Uploaded June 2025 | Updated September 2026, 2 weeks ago
Airbus A320 CFM56-5B starting system break down ... I tried to keep is simple and short, but let me know if you want more details
The starting system of the engine utilizes pressurized air to drive a turbine at high speed. This turbine applies a torque to the engine high pressure rotor system through a reduction gear in the (starter) turbine and through the engine accessory drive system.
The air which is necessary to drive the starter comes from :
- the APU,
- or the second engine,
- or a ground power unit.
The starter air supply is controlled by a starter shutoff valve (SOV) pneumatically operated and electrically controlled. The SOV has a manual override capability which permits the valve to be opened or closed in case of failure of the electrical control.
The starter shutoff valve closes when the N2 speed reaches 50 percent.
The starter centrifugal clutch disengages when N2 speed is higher than 50 percent.
Engine starting is controlled from the ENG start panel 115VU located on center pedestal and ENG/MAN START switch on the overhead panel.
The starting sequence may be interrupted at any time by placing the MASTER control lever in OFF position which overrides the FADEC. When the MASTER control lever is in OFF position the HP fuel shutoff valve is closed and the engine is stopped.
Thank you all for being here and watching and supporting.
*********video is just for information purposes always stick to the latest maintenance manual. For this purpose, I didn´t record one removal/installation step*********
servicing of the starter:
youtu.be/XBdChureQ1Y
How starting system of CFM-56-5B works
youtu.be/JvGCooPPpF0
what is behind the fan:
youtu.be/yI3nvD481Eo
if you want support me click here: youtube.com/channel/UCWiyEWY890-yYO636uUUUiA/join
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
#airbus #airbus320 #a320 #aircraft #aircraftmaintenance #howto #aircraftlovers #aircraftengineer #aircrafttechnician #starter #start #startervalve #howtostart #engine #aviationgeeks #aviationgeeksociety #wheel #zeto.r #breakdown #components #wefixyoufly #learningeveryday #creatingjourneystronger #austrianairlines
Airbus A320 CFM56-5B starting system break down ... I tried to keep is simple and short, but let me know if you want more details
The starting system of the engine utilizes pressurized air to drive a turbine at high speed. This turbine applies a torque to the engine high pressure rotor system through a reduction gear in the (starter) turbine and through the engine accessory drive system.
The air which is necessary to drive the starter comes from :
- the APU,
- or the second engine,
- or a ground power unit.
The starter air supply is controlled by a starter shutoff valve (SOV) pneumatically operated and electrically controlled. The SOV has a manual override capability which permits the valve to be opened or closed in case of failure of the electrical control.
The starter shutoff valve closes when the N2 speed reaches 50 percent.
The starter centrifugal clutch disengages when N2 speed is higher than 50 percent.
Engine starting is controlled from the ENG start panel 115VU located on center pedestal and ENG/MAN START switch on the overhead panel.
The starting sequence may be interrupted at any time by placing the MASTER control lever in OFF position which overrides the FADEC. When the MASTER control lever is in OFF position the HP fuel shutoff valve is closed and the engine is stopped.
Thank you all for being here and watching and supporting.
*********video is just for information purposes always stick to the latest maintenance manual. For this purpose, I didn´t record one removal/installation step*********
servicing of the starter:
youtu.be/XBdChureQ1Y
How starting system of CFM-56-5B works
youtu.be/JvGCooPPpF0
what is behind the fan:
youtu.be/yI3nvD481Eo
if you want support me click here: youtube.com/channel/UCWiyEWY890-yYO636uUUUiA/join
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
#airbus #airbus320 #a320 #aircraft #aircraftmaintenance #howto #aircraftlovers #aircraftengineer #aircrafttechnician #starter #start #startervalve #howtostart #engine #aviationgeeks #aviationgeeksociety #wheel #zeto.r #breakdown #components #wefixyoufly #learningeveryday #creatingjourneystronger #austrianairlines
