General View of the Emergency Exit Hatches
Figure 001
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General View of the Emergency Exit Hatches
Figure 001A
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2. Component Location
__________________
**ON A/C 001-049, 051-099, 101-149, 201-299,
(Ref. Fig. 002, 003)
NOTE : The components of the emergency exit hatch Z843 are shown in the
____ table below. The components of the emergency exit hatches Z833, Z834 and Z844 are the same.
-------------------------------------------------------------------------------FIN I FUNCTIONAL DESIGNATION I PANELIZONEIACCESS I ATA I I I I DOOR I REF.
-------------------------------------------------------------------------------HATCH STRUCTURE 843 52-21-00 CABIN WINDOW 843 56-21-00 HATCH SEAL 843 52-21-11 INSULATION 843 52-21-13 HATCH LINING 843 25-23-47 SLIDE RELEASE MECHANISM 843 52-21-11 HATCH CONTROL HANDLE 843 52-21-11 LOCKING SHAFT UNIT 843 52-21-11 ROLLER GUIDE ASSEMBLIES 843 52-21-11
R **ON A/C 151-199, 401-499,
(Ref. Fig. 002A, 003A)
NOTE : The components of the emergency exit hatch Z834 are shown in the
____ table below. The components of the emergency exit hatch Z844 are the same.
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Location of the Components
Figure 002
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Location of the Components
Figure 002A
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Location of the Components
Figure 003
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Location of the Components
Figure 003A
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-------------------------------------------------------------------------------FIN I FUNCTIONAL DESIGNATION I PANELIZONEIACCESS I ATA I I I I DOOR I REF.
-------------------------------------------------------------------------------HATCH STRUCTURE 843 52-21-00 CABIN WINDOW 843 56-21-00 HATCH SEAL 843 52-21-11 INSULATION 843 52-21-13 HATCH LINING 843 25-23-47 SLIDE RELEASE MECHANISM 843 52-21-11 HATCH CONTROL HANDLE 843 52-21-11 LOCKING SHAFT UNIT 843 52-21-11 ROLLER GUIDE ASSEMBLIES 843 52-21-11
**ON A/C ALL
3. Description
___________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Each emergency exit hatch has a slide release mechanism with two operation modes. These are the NORMAL mode and the MAINTENANCE mode. During the NORMAL mode, the latch pin of the slide release mechanism is in the ARMED position (the latch pin is extended). When the emergency exit hatch is removed, the slide release mechanism operates the emergency escape slide automatically.
During the MAINTENANCE mode, the latch pin is in the DISARMED position (the latch pin is retracted). This prevents an operation of the emergency escape slide when the emergency exit hatch is removed during the maintenance procedure.
A proximity switch monitors the ARMED/DISARMED position of the latch pin. If the latch pin is retracted, the proximity switch sends a signal to the Electronic Centralized Aircraft Monitoring (ECAM) system.
To prevent accidental operation of the hatch locking mechanism, the release warning system gives two different warning signals. One signal is sent to the ECAM system and the other gives a visual warning in the cabin.
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4. Component Description
_____________________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
The primary components of each emergency exit hatch are:
-
the Hatch Structure,
-
the Hatch Seal,
-
the Lining and Insulation,
-
the Locking Mechanism,
-
the Slide Release Mechanism,
-
the Roller Guide Assemblies.
A.
Hatch Structure
The primary hatch structure is the beam framing, the inside framing and the chemically milled outer skin. These components are made of aluminum alloy sheet metal. They are riveted together to give the hatch its rigidity.
The beam framing is the formed horizontal beams and the formed vertical frame segments. A forged window frame is riveted in the center of the beam framing to install the cabin window into the hatch.
The inside framing is the formed vertical and horizontal edge beams and the formed edge curves. A retaining channel, made of formed sheet metal, is riveted on each horizontal edge beam to attach the hatch seal. A stop profile with an included retaining channel is riveted on each vertical edge beam. The profiles keep the hatch during the installation in line with the fuselage. They also hold the hatch against the cabin pressure when the aircraft is in flight.
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