6111 to 8111. HNA's salary for aircraft maintenance is 6,111 to 8,111 yuan per month, with weekends off, holidays, holiday benefits, paid vacations, and car subsidies. The business scope is mainly the maintenance and maintenance of aircraft, aircraft engines, ground aviation equipment and special vehicles; Training of flight attendants and maintenance personnel; Aircraft repair technical consulting services; Intra-provincial trade of aviation equipment spare parts.