Uploaded November 2025 | Updated September 2026, 2 weeks ago
Today we will take look on Leak Test of the Principal Static and Total Air Data System because aircraft has several possibilities to know where it is and how fast it fly, among them ADIRS don´t need information from outside of the airplane, like GPS or signals from ground. All what it needs is is air pressure.
The A320 is equipped with three Air Data/Inertial Reference Units (ADIRUs).
Each ADIRU receives data from the four types of sensors after:
- three pitot probes which provide total pressure data,
- six static probes which provide static pressure data,
- two Total Air Temperature (TAT) sensors which provide air temperature data,
- three Angle Of Attack (AOA) sensors which provide angle of attack data of the aircraft.
The TAT sensors and the angle of attack sensors are directly connected to the ADIRUs. The pitot probes and the static probes are connected to eight Air Data Modules (ADM) which convert pressure data before they send them to the ADIRUs.
More about this system you will find in the video.
Big thanks to my collogue for sharing all information :-)
********video is just for information purposes always stick to the latest maintenance manual**********
TAT sensor and how it works:
youtu.be/DbGDZtcl4Bo
if you want support me click here:
youtube.com/channel/UCWiyEWY890-yYO636uUUUiA/join
My Flashlights Fenix LD45R:
fenixlighting.com/products/fenix-ld45r-adjustable-beam-flashlight
My Headlight Fenix HM75R
youtu.be/a_9F5lDHh0A
fenixlighting.com/products/fenix-hm75r-rechargeable-headlamp-plus-power-bank?variant=42909791846454
Where you can find me: Instagram: instagram.com/zeto.r
tiktok: tiktok.com/@zeto.r
Patreon: patreon.com/Zetomaintenance?utm_campaign=creatorshare_creator
Linkedin linkedin.com/in/tom%C3%A1%C5%A1-zeman-1861a094
———-Video content———————
00:00 - Intro
00:37 - what is this system good for and where are components located
05:08 - preparation for test
06:26 - installation of the equipment
12:41 - Test
18:55 - removal of the equipment
19:24 - return aircraft back to service
20:08 - close up
#aircraftmaintenance #howto #howitworks #aircraftlovers #airbuslovers #aircraftengineer #pitotprobe #airdata #avionics #probe #aviation #aviationgeeksociety #technology #austrianairlines #creatingjourneystronger
Today we will take look on Leak Test of the Principal Static and Total Air Data System because aircraft has several possibilities to know where it is and how fast it fly, among them ADIRS don´t need information from outside of the airplane, like GPS or signals from ground. All what it needs is is air pressure.
The A320 is equipped with three Air Data/Inertial Reference Units (ADIRUs).
Each ADIRU receives data from the four types of sensors after:
- three pitot probes which provide total pressure data,
- six static probes which provide static pressure data,
- two Total Air Temperature (TAT) sensors which provide air temperature data,
- three Angle Of Attack (AOA) sensors which provide angle of attack data of the aircraft.
The TAT sensors and the angle of attack sensors are directly connected to the ADIRUs. The pitot probes and the static probes are connected to eight Air Data Modules (ADM) which convert pressure data before they send them to the ADIRUs.
More about this system you will find in the video.
Big thanks to my collogue for sharing all information :-)
********video is just for information purposes always stick to the latest maintenance manual**********
TAT sensor and how it works:
youtu.be/DbGDZtcl4Bo
if you want support me click here:
youtube.com/channel/UCWiyEWY890-yYO636uUUUiA/join
My Flashlights Fenix LD45R:
fenixlighting.com/products/fenix-ld45r-adjustable-beam-flashlight
My Headlight Fenix HM75R
youtu.be/a_9F5lDHh0A
fenixlighting.com/products/fenix-hm75r-rechargeable-headlamp-plus-power-bank?variant=42909791846454
Where you can find me: Instagram: instagram.com/zeto.r
tiktok: tiktok.com/@zeto.r
Patreon: patreon.com/Zetomaintenance?utm_campaign=creatorshare_creator
Linkedin linkedin.com/in/tom%C3%A1%C5%A1-zeman-1861a094
———-Video content———————
00:00 - Intro
00:37 - what is this system good for and where are components located
05:08 - preparation for test
06:26 - installation of the equipment
12:41 - Test
18:55 - removal of the equipment
19:24 - return aircraft back to service
20:08 - close up
#aircraftmaintenance #howto #howitworks #aircraftlovers #airbuslovers #aircraftengineer #pitotprobe #airdata #avionics #probe #aviation #aviationgeeksociety #technology #austrianairlines #creatingjourneystronger
