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The Kozhikode International Airport located at Karipur is not safe for the landing of flights in rainy season, according to an air-safety expert, who had warned the aviation ministry and the civil aviation regulator about this in 2011. 

The warning was particularly about the dangers of permitting passenger aircraft to land on runway 10 of the airport during rains and unfavourable wind conditions. 

Nine years later, on August 7, 2020, the warning became a reality when an Air India Express pilots landed in tailwind conditions and the aircraft overshot the tabletop runway to drop off the end and crash.

 “An aircraft landing on runway 10 in tailwind will experience poor braking action due to heavy rubber deposits … All such flights … are endangering the lives of all on board,’’ said Capt Mohan Ranganathan, in a letter sent on June 17, 2011 to then director general of civil aviation Bharat Bhushan and Nasim Zaidi, chairman of a civil aviation safety advisory committee, which was formed after the May 2010 Mangaluru air crash which killed 158 people.

“My warning issued after the Mangaluru crash was ignored. It is a table-top runway with a down slope. The buffer zone at the end of the runway is inadequate,” Capt Ranganathan said. Given the topography, he pointed out, the airport should have a buffer of 240m at the end of the runway, but it only has 90m (which the DGCA had approved). “Moreover, the space on either side of the runway is only 75m instead of the mandatory 100m,” he added.

Capt Ranganathan said there is no guideline for operations on a table-top runway when it is raining. “Runway 10 approach should not be permitted in view of the lack of runway end safety area (RESA) and the terrain beyond the end of the runway. RESA of 240m should be immediately introduced and runway length has to be reduced to make the operations safe,” his letter said.

If an aircraft is unable to stop within the runway, there is no RESA beyond the end. The ILS localiser antenna is housed on a concrete structure and the area beyond is a steep slope. “The Air India Express accident in Mangalore should have alerted AAI to make the runway conditions safe. We have brought up the issue of RESA during the initial Casac-sub group meetings. We had specifically mentioned that the declared distances for both runways have to be reduced in order to comply with ICAO Annex 14 requirement,” Capt Ranganathan said.

He said the condition of the runway strip was known to DGCA teams that have been conducting inspection and safety assessments. “Have they considered the danger involved? Did the DGCA or the airlines lay down any operational restrictions or special procedures?”

The letter also refers to Approach and Landing Accident Reduction (ALAR) training, which is supposed to be mandatory before every monsoon, but airlines don’t follow it, he said. “70% of accidents take place during approach and landing and that is why this training is essential,” he added.

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New Delhi, Jul 30: Even as COVID-19 cases continue to surge in various parts of India, more than 1 million people have recovered and discharged till now, informed Rajesh Bhushan, Secretary, Ministry of Health, here on Thursday.

"More than 1 million people have recovered from COVID-19 in the country. This landmark recovery has been achieved because of the selfless work and dedication of our doctors, nurses and frontline workers," Bhushan said at a press conference.

Giving the number of cured persons, Bhushan said, "More than 1,020,000 patients have recovered. They have been discharged. It is a great achievement."

He said, "The recovery rate has shown positive trends. It was 7.85 per cent in April and today it is 64.4 per cent, which is another heartening news which tells us that whatever battle is put by the Union government in collaboration with state governments is showing results."

"Sixteen states of the country have a recovery rate that is more than the national average. Of these, Delhi has a recovery rate of 88 per cent, Ladakh 80 per cent, Haryana 78 per cent, Assam 76 per cent, Telangana 74 per cent, Tamil Nadu & Gujarat 73 per cent, Rajasthan 70 per cent, Madhya Pradesh 69 per cent and Goa 68 per cent," Bhushan said.

He said effective clinical management lead to a decrease in case fatality rate. In June it was 3.33 per cent and now 2.21 per cent.

Bhushan said the case fatality rate in India today is 2.21 per cent and it's among the lowest in the world. Twenty-four states and Union Territories have lesser fatality rate than that of the country.

Herd immunity in a country of the size and population of India can not be a strategic option. It can only be achieved through immunisation.

"Over 18,190,000 tests have been conducted in the country including RT-PCR and rapid antigen tests. There has been a week-on-week increase in average tests per day. India is conducting 324 test per 10 lakhs population per day," Bhushan said.

He added, three vaccine candidates, are in phase 3 clinical trial. These three are in the US, UK and China. In India, two indigenously developed vaccine candidates are in phase I and II of clinical trials. 

Trial of the first vaccine involves 1,150 subjects at eight sites, second on 1,000 subjects at five sites.