5. Close-up
________ Subtask 12-14-32-410-051
A. Close Access WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE LANDING GEAR ARE CLEAR.
_______
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Close the NLG doors (Ref. TASK 32-22-00-410-001). Subtask 12-14-32-942-056
B. Removal of Equipment
(1)
Remove the safety barriers.
(2)
Remove the warning notice(s).
(3)
Remove the access platform(s).
(4)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
OXYGEN - SERVICING
__________________
TASK 12-14-35-600-001
Servicing of the Oxygen-Replenishing
WARNING : KEEP ALL HYDROCARBONS (FUELS, LUBRICANTS, ETC.) AWAY FROM ALL SOURCE
_______ OF OXYGEN. OXYGEN BECOMES EXPLOSIVE WHEN IT TOUCHES HYDROCARBONS.
WARNING : OBEY THESE SPECIAL PRECAUTIONS WHEN YOU DO THIS PROCEDURE:
_______
-PREVENT ALL MAINTENANCE PROCEDURES NEARER THAN 5M (13.5 FT) TO THE WORKING AREA OF THE AIRCRAFT.
-STOP ALL REFUELING, ALL REPAIRS ON FUEL AND HYDRAULIC SYSTEMS, AND ALL PROCEDURES THAT USE FLAMMABLE MATERIALS SUCH AS CLEANING AND DE-ICING MATERIALS. MAKE SURE THAT NO PERSONS CONNECT/DISCONNECT THE GROUND POWER CONNECTOR.
-MAKE SURE THAT NO PERSONS SMOKE, AND THAT THERE ARE NO FLAMES, IN A RADIUS OF 15M (50 FT) OF THE REPLENISHING EQUIPMENT.
-USE ONLY TOOLS/GROUND SERVICING EQUIPMENT MADE SPECIALLY FOR OXYGEN SYSTEMS.
-MAKE SURE THAT YOUR HANDS AND ALL THE TOOLS/GROUND SERVICING EQUIPMENT ARE CLEAN. THIS WILL PREVENT CONTAMINATION OF THE OXYGEN SYSTEM.
-CAREFULLY OBEY THE REPLENISHING INSTRUCTIONS. IF YOU DO NOT OBEY THESE INSTRUCTIONS, YOU CAN CAUSE A FIRE OR AN EXPLOSION.
-MAKE SURE THAT THERE IS A GOOD FLOW OF AIR THROUGH THE WORK AREA TO PREVENT A CONCENTRATION OF OXYGEN.
-DURING THIS PROCEDURE, MAKE SURE THAT THERE ARE NOT PASSENGERS IN THE AIRCRAFT.
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
No specific thermometer
No specific warning notice
No specific access platform 2 m (6 ft. 7 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
12-34-24-869-001 Aircraft Grounding for the Refuel/Defuel Operations 35-00-00-860-001 Special precautions when working on a Gaseous Oxygen
System 12-14-35-991-001 Fig. 301 12-14-35-991-003 Fig. 302 12-14-35-991-002 Fig. 303
3. Job Set-up
__________ Subtask 12-14-35-010-052
A. Get Access
(1) Put the access platform in position at the access door 812.
(2) Open the access door 812. Subtask 12-14-35-941-051
B. Safety Precautions
(Ref. Fig. 301/TASK 12-14-35-991-001)
(1)
Make sure that the overboard discharge indicator shows green.
(2)
Put the warning notice in the work area to tell persons that the oxygen filling operation is dangerous.
(3)
Make sure that the date of the test given on the cylinder is in the permitted time limit.
Subtask 12-14-35-865-050
C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU OXYGEN/CREW/OXY/SPLY 1HT HA01
Location of the Oxygen System
Figure 301/TASK 12-14-35-991-001
1EFF : 051-099, 1 12-14-35 Page 303
1 1 May 01/05
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Subtask 12-14-35-860-051
D. Aircraft Maintenance Configuration
(Ref. Fig. 302/TASK 12-14-35-991-003)
(1)
Special precautions when working on a gazeous oxygen system (Ref. TASK 35-00-00-860-001).
(2)
Make sure that the oxygen line end-fittings and the electrical connectors are in the correct condition.
(3)
Electrically ground the aircraft oxygen ground-filling equipment. Connect an electrostatic bonding cable between the aircraft and the oxygen-system filling assembly (Ref. TASK 12-34-24-869-001).
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