APU FIRE EXTINGUISHING 26-22-00 DESCRIPTION AND OPERATION 1 ALL General 1 ALL Component Location 1 ALL System Description 1 ALL Power Supply 4 ALL Interface 4 ALL Component Description 4 ALL Fire Extinguisher Bottle 11WF 4 001-049, 101-149 151-199, 211-299 301-399, 401-499 Fire Extinguisher Bottle 11WF 8 051-099, 201-210 Discharge Outlet (Discharge 9 ALL Head) Cartridge 12WF 9 ALL Discharge Indicator 9 ALL Operation/Control and Indicating 9 ALL APU Fire Extinguishing In Flight 10 ALL On Ground 11 ALL APU Fire-Extinguisher 12 ALL Bottle-Overpressure BITE Test 13 ALL Automatic-Fire 13 ALL Extinguishing-Ground Test Squib and Discharge Test 14 ALL Operation
APU FIRE EXTINGUISHING 26-22-00
DEACTIVATION/REACTIVATION 401 ALL
Bottle Weight Check 401 ALL
Refer to the MMEL TASK: 26-22-01 401 ALL
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TABLE OF CONTENTS
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SUBJECT_______ CH/SE/SU _ PAGE EFFECTIVITY________ C ____ ___________
Bottle Pressure Check 403 ALL Refer to the MMEL TASK: 26-22-01 403 ALL Circuit Verfication 406 ALL Refer to the MMEL TASK: 26-22-02 406 ALL Test Circuit Verification 413 ALL Refer to the MMEL TASK: 26-22-04 413 ALL Bottle Pressure Switch Check 419 ALL
Refer to the MMEL TASK: 26-22-05 419 ALL Check of the remaining Squib 424 ALL Integrity
Refer to the MMEL TASK: 26-22-09 424 ALL To make sure that the APU 426 ALL Automatic Fire Extinguishing System is operative when the APU AUTO EXTING TEST is inoperative
Refer to the MMEL TASK: 26-22-10 426 ALL To make sure that the APU 428 ALL Automatic Fire Extinguishing System is operative when the APU FIRE Light on External Power Panel is inoperative
Refer to the MMEL TASK: 26-22-11 428 ALL To make sure that the APU 430 ALL Automatic Fire Extinguishing System is operative when the APU SHUT OFF PB on External Power Panel is inoperative
Refer to the MMEL TASK: 26-22-12 430 ALL Test Circuit Verification 432 ALL Refer to the MMEL TASK: 26-22-04 432 ALL
APU FIRE EXTINGUISHING 26-22-00
ADJUSTMENT/TEST 501 ALL Operational Test of the APU 501 ALL Fire-Extinguishing Loop/Squib Operational Test of APU 504 ALL Auto-Fire-Exting. Circuit and the APU LP Fuel-Valve operation using each indiv. motor in turn and Test APU Emerg. Shutdown Circuit Continuity Check of the APU 522 ALL Fire-Extinguishing Firing-Circuit Operational Test of the 527 ALL Low-Pressure Indicating Circuit of the APU Fire-Extinguishing Bottle
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TABLE OF CONTENTS
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SUBJECT_______ CH/SE/SU _ PAGE EFFECTIVITY
________ C ____ ___________ Operational Test of APU 531 ALL Fire-Exting. P/BSW funct. (single chan. config) and APU LP Fuel-Valve using each indiv. motor in turn and APU Emerg. Shutdown Circuit
APU FIRE EXTINGUISHING 26-22-00
INSPECTION/CHECK 601 ALL
Inspection of the APU 601 ALL
Fire-Extinguishing Distribution
Piping
Inspection/Check of the APU Fire 603 ALL
Extinguishing System
BOTTLE - FIRE EXTINGUISHER 26-22-41
REMOVAL/INSTALLATION 401 ALL
Removal of the Fire Extinguisher 401 ALL
Bottle (11WF)
Installation of the Fire 408 ALL
Extinguisher Bottle (11WF)
BOTTLE - FIRE EXTINGUISHER 26-22-41
INSPECTION/CHECK 601 ALL
Remove and do a Hydrostatic Test 601 ALL
Including Check of the Pressure
Switch Setting of the APU Fire
Extinguisher Bottle (11WF)
CARTRIDGE - FIRE EXTINGUISHER BOTTLE 26-22-42
REMOVAL/INSTALLATION 401 ALL
Removal of the Fire-Extinguisher 401 ALL
Bottle Cartridge (12WF)
Installation of the Fire 407 ALL
Extinguisher Bottle Cartridge
(12WF)
Remove and discard APU Fire 413 ALL
Extinguisher Bottle Cartridge
(12WF)
INDICATOR ASSEMBLY - DISCHARGE 26-22-43
MAINTENANCE PRACTICES 201 ALL
Replacement of the Discharge 201 ALL
Indicator Disc (4035WM)
CARGO COMPARTMENT FIRE EXTINGUISHING 26-23-00
DESCRIPTION AND OPERATION 1 004-049, 051-099 101-149, 151-199 201-299, 301-399
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CHAPTER 26
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FIRE PROTECTION
TABLE OF CONTENTS
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SUBJECT_______ CH/SE/SU _ PAGE EFFECTIVITY________ C ____ ___________ 401-499, General 1 004-049, 051-099 101-105, 151-199 201-299, General 1 106-149, General 1 301-302, General 1 303-399, General 1 401-499, Component Location 1 004-049, 051-099
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