PW4000 SERIES ENGINES
777 AIRCRAFT MAINTENANCE MANUAL
THRUST REVERSER SYSTEM -T/R SLIDERS
EFFECTIVITY BEJ ALL 78-31-00
Page 27
D633W101-BEJ May 05/2003
THRUST REVERSER SYSTEM -TRACKS AND TRACK LINERS
Purpose
The thrust reverser tracks and track liners hold the main and auxiliary track sliders and permit the thrust reverser sleeve to move forward and aft.
Location
The main and auxiliary tracks are on the upper hinge beam and lower latch beam of each thrust reverser half.
Physical Description
Each track has a track liner that holds the main or auxiliary track slider. The track liners are steel and protect the aluminum tracks.
Training Information Point
You must remove the thrust reverser sleeve to do a complete inspection of the track liners. You must also remove the thrust reverser sleeve to replace the track liners.
WARNING: DO THE DEACTIVATION PROCEDURE TO PREVENT THE OPERATION OF THE THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONNEL AND DAMAGE TO EQUIPMENT
EFFECTIVITY BEJ ALL 78-31-00
Page 28
D633W101-BEJ May 05/2003
THRUST REVERSER SYSTEM -T/R TRACKS AND TRACK LINERS
EFFECTIVITY BEJ ALL 78-31-00
Page 29
D633W101-BEJ May 05/2003
PW4000 SERIES ENGINES
777 AIRCRAFT MAINTENANCE MANUAL
THIS PAGE IS INTENTIONALLY LEFT BLANK
78-31-00
Page 30 D633W101-BEJ May 05/2003
THRUST REVERSER SYSTEM -BLOCKER DOORS AND BLOCKER DOOR DRAG LINKS
Purpose
The thrust reverser blocker doors and the blocker door drag links make a blockage in the fan duct to change the direction of the fan air exhaust.
Location
The blocker doors connect to the forward end of the inner thrust reverser sleeve. The blocker door drag links connect the blocker doors to the fan duct inner wall.
Physical Description
Each thrust reverser sleeve has six honeycomb epoxy-graphite blocker doors. Each blocker door has a rubber bulb seal on the hinged end of the door.
There are two types of blocker doors in use. The current blocker door is a flat surface door with metal hinge fittings and drag link fittings attached to the door with fasteners. The fittings on the flat surface door can be removed to replace damaged hinge bearings and drag link bushings. The previous blocker door has molded-in flanges for the hinge bearings and drag link bearings and fittings.
The drag link fitting on the blocker door has a spring loaded link that gives vibration dampening to the blocker door in the closed and faired position when the thrust reverser sleeve is stowed.
EFFECTIVITY
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