sentences:  ensure (24 hours a day, 7 days a week), that all non-routine maintenance required to be carried out in Belgrade main base and in the bases worldwide, plus troubleshooting support to both, Line and Base maintenance Dpt., is applied in accordance with necessary standards.Base Maintenance Department provides base maintenance services in compliance with technical, quality, safety and economic standards.Jat Tehnika is developing a base maintenance production system in order to minimize the whole cost and to respect and keep up with agreed service levels.