DOC AIRBUS | AMM A320FACCESSORY COMPARTMENTS - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The accessory compartments are located on the inner or on the outer areas of the pressurized fuselage. The avionics compartments are in the pressurized area below the cockpit (above the nose landing-gear well). They are identified as the FWD, the lateral and the AFT avionics compartments.
The compartments have:
Equipment compartments are located in the rear of the aircraft, between FR65 and FR80, in the areas of Zones 171/172, 311/312 and 313/314.
** ON A/C NOT FOR ALL The accessory compartments are located on the inner or on the outer areas of the pressurized fuselage. The avionics compartments are in the pressurized area below the cockpit (above the nose landing-gear well). They are identified as the FWD, the lateral and the AFT avionics compartments.
Accessory Compartments - LocationsThe compartments have:
- heat and sound insulation,
- maintenance lighting,
- air-cooled racks for the electrical and electronic equipment and their related units.
Equipment compartments are located in the rear of the aircraft, between FR65 and FR80, in the areas of Zones 171/172, 311/312 and 313/314.
2. Component Location
A. Avionics Compartments
(a) The FWD avionics compartment is between FR1 and FR9, in the areas of Zones 121/122. Access to the compartment is through the FWD avionics compartment door 811 and through the floor access panels in the cockpit.
(b) The lateral avionics compartment is between FR9 and FR20, in the areas of Zones 125/126. Access to the lateral avionics compartment is through:
- the left hand door 812 of the lateral avionics compartment,
- the right hand door 822 of the lateral avionics compartment,
- the floor access panels in the cockpit,
- the floor access panels in the FWD utility area.
- the left hand door 812 of the lateral avionics compartment,
- the right hand door 822 of the lateral avionics compartment,
- the floor access panels in the cockpit,
- the floor access panels in the FWD utility area.
(c) The AFT avionics compartment is between FR20 and FR24A, in the areas of Zones 127/128. Access to the AFT avionics compartment is through:
- the right hand door 824 of the AFT avionics compartment,
- the floor access panels in the FWD utility area,
- the floor access panels in the FWD cabin area.
- the right hand door 824 of the AFT avionics compartment,
- the floor access panels in the FWD utility area,
- the floor access panels in the FWD cabin area.
B. Landing Gear
(1) Landing Gear Wells
(a) The nose landing-gear well is between FR9 and FR20.
(b) The main landing-gear well is between FR42 and FR46.
C. Equipment Compartments
(1) Compartment Locations
(a) The AFT cabin underfloor-compartment is between FR65 and FR70, in the areas of Zones 171/172, (AFT of the bulk cargo compartment). The compartment is in the pressurized area and has insulation blankets. Access to the compartment is through the access panels 161DW and 162DW. A catwalk is installed in the compartment for maintenance and access to the equipment rack.
The compartment contains:
The compartment contains:
- the air outflow valve 10HL (Ref. AMM D/O 21-31-00-00),
- system service lines for the air conditioning, lavatory, galley ventilation, and waste water.
- fuel lines for the Auxiliary Power Unit (APU).
(b) The horizontal and vertical-stabilizer attachment area is between FR70 and FR78, in the areas of Zones 311/312. It is external to the pressurized area. Access to the compartment is through the access panels 311AL and 312AR. A catwalk is installed in the compartment for maintenance access. The compartment contains:
- attachments for the horizontal and vertical stabilizer (Ref. AMM D/O 53-56-00-00),
- components for the flight control trim system (Ref. AMM D/O 27-40-00-00),
- the Digital Flight Data Recorder (DFDR) and the underwater locator beacon (attached to the DFDR) (Ref. AMM D/O 31-33-00-00),
- the cockpit voice recorder (CVR) (Ref. AMM D/O 23-71-00-00).
(c) The tail-cone APU air-intake area is between FR78 and FR80, in the areas of Zones 313/314. It is external to the pressurized area. Access to the compartment is through the access panel 314AR. The compartment contains the APU system components (Ref. AMM D/O 49-00-00-00).