This operation bulletin contains the following information:
- rules for operating the air conditioner, maintenance, possible air conditioner malfunctions and instructions for their elimination;
- names and brands of fuels and lubricants used during operation and maintenance of the air conditioner, indicating their quantity and frequency;
- a maintenance operation has been introduced to replace the filter cartridges of the cabin ventilation and heating system.

This service bulletin clarifies the procedure for performing maintenance operations of the air cleaner.