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  • Chapter 16: Cabin Environmental Control Systems › Combustion Heaters › Safety Features

    designed to cut fuel to the combustion heater before an unwanted fire occurs. When this switch activates, a light is illuminated in the flight deck and the heater cannot be restarted until maintenance determines the cause. Some heaters contain ... prevent fuel from being delivered to the combustion chamber if the ignition system is not working. Maintenance & Inspection Maintenance of combustion heaters consists of routine items, such as cleaning filters, checking spark plug wear, and ensuring inlets are not plugged…

  • Chapter 17: Fire Protection Systems

    Combustion heater manufacturers also produce maintenance guidelines that should be followed. Intervals between the performance of maintenance items and the time between overhauls must be followed to help ensure a properly functioning heater is available when it is needed. Inspection…

  • Chapter 7: Aircraft Systems › Heating System › Fuel Fired Heaters

    diameter tube conducts air around the combustion tube’s outer surface, and a second fan blows the warmed air into tubing to direct it towards the interior of the aircraft. Most gasoline heaters can produce between ... compatible with a 12-volt and 24-volt aircraft electrical system. The heater requires routine maintenance, such as regular inspection of the combustion tube and replacement of the igniter at periodic intervals. Because gasoline heaters are required to be vented…