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mounted on the inner wall upper bifurcation of the left and right
thrust reverser half. When the thrust reverser is closed and
latched, the bulb type fire seals are compressed against the
metal seal depressors on the strut, the engine upper fancase,
the structure around the engine core case. The fire seals help to
contain a engine core external component fire under the inner
wall. Some of the fire seals act also act as aerodynamic seals
which close off air gaps that can cause an operational economic
penalty.
The thermal insulation blankets are installed on brackets that
are installed on the inner surface of the inner wall. Thermal
insulation blankets are mounted on the inside surface of the fan
duct cowl and upper and lower bifurcation. These blankets are a
thermal insulation and fire barrier which is necessary to keep
the thrust reverser structurally serviceable and can decrease
the damage and repair costs from a duct burst or fire. The
thermal insulation prevents fire and engine operation heat
damage to the composite inner wall of the fan duct cowl.
Rubstrips are mounted on the circumference of the torque box
as a wear surface for the fan cowl panels and the translating
sleeves.
A total of six tension latches, at the bottom of the T/R, keep the
two halves together. The tension latches are mounted in the
latch beam on the left thrust reverser half. The hooks on the
tension latches engage latch bolts that are mounted in the latch
beam on the right thrust reverser half. There are two tension
latches that are mounted together at the forward end of the latch
beam. These two tension latches are necessary to keep the vblades
engaged in the v-grooves if a fan blade out or rejected
take off event occurs.
THRUST REVERSER - COMPONENT LOCATION
EFFECTIVITY
GUN ALL 78-31-00
Page 10
D633A101-GUN Feb 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
78-31-00-002
THRUST REVERSER - COMPONENT LOCATION
THRUST REVERSER - COMPONENT LOCATION
EFFECTIVITY
GUN ALL 78-31-00
Page 11
D633A101-GUN Feb 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
78-31-00-002
Purpose
The translating sleeves have two purposes when the T/Rs are
in the stow position:
* Protect the cascades and other internal components
* Control the outer edge of the fan air exhaust flow.
The translating sleeves have two purposes when the T/Rs are
in the deploy position:
* Expose the cascades
* Move the blocker doors into the fan air exhaust flow.
Location
The T/R sleeves are aft of the fan cowl. Sliders and tracks attach
the sleeve to the structure.
Physical Description
The T/R sleeve is a composite assembly with an inner and outer
skin.
The outer skin completes the aerodynamic contour of the
engine cowls and protects internal components.
The inner skin is the outer wall of the fan duct. Blocker doors
and acoustic panels make up a large part of the inner skin.
THRUST REVERSER - TRANSLATING SLEEVE
EFFECTIVITY
GUN ALL 78-31-00
Page 12
D633A101-GUN Feb 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
78-31-00-003
THRUST REVERSER - TRANSLATING SLEEVE
THRUST REVERSER - TRANSLATING SLEEVE
EFFECTIVITY
GUN ALL 78-31-00
Page 13
D633A101-GUN Feb 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
78-31-00-003
Purpose
The hydraulic actuators move the translating sleeves during T/
R deploy and stow operations.
The sync shafts make the hydraulic actuators extend and retract
at the same speed. The sync shafts also let you manually
operate the hydraulic actuators.
General
Each T/R half has three hydraulic actuators. The actuators
extend during a deploy operation and retract during a stow
operation. Each T/R half has one locking actuator and two nonlocking
actuators. The locking actuator must unlock for the other
hydraulic actuators on that same half to operate.
The locking actuators have a position feedback mechanism and
a manual unlock lever. The position mechanism operates a
linear variable differential transformer (LVDT). The manual
unlock lever lets you unlock the locking actuator for a manual
　
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