Center Fuselage - Floor Structure Figure 003A
R EFF : 151-199, 401-499, 53-31-00 Page 16 Aug 01/05
CES
R **ON A/C 301-399,
R (4) Floor Structure
R (Ref. Fig. 003B)
R The passenger compartment is a pressurized zone. The area below the
R passenger compartment floor-structure is unpressurized. The floor
R pressure limit-zone consists of the top-skin panel of the wing
R center-box and two adjacent diaphragms. The diaphragms forward of the
R wing box connect with a pressure bulkhead installed in the lower part
R of FR35.8. The rear diaphragm (which is also the top panel of the
R main landing-gear bay) connects with the pressure bulkhead at FR46.
R Longitudinal beams extend the length of the center fuselage and hold
R the passenger compartment floor above the pressure limit structure.
R The forward beam section is supported between a crossbeam installed
R at FR35.8 and the wing center box. The rear beam section is supported
R between the wing box and a crossbeam installed at FR47. Support
R struts are attached to the crossbeams at each end. Seat and floor
R support tracks are installed on the longitudinal beams and screws
R attach floor panels to the track structure. You can remove the floor
R panels for maintenance work, or to replace them. The longitudinal
R beams, crossbeams, support-struts, seat-tracks and floor support
R tracks are made of aluminum alloy. They are either extruded or
R milled. The floor panels are made of honeycomb core which is bonded
R between Glassfiber Reinforced Plastic (GFRP)
R R Center Fuselage - Floor Structure Figure 003B
EFF : 301-399, 53-31-00 Page 18 May 01/04
CES
MAIN STRUCTURE - INSPECTION/CHECK
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TASK 53-31-00-210-002
Detailed Visual Inspection of Pressure Bulkhead at FR46, FWD Face
1. Reason for the Job
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Refer to the MPD TASK: 533101-01
2. Job Set-up Information
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A. Fixtures, Tools, Test and Support Equipment
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REFERENCE QTY DESIGNATION
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No specific circuit breaker(s) safety clip(s)
No specific lint-free cloth
No specific warning notice
No specific access platform 1.6 m (5 ft. 3 in.)
B. Consumable Materials
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REFERENCE DESIGNATION
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R Material No. 11-002 USA MIL-PRF-680 DRY CLEANING SOLVENT (VARSOL/WHITE SPIRIT) (Ref. 20-31-00)
C. Referenced Information
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REFERENCE DESIGNATION
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29-10-00-864-001 Depressurize the Green Hydraulic System
29-10-00-864-002 Depressurize the Yellow Hydraulic System
29-10-00-864-003 Depressurize the Blue Hydraulic System
32-12-00-010-001 Open the Main Gear Doors for Access
32-12-00-410-001 Close the Main Gear Doors after Access
ASRM 53-31-16-001 (for corrective action)
53-31-00-991-003 Fig. 601
EFF : ALL
53-31-00Page 601
3. Job Set-up
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Subtask 53-31-00-010-051
A. Get Access
(1) Open the MLG doors (Ref. TASK 32-12-00-010-001).
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON
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THE LANDING GEAR.
(2)
Depressurize the Green, Blue and Yellow hydraulic systems (Ref. TASK 29-10-00-864-001), (Ref. TASK 29-10-00-864-002), (Ref. TASK 29-10-00-864-003).
(3)
Put the warning notice in position to tell persons not to operate the landing gear.
(4)
Put the access platform in position.
WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE THE
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SPECIAL MATERIAL.
THIS MATERIAL IS DANGEROUS.
WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320飛機維護手冊 AMM FUSELAGE 機身2(46)
