**ON A/C 062-099,
21-31-51-991-001-C Fig. 401A R **ON A/C 106-149, 151-199, 204-299, 301-399, 401-499,
21-31-51-991-001-B Fig. 401B
**ON A/C 201-203,
21-31-51-991-001-A Fig. 401C
**ON A/C ALL
3. Job Set-up
__________
Subtask 21-31-51-861-051
A. Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
Subtask 21-31-51-865-072
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1HL, 2HL, 3HL.
Subtask 21-31-51-010-050
C. Get Access WARNING : DO NOT OPEN OR GO NEAR PRESSURE-SEALED DOORS WHEN THE AIRCRAFT
_______ IS PRESSURIZED. A PRESSURE-SEALED DOOR THAT OPENS WHEN THE AIRCRAFT IS PRESSURIZED.
-WILL CAUSE EXPLOSIVE DECOMPRESSION.
-CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAUSE DAMAGE TO THE AIRCRAFT/EQUIPMENT.
WARNING : OPEN THE ACCESS DOOR AND MAKE SURE IT STAYS OPEN.
_______ ATTACH A WARNING NOTICE TO THE ACCESS DOOR TO TELL PERSONS NOT TO CLOSE IT. THIS IS TO PREVENT ACCIDENTAL PRESSURIZATION OF THE AIRCRAFT BY THE AIR CONDITIONING SYSTEM IF ALL THE OTHER CABIN OPENINGS ARE CLOSED. PRESSURIZATION OF THE AIRCRAFT CAN BE DANGEROUS. IT CAN CAUSE A DOOR TO OPEN WITH EXPLOSIVE FORCE WHICH CAN CAUSE INJURY AND/OR DAMAGE.
(1)
Put the access platform in position below the outflow valve 10HL in the zone 172.
(2)
Put the access platform in position at the access panel 312AR.
(3)
Remove the access panel 312AR.
(4)
Open the AFT cargo-compartment door 826 (Ref. TASK 52-30-00-860-001).
(5)
Put the access platform in position at the AFT cargo-compartment door
826.
(6) Remove the access panel 162CW (Ref. TASK 25-55-12-000-003).
**ON A/C 001-049, 051-061, 101-105,
(Ref. Fig. 401/TASK 21-31-51-991-001)
**ON A/C 062-099,
(Ref. Fig. 401A/TASK 21-31-51-991-001-C) R **ON A/C 106-149, 151-199, 204-299, 301-399, 401-499,
(Ref. Fig. 401B/TASK 21-31-51-991-001-B)
**ON A/C 201-203,
(Ref. Fig. 401C/TASK 21-31-51-991-001-A)
Outflow Valve 10HL Figure 401/TASK 21-31-51-991-001- 12 (SHEET 1)
R 1EFF : 001-049, 051-061, 101-105, 1 21-31-51Page 404 1 1 May 01/05 1 1 1CES 1
Outflow Valve 10HL Figure 401/TASK 21-31-51-991-001- 22 (SHEET 2)
R 1EFF : 001-049, 051-061, 101-105, 1 21-31-51Page 405 1 1 May 01/05 1 1 1CES 1
R Outflow Valve 10HL
R Figure 401A/TASK 21-31-51-991-001-C12 (SHEET 1)
R 1EFF : 062-099, 1 21-31-51Page 406 1 1 May 01/05 1 1 1CES 1
R Outflow Valve 10HL
R Figure 401A/TASK 21-31-51-991-001-C22 (SHEET 2)
R 1EFF : 062-099, 1 21-31-51Page 407 1 1 May 01/05 1 1 1CES 1
Outflow Valve 10HL
Figure 401B/TASK 21-31-51-991-001-B12 (SHEET 1)
R 1EFF : 106-149, 151-199, 204-299, 301-399, 1 21-31-51Page 408 1401-499, 1Aug 01/05 1 1 1CES 1
Outflow Valve 10HL
Figure 401B/TASK 21-31-51-991-001-B22 (SHEET 2)
R 1EFF : 106-149, 151-199, 204-299, 301-399, 1 21-31-51Page 409 1401-499, 1Aug 01/05 1 1 1CES 1
Outflow Valve 10HL R Figure 401C/TASK 21-31-51-991-001-A12 (SHEET 1)
R 1EFF : 201-203, 1 21-31-51Page 410 1 1 May 01/05 1 1 1CES 1
Outflow Valve 10HL R Figure 401C/TASK 21-31-51-991-001-A22 (SHEET 2)
R 1EFF : 201-203, 1 21-31-51Page 411 1 1 May 01/05 1 1 1CES 1 **ON A/C ALL
Subtask 21-31-51-869-052
D. Energize the service interphone system (Ref. TASK 23-44-00-700-001). Subtask 21-31-51-860-052
E. Aircraft Maintenance Configuration WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE OUTFLOW VALVES ARE
_______ CLEAR. MOVEMENT OF THE OUTFLOW VALVES CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
WARNING : KEEP AWAY FROM THE MOVING AND ENERGIZED PARTS OF THE OUTFLOW
_______ VALVE WHEN YOU OPERATE OR TEST THE VALVE. THESE CAN CAUSE INJURY TO PERSONS.
(1) Close the outflow valve from the cockpit: NOTE : For this procedure we recommend that a minimum of two persons
____ are in constant contact with each other through the service interphone system. One person must operate the outflow valve from the cockpit, the other must be at the outflow valve.
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