A Second-by-Second Timeline of How Air Indias Dreamliner Flight Ended in Disaster

New Delhi, July 12 (PTI) Air India flight of London AI171, 32 seconds after taking off from Ahmedabad on June 12, fell to both engines after the supply of fuel to both engines. A preliminary report found that mixed pilots could not restore pushing on time.

Here is a look at the sequence of events that cause a deadly accident:

11:17 hours IST: Air India Dreamliner VT-Anb lands in Ahmedabad from New Delhi, the flight is working as AI423

13:13:00 Time: Airplane requirements and starting

13:13:13 Time: ATC Approved Return

13:16:59 Time: ATC Approved Start.

13:18:38 Time: Aircraft Leaving Ahmedabad’s Sardar Vallabhbhai Patel International Airport.

13:19:12 Time: ATC was questioned if the plane requires the full length of the runway. The plane confirmed the requirement of the runway 23.

13:25:15 hours: air traffic control (ATC) aircraft requesting a taxi permit

13:26:00 HOUR: Taxi roads via R4 Aircraft 23 Taxis, withdrawn and ranked for take -off

13:32:03 Time: Aircraft transferred from the ground to tower

13:33:45 Time: 23 Instructions on the runway

13.37: 37 hours: ATC, 23 runs off the runway

13.37: 37 hours: take -off roll begins

13:38:39 Time: Start from the runway

13:38:42 Time: Maximum 180 knot speed reached

Immediately, both the engine 1 and the engine 2 fuel cutting switches pass from the run to the cutting positions with one second intervals. As the fuel supply is cut, the motors begin to slow down.

Ram Air Turbine (Rat) was deployed immediately after the departure during the first climb.

One pilot asks the other why he cuts fuel. Other answers he didn’t do

13:38:47 Time: Both the motor N1 and N2 fall below the minimum empty speed. The pump of the rats begins to provide hydraulic power.

13:38:52 Time: Motor N1 Fuel Cutting Key will run from the slaughter

13:38:56 Time: Motor N2’s fuel cutting key is resting until the operation

Both engines start to heal the Relign and the motor 1. Motor 2 cannot reverse slowing down

13:39:05 Time: One of the two pilots call for “Mayday, Mayday, Mayday”

13:39:11 Time: Data Record stops from the plane stops

13:44:44 hours: Fire tenders are separated from the airport facilities for recovery and fire brigade