Aircraft Fire Detection System - Revision history

Admin at 22:06, 28 April 2025

2025-04-28T22:06:03Z

← Older revision		Revision as of 15:06, 28 April 2025
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	* [https://www.faa.gov/sites/faa.gov/files/11_amtp_ch9.pdf FAA]		* [https://www.faa.gov/sites/faa.gov/files/11_amtp_ch9.pdf FAA]
	* [https://toolkittech.com/shop/aircraft-fire-detection-extinguishing/ Tool Kit Tech]		* [https://toolkittech.com/shop/aircraft-fire-detection-extinguishing/ Tool Kit Tech]

			[[Category:Aviation Safety X]]
			[[Category:ASXWiki]]
			[[Category:Aircraft Fire Detection System]]
			[[Category:Aircraft safety systems]]
			[[Category:Aircraft emergency systems]]
			[[Category:Aviation safety]]
			[[Category:Fire detection and suppression]]
			[[Category:Aircraft systems]]
			[[Category:Aircraft maintenance]]
			[[Category:Aviation accident prevention]]
			[[Category:Flight safety]]
			[[Category:Aircraft sensors]]
			[[Category:Aircraft fire protection]]
			[[Category:Aircraft equipment]]
			[[Category:Aviation incidents and accidents]]
			[[Category:Aircraft powerplants]]
			[[Category:Electrical fires]]
			[[Category:Firefighting equipment]]

Admin at 16:32, 27 March 2025

2025-03-27T16:32:46Z

← Older revision		Revision as of 09:32, 27 March 2025
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	[[File:Screenshot_2025-03-27_at_11.25.16_AM.png\|thumb\|right\|400px\|Image: FAA]]		[[File:Screenshot_2025-03-27_at_11.25.16_AM.png\|thumb\|right\|400px\|Image: FAA]][[File:FAA_20.png\|thumb\|right\|400px\|Image: FAA]]

	== Introduction ==		== Introduction ==
	Aircraft fire detection systems are critical safety features installed in multiengine aircraft. These systems, mandated by FAA regulations, are designed to detect and extinguish fires in designated fire zones, such as engine compartments and auxiliary power unit (APU) areas. The systems operate automatically or with crew intervention to mitigate fire hazards during flight and on the ground.		Aircraft fire detection systems are critical safety features installed in multiengine aircraft. These systems, mandated by FAA regulations, are designed to detect and extinguish fires in designated fire zones, such as engine compartments and auxiliary power unit (APU) areas. The systems operate automatically or with crew intervention to mitigate fire hazards during flight and on the ground.
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	* Pneumatic Thermal Detectors		* Pneumatic Thermal Detectors
	* Continuous-Loop Detection Systems (Kidde & Fenwal)		* Continuous-Loop Detection Systems (Kidde & Fenwal)
	* Dual-Loop Logic for redundancy and reliability~~[[File:FAA_20.png\|thumb\|right\|400px\|Image: FAA]]~~		* Dual-Loop Logic for redundancy and reliability
	== Fire Zones and Engine Protection ==		== Fire Zones and Engine Protection ==
	Designated fire zones include the engine power and accessory sections, APU, combustion areas, and others per FAA guidelines. Each area includes fire detection and extinguishing mechanisms to manage thermodynamic and mechanical hazards such as turbine blade failure or flammable fluid leaks.		Designated fire zones include the engine power and accessory sections, APU, combustion areas, and others per FAA guidelines. Each area includes fire detection and extinguishing mechanisms to manage thermodynamic and mechanical hazards such as turbine blade failure or flammable fluid leaks.

Admin at 16:32, 27 March 2025

2025-03-27T16:32:16Z

← Older revision		Revision as of 09:32, 27 March 2025
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	* Pneumatic Thermal Detectors		* Pneumatic Thermal Detectors
	* Continuous-Loop Detection Systems (Kidde & Fenwal)		* Continuous-Loop Detection Systems (Kidde & Fenwal)
	* Dual-Loop Logic for redundancy and reliability		* Dual-Loop Logic for redundancy and reliability[[File:FAA_20.png\|thumb\|right\|400px\|Image: FAA]]
	[[File:FAA_20.png\|thumb\|right\|400px\|Image: FAA]]

	== Fire Zones and Engine Protection ==		== Fire Zones and Engine Protection ==
	Designated fire zones include the engine power and accessory sections, APU, combustion areas, and others per FAA guidelines. Each area includes fire detection and extinguishing mechanisms to manage thermodynamic and mechanical hazards such as turbine blade failure or flammable fluid leaks.		Designated fire zones include the engine power and accessory sections, APU, combustion areas, and others per FAA guidelines. Each area includes fire detection and extinguishing mechanisms to manage thermodynamic and mechanical hazards such as turbine blade failure or flammable fluid leaks.

Admin at 16:31, 27 March 2025

2025-03-27T16:31:31Z

← Older revision		Revision as of 09:31, 27 March 2025
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	* Continuous-Loop Detection Systems (Kidde & Fenwal)		* Continuous-Loop Detection Systems (Kidde & Fenwal)
	* Dual-Loop Logic for redundancy and reliability		* Dual-Loop Logic for redundancy and reliability
			[[File:FAA_20.png\|thumb\|right\|400px\|Image: FAA]]

	== Fire Zones and Engine Protection ==		== Fire Zones and Engine Protection ==
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	== Boeing 777 Example ==		== Boeing 777 Example ==
	~~[[File:FAA_20.png\|thumb\|right\|400px\|Image: FAA]]~~

	The Boeing 777 uses a dual-loop fire detection and extinguishing system with:		The Boeing 777 uses a dual-loop fire detection and extinguishing system with:
	* Independent loops and squibs per engine		* Independent loops and squibs per engine

Admin: 1 revision imported

2025-03-27T16:30:37Z

1 revision imported

← Older revision	Revision as of 09:30, 27 March 2025
(No difference)

wikipedia>ASXSystem at 16:29, 27 March 2025

2025-03-27T16:29:47Z

← Older revision		Revision as of 09:29, 27 March 2025
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			[[File:Screenshot_2025-03-27_at_11.25.16_AM.png\|thumb\|right\|400px\|Image: FAA]]

	== Introduction ==		== Introduction ==
	Aircraft fire detection systems are critical safety features installed in multiengine aircraft. These systems, mandated by FAA regulations, are designed to detect and extinguish fires in designated fire zones, such as engine compartments and auxiliary power unit (APU) areas. The systems operate automatically or with crew intervention to mitigate fire hazards during flight and on the ground.		Aircraft fire detection systems are critical safety features installed in multiengine aircraft. These systems, mandated by FAA regulations, are designed to detect and extinguish fires in designated fire zones, such as engine compartments and auxiliary power unit (APU) areas. The systems operate automatically or with crew intervention to mitigate fire hazards during flight and on the ground.
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	== Boeing 777 Example ==		== Boeing 777 Example ==
			[[File:FAA_20.png\|thumb\|right\|400px\|Image: FAA]]

	The Boeing 777 uses a dual-loop fire detection and extinguishing system with:		The Boeing 777 uses a dual-loop fire detection and extinguishing system with:
	* Independent loops and squibs per engine		* Independent loops and squibs per engine
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	== Gallery ==		== Gallery ==
	<gallery>		<gallery>
	~~File:Screenshot_2025-03-27_at_11.25.16_AM.png\|Image: FAA~~
	File:Screenshot_2025-03-27_at_11.25.26_AM.png\|Image: FAA		File:Screenshot_2025-03-27_at_11.25.26_AM.png\|Image: FAA
	File:Screenshot_2025-03-27_at_11.25.43_AM.png\|Image: FAA		File:Screenshot_2025-03-27_at_11.25.43_AM.png\|Image: FAA
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	File:FAA_18.png\|Image: FAA		File:FAA_18.png\|Image: FAA
	File:FAA_19.png\|Image: FAA		File:FAA_19.png\|Image: FAA
	~~File:FAA_20.png\|Image: FAA~~
	File:FAA_21.png\|Image: FAA		File:FAA_21.png\|Image: FAA
	File:FAA_22.png\|Image: FAA		File:FAA_22.png\|Image: FAA

Admin: 1 revision imported

2025-03-27T16:21:08Z

1 revision imported

← Older revision	Revision as of 09:21, 27 March 2025
(No difference)

wikipedia>ASXSystem at 16:20, 27 March 2025

2025-03-27T16:20:07Z

New page

== Introduction ==
Aircraft fire detection systems are critical safety features installed in multiengine aircraft. These systems, mandated by FAA regulations, are designed to detect and extinguish fires in designated fire zones, such as engine compartments and auxiliary power unit (APU) areas. The systems operate automatically or with crew intervention to mitigate fire hazards during flight and on the ground.

== Fire Detection Systems ==
Aircraft use a variety of fire detection technologies including:
* Thermal Switch Systems
* Thermocouple Systems
* Optical Flame Detectors (IR & UV)
* Pneumatic Thermal Detectors
* Continuous-Loop Detection Systems (Kidde & Fenwal)
* Dual-Loop Logic for redundancy and reliability

== Fire Zones and Engine Protection ==
Designated fire zones include the engine power and accessory sections, APU, combustion areas, and others per FAA guidelines. Each area includes fire detection and extinguishing mechanisms to manage thermodynamic and mechanical hazards such as turbine blade failure or flammable fluid leaks.

== Fire Extinguishing Systems ==
Most systems use Halon 1301 or carbon dioxide as extinguishing agents. Components include:
* Fire bottles (HRD containers)
* Discharge valves and squibs
* Pressure switches and visual indicators (red/yellow discs)
* Two-way check valves
* Engine and APU fire switches

== Maintenance and Troubleshooting ==
Routine inspections ensure loop continuity, detect abrasion, corrosion, or dents, and verify pressure/temp limits. Fire extinguishing cartridges have service lifespans. Troubleshooting includes checking for intermittent alarms, false positives, and moisture-induced warnings.

== Boeing 777 Example ==
The Boeing 777 uses a dual-loop fire detection and extinguishing system with:
* Independent loops and squibs per engine
* Automatic and manual discharge mechanisms
* APU-specific fire detection and auto-discharge logic
* Master warning/caution lights and fire panel controls

== Gallery ==
<gallery>
File:Screenshot_2025-03-27_at_11.25.16_AM.png|Image: FAA
File:Screenshot_2025-03-27_at_11.25.26_AM.png|Image: FAA
File:Screenshot_2025-03-27_at_11.25.43_AM.png|Image: FAA
File:FAA_4.png|Image: FAA
File:FAA_5.png|Image: FAA
File:FAA_6.png|Image: FAA
File:FAA_7.png|Image: FAA
File:FAA_8.png|Image: FAA
File:FAA_9.png|Image: FAA
File:FAA_10.png|Image: FAA
File:FAA_11.png|Image: FAA
File:FAA_12.png|Image: FAA
File:FAA_13.png|Image: FAA
File:FAA_14.png|Image: FAA
File:FAA_15.png|Image: FAA
File:FAA_16.png|Image: FAA
File:FAA_17.png|Image: FAA
File:FAA_18.png|Image: FAA
File:FAA_19.png|Image: FAA
File:FAA_20.png|Image: FAA
File:FAA_21.png|Image: FAA
File:FAA_22.png|Image: FAA
File:FAA_23.png|Image: FAA
File:FAA_24.png|Image: FAA
File:FAA_25.png|Image: FAA
File:FAA_26.png|Image: FAA
</gallery>

== References ==
* [https://www.faa.gov/sites/faa.gov/files/11_amtp_ch9.pdf FAA]
* [https://toolkittech.com/shop/aircraft-fire-detection-extinguishing/ Tool Kit Tech]