🔧🛬🛫Command Sensor Unit (CSU) or how pilots operate flaps and slats on A320
in this video we will take look how pilots control flaps and slats on A320 and what is going on in the background. we will also looh how to replacec omand sensor unit
here you have few deper informations:
The CSU sends discrete signals to the slat channel of each SFCC. At the same time, the CSU sends discrete signals for the flap position to the flap channel. The switch pattern of the CSU changes when the control lever moves. This causes the SFCC to get different signals. Each slat channel receives signals from two sets of the 5-track switches in the CSU. For a correct signal, each channel must receive the same detent pattern from the two sets of switches.
For a permitted out-of-detent pattern, each channel must receive the same out-of-detent pattern from the two sets of switches.
If a different configuration occurs, it is a CSU failure.
Normal Operation
System Configuration
For normal operation of the flaps:
energize the aircraft electrical network
close the circuit breakers 6CV, 8CV, 10CV and 12CV
pressurize the Green hydraulic system for flap system 1 and the Yellow hydraulic system for flap system 2.
NOTE:
For safety, the circuit breakers 10CV and 12CV have a red guard installed to prevent incorrect operation during flight. To open the circuit breakers it is necessary to remove the applicable red guard first.
Manual Contro
l
The slat and flap control lever controls the position of the flaps. When the slat and flap control lever is moved to a new position, the flaps move to the indicated flap angle.
NOTE:
The flaps may move when the slat and flap lever moves from position 0 to 1 or 1 to 0.
Depending on the CAS from the ADIRU
Flap Auto-Command Function
Two flap configurations, which are dependent on the airspeed, are possible with the slat and flap control lever at the position 1 (ECAM indication 1 or 1 + F).
The configurations are related to the Computed Air Speed (CAS) and the lever position (0 or 2) before the lever is set to the position 1.
In the 10 deg configuration, the flaps retract automatically to 0 deg if the CAS is equal to or more than 210 knots. After the automatic retraction, the flaps will not extend (to configuration 1 + F) until the CAS is equal to or less than 100 knots.
********video is just for information purposes always stick to the latest maintenance manual********
Instagram:
/ zeto.r
tiktok:
/ zeto.r
———-Video content———————
00:00 - Intro
00:11 - Explanation of system
01:20 - Preparatiion
01:48 - removal SCU
03:45 - explanation of SCU
04:43 - instalation of SCU
07:28 - preparation for test
09:25 - test and flaps positon explanation
#aircraftmaintenance #howto #howitworks #aircraftmaintenanceengineer #aircraftlovers #airbuslovers #aircraftengineer #islide #aircrafttechnician #aircraftphotography #aircrafttechnician #aviationgeeks #aviationgeeksociety #technology #austrianairlines