Patna, July 21 :     Less than a week after the Alliance Air crash, civil aviation minister Sharad Yadav came here on his second visit to scrutinise the facilities at Patna airport and inspect the crash site. The Airports Authority of India, too, has started a process to restructure the instrumental landing system (ILS) here. Patna airport has a two-way ILS which beams light to guide the landing of aircraft on its two runways. The ILS line would now be redrawn, said AAI director P.K. Chowkiwal. However, he denied that the change had anything to do with the crash and said it was due anyway. The airport was described as a virtual disaster zone by the B.C. Jain Committee, which looked into the safety aspect of the country's airports. The crash has now brought the air traffic control and other systems here under the purview of a judicial inquiry. Experts said the AAI was changing the beam pattern because pilots had been facing difficulty in making full use of the runways. Though the total length of the runways is 7,500 feet, only 6,400 feet are used because trees and highrises around the landing strip pose a hurdle. The changed ILS is expected to give pilots more room for manoeuvre. The ILS at Patna had become obsolete, Chowkiwal said. Sharad said he had directed Indian Airlines to soon go shopping for new aircraft, organise technology update and raise revenue. He admitted that there had been no expansion of the airline since 1985 and the aviation ministry had to bear the bulk of the expenditure on maintenance of aeroplanes. 'There is no doubt that the aircraft in the Alliance fleet are old. New aircraft would certainly have some advantage in terms of maintenance,' Sharad said. But, he added, 'there has been a little insincerity in the maintenance of the existing aircraft'. The minister spoke to senior AAI officials and engineers studying the broken components of the destroyed plane. The 12-man engineering team is close to finalising its report on the condition of the plane's parts. The report will be submitted to the court of inquiry. But it is feared that some evidence might be lost because of two days of rain. 'We have already seized the essential bits, including the black box and the cockpit voice recorder. But the black box will not be decoded till the court begins inquiry. We want to maintain transparency at all levels of inquiry,' said Sharad. He said he would talk to the chief justice of Patna High Court and request him to begin the inquiry as soon as possible. The minister refused to stop Boeing 737 flights following this accident and denied that there was any major snag in the aircraft carrying victims' bodies from Patna to Calcutta. He reiterated that families of those killed in the Patna colony would get the same compensation as the passengers' kin. The injured, too, would be entitled to a compensation of Rs 2 lakh, besides having all their medical expenses paid for. Stating that he was aware of the Jain panel report, Sharad said: 'The technological aspects of airports would undergo an overhaul. Every recommendation will be paid heed to.' The Jain report underlined that airports in India had outdated technology and inadequate security equipment. There was also a lack of co-ordination between the various units to ensure fool-proof security either of the aircraft or of the airport premises, it said.