Airbus a320 cockpit switches12/17/2023 ![]() ![]() The pilots will declare a MAYDAY and operate the aircraft with the following systems: Fly PFD 1 using Alternate Law Navigate ND 1, FMGC 1, RMP 1, VOR 1/ILS 1, DME 1 Communicate VHF 1, HF 1, ATC 1 FCTM Airbus A320 – Significant Remaining Systems in ELEC EMER CONFIG There are a number of systems remaining to allow the fly the aircraft, to navigate to a safe landing and to communicate with air traffic control (AVIATE – NAVIGATE – COMMUNICATE). Even in this serious situation the aircraft will be flyable. Systems Remaining in Emergency Electrical Configuration (ELEC EMER)Īlthough the loss of all main generators leading to ELEC EMER is highly unlikely, the system is designed with safety in mind. Multiple systems will be downgraded or lost completely, and the pilots can refer to the ELEC EMER CONFIG SYS REMAINING in the QRH (Quick Reference Handbook) for a list of the remaining systems. Most of the displays will be lost and the pilot in the left seat will fly the aircraft manually while the right-seat pilot troubleshoots the problem and provides assistance to the PF (Pilot Flying). There will be multiple ECAM warnings and QRH procedures to reference. This cockpit workload for the pilots will increase significantly. Related Reading: A Guide to the Airbus A320 Hydraulic SystemĮLEC EMER – Emergency Electrical Configuration (A320)ĮLEC EMER (as it is referred to by the ECAM procedure) is triggered by the loss of all main generators (Engine 1, Engine 2 and the Auxiliary Power Unit APU) which causes the loss of AC 1 and AC 2 busbars. ![]() The blue hydraulic circuit (A320) drives the emergency generator, or “EMER GEN”. The Ram Air Turbine (RAT) installed on the A320 is coupled to a hydraulic pump that allows the blue hydraulic system to be pressurized even if both engines fail or electrical power is lost. How does the RAT work on the Airbus A320? From fascinating stories at the dawn of aviation to modern day aircraft accidents. The 5 Best Aviation Audiobooks (Chosen by a Pilot) A list of the best aviation audiobooks chosen by a current airline pilot. Airbus A320 Flight Crew Operating Manual (DSC-24-10-30-30) During this time the batteries power the emergency generation network.ĭuring RAT extension and emergency generator coupling (about 8 s), the batteries power the emergency generation network. Note that RAT extension and coupling to the EMER GEN takes approximately 8 seconds. As per Airbus SOP’s, guarded switches require both pilots to confirm the button is correct before it is pressed.Īs stated above, the emergency generator (EMER GEN) will supply the aircraft electrical system with, or without, a delay depending on the circumstance. the switch is covered by a red tab that has to be moved aside before pressing the relevant button. Guarded Switches: The RAT MAN ON pushbutton is a “guarded switch” i.e. Note however in this case, the emergency generator is connected to the aircraft’s electrical circuit 3 seconds after the RAT supplies the emergency generator.Įmergency generator coupling occurs 3 s after the RAT supplies the emergency generator. The RAT MAN ON pushbutton (located on the “EMER ELRC PWR” section of the overhead panel on the A320) will deploy the RAT manually. If the pilots decide to manually deploy the RAT (this could be in response to an ECAM or while following a QRH procedure) they will select the “RAT MAN ON” pushbutton on the overhead panel. Note in the case of automatic deployment, the emergency generator (EMER GEN) will be connected to the aircraft electrical system as soon as its parameters are within limits.Īs soon as the emergency generator electrical parameters are within tolerance the emergency generator is connected to the aircraft network. ![]() The A320 RAT automatically deploys when the following conditions are met: The RAT can be deploy either automatically, or manually when selected by the pilots. The role of the Ram Air Turbine on the Airbus A320 is to act as an electrical backup in the event of a serious emergency.
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