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 three underfloor cargo compartments. The forward hold is referred to as the forward cargo compartment. A net divides the aft hold into two cargo compartments. They are referred to as the aft cargo compartment and the bulk cargo compartment. The bulk cargo compartment has tiedown/attachment points for the bulk door nets and for the nets and straps which keep the bulk cargo in place.
** 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 three underfloor cargo compartments. The forward hold is referred to as the forward cargo compartment. A net divides the aft hold into two cargo compartments. They are referred to as the aft cargo compartment and the bulk cargo compartment. The bulk cargo compartment has tiedown/attachment points for the bulk door nets and for the nets and straps which keep the bulk cargo in place.
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 STA977(FR24A) and STA1483(FR34). A hydraulically operated cargo door which opens to the outside is installed on the right side of the aircraft between STA977(FR24A) and STA1163(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 STA2136(FR47) and STA3101(FR65). The aft cargo compartment is between STA2136(FR47) and STA2776(FR59). 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 STA2430(FR52A) and STA2616(FR56) and gives access to the aft cargo compartment.
The bulk cargo compartment is in zone 160 between STA2776(FR59) and STA3101(FR65). A divider net with a screen is installed at STA2776(FR59) and isolates the bulk cargo compartment from the aft cargo compartment. A manually operated door (bulk door) which opens to the inside, is installed on the lower right side of the aircraft. The bulk door is between STA2830(FR60) and STA2936(FR62) and gives access to the bulk cargo compartment.
The forward lower hold (forward cargo compartment) is in zone 130 between STA977(FR24A) and STA1483(FR34). A hydraulically operated cargo door which opens to the outside is installed on the right side of the aircraft between STA977(FR24A) and STA1163(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 STA2136(FR47) and STA3101(FR65). The aft cargo compartment is between STA2136(FR47) and STA2776(FR59). 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 STA2430(FR52A) and STA2616(FR56) and gives access to the aft cargo compartment.
The bulk cargo compartment is in zone 160 between STA2776(FR59) and STA3101(FR65). A divider net with a screen is installed at STA2776(FR59) and isolates the bulk cargo compartment from the aft cargo compartment. A manually operated door (bulk door) which opens to the inside, is installed on the lower right side of the aircraft. The bulk door is between STA2830(FR60) and STA2936(FR62) and gives access to the bulk cargo compartment.
B. Cargo Compartments
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 cargo compartment has three sections, the aft cargo compartment has four sections. This permits to load only a part of 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 cargo compartment has three sections, the aft cargo compartment has four sections. This permits to load only a part of each cargo compartment.
C. Bulk Loading
The forward and aft cargo compartments have items installed which permit to load bulk cargo.
These items 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, A1 and A2. The divider net A1 has a screen and is installed in the aft cargo compartment at FR59. The divider net A2 is installed in the forward cargo compartment at FR31. The divider nets divide the cargo compartments into sections.
The door nets are installed near the forward, aft and bulk cargo-compartment doors. 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.
These items 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, A1 and A2. The divider net A1 has a screen and is installed in the aft cargo compartment at FR59. The divider net A2 is installed in the forward cargo compartment at FR31. The divider nets divide the cargo compartments into sections.
The door nets are installed near the forward, aft and bulk cargo-compartment doors. 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
A divider net isolates the bulk cargo compartment from the aft cargo compartment.
The bulk cargo compartment is for passenger luggage and bulk cargo. The bulk cargo compartment has tie-down points and attachment 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 attachment points are for the installation of the divider and door nets. The door nets have stanchions which give the door nets a solid contour. The door nets prevent damage to the Bulk door and keep the door area clear of any luggage or cargo. The tie-down points and attachment points permit an easy and quick installation and removal of the straps and nets. The door nets must always be installed after loading/unloading.
A divider net isolates the bulk cargo compartment from the aft cargo compartment.
The bulk cargo compartment is for passenger luggage and bulk cargo. The bulk cargo compartment has tie-down points and attachment 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 attachment points are for the installation of the divider and door nets. The door nets have stanchions which give the door nets a solid contour. The door nets prevent damage to the Bulk door and keep the door area clear of any luggage or cargo. The tie-down points and attachment points permit an easy and quick installation and removal of the straps and nets. The door nets must always be installed after loading/unloading.
E. Linings and Floor Panels
The linings and floor panels in the FWD and AFT lower holds prevent damage to the aircraft structure. The linings are made of flame-resistant synthetic material. The floor panels are of sandwich construction and have non-slip surfaces.
The linings and floor panels in the FWD and AFT lower holds prevent damage to the aircraft structure. The linings are made of flame-resistant synthetic material. The floor panels are of sandwich construction and have non-slip surfaces.
F. Cargo Compartment Lighting
Each lower hold has a lighting system which 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 which 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.
G. Loading Area Lights
The loading area lights are spotlights installed in the ceiling panels at the FWD 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 loading area lights are spotlights installed in the ceiling panels at the FWD 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.
H. 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 or two-shot fire-extinguishing 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 release 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 or two-shot fire-extinguishing 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 release the extinguishing agent (Halon 1301) into the forward or aft lower hold at one time.
I. 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 collapsing lining panels which are 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.
The rapid-decompression safety system is installed to prevent damage to the aircraft structure if a sudden differential pressure occurs. It has collapsing lining panels which are 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 have to be in the closed position.
The rapid decompression system has:
- A rapid decompression panel
- A frame
- Fastener assemblies.
- Latches
- Springs
- Catches.
For the correct function of the rapid decompression system all the rapid decompression catches have to be in the closed position.
(2) Collapsing Lining Panels
At a specified pressure difference the fastener elements disengage and let the collapsing lining panels move to an open position. Thus lets the air flow between the cabin and the cargo compartment and then the pressure between these two areas becomes equal.
For the correct function of the collapsing lining panels all the fastener elements have to be in the closed position.
NOTE: Each collapsing lining panel is identified with the silver metallic washers.
At a specified pressure difference the fastener elements disengage and let the collapsing lining panels move to an open position. Thus lets the air flow between the cabin and the cargo compartment and then the pressure between these two areas becomes equal.
For the correct function of the collapsing lining panels all the fastener elements have to be in the closed position.