T-45C TS, ADV & IUT ENG-27/ENG-28
Engineering Review
*
ASR/PAR approach will be impossible
*
Must rely on visual communications
*
Must maintain VFR conditions if
possible
2.
TACAN azimuth failure
Sg 12, fr 66
Indications -- TACAN
a.
Indications
Azimuth Failure
(1) Bearing and time-to-go blanked in TACAN
data block, bearing pointer, course line,
TACAN symbol, blanked on HSI display
NOTE: Counterclockwise rotation of the
TACAN bearing pointer is normal during
periods of "break lock".
(2) Course steering arrow and time-to-go
blanked on HUD
b.
Verifications
(1) Verify TACAN receiver control panel switch
settings
(2) Verify TCN and CRS are Selected on HSI
(3) Verify navigation control is set for
crewstation you are occupying
(4) Verify same indications present in other
cockpit, if possible
(5) Verify position with other waypoint
navigation source or other aircraft, if
possible
(6) BIT fails
(7) Check more than one TACAN station
(8) Loss of aural ident
(9) Verify the Morse identifier for your station
(9-98) Original
Page 27-131
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