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TURBINE EXHAUST SYSTEM -TURBINE EXHAUST PLUG
Training Information Point
You must remove the aft turbine exhaust plug to get access to the T1 flange.
The aft turbine exhaust plug weighs approximately 32 pounds
(14.5 kg) and the forward turbine exhaust plug weighs approximately 50 pounds (22.7 kg). They require special GSE for removal and installation.
The forward and aft plugs must be replaced and repaired as a matched set. If the forward and aft plugs are not a matched set, it is possible they will not fit together correctly and you can not complete the installation.
The self-locking feature of the nut plates in the forward plug can become worn with repeated removals. You must check the minimum run-on torque when you install the bolts for the aft plug. If the nut plates are worn, the bolts that attach the aft plug can back-out and the aft plug could separate from the forward plug.
Do not apply chlorinated solvents or cleaners to the titanium alloy; this can damage the metal.
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
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TURBINE EXHAUST SYSTEM -TURBINE EXHAUST PLUG
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PW4000 SERIES ENGINES
777 AIRCRAFT MAINTENANCE MANUAL
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D633W101-BEJ Sep 05/2002
BOEING PROPRIETARY -Copyright # -Unpublished Work -See title page for details.
THRUST REVERSER SYSTEM -INTRODUCTION
Purpose
The thrust reverser (T/R) system controls the direction of the fan air exhaust to make forward or reverse thrust.
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PW4000 SERIES ENGINES
777 AIRCRAFT MAINTENANCE MANUAL
THRUST REVERSER SYSTEM -INTRODUCTION
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THRUST REVERSER SYSTEM -GENERAL DESCRIPTION
General
The T/R system controls the direction of the fan air exhaust. It makes forward thrust or reverse thrust.
Physical Description
The T/R system uses left and right T/R halves that attach to the engine strut. Each T/R half has these parts:
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