GROUND SERVICING
AIRPLANE
OPERATIONS
MANUAL
1-12-10
Page
2
Code
01 REVISION 39
AOM-145/1114
TOWING PREPARATION
The following precautions apply when towing the airplane:
− During the towing operations, a properly trained person must stay
in the cockpit to set the emergency/parking brake, if necessary.
CAUTION:
EFFICIENT COMMUNICATION BETWEEN THE TOWING
VEHICLE OPERATOR AND THE COCKPIT PERSON
MUST BE ESTABLISHED BEFORE THE AIRPLANE IS
TOWED.
− Turn on the anti-collision lights.
CAUTION:
MAKE SURE THAT THE AIRPLANE WINGTIPS AND
TAIL CAN BE SEEN CLEARLY.
− Close the main door (except for airplanes equipped with wheeled
main door).
− If it is not necessary to tow the airplane with the hydraulic systems
1 and 2 pressurized:
− Depressurize hydraulic systems 1 and 2.
− Make sure that the emergency/parking brake accumulator is
pressurized.
If it is suspected that emergency/parking brake has no
accumulator charge to supply power for an eventual
actuation, turn electric hydraulic pump #2 on for a few
seconds and then turn electric hydraulic pump off again.
NOTE: Turning on an electric hydraulic pump using batteries
only can discharge the batteries. The use of the APU
generator to supply electrical power is
recommended.
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