Air India Express crash: Pilots could have tried to take off after deep landing, consultants say | India News

MUMBAI: Photographs of the wreckage of the ill-fated Air India Express Boeing 737, particularly these of the cockpit control panels and aircraft engines, counsel the pilots tried a take-off or go-around after a deep touchdown on the tabletop Calicut runway, mentioned a senior pilot.
However, that’s nonetheless a idea, say consultants. The accident may have occurred as a result of different elements, particulars of which can emerge solely within the investigation report.
“The wreckage of the cockpit reveals the throttle within the totally ahead place, which is the take-off/go-around place. The spoilers are retracted from the place of the velocity brake lever, whereas in an plane attempting to come back to a halt after landing the spoilers ought to have been totally prolonged,’’ mentioned an aviation supply.
Spoilers are panels on the highest of the wings which when raised or deployed, scale back the velocity of the plane. However, the flaps (panels mounted on the rear fringe of the wing, which will be raised or lowered from the cockpit to extend elevate—the drag produced by the wings) are nonetheless in touchdown configuration. “A attainable rationalization is that the pilots may need forgotten to place the flaps in take off/go-around configuration. Flaps in touchdown configuration can hinder the makes an attempt to elevate off,’’ mentioned an engineer.
If the accident investigation report reveals that the pilots did try and take off once more after the brakes had been utilized submit landing, then the Calicut crash can have numerous similarities with the 2010 crash of an Air India Express flight in Mangalore. The similarities can be within the collection of actions taken by each units of pilots submit the late landing on tabletop runways. An plane can actually take off go round safely submit landing, offered the motion to take action is taken swiftly after landing and most significantly, earlier than motion to decelerate the velocity of the plane velocity—like making use of brakes—is taken.
Unlike the Mangalore crash, within the case of the Calicut accident, the plane didn’t catch hearth submit impression. It was speculated that the AIX pilots had most likely switched off the gasoline provide to chop off the engines and forestall a attainable hearth. “But within the cockpit pictures, the gasoline management switches will not be within the cut-off place, which implies the engines had been operating on impression,’’ the supply aviation added. Also, not like the Mangalore crash, the place the Boeing 737 plane fell right into a 300-feet gorge off the runway finish, in case of Calicut the terrain drops to solely 35-40 toes, which might clarify the comparatively decrease casualties, he added.
The Air India Express pilots apparently missed the landing zone and landed about 3,000 toes deep into the Calicut runway in tailwinds. “But the runway is lengthy sufficient and so a deep landing by itself doesn’t completely clarify why the plane went off the tabletop runway to fall off the sting and crash,’’ mentioned a senior commander. “There needs to be a number of different elements for such an accident to happen,’’ he added.
Irrespective of what the investigation throws up, what must be highlighted right here,s ay aviation consultants, is that pilots take split-second selections throughout a touchdown. The last touchdown section which begins after an plane has crossed the runway threshold is accomplished in lower than 15 seconds. During this time, the plane crosses the runway threshold, does a touchdown flare (floats over the runway to cut back descent fee and obtain a easy landing) and touches down; the sequence contains making use of totally different modes of braking to make sure the plane systematically decelerates and involves a halt earlier than the tip of the runway.

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