TM 55-1510-215-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
(5)
At end of turn, again level
aircraft by visual reference.
(6)
Attitude indicators - Check both
to assure proper indication.
(7)
Repeat above procedure using
a 10° angle of bank.
(8)
Set INS/GYRO switch to INS
and repeat steps (2) through
(7).
*3.
Directional gyros - Check for operation
and precession. The maximum allowable
precession in any 15-minute interval is 5°.
*4.
Turn and slip indicators - Check as
B5
follows:
a.
Airspeed - 143 ± 4 KIAS.
b.
Both left and right-timed turns shall
be accomplished. With turn indicator
deflected one needle width (two-
minute turn) aircraft should turn 180°
± 5° in 60 seconds.
2-41
