#AI-171 Boeing 787 Air Crash : Initial Findings Published…A preliminary investigation report, released by the Aircraft Accident Investigation Bureau (AAIB) of India, gives us the first clear idea of what caused the tragedy. According to the report, the main cause was fuel supply to both engines being accidentally cut off just seconds after takeoff. Without fuel, the engines shut down, and the plane had no power to stay in the air.
Fuel supply to AI171 Dreamliner engines got cutoff 3 seconds after liftoff, plane crashed 29 seconds later..
By Dr. Namrata Mishra Tiwari, Editor India Input.
An ‘X’ Handler Tweets !
India’s AAIB has released its Preliminary Report into the crash of AI flight 171:
The aircraft achieved the maximum recorded airspeed of 180 Knots IAS at about 08:08:42 UTC and immediately thereafter, the Engine 1 and Engine 2 fuel cutoff switches transitioned from RUN to… pic.twitter.com/6HShXOmu0r
— Breaking Aviation News & Videos (@aviationbrk) July 11, 2025
On June 25, 2025, Air India Flight AI-171, a Boeing 787 Dreamliner, took off from Ahmedabad airport around 1:39 PM, heading to London Gatwick. Sadly, within just a minute of takeoff, the aircraft crashed into a hostel building at B.J. Medical College in Ahmedabad. The crash killed over 200 people, including passengers, crew, and people on the ground. Only one passenger survived.
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AAIB Releases 15-page Preliminary Report on Air India Plane Crash. Aviation Minister @RamMNK says on #AhmedabadPlaneCrash , “This is a Preliminary Report. Don’t Jump to Conclusions”
The Aircraft Accident Investigation Bureau (#AAIB) report on the #AirIndiaPlaneCrash, released on… pic.twitter.com/tWP2B5ESGQ
— Surya Reddy (@jsuryareddy) July 12, 2025
#AI-171 Boeing 787 Air Crash
Critical failure midair
The Fuel Control Switches, which regulate the flow of fuel to the engines, had been moved from the “RUN” to the “CUTOFF” position—effectively shutting down both engines mid-air. While the flight crew attempted to restart the engines, they were unable to do so before the aircraft lost altitude and crashed.
Investigators confirmed that the plane reached a maximum altitude of only 625 feet before losing thrust. The Cockpit Voice Recorder (CVR) captured a brief but alarming exchange between the pilots as they tried to understand the sudden loss of power. One pilot was heard asking, “Why did you cut off the fuel supply?” with the other responding, “I did not.”
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#BREAKING:PRELIMINARY REPORT
India’s AAIB confirms both engine fuel control switches on Air India Flight 171 (VT-ANB) were moved from RUN to CUTOFF seconds after takeoff on June 12. This caused dual-engine failure and deployment of the Ram Air Turbine (RAT).Cockpit voice… pic.twitter.com/WnXoZoZjKd
— Turbine Traveller (@Turbinetraveler) July 11, 2025
The crew attempted to restart the engines, but there wasn’t enough time or altitude to do so successfully. The plane lost all thrust and crashed about 36 seconds after becoming airborne.
#AI-171 Boeing 787 Air Crash
A mechanical fault or human error?
The aircraft was 11years old and had recently undergone maintenance. No prior issues were flagged.
At this stage, the report does not conclusively assign blame.
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Here’s the link to the 15 page Preliminary Report on AAIB website. It is on the home page itself.
Preliminary Report VT-ANB.pdf https://t.co/tybhcD51ql pic.twitter.com/NL8GQ4ddHc
— Sanjeev Gupta (@sanjg2k1) July 11, 2025
The AAIB is examining whether the fuel cutoff was caused by Pilot error (accidental switch movement), a technical malfunction, or a possible design flaw in the Boeing 787’s fuel control system.
#AI-171 Boeing 787 Air Crash
Aviation Experts involved
In addition to India’s AAIB, officials from the U.S. National Transportation Safety Board (NTSB), UK Air Accidents Investigation Branch (AAIB-UK), and Boeing are actively participating in the investigation. The black box data, recovered and analyzed in late June, has been critical in understanding the sequence of events.
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The AAIB of India has released the preliminary report of the Air India #AI171 #VTANB
Prima facie the report indicates that the fuel control switch “transitioned” from Run to Cutoff one second apart, when the aircraft moved from ground to air.
The Pilots are heard asking each… pic.twitter.com/EM4JCC7Epc
— Sanjay Lazar (@sjlazars) July 11, 2025
#AI-171 Boeing 787 Air Crash
First-ever fatal crash
This marks the first-ever fatal accident involving a Boeing 787 Dreamliner, a model known for its modern technology and safety record. The findings have triggered renewed scrutiny of cockpit procedures and aircraft system design. India’s Directorate General of Civil Aviation (DGCA) has ordered safety audits of Boeing 787 fleets operating in India, and some Dreamliners were briefly grounded for checks.
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#NewsFatafat | Airline Pilots’ Association slams AAIB’s preliminary report on AI 171 crash, calls out bias towards pilot error, lack of transparency, and exclusion of experienced line pilots from the investigation; demands a fair and fact-based probe into the June 12 tragedy.… pic.twitter.com/BfHtvOMcg7
— ET NOW (@ETNOWlive) July 12, 2025
The final report, expected later this year, will provide detailed conclusions and safety recommendations to prevent similar tragedies in the future.
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