The National Security Adviser (NSA), Babagana Munguno, on Sunday banned chopper services in and around Abuja citing security concerns. Analysts say the ban Monday, threw the aviation sector into disarray as investors and operators began to count losses. Damages, running into billions of naira were due to several helicopters idling away in Lagos and Abuja relocated to Kaduna to cash in the brief market. Investigations show further that, many of them had raised their fleet with a short term lease agreement with foreign partners. the NSA had cited security concrens over hovering of chartered Copters in a nation's capital
