8-2-20. Before Taxi
Personnel injury or death may occur and
damage to airframe and rotor systems will
occur if the forward or aft rotor blade
droop stop(s) are missing or interposer(s)
on the aft rotor head are not engaged. After
engine run-up and before flight, or shut-
down if flight is not conducted, the flight
engineer will scan the ground in the imme-
diate area of the aircraft for evidence of
detached droop stops.
To prevent damage to the cargo hooks and
structure, do not ground taxi over rough or
uneven terrain with the forward and aft
cargo hooks installed.
* 1. SWIVEL switch As required.
* 2. AFCS switches As required.
* 3. Cyclic Trim Indicators CHECK GND posi-
O* 4. M-130 or AN/ALE-47 safety pin Remove
F* 5. Chocks Removed and secured.
F* 6. Ramp and cabin door As required.
F* 7. Crew, passengers, and mission equipment
Check ready for taxi.
O* 8. HUD Adjust brightness, mode, baromet-
ric altitude, pitch and roll as necessary.
F* 9. Taxi director and blade watchers Position
as required (fig. 8-2-1).
* 10. PARKING BRAKE As required.
Refer to Aircrew Training Manual (ATM).
* 1. Brakes Check pilots and copilots as re-
* 2. POWER STEERING Check as required.
8-2-22. Before Hover.
* 1. SWIVEL switch LOCK.
* 2. AFCS control panel Set as required:
The HIT/PAT check may be deferred to the
Health Indicator Test (HIT)/ 714A
Power Assurance Test (PAT) check Per-
form first flight of day.
Refer to TM 55-1520-240-23 Task 4.2.2 ( Perform Power
Assurance Test per the aircraft PAT Log instructions.
* 4. RRPM Set as required.