ATA 54 Flashcards
What is purpose of engine strut fire seal (B1)
a. to make a seal between the side of the strut and the thrust reversers
b. to make a seal between the strut and the upper fan case
c. to make a seal between the strut and the fan cowls
What is purpose of strut firewall (B1)
a. to prevent damage to the bottom of the strut caused by too much heat
b. to prevent damage to the side of strut caused by too much heat
c. to prevent damage to the forward of strut caused by too much cool
Where is located the strut firewall (B1)
a. on the bottom of the strut
b. on the side of the strut
c. on the thrust reverser upper parts
What is correct to unblock the forward strut drain (B1)
a. by airflow applied to the drain outlet
b. by airflow applied to the drain inlet
c. by vacuum applied to the drain outlet
What can use to unblock the forward strut drain (B1)
a. airflow
b. piece of locking wire
c. pressurized water
d. a or b
How to perform the leak check of the strut aft upper spar (B1)
a. open access panel, apply water onto, examine the lower side for leak and repair as necessary
b. pressurize the area by nitrogen to find out leak and repair as necessary
c. pressurize the area by air to find out leak and repair as necessary
What is correct for the strut access doors (B1)
a. none of doors is pressure relief door
b. all doors are pressure relief doors
c. some doors are pressure relief doors, all the other are not pressure relief doors
C*
What is correct for the strut door installation (B1)
a. tighten the latch bolts with the hand tool only
b. make sure the gasket around door opening on the strut side skin in good condition
c. make sure the indicator slots in lock position
d. all above a, b and c
What is not correct for the strut access doors (B1)
a. all doors are behind the thrust reverser cowls so these doors are not required in the aerodynamic smoothness limits
b. all doors are in the air stream so these doors are required in the aerodynamic smoothness limits
c. a and b
What is correct for the strut aft fairing access doors (B1)
a. there are two doors
b. there are four doors, each door has three latches
c. there are four door, each door has two latches and two hinges
The strut aft fairing access doors are hold in opened position by meaning of (B1)
a. the locking pin on the upper hinge
b. the hold open rod
c. the hold open device on the lower hinge
Where are the hinges of the strut aft fairing door located (B1)
a. on the door fwd edge
b. on the door aft edge
c. on the door upper edge
How is the strut attached to the wing (B1)
a. by upper link and two side links
b. by diagonal brace
c. by two aft upper spar fittings
d. all above a, b and c
When remove the strut access door we make sure (B1)
a. use a hand tool only
b. loosen the latch bolts until the slot indicators turned approximately about 90 degrees counterclockwise from the lock position
c. use a power tool to safe working time
d. a and b
What is true for a preparation of a strut attaching pin assembly removal (B1)
a. make sure the related engine is supported properly if the engine is not removed
b. make sure the related strut is supported properly if the engine is removed
c. a or b
What is correct for the strut removal (B1)
a. remove the engine firstly
b. disconnect all strut systems
c. remove the engine with strut firstly than disconnect the strut from the engine
d. a and b
How to prepare the strut for maintenance action (B1)
a. ground the airplane
b. deactivate the leading edge slat in retract position
c. deactivate the thrust reversers in stow position
d. all above a, b and c
With the strut aft fairing doors opened we can access to (B1)
a. the engine (fuel low pressure) spar valve
b. the engine driven pump depressurization valve
c. components of left (or right) hydraulic system such filter modules, ACMP, reservoir,…
What is a correct indication that a strut pin assembly is unloaded for removing (B1)
a. that strut pin assembly able to be turned easily with a maximum torque of 125 pound-inches
b. the inner pin assembly dimensions checked in limits
c. the outer pin assembly dimensions checked in limits
What is an indicator slots position of the strut access door latch when it is in locked position (B1)
a. in position of red marking
b. indicator slot is approximately perpendicular to the edge (of the door) nearest to the latch bolt
c. when latch bolt tightened with specified torque value
