What you do when you can’t get new parts, find a beater in a field and strip it for parts. The inspection process may be interesting:
Mechanic holding part: Comrade Inspector, dis part is slightly worn out.
Inspector: Comrade, vill it work?
Mechanic: Da!
Inspector: is it critical?
Mechanic: Neyte!
Inspector: Send it to hanger, ve have plane take off in few hours with cargo for glorious front line to help our brave soldiers. Who needs Airbus when Mother Russia provides from her fertile fields.