New Delhi, Dec. 28 -- The civil aviation regulator on Friday suspended Akasa Air's directors of operations and flight training for six months each after an audit found lapses. The action was taken after the Directorate General of Civil Aviation (DGCA), in a regulatory audit conducted on October 7 in Mumbai, found that the required navigation performance (RNP) training was being conducted on "unqualified" simulators, in violation of its rules....