According to the Air Code of the Russian Federation, the Open Joint Stock Company «IL» was certificated and granted the right to provide maintenance services for all ILYUSHIN aircraft.
The maintenance scheme, its volume and frequency are predetermined in the Maintenance Schedule issued for every aircraft type.

The Maintenance Schedule stipulate the individual work items as follows:

1. line maintenance services;
2. periodic maintenance services (according to flight hours of the aircraft frame);
3. calendar maintenance services (with low average monthly value of flight hours);
4. maintenance in store during the aircraft storage;
5. maintenance after emergency procedures performed in flight or on the ground.

No.	Aircraft	Types of works	Checklists to be carried out
1.	IL-103	Line maintenance Periodic maintenance	Preflight maintenance, after-flight maintenance, A. F1-F3
2.	IL-18	Line maintenance Periodic maintenance	VS, OS, OV, A, B, V F1-F3
3.	IL-62M	Line maintenance Periodic maintenance	VS, OS, OV, А1, А2, B. F1-F4
4.	IL-76T, TD	Line maintenance Periodic maintenance	VS, OS, OV, A1, A2, B F1-F6
5.	IL-86	Line maintenance Periodic maintenance	VS, OS, OV, Аt, Ab, B F1-F3, Maintenance-10000
6.	IL-96-300	Line maintenance Periodic maintenance	VS, OS, OV, A1, A2, B F1-F3
7.	IL-114	Line maintenance Periodic maintenance	A1, A2, B F1-F3