MFDs
b. GLIDESLOPE needle blanked on ADI and HUD
2. Verifications
a. Verify VOR/ILS receiver control panel settings
b. Verify ILS selected on HSI
c. Verify navigation control is set for crewstation you
are occupying.
d. Verify same indications present in other cockpit, if
possible
Original (9-98)
Page 22-13
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