Goa airport is heading for an annual maintenance closure for three days during the day time from April 5 onwards, forcing airline companies to reschedule their flights for this coastal destination. The Indian Navy, which maintains the airstrip, has announced that the airport will be closed for all civil and military flying between 7 am and 4 pm from April 5-8. Navy's public relation officer Commander Prashant Mathur said the flights are being rescheduled and necessary measures taken to avoid inconvenience to the passengers.