| Missing type | description | Annual maintenance plan | Monthly maintenance plan | Actual overhaul | Deduction points |
| 1 | Maintenance cycle is complete | 1 | 1 | 1 | 0 |
| 2 | Missing year plan | 0 | 1 | 1 | 5 |
| 3 | Lack of monthly plans | 1 | 0 | 1 | 10 |
| 4 | Cancel overhaul | 1 | 1 | 0 | - |
| 5 | Temporary maintenance | 0 | 0 | 1 | 20 |
| 6 | Cancel overhaul | 0 | 1 | 0 | - |
| 7 | Cancel overhaul | 1 | 0 | 0 | - |