FAAN warned that at the expiration of this notice, the Authority would take all necessary measures to recover these debts in line with a Presidential directive.
This is contained in a statement signed by its General Manager, Corporate Affairs, Mr Yakubu Dati.
The statement said that all the debtors had earlier been communicated with details of their indebtedness to the aviation Authority.
It advised affected debtors who were in doubt to reach the relevant credit control office at its headquarters to reconcile their accounts.
FAAN said that the debt recovery drive was to enable the Authority to meet its responsibilities, within the burden of these huge debts, as a self-sustaining organization.