Apart from the 31 non-operational airports, there are 45 defence airports, 83 state government airports and five private air strips lying unused, K C Venugopal, Minister of State in the Ministry of Civil Aviation informed the Rajya Sabha today.
The 31 non-operational airports are located in 16 states and AAI has spent a total of Rs 34.43 crore since 2009-10 on their maintenance.
In 2009-10, AAI spent Rs 8.07 crore, in 2010-11, RS 19.23 crore and in 2011-12 Rs 11.46 crore, he said, adding AAI has incurred a loss of Rs 38.74 crore on these airports in last three financial year.
During the audit, irregularities pertaining to upkeep of documents like compendium, flying training circulars, completion of flying training dossiers briefing, de-briefing, maintenance of dissemination register for information to working engineers and false logging were found.
The Minister, while replying to a question on failure of radar at the Delhi's IGI airport, said, "In the last six months, radar services got disrupted only on two occasions.