DOC AIRBUS | AMM A320FCARGO COMPARTMENTS - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
In the lower deck of the aircraft, there are two lower holds (forward hold and aft hold) which are divided into cargo compartments. The forward hold is referred to as the forward cargo compartment No. 1. The aft hold is divided into the aft cargo compartment No. 4 and the bulk cargo compartment No. 5. A divider net isolates the cargo compartment No. 5 from the cargo compartment No. 4. The forward, aft and bulk cargo compartments have tie down/attachment points for the nets and straps which keep the bulk cargo in place. Two additional door nets are installed in the forward and aft cargo compartment.
** ON A/C NOT FOR ALL In the lower deck of the aircraft, there are two lower holds (forward hold and aft hold) which are divided into cargo compartments. The forward hold is referred to as the forward cargo compartment No. 1. The aft hold is divided into the aft cargo compartment No. 4 and the bulk cargo compartment No. 5. A divider net isolates the cargo compartment No. 5 from the cargo compartment No. 4. The forward, aft and bulk cargo compartments have tie down/attachment points for the nets and straps which keep the bulk cargo in place. Two additional door nets are installed in the forward and aft cargo compartment.
Forward and Aft Lower Holds2. System Description
A. Forward and Aft Lower Holds
The forward lower hold (forward cargo compartment) is in zone 130 between FR24A and FR34. A hydraulically operated cargo door which opens to the outside is installed on the lower right side of the aircraft between FR24A and FR28. The cargo door gives access to the forward cargo compartment.
The aft lower hold (aft cargo compartment and bulk cargo compartment) is in zones 150/160 between FR47/51 and FR65. The aft cargo compartment is between FR47/51 and FR59. The forward and aft cargo compartment have a restraint system which is made up of: divider nets, door nets and nets to secure the bulk cargo.
A divider net with a screen is installed at FR59 and divides the bulk cargo compartment from the aft cargo compartment. A hydraulically operated cargo compartment door (aft cargo door) which opens to the outside is installed on the lower right side of the aircraft. The aft cargo door is between FR55 and FR59 and gives access to the aft cargo compartment and the bulk cargo compartment.
The bulk cargo compartment is in zone 160 between FR59 and FR65.
The forward lower hold (forward cargo compartment) is in zone 130 between FR24A and FR34. A hydraulically operated cargo door which opens to the outside is installed on the lower right side of the aircraft between FR24A and FR28. The cargo door gives access to the forward cargo compartment.
The aft lower hold (aft cargo compartment and bulk cargo compartment) is in zones 150/160 between FR47/51 and FR65. The aft cargo compartment is between FR47/51 and FR59. The forward and aft cargo compartment have a restraint system which is made up of: divider nets, door nets and nets to secure the bulk cargo.
A divider net with a screen is installed at FR59 and divides the bulk cargo compartment from the aft cargo compartment. A hydraulically operated cargo compartment door (aft cargo door) which opens to the outside is installed on the lower right side of the aircraft. The aft cargo door is between FR55 and FR59 and gives access to the aft cargo compartment and the bulk cargo compartment.
The bulk cargo compartment is in zone 160 between FR59 and FR65.
B. Forward and Aft Cargo Compartment
The forward and aft cargo compartments have floor panels and linings. The linings keep smoke in the compartments and prevent damage to the lines and electrical wires. Each cargo compartment has items which make a restraint system. The restraint system permits the loading of loose baggage and bulk cargo in the forward and aft cargo compartments. The divider nets give each cargo compartment loading sections. The forward and the aft cargo compartment have four sections which permits bulk loading in each cargo compartment.
The forward and aft cargo compartments have floor panels and linings. The linings keep smoke in the compartments and prevent damage to the lines and electrical wires. Each cargo compartment has items which make a restraint system. The restraint system permits the loading of loose baggage and bulk cargo in the forward and aft cargo compartments. The divider nets give each cargo compartment loading sections. The forward and the aft cargo compartment have four sections which permits bulk loading in each cargo compartment.
C. Bulk Loading
The forward and aft cargo compartments have items installed which permit to load bulk cargo. The items which permit bulk loading are:
Each cargo compartment has tie down points, attachment points and multiple attachment points. The tie down points are for the attachment of the straps and/or nets which hold large or small items of bulk cargo. It is always necessary to use the nets and straps to safety all large or small items of bulk cargo. The tie down points are also for the attachment of the divider nets.
There are two types of divider nets, A2 and C . The divider net A2 is installed in the aft cargo compartment only at the FR54. The divider net C is installed in the forward cargo compartment at the FR28 and in the aft cargo compartment at the FR59. The divider nets divide the cargo compartments into sections.
The door nets type A and C are installed near the forward cargo-compartment door. The door nets type A1 and B are installed near the aft cargo-compartment door. The door nets prevent damage to the cargo compartment doors and keep the door areas clear of any bulk cargo. The door nets have stanchions which give them a strong contour. The door nets must always be installed after cargo is loaded or unloaded.
The multiple attachment points are for the attachment of the door nets to the cargo compartment floor. The attachment points are for the connection of the stanchions to the cargo compartment ceiling.
The tie down/attachment items permit an easy and quick removal and installation of the nets and straps. For the load/unload procedure, the nets are removed/installed as necessary.
The forward and aft cargo compartments have items installed which permit to load bulk cargo. The items which permit bulk loading are:
- Tie down/attachment points,
- Multiple attachment points,
- Divider nets/door nets,
- Load placards,
- Protection devices for the rapid decompression panels.
Each cargo compartment has tie down points, attachment points and multiple attachment points. The tie down points are for the attachment of the straps and/or nets which hold large or small items of bulk cargo. It is always necessary to use the nets and straps to safety all large or small items of bulk cargo. The tie down points are also for the attachment of the divider nets.
There are two types of divider nets, A2 and C . The divider net A2 is installed in the aft cargo compartment only at the FR54. The divider net C is installed in the forward cargo compartment at the FR28 and in the aft cargo compartment at the FR59. The divider nets divide the cargo compartments into sections.
The door nets type A and C are installed near the forward cargo-compartment door. The door nets type A1 and B are installed near the aft cargo-compartment door. The door nets prevent damage to the cargo compartment doors and keep the door areas clear of any bulk cargo. The door nets have stanchions which give them a strong contour. The door nets must always be installed after cargo is loaded or unloaded.
The multiple attachment points are for the attachment of the door nets to the cargo compartment floor. The attachment points are for the connection of the stanchions to the cargo compartment ceiling.
The tie down/attachment items permit an easy and quick removal and installation of the nets and straps. For the load/unload procedure, the nets are removed/installed as necessary.
D. Bulk Cargo Compartment
The bulk cargo compartment is for passenger luggage and bulk cargo. A divider net isolates the bulk cargo compartment (section 51) from the aft cargo compartment. The bulk cargo compartment has tie-down points. The tie-down points are for the nets and straps which keep bulk loads and luggage in place. It is always necessary to use the nets and straps to safety all large or small items of bulk cargo. The tie-down points permit an easy and quick installation and removal of the straps and nets.
The bulk cargo compartment is for passenger luggage and bulk cargo. A divider net isolates the bulk cargo compartment (section 51) from the aft cargo compartment. The bulk cargo compartment has tie-down points. The tie-down points are for the nets and straps which keep bulk loads and luggage in place. It is always necessary to use the nets and straps to safety all large or small items of bulk cargo. The tie-down points permit an easy and quick installation and removal of the straps and nets.
E. Linings
Ceiling panels, sidewall panels and partition walls make the cargo compartment. All the linings/panels give a sealed compartment.
Ceiling panels, sidewall panels and partition walls make the cargo compartment. All the linings/panels give a sealed compartment.
(1) Sidewall Panels
The sidewall panels are of a composite type structure and heat resistant. Air inlet ducts and outlet ducts are located in the sidewall panels. The panels permit access to the components installed behind the sidewalls.
The sidewall panels are of a composite type structure and heat resistant. Air inlet ducts and outlet ducts are located in the sidewall panels. The panels permit access to the components installed behind the sidewalls.
(2) Ceiling Panels
The ceiling panels are of a composite type structure and heat resistant. Cutouts for lamps and the smoke detectors are located in the ceiling panels. The ceiling panels also contain blow-in and blow-out panels.
The ceiling panels are of a composite type structure and heat resistant. Cutouts for lamps and the smoke detectors are located in the ceiling panels. The ceiling panels also contain blow-in and blow-out panels.
(3) Floor Panels
The floor panels are a sandwich construction type and have a non-slip surface finish.
The floor panels are a sandwich construction type and have a non-slip surface finish.
F. Rapid-Decompression Safety System
The rapid-decompression safety system is installed to prevent damage to the aircraft structure if a sudden differential pressure occurs. It has rapid decompression system which is installed in the forward, aft and bulk cargo compartments.
The rapid-decompression safety system is installed to prevent damage to the aircraft structure if a sudden differential pressure occurs. It has rapid decompression system which is installed in the forward, aft and bulk cargo compartments.
(1) Rapid Decompression System
The rapid decompression system has:
For the correct function of the rapid decompression system, all the rapid decompression catches must be in the closed position.
The rapid decompression system has:
- A decompression panel
- A frame
- Fastener assemblies.
- Latches
- Springs
- Catches.
For the correct function of the rapid decompression system, all the rapid decompression catches must be in the closed position.
G. Cargo Compartment Lighting
Each lower hold has a lighting system with fluorescent lamps which are installed in the center of the cargo compartment ceiling. Toggle switches installed at the doors of the cargo compartments control the lighting system.
Each lower hold has a lighting system with fluorescent lamps which are installed in the center of the cargo compartment ceiling. Toggle switches installed at the doors of the cargo compartments control the lighting system.
H. Loading Area Lights
The loading area lights are spotlights installed in the ceiling panels at the forward and aft cargo compartment doors. The intensity of the lights of the loading area permits you to read labels on loading equipment near a cargo compartment door. The toggle switch for the loading area lights is installed at the forward and aft door operation panel.
The loading area lights are spotlights installed in the ceiling panels at the forward and aft cargo compartment doors. The intensity of the lights of the loading area permits you to read labels on loading equipment near a cargo compartment door. The toggle switch for the loading area lights is installed at the forward and aft door operation panel.
I. Fire Protection
The forward and aft cargo compartment is classified as class C compartment and has a smoke detection system.
The forward and aft cargo compartment is classified as class C compartment and has a smoke detection system.
(1) Smoke Detection System
To prevent a warning system failure, a dual loop system is installed in the cargo compartment ceiling panel.
To prevent a warning system failure, a dual loop system is installed in the cargo compartment ceiling panel.
(2) Fire Extinguishing System
The fire extinguishing system is installed in combination with the smoke detection system. The fire extinguishing system is a single shot system. The two lower deck holds have one fire extinguishing system responsible for the forward lower hold and aft lower hold.
The fire extinguishing system can only discharge the extinguishing agent (Halon 1301) into the forward or aft lower hold at one time.
The fire extinguishing system is installed in combination with the smoke detection system. The fire extinguishing system is a single shot system. The two lower deck holds have one fire extinguishing system responsible for the forward lower hold and aft lower hold.
The fire extinguishing system can only discharge the extinguishing agent (Halon 1301) into the forward or aft lower hold at one time.
J. Fixed Partitions
The forward and aft cargo compartment each have two partition walls. In the forward cargo compartment, one is at FR24A and one at FR34. The aft cargo compartment has one at FR47/51 and one at FR65. They are of a composite type structure and heat resistant.
The partition walls are attached to the aircraft structure.
The forward and aft cargo compartment each have two partition walls. In the forward cargo compartment, one is at FR24A and one at FR34. The aft cargo compartment has one at FR47/51 and one at FR65. They are of a composite type structure and heat resistant.
The partition walls are attached to the aircraft structure.
K. Quick Connect System
All panels in the forward and aft lower holds are attached to the aircraft structure with quick connect fasteners. This feature allows quick and easy access to all parts behind the panels.
All panels in the forward and aft lower holds are attached to the aircraft structure with quick connect fasteners. This feature allows quick and easy access to all parts behind the panels.