TECHNICAL MANUAL
OPERATOR’S MANUAL
FOR
ARMY CH-47D
HELICOPTER
(EIC: RCD)
*This manual supersedes TM 55-1520-240-10, 30 April 1992,
including all changes.
DISTRIBUTION STATEMENT A: Approved for public
release; distribution is unlimited.
HEADQUARTERS, DEPARTMENT OF
THE ARMY
31 January 2003

TM 1-1520-240-10
Change 1 a
WARNING
Personnel performing operations, procedures, and
practices which are included or implied in this technical
manual shall observe the following warnings.
Disregard of these warnings and precautionary information
can cause serious injury or death.
WARNING
STARTING ENGINES
Coordinate all cockpit actions with ground observer.
Insure that wheels are chocked (if applicable), rotor
and blast areas are clear, and fire guard is posted.
WARNING
GROUND OPERATION
Engines will be started and operated only by authorized
personnel.
WARNING
ROTOR BLADES
Beware of moving rotor blades, particularly the
blades of the forward rotor system.
WARNING
HIGH VOLTAGE
All ground handling personnel must be informed of
high voltage hazards when making external cargo
hook–ups.
WARNING
FIRE EXTINGUISHER
Exposure to high concentrations of fire extinguishing
agents or decomposition products should be
avoided. The liquid should not contact the skin. It
may cause frostbite or low temperature burns.
WARNING
ARMAMENT
Loaded weapons or weapons being loaded or unloaded,
shall be pointed in a direction which offers
the least exposure to personnel or property in the
event of accidental firing. Personnel shall remain
clear of the hazardous area of all loaded weapons.
WARNING
VERTIGO
Turn the anti–collision lights off during flight
through clouds. This will eliminate light reflections
from the clouds, which could cause vertigo.
WARNING
CARBON MONOXIDE
When smoke, suspected carbon monoxide fumes, or
symptoms of anoxia exist, the crew should immediately
ventilate the aircraft.
WARNING
HANDLING FUEL AND OIL
Turbine fuels and lubricating oils contain additives
that are poisonous and readily absorbed through the
skin. Do not allow them to remain on skin longer than
necessary.
TM 1-1520-240-10
b Change 1
WARNING
ELECTROMAGNETIC INTERFERENCE (EMI)
No electrical/electronic devices of any sort, other
than those described in this manual or appropriate
airworthiness release and approved by USAATCOM,
are to be operated by crewmembers or passengers
during operation of this helicopter.
WARNING
RADIOACTIVE MATERIALS
Instrument dials on CH–47 series aircraft contain
radioactive materials. If an instrument is broken or
becomes unsealed, avoid personal contact with the
item. Use forceps or gloves made of rubber or polyethylene
to pick up contaminated material. Place the
material and the gloves in a plastic bag, seal the bag,
and dispose of it as radioactive waste in accordance
with AR 385-11 and TM 3-261. (Refer to TB 43-0108).
WARNING
NOISE LEVELS
Sound pressure levels in this aircraft during some
operating conditions exceed the Surgeon General’s
hearing conservation criteria, as defined in TB MED
251. Hearing protection devices, such as the aviator
helmet or ear plugs are required to be worn by all
personnel in and around the aircraft during its operation.
WARNING
HAZARDOUS CARGO
Items of cargo possessing dangerous physical
properties such as explosives, acids, flammables,
etc. must be handled with extreme caution and in
accordance with established regulations. Ref:
38–250.
WARNING
HF RADIO LIAISON FACILITY AN/ARC-220
The HF Radio Liaison Facility AN/ARC-220 in the ALE
mode sounds (transmits short tone bursts) and replies
to ALE calls automatically without operator action.
Anytime local flight directives forbid HF emissions,
such as ordinance loading or refeuling, or
when personnel are working near the aircraft, ensure
the radio set control function switch is set to SILENT,
STBY, or OFF.
WARNING
IN ALE MODE
The AN/ARC-220 sounds (transmit short bursts) and
replies to ALE calls automatically without operator
action. Anytime local flight directives forbid HF
emissions, such as during ordance loading or refueling,
or when personnel are working near the aircraft,
ensure the radio set control function switch is set to
silent, STBY, or OFF.
C3
TM 1-1520-240-10
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