BREAKING: Fuel-Cut Switches on Air India Flight 171 Manually Flipped 3 Seconds Apart — FAA Advisory Ignored Since 2018. Sabotage, Pilot Error, or Something Worse?

On June 12, 2025, Air India Flight 171, a Boeing 787-8 Dreamliner, crashed just 30 seconds after takeoff from Ahmedabad’s Sardar Vallabhbhai Patel International Airport, en route to London’s Gatwick Airport. The disaster killed 241 of the 242 passengers and crew aboard, along with 19 people on the ground, marking it as one of India’s deadliest aviation tragedies in decades. A preliminary report by India’s Aircraft Accident Investigation Bureau (AAIB), released on July 11, 2025, revealed a chilling detail: the fuel-cutoff switches for both engines were manually flipped to the “CUTOFF” position three seconds apart, just seconds after takeoff, starving the engines of fuel. This action, followed by a failed attempt to restore power, led to the crash. Compounding the mystery, a 2018 FAA advisory warning of potential issues with the fuel switch locking mechanism was ignored by Air India, as it was not mandatory. The question now looms: was this sabotage, pilot error, or something more sinister? This article delves into the evidence, the ignored advisory, and the theories swirling around this baffling disaster.

The Crash and the Fuel Switch Mystery

Flight 171, carrying 230 passengers and 12 crew members, took off at 08:08:42 UTC, reaching a maximum airspeed of 180 knots. Three seconds later, at approximately 625 feet altitude, the fuel-control switches for both GE GEnx-1B engines transitioned from “RUN” to “CUTOFF,” one after the other, with a three-second gap, according to the AAIB’s preliminary report. This action, typically performed only after landing, immediately cut fuel flow, causing both engines to lose power. Cockpit voice recordings captured a moment of confusion: one pilot asked, “Why did you cut off?” to which the other replied, “I didn’t.” The co-pilot, Clive Kunder (32, with 3,403 flight hours), was flying the aircraft, while the captain, Sumeet Sabharwal (56, with 15,638 flight hours), was monitoring.

Within 10 seconds, the pilots moved the switches back to “RUN,” triggering an automatic engine relight sequence. Engine 1 began recovering thrust, but Engine 2 failed to stabilize. The Ram Air Turbine (RAT), a backup power system, deployed automatically, indicating a total loss of engine power or hydraulic pressure. Despite a “MAYDAY” call at 08:09:05 UTC, the aircraft crashed into a densely populated area near the airport just 30–40 seconds after takeoff, leaving only one survivor, Vishwash Kumar Ramesh, a 40-year-old British national.

The Ignored FAA Advisory

A critical piece of the investigation centers on a 2018 FAA Special Airworthiness Information Bulletin (SAIB NM-18-33), which flagged potential disengagement of the fuel-control switch locking mechanism on Boeing aircraft, including the 787-8. The bulletin noted that switches could move inadvertently if the locking feature was disengaged, potentially leading to unintended engine shutdowns. These switches, designed with a lift-and-shift motion and protective guards, require deliberate action to operate, making accidental movement unlikely. However, the advisory was not mandatory, and Air India did not conduct the recommended inspections, a decision now under scrutiny.

The AAIB report confirmed that the throttle control module on the aircraft (VT-ANB) was replaced in 2019 and 2023, but these changes were unrelated to the fuel switches. No defects in the switches had been reported since 2023, and the FAA did not classify the issue as an “unsafe condition” requiring an Airworthiness Directive (AD). Still, experts like Capt. Saurabh Bhatnagar, a Boeing 787 instructor, emphasize that the switches’ design—spring-loaded, gated, and manually protected—makes unintentional operation nearly impossible under normal conditions.

Theories: Sabotage, Pilot Error, or Mechanical Failure?

The three-second gap between the fuel switch movements has fueled intense speculation. Several theories have emerged, each with significant implications:

1. Pilot Error

The preliminary report’s focus on the manual movement of the switches has led some to suspect pilot error. The cockpit voice recording suggests confusion, with neither pilot claiming responsibility. Aviation expert Shawn Pruchnicki from Ohio State University noted that if a pilot moved the switches, intentionally or not, it raises the question: “Why?” The switches are located on the center pedestal, far from the landing gear lever, ruling out a “muscle memory” error where a pilot might mistakenly reach for the wrong control. The three-second gap aligns with the time needed to deliberately lift and flip each switch, but no checklist or emergency procedure calls for this action during takeoff.

Fatigue is another consideration. An op-ed in Airways Magazine suggested that a pilot, possibly experiencing microsleep or disorientation, could have toggled the switches inadvertently. However, both pilots were medically cleared and well-rested, according to the AAIB, and the deliberate nature of the switch design makes accidental activation unlikely. U.S. aviation expert John Nance told Reuters, “No sane pilot would ever turn those switches off in flight,” especially during climb, underscoring the improbability of error without extenuating circumstances.

2. Sabotage

The possibility of intentional action has not been ruled out, though it remains controversial. Posts on X, including one from @AbdullahhAdam on July 13, 2025, claimed the switches were “deliberately flipped,” suggesting human intent. Another post by @rohan18april on July 12 raised the specter of sabotage, citing the switches’ design to resist accidental movement. The cockpit audio, where one pilot questions the other, adds to the intrigue, as does the absence of mechanical failure evidence. However, the pilots’ records—Sabharwal was an experienced instructor—show no indication of malicious intent. A deliberate act would require motive, which investigators have not yet identified. The AAIB has found no evidence of sabotage, but the theory persists in public discourse, fueled by the lack of clear answers.

3. Mechanical or Electronic Fault

Some experts argue that a mechanical or electronic issue could explain the switch movements. A July 13 article from The Federal suggested that the three-second gap is too precise for human action, pointing to a potential fault in the Full Authority Digital Engine Control (FADEC) system or the switches themselves. Air Marshal (Retd) M. Matheswaran told The Federal, “There is no possibility of inadvertent tampering… this points clearly to an internal mechanical or electronic fault.” The 2018 FAA bulletin lends credence to this theory, as a disengaged locking mechanism could allow switches to move under vibration or other forces, though no such incidents have been recorded in 787 operations. The absence of urgent advisories from Boeing or the FAA post-crash suggests that a mechanical flaw is not the leading hypothesis, but investigators are still examining the throttle quadrant and switch components.

4. Something Worse?

The phrase “something worse” in public discussions hints at systemic issues, such as maintenance oversights or broader design flaws. Air India’s failure to act on the 2018 FAA advisory has drawn criticism, with a Lufthansa engineer telling The Federal, “This wasn’t just a known issue. It was a known hazard.” The crash has also reignited concerns about Boeing’s safety record, following issues with the 737 Max and a 2025 737 Max mid-flight panel blowout. While no significant faults have been found in the 787’s engines or systems, the lack of mandatory inspections for the fuel switches raises questions about regulatory oversight and airline compliance.

Investigation and Public Reaction

The AAIB’s 15-page preliminary report, released on July 11, 2025, provides a timeline but no conclusions, deepening the mystery. The U.S. National Transportation Safety Board (NTSB) and FAA are assisting, with a final report expected within 12 months. The lack of immediate recommendations for 787 operators or GE engine manufacturers suggests that investigators do not yet see a systemic issue. However, the absence of transparency has frustrated victims’ families, like Imtiyaz Ali, who lost four relatives and told the BBC the report “reads like a product description.”

Public sentiment on X reflects intense speculation, with posts like @avs_IND on July 13 emphasizing the manual nature of the switches and ruling out software interference. Others, like @RJainaviation, cited expert David Learmount suggesting a deliberate act or incorrect action due to muscle memory confusion. The Airline Pilots’ Association of India has rejected premature blame on the crew, urging a fact-based inquiry.

Implications and Next Steps

The Air India Flight 171 crash has sent shockwaves through the aviation industry, raising questions about cockpit design, pilot training, and maintenance protocols. The three-second gap between switch movements suggests a deliberate or sequential action, but the pilots’ denial and the ignored FAA advisory complicate the narrative. Boeing and Air India have expressed solidarity with the victims’ families, with Boeing stating it continues to support the investigation. The sole survivor, Vishwash Kumar Ramesh, described the plane feeling “stuck in the air” before the crash, a haunting account of the final moments.

As investigators analyze wreckage, flight data, and switch components, the focus remains on three possibilities: human error, intentional action, or a mechanical flaw. The 2018 FAA advisory, though non-mandatory, may prompt renewed scrutiny of fuel switch designs across Boeing models. For now, the tragedy underscores the need for rigorous safety checks and transparent investigations to prevent future disasters and provide closure to the families of the 260 lives lost.