TM 1–1520–238–T–1
Change 4
4–85
4–12 STAB – INTERACTIVE FD/LS CHECK
4–12
(ACY) (cont)
TASK
RESULT
NOTE
An advisory message AUTO STABILATOR
SYSTEM TEST IN PROGRESS indicates a
dynamic test has been initiated for 30 seconds
on each of the following stabilator systems: top
stabilator position actuator, bottom stabilator
position actuator, rate gyro1, rate gyro 2,
airspeed transducer 1, airspeed transducer 2,
stabilator control unit 1, and stabilator control
unit 2.
If NO–GOs appear on VDU,
stop FD/LS testing and
perform CORRECTIVE
ACTION.
When HOLD COLL AT FULL
UP–ACK VIA KBD appears
on VDU, go to next step.
m. Pull pilot collective
stick to the full up
stop position
n. On DEK, press and
release ENTER
SPACE key.
Once acknowledged, the
SCUs are tested to see if
both position actuators
indicate the full up position.
If NO–GOs appear on VDU,
stop FD/LS testing and
perform CORRECTIVE
ACTION.
When SLEW STAB TO UP
LIMIT THEN DEPRESS
RESET ACK VIA KBD
appears on VDU, go to next
step.
o. Next to pilot
collective stick, pulse
ND/NU switch on
stabilator manual
control to NU until
stabilator reaches its
full up position.
Observe the stabilator
position on the stabilator
position indicator. When the
stabilator has reached its full
up position, press the
stabilator RESET button on
the stabilator manual control.
