New Delhi, India – Just a few moments before Life -threatening air India crash On June 12, the fuel-control switch of the Boeing 787 Dreamline in Cockpit mysteriously went into a “cutoff” position from “Run”, Inquisition It appeared in the disaster.
Flipping on the cutoff cuts the engine almost immediately. An investigation report by the Indian Airlines Examination Bureau (AAIB) on Saturday morning found that both engines were closed in a second space, which has led to immediate height loss.
The report does not conclude any reason for the switch of Air India’s flight 171 crash or independent fault to the Gatwick airport in London.
Instead, the mystery of what caused the crash to the new details arising from the report with the voice recording of the cockpit seems to have increased.
The same is found in the report and what we know what the last minute before the aircraft crashes.
What happened on June 12?
On June 12, 13:38 (08:08 GMT), Dreamliner left Ahmedabad on the board with 230 passengers, 10 cabin crews and 2 pilots.
Less than 40 seconds, the plane lost both engines in the initial climb.
7 787 In the first such incident of Dreamline, the plane crashed into the city’s densely populated suburbs and the structure of the adjoining structure.
The aircraft broke the plane by igniting the fire that destroyed parts of five buildings. One of the people sitting on the plane was killed. The The sole read Vishwas Kumar was Ramesh, who was a 40 -year -old British citizen of Indian origin.
About 19 people were killed and 67 were injured on the ground.
What was exposed in the investigation?
AIBI, under the Ministry of Civil Aviation, has been leading the inquiry into the world’s most fatal aviation accident in a decade. Experts from Boeing and participants in the United States and United Kingdom are also involved in the inquiry.
According to the preliminary report, the aircraft was considered airplane to a valid plane valid its air -class review certificate by 2026. Regular maintenance was done and no dangerous thing was sitting.
However.
Air India crash reports states that the Boeing 7 737 aircraft operators reports have been found that the fuel-control switch has been found installed with their locking mechanisms.
Air India told the investigators that no inspection was conducted while responding to this SAIB, as compliance was not compulsory.
The report states that the throttle control module of the plane was changed in 2019 and again in 223. However, the replacement was not related to the fuel-control switch and no flaws were reported from the Since from the Since, the report said.
The main system, such as the RAM Air Turbine (RAT) and the Assistant Power Unit (APU), tried to recovery, but only the partial engine was released before the aircraft crashed.
What does the audio recording in the cockpit reveal?
After a short time of the techoff, the two engines are closed almost at the same time, as the fuel control was uselessly “cutoff” from the “Run”.
The cockpit voice recording caught a pilot another pilot, “Why did you cut it?”
The second pilot replied that he did not.
The pilots tried to recover the control quickly: the fuel switches returned to the “run”; RAM air turbine (rats) were deployed; And the Assistant Power Unit (APU) self-launched.
According to the report, the engine 1 started refitting, but the engine 2 failed to get 2 again. In a few seconds of the effect of the effect, the scared “Made Mede Maid“The call was broadcast.
What observing the air traffic control?
The Air Traffic Control Officer in Ahmedabad did not receive a response after the Medie call sign, but the airport’s border was seen collapsing.
Immediately after the lift-off at the CCTV footage at the airport, the plane’s RAM air turbine (rat) was deployed. The aircraft then started losing height before crossing the wall of the airport perimeter.
The report does not prescribe whether the fuel-switch shutdown was mechanical or accidental. The inquates from the cockpit have not yet been recording voice recording-voice recording-deduction.
Who was the pilot?
Captain 56-year-old Pilot-in-Kamand (PIC) captain Sumit Sahawal had a wide range of 5, 6388 total flight hours, including 59 6 hours, including 59 6 hours, of which, 660 hours as PIC.
The co-pilot or the first officer was a clive horoscope. The 32-year-old boy had deposited 3,403 flying hours with 1,128 hours on B787, as all co-pilot. Its support included PIC and A320 and B787 as CO -Palot and C 172 and PA -34 and B787.
On the day of the accident, Kundar was a pilot flying that was flying, while Sabarwal worked as a pilot monitoring.
This is the second by-second timeline of the last moments of 171:
08:07:33 (GMT): Ahmedabad Cleaned for Techoff since Runway 23.
08:07:37: The aircraft starts with a takeoff roll.
08:08:33: The aircraft reaches V1 (153 knots).
08:08:35: The aircraft receives VR (155 knots) for rotation.
08:08:39: Lift-off registered.
08:08:42: Airplane peak at a speed of 180 knots recorded at the maximum of the aircraft; Both engine-fuel switches suddenly occur at the “cutoff”.
08:08:47: Lost engine power; Deployed rats to provide emergency hydraulics.
08:08:52: The engine 1 fuel switch returned to the “run”.
08:08:54: APU begins to open the inlet door (Auto-start initiation).
08:08:56: Engine 2 fuel switch also went to the “run”.
08:09:05: The pilot transmit “Maid Mede Made”.
08:09:11: Record the final data; The aircraft hit the ground.
According to a Saturday report, at this stage of inspection, airlines or engine manufacturers do not need to take any action about Boeing 787-8 aircraft or GENX -1B engine. Further investigation is underway.
