Topzle Updated: Wikipedia source
Aircraft maintenance checks are periodic inspections that have to be done on all commercial and civil aircraft after a certain amount of time or usage. Military aircraft normally follow specific maintenance programmes which may, or may not, be similar to those of commercial and civil operators.
| Aircraft | Estimated | Actual |
| Boeing 777-200ER | $2.5 | $4.0 |
| Boeing 777-300ER | $2.7 | $4.5 |
| Boeing 747-400 | $4.0 | $6.0 |
| Boeing 737-800 | $0.65 | $1.0 |
| Model | A Check | C Check | D Check |
| Airbus A220 | 1,000 | 8,500 | |
| Airbus A320 family | 750 (or 750 cycles or 4 months) | 12,000 (or 8,000 cycles or 36 months) | 6/12 years |
| ATR 42/ATR 72 | 750 | 5,000 | 2/4/8 years |
| Bombardier CRJ700 series | 800 | 8,000 | |
| Bombardier Dash 8 | 800 | 8,000 | |
| Bombardier Global 7500 | 850/36 months | 8,500 cycles / 12 years | |
| Embraer E-Jet family | 1,000 | 7,500 | |
| Embraer E-Jet E2 family | 1,000 | 10,000 | |
| Mitsubishi Regional Jet | 750 | 7,500 | |
| Boeing 737 NG | 150/600 | 7,500 (or 730 days) | |
| Boeing 767-300ER | 750 (or 300 Flight Cycles) | 6,000 (or 3,000 Flight Cycles or 18 Months) | |
| Boeing 747-400/747-8 | 600/1,000 | 7,500/10,000 | 6 years (systems) 8/8/6 years (most structures and zonal) |