Question

what happens when the lh or rh eng fire switch light is pressed? list six things...and no, eicas warnings and indications do not count. these are six physical things happening (closing/disabling/deenergizing) to the aircraft systems.

Answer 1

Pressing the LH or RH ENG FIRE switch light on an aircraft triggers a series of actions such as cutting off fuel supply and hydraulic fluid to the engine, shutting off engine bleed air, disconnecting the engine generator, activating the fire extinguisher, and deactivating engine-driven pumps.

Step-by-step explanation:

When the LH (Left Hand) or RH (Right Hand) ENG FIRE switch light is pressed on an aircraft, several critical actions are initiated to mitigate the fire and protect the aircraft. These actions typically include:

• The fuel supply to the affected engine is cut off to help starve the fire of fuel.
• The hydraulic fluid flow to the engine is shut down to prevent hydraulic fires.
• Engine bleed air is shut off to prevent additional oxygen from feeding the fire.
• The engine generator is disconnected to remove its electrical power source which could spark further fire.
• The engine's arm fire extinguisher is activated to discharge fire retar_dant and help extinguish the fire.
• Associated engine-driven pumps and related systems are deactivated to mitigate the spread of the fire and to reduce the risk of further damage.

These measures are designed to contain and extinguish the fire as quickly as possible, ensuring the safety of the flight.