Originally Posted by dylan
Stay on topic please. This is a thread to discuss the crash of IX. Thank you.
Sure. Thats better:
Three days after the Mangalore air tragedy, CNN-IBN takes a glimpse into what happened seconds before the crash. Exclusive details of the last conversation between the pilot and the Air Traffic Control suggest there was absolute calm right before the disaster struck.
ATC: confirm establish on ILSIX 812 Commander: establish on ILS
ATC: Report 5 DME
IX 812 Commander: Roger 5 DME
ATC: Express India 812 cleared to land runway 24... wind calm
IX 812 Commander: Roger, cleared to land
ATC: Express India 812 landed 0032... backtrack at the end of runway... vacate runway via taxiway delta and (no acknowledgment from the pilot... silence used radio chatter).
The commander goes silent for ever. ATC just sees smoke at the end of the runway. This was one of the worst aviation disasters.
The last communication between IX 812 and ATC suggests there was nothing amiss in the standard parameters and conditions for landing to the extent that the ATC didn't even realise it had crashed or violated Standard Operating Procedure.
Souce: Indian news web site.
The Black Box of ill fated Air India Express IX 812 that crashed claiming lives of 158 passengers on May 22, near Mangalore International Airport was found today.
The investigating team of the Directorate General of Civil Aviation (DGCA) found the vital Digital Flight Data Recorder (Black Box) in the midst of completely burnt aircraft.
The team has already recovered Cockpit Voice Recorder (CVR) of the aircraft and Digital Flight Data Acquisition Unit (DFDAU) from the site.
Souce: An Indian Daily ( Black Box of IX 812 found
Pilots of the ill-fated Air India Express IX 812 possibly made one last attempt to fly back to safety after realising that they had overshot the runway and would not be able to stop in the available length.
But unfortunately for the 158 passengers who perished in the crash, including the crew of six, the Boeing 737-800 was simply too fast to stop in time and not left with enough length to lift off again. TOI had mentioned this as one of the possible reasons for the crash on Sunday.
Highly placed sources said the thrust lever of the plane was at full, which indicates that the plane was trying to take off. Apparently, when the lever was suddenly pushed to full, a tyre burst under pressure. This is what caused the plane to swerve and hit the localiser.
Highly placed sources hinted at this strong possibility after examining the crash site and aircraft wreckage in Mangalore.
From initial observations, it seems that the aircraft was making a soft landing and overshot the touchdown point by hundreds of feet as it glided over the runway.
After touching down, the pilots — being aware of Mangalore airstrip and the valley ahead — must have realised that they could not stop in time.
They could have possibly tried to lift off again but even that could not happen due to short space left to do so. They and the wing hitting localiser equipment structure near the runway, said sources.
A Boeing 737-800 can stop in 4,500-5,000 feet. The Mangalore runway is 8,000 feet long and even if the pilots had overshot the touchdown point by 2,000 feet, there was enough length left to stop. So very initial observations hint at the pilots attempting to take off again, said sources. The impression also comes from the massive damage inflicted on the wing that hit the localiser.
This wing and its engine separated from the main aircraft body instantly.
The other engine also got seconds later separated from the other wing and was found quite far away, indicating that it was having substantial power.
Meanwhile, aviation minister Praful Patel said the cause of the accident will be known only after the Directorate General of Civil Aviation (DGCA) concludes its probe. "The probe will show what went wrong. I cannot pre-judge the probe finding. If some corrective steps are needed, they'll be taken and if someone is found responsible for the mishap, we'll take action," he said.
What's intriguing authorities is that the runway has been used for years without any problem and that the aircraft — just 2.5 years old was being piloted by experienced pilots. A runway's friction coefficient has to be between 0.5 and 0.8.
The Airports Authority of India's last test had found a coefficient of 0.65 for Mangalore's new runway.
Source : Times Of India ( excerpts )
Now that FDR and CVR have been found and some US officials have arrived we can hope for some leads...