Air India Plane Crash Pilot – Cause Theories and Updates

Air India Flight 171 crashed moments after takeoff from Ahmedabad on June 12, 2025, killing 241 of the 242 people aboard. The Boeing 787-8 Dreamliner lost thrust in both engines when fuel control switches moved to the CUTOFF position seconds into the flight, triggering a catastrophic sequence that ended in the B.J. Medical College campus according to Britannica.

Investigators from India’s Aircraft Accident Investigation Bureau (AAIB) have released preliminary findings pointing to deliberate pilot action, though competing theories involving software malfunction and electrical failure continue to circulate. The crash has reignited debates about aviation safety protocols and pilot monitoring systems in modern commercial aircraft.

Seven months after the tragedy, the final report remains pending. Conflicting accounts from cockpit voice recordings and technical analyses have created a complex picture of the flight’s final 32 seconds, leaving families and aviation experts demanding definitive answers about whether human error, mechanical failure, or intentional sabotage caused India’s deadliest aviation disaster in decades.

What Caused the Air India Flight 171 Crash?

Critical Findings

• Fuel switches moved to CUTOFF approximately three seconds after liftoff
• Captain Sumeet Sabharwal allegedly identified as operator of switches by Italian media
• Cockpit voice recording captured accusatory exchange between pilots
• Ram air turbine deployed automatically 5 seconds after first switch movement
• FADEC systems attempted automatic engine restart after switches returned to RUN
• Competing theories include software malfunction and electrical overload
• Final report not yet released; investigation continues

Latest Updates on Air India 171 Crash

The AAIB preliminary report released on July 12, 2025, established that both engines lost thrust after their fuel control switches were manually moved to the CUTOFF position according to Wikipedia. Flight recorder data confirmed the switches were turned back to RUN approximately 10 and 14 seconds after the initial cutoff, triggering automated restart sequences by the Full Authority Digital Engine Control (FADEC) systems.

Competing Theories on Causation

Italian newspaper Corriere della Sera reported that investigators concluded Captain Sumeet Sabharwal likely intentionally moved the switches to cut off fuel, citing the cockpit voice recording where one pilot asked why the other had “cut off” while the other denied responsibility.

Alternative analyses propose a FADEC software fault caused the initial cutoff, with water ingress into the aft electronics bay potentially triggering automated systems to cut fuel according to technical consultants. Proponents of this theory argue that the pilot’s subsequent switch movements represented proper corrective action rather than the correction of an intentional error.

Air India Flight 171 Crash Report and Findings

AAIB Preliminary Findings

The Aircraft Accident Investigation Bureau’s preliminary report, released one month after the crash, remains the only official documentation available from Indian aviation authorities. The report documented the precise sequence of switch movements and engine responses, though it stopped short of assigning definitive blame for the initial cutoff action.

Flight data revealed the aircraft struck a tree initially before the tail impacted the top of the campus mess building with wings level and the nose pitched up approximately eight degrees. The empennage detached upon impact with the structure.

Audio Evidence from Cockpit

The cockpit voice recorder captured a critical exchange during the emergency. One pilot questioned why the other had cut off the fuel, receiving a denial in response. This conversation occurred as the aircraft lost altitude with both engines failing to produce sufficient thrust for continued flight.

Number of Deaths in Air India Flight 171 Crash

The crash killed 241 of the 242 people on board, making it one of the deadliest aviation accidents in recent Indian history. The sole survivor, a passenger seated near the rear of the aircraft, was pulled from the wreckage at the B.J. Medical College campus with critical injuries.

The aircraft crashed 1.7 kilometers from the runway threshold near Sardar Vallabhbhai Patel International Airport, leaving insufficient time or altitude for the pilots to execute a return-to-field maneuver despite their attempts to restart the engines.

Timeline of Air India Flight 171 Crash and Investigation

1. June 12, 2025, takeoff from Ahmedabad — Flight 171 departs Sardar Vallabhbhai Patel International Airport
2. Three seconds after liftoff — Fuel control switches moved from RUN to CUTOFF
3. Five seconds post-cutoff — Ram air turbine deploys automatically
4. Ten seconds after first cutoff — First fuel switch returned to RUN position
5. Fourteen seconds after first cutoff — Second fuel switch returned to RUN
6. Twenty-three seconds after first cutoff — Mayday call issued reporting loss of thrust
7. Thirty-two seconds after takeoff — Cockpit recordings end; impact with B.J. Medical College campus
8. July 12, 2025 — AAIB releases preliminary investigation report
9. February 2026 — Italian media reports allege intentional pilot action

Confirmed Facts vs Ongoing Debate

Context and Pilot Blame Controversy

The investigation has generated significant controversy regarding pilot accountability in modern aviation incidents. While some reports suggest Captain Sabharwal deliberately cut fuel supplies, family members and alternative aviation experts have challenged this narrative, pointing to potential mechanical failures in the Boeing 787’s electronic systems according to aviation safety databases.

The case highlights tensions between human factors investigation and technical failure analysis in aviation safety protocols. Similar incidents involving Flights to Australia from UK and other long-haul routes have prompted renewed scrutiny of fuel switch designs and cockpit resource management procedures.

Key Quotes and Sources

The cockpit voice recorder captured the final exchange between the pilots as the emergency unfolded. One pilot was heard asking, “Why did you cut off,” while the other denied responsibility, according to the AAIB preliminary report.

“The first fuel switch returned to RUN approximately 10 seconds after moving to CUTOFF, followed by the second switch about 4 seconds later.”

— Aircraft Accident Investigation Bureau, Preliminary Report, July 2025

Alternative aviation analysts have questioned the intentional action theory. Technical consultant Patrick Lockerby argued that water ingress into the aft electronics bay and lithium-ion battery caused automated systems to cut fuel, suggesting the pilots were responding to system failures rather than creating them.

Investigation Status and Next Steps

The Aircraft Accident Investigation Bureau continues its investigation with the final report pending. Aviation safety experts anticipate the report will address the competing theories of intentional action versus software malfunction that have dominated technical discussions since the preliminary findings were released according to international aviation standards.

Regulatory authorities have not yet announced specific safety mandates pending the final conclusions. The aviation community awaits definitive rulings on whether Captain America Brave New World represents isolated human factors or systemic technical vulnerabilities requiring fleet-wide inspections of Boeing 787 fuel control systems.

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