(2)
Access Panels
5738L Engine No. 1 - Left Thrust Reverser
5739L Engine No. 1 - Right Thrust Reverser
5838R Engine No. 2 - Left Thrust Reverser
5839R Engine No. 2 - Right Thrust Reverser
D.
Examine the Blocker Doors
S 046-003-C00
WARNING: DO THE DEACTIVATION PROCEDURE TO PREVENT THE OPERATION OF THE
_______ THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(1)
Do the deactivation procedure for the thrust reverser for ground maintenance (AMM 78-31-00/201).
(2)
Open the fan cowl panels (AMM 71-11-02/201).
S 016-002-C00
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S 016-005-C00 WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO OPEN THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURY TO PERSONS OR DAMAGE TO THE EQUIPMENT COULD OCCUR.
(3) Open the thrust reverser (AMM 78-31-00/201).
S 846-012-C00 WARNING: DO NOT GO INTO THE FAN DUCT WHEN THE THRUST REVERSER IS IN THE
_______ OPEN POSITION. YOUR WEIGHT CAN CAUSE THE HOLD OPEN ROD FOR THE THRUST REVERSER TO BREAK. INJURY TO YOU AND DAMAGE TO THE EQUIPMENT CAN OCCUR.
CAUTION: DO NOT PULL ON THE BLOCKER DOOR DRAG LINKS OR USE THE DRAG
_______ LINKS FOR SUPPORT. YOU CAN DAMAGE THE DRAG LINKS.
(4)
Get access to the forward end of the fan duct with a ladder. S 226-006-C00
(5)
Examine each blocker door for too much hinge movement.
(a) Measure the clearance between the aft edge of the blocker door and the forward edge of the acoustic panel. 1) Make a record of this dimension, and the blocker door
location.
WARNING: BE CAREFUL WHEN YOU USE THE SCREWDRIVER TO MOVE THE
_______ BLOCKER DOOR AWAY FROM THE ACOUSTIC PANEL. IF YOU ARE NOT CAREFUL, THE SCREWDRIVER CAN CAUSE INJURY TO YOU AND DAMAGE THE BLOCKER DOOR OR THE ACOUSTIC PANEL.
(b) Carefully push a screwdriver between the edge of a closed blocker door and a acoustic panel.
NOTE: This will push the blocker door forward.
____
(c) Measure the clearance between the edge of the closed blocker door and the acoustic panel.
NOTE: Maximum permitted clearance is the axial clearance
____ in the spherical bearing of the hinge that is between the flanged bushings.
1) Make a record of this dimension.
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2) Remove the screwdriver and continue to do the hinge check.
WARNING: BE CAREFUL WHEN YOU USE THE SCREWDRIVER TO MOVE THE
_______ BLOCKER DOOR AWAY FROM THE ADJACENT PANEL. IF YOU ARE NOT CAREFUL, THE SCREWDRIVER CAN CAUSE INJURY TO YOU AND DAMAGE THE BLOCKER DOOR.
(d) Carefully push a screwdriver between the side edge of a closed blocker door and the adjacent panel.
NOTE: This will push the blocker door sideways.
____
(e) Measure the clearance between the blocker door and the panel
adjacent to it.
1) If the clearance is more than 0.16 inch,
make a record of this dimension, and the blocker door location. 2) Remove the screwdriver and continue to do the hinge check.
S 976-011-C00
(6) Do the calculations for the hinge movement.
(a) Subtract the first dimension from the second dimension to get the measurement of the movement in the blocker door bearings and hinge bolts. 1) If the clearance is more than 0.008 inch (0.2 mm),
make a record of this dimension, and the blocker door location.
S 416-007-C00
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