ATA 09 (B777 AMM - Part 2) Flashcards
(11 cards)
Before towing the airplane all engine cowls to be closed and latched is: (A, B1, B2)
a. mandatory.
b. not required.
c. optional.
A
When AC power is not supplied, an alternate way to supply electrical power is through the use of the main battery bus: (B2)
a. without any additional actions.
b. and the circuit breaker GND CREW HORN on the P310 panel must be opened
c. and no limitations on the loads or time applied.
A*
For airplane towing (A, B1, B2)
a- all engine cowls must be closed and latched
b- only engine thrust cowls must be closed and latched
c- engine cowls may be opened and hold open rods must be in safety position
A
For airplane towing due to maintenance action (A, B1, B2)
a- all landing gear downlock pins must be installed
b- only nose landing gear downlock pin must be installed because tow bar is connected to nose landing gear only
c- all landing gear downlock pins may not be installed if APU is operating
A
During towing airplane is able to turned (A, B1, B2)
a- 90 degrees maximum
b- 60 degrees maximum
c- 70 degrees maximum when torsion links are connected and more than 70 degrees if torsion links are disconnected
C
For towing airplane with APU inoperative (B1, B2)
a- towing is not allowed because hydraulic systems must be pressurized for brake action during towing
b- towing is allowed because batteries may be used for communication
c- towing allowed but we must make sure brake accumulator pressure is 2600 psi to 3100 psi prior towing
C
Before removing of tow lever lock pin (A, B1, B2)
a- we must disconnect tow bar
b- we make sure that nose wheels are in centering position
c- we must disconnect tow bar and make sure that nose wheels are in centering position
C
Mechanic who stays in cockpit for airplane towing (A, B1, B2)
a- he must be an approved mechanic
b- he must be older than 40 years
c- he is any mechanic who had B777 type qualification training
A, C
Airplane has 01 nose wheel flat (B1)
a- we can tow airplane by conventional tow bar but we need keep tow speed to minimum and prevent sharp turn
b- we must use towbarless vehicle only
c- we can not tow airplane
A*
We can tow airplane with (B1)
a- 01 main wheel removed only
b- 02 main wheels removed provided 01wheel removed per 01 main landing gear only
c- 01 nose wheel removed
A, B
Airplane has all 12 main wheels flat (B1)
a- we can not tow airplane
b- we can tow airplane with tow bar connected to nose landing gear
c- we can tow airplane by both main gears, limit nose gear steering to 35 degrees, keep tow speed to minimum and prevent sharp turn.
A
