At end of turn, again level
aircraft by visual reference.
Attitude indicators - Check both
to assure proper indication.
Repeat above procedure using
a 10° angle of bank.
Set INS/GYRO switch to INS
and repeat steps (2) through
Directional gyros - Check for operation
and precession. The maximum allowable
precession in any 15-minute interval is 5°.
Turn and slip indicators - Check as
Airspeed - 143 ± 4 KIAS.
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.