The most important elements for maintaining airworthiness and increasing the level of aircraft flight safety are the refinement of civil aviation equipment according to Service Bulletins, coordinated approaches, requirements, established relations and relationships between the aviation industry enterprises, operating and repair enterprises. The ”Mountain Helicopters” Group of Companies fulfills all prescribed bulletins in accordance with the aviation legislation:
- Mandatory Emergency Bulletins
- Upgrade and Upgrade Bulletins
- Valid Bulletins - may or may not be mandatory
- Operational bulletins - are carried out according to the manufacturer's technical documentation
- Repair bulletins are fulfilled according to the manufacturer's technical documentation
All bulletins are fulfilled on the basis of the data of the assembling parts and repair tolerances.