Letters of redundancy were issued to the affected employees during the week.
Media Consultant, Simon Tumba, confirmed the development in a statement issued on Thursday in Lagos.
Tumba said the workers would be paid their pension and gratuity.
Aero Contractors as at last September had about 1,500 workers on its payroll before it suspended flights.
Tumba said the airline had been grappling with huge and unrealistic personnel cost as well as other operational challenges, worsened by lack of enough aircraft to keep all the workers meaningfully engaged.
“The issuance of notification of redundancy is a business decision that will ensure Aero’s survival.
“The current situation where over a thousand people are basically not engaged due to lack of serviceable aircraft is not sustainable for the airline.
“The huge monthly salary associated with a bloated workforce will eventually kill the airline, which is not the intention of the current government”, he said.
According to Tumba, Aero Contractors currently had aircraft-to-employee ratio of 1:500, which analysts believed was perhaps the worst in the history of global airline industry.
He said, “This decision will immediately reduce the whopping operational cost, which has been stifling Aero; enable the management bring in more aircraft through savings from overheads and pay for C-checks.
“It will also enable Aero have a more manageable and committed workforce in line with international best practices of 50 to 60 personnel to one aircraft unlike what obtains in Aero at the moment.”
Tumba, however, added that those in Maintenance Repair and Overhaul and other essential staff in critical departments would not be affected.
Tumba said Captain Ado Sanusi, the Chief Executive Officer of Aero, had also assured the workers that they stand a chance of being recalled as soon as the airline increases the number of aircraft in its fleet in the near future.