2. LAND AS SO ON AS POSSI BLE.
3. EMER SHUTDOWN after landing.
If high DC amperage indication does not dissipate, pilot
should antic ipate electrical fire in flight.
9-35. HYDR AULIC SYSTEM MALFUNCTION.
9-36. H YDR AULIC POWE R FAILURE. Hydraulic
power failure will be evident when the force required
for control movement increases; a moderate feedback
in the cyclic and collective controls is felt and the HYD
PRESS caution light illu minates. Con tro l movements
will result in normal aircraft response in every respect.
In the event of hydraulic p ower failure:
1. Airspeed – Adjust as necessary to attain
the most comfortable level of control
movements.
2. HYD B O O ST SOL circuit breake r – Out;
check for restoration of hydraulic power.
If hydraulic power is not restored:
3. HYD BOOST SOL circuit breaker – In.
4. HYD BOOST switch – OFF.
Do not return the HYD BOOST switch to the
ON position for the remainder of the flight. This
prevents an y possibility of a surge in h yd raulic
pressure and the resulting loss of control.
5. LAND AS SOON AS PRACTICABLE at an
area that will permit a run-on landing.
9-37. LA NDING AND DITCHING.
9-38. LANDING IN TREES. A landing in trees
should be made when no other landing area is avail-
able. In addition to accomplishing engine malfunction
emergency procedures, select a landing area con-
taining the least number of trees of minimum height.
Decelerate to minimum forward speed at treetop level
and descend into the trees vertically. Apply all the
remaining collective, prior to the main rotor b lades
entering the trees.
9-39. DITCHING – POWER ON. If ditching be-
comes necessary, with power available accomplish an
approach to a hover above the water and:
1. Doors – Jettison at a hover.
2. Crew (except pilot) and passengers – Exit.
3. Hover a safe distance away from
personnel.
4. A
UTOROTATE. Apply all remaining
collective as the helicopter enters the
water. Maintain a level attitude as the
helicopter sinks and until it begins to roll,
then apply cyclic in direction of the roll.
5. Pilot – Exit when the main rotor stops.
9-40. DITCHING – POWER OFF. If an engine failure
occurs over water and ditching is imminent, accomplish
engine failure emergency procedures and proceed as
follows:
1. A
UTOROTATE. Decelerate to minimum
forward speed as the helicopter nears the
water. Apply all remaining collec tive as
the h e lico pter enters t he water. Maintain a
level attitude as the helicopter sinks and
until it be in gs to roll, then app ly cyclic in
the direction of the roll.
2. D
oors – Jettison.
3. Crew and passengers – Exit when the
main rotor stops.
9-41. FLIGHT CONTROL MALFUNC-
TIONS. Failure of components within the flight
control system may be indicated through varying
degrees of feedback, binding, resistance, or sloppi-
ness. These conditions should not be mistaken for
hydraulic power failure. In the event of a flight control
malfunc tion:
1. L
AND AS SOON AS POSSIBLE.
2. EMER SHUTDOWN after landing.
9-42. LIGHTNING STRIKE.
L
AND AS SOON AS POSSIBLE.
9-43. IN-FLIGHT WIRE STRIKE.
L
AND AS SOON AS POSSIBLE.
Change 14 9-11
TM 55-1520-228-10
To Next Page
Loading...