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78-11-00-000
TURBINE EXHAUST SYSTEM - INTRODUCTION
TURBINE EXHAUST SYSTEM - INTRODUCTION
EFFECTIVITY
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D633A101-GUN Feb 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
78-11-00-000
General
The turbine exhaust system uses a nozzle and a plug to control
the direction of the turbine exhaust gases.
Components
These are the turbine exhaust system components:
* Plug
* Nozzle.
Physical Description
The exhaust nozzle controls the outer edge of the turbine
exhaust flow. The nozzle attaches to the engine turbine case.
The exhaust plug controls the inner edge of the turbine exhaust
flow. The plug attaches to the engine turbine case.
The plug and the nozzle are made of nickel alloy.
TURBINE EXHAUST SYSTEM - GENERAL DESCRIPTION
EFFECTIVITY
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D633A101-GUN Oct 10/2002
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
78-11-00-001
TURBINE EXHAUST SYSTEM - GENERAL DESCRIPTION
TURBINE EXHAUST SYSTEM - GENERAL DESCRIPTION
EFFECTIVITY
GUN ALL 78-11-00
Page 5
D633A101-GUN Feb 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
78-11-00-001
Purpose
The exhaust nozzle assembly controls the outer edge of the
turbine exhaust flow. The aft part also controls the inner edge of
the fan air exhaust flow.
General
The exhaust nozzle assembly has these components:
* Inner sleeve
* Labyrinth seals
* Fairing
* Fences.
Bolts attach the inner sleeve to the turbine exhaust case.
The exhaust nozzle uses labyrinth seals to contain fire. Bolts
attach the seals to the inner sleeve.
The fairing helps smooth the inner edge of the fan air exhaust
flow. Rivets attach the fairing to the inner sleeve.
The nozzle fences control the airflow of the fan air exhaust over
the nozzle assembly.
Location
The exhaust nozzle assembly is on the aft end of the engine.
You open the fan cowls and thrust reverser halves to get
access.
Training Information Point
An alignment pin on the inner sleeve, near the 12:00 position,
helps you align the nozzle assembly during installation.
The leading edge flaps can extend and damage a T/R half when
the half is in the open (maintenance) position. Follow the AMM
procedures to prevent leading edge flaps operation.
T/R halves in the open position can also damage the leading
edge flaps if you deploy the T/R.
WARNING: DO THE DEACTIVATION PROCEDURE TO
PREVENT THE OPERATION OF THE THRUST
REVERSERS. THE ACCIDENTAL OPERATION OF
THE THRUST REVERSER CAN CAUSE INJURIES
TO PERSONS AND DAMAGE TO EQUIPMENT.
TURBINE EXHAUST SYSTEM - EXHAUST NOZZLE
EFFECTIVITY
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D633A101-GUN Oct 10/2002
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
78-11-00-002
TURBINE EXHAUST SYSTEM - EXHAUST NOZZLE
TURBINE EXHAUST SYSTEM - EXHAUST NOZZLE
EFFECTIVITY
GUN ALL 78-11-00
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D633A101-GUN Feb 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
78-11-00-002
Purpose
The exhaust plug assembly controls the inner edge of the
turbine exhaust flow.
The engine vent system uses a hole at the aft end of the exhaust
plug to vent to ambient air.
See the engine oil chapter for more information about the
engine vent system. (CHAPTER 79)
General
The exhaust plug assembly has these major components:
* Forward plug
* Aft plug.
Bolts attach the aft plug to the forward plug. Bolts attach the
forward plug to the engine turbine exhaust case.
Location
The exhaust plug is on the aft end of the engine turbine case.
You must do these tasks to get access to the exhaust plug bolts:
* Open the fan cowls to the full open position
* Open the thrust reverser cowls (halves)
* Remove the exhaust nozzle.
Training Information Point
You must remove the exhaust nozzle and the aft plug before
you remove the forward plug.
An alignment pin on the forward plug, near the 12:00 position,
helps you align the forward plug during installation.
The aft plug has a small notch near the 12:00 position. This
　
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