THE AIR INDIA DISASTER AND WHAT WE KNOW...

 

GROK:

The preliminary report on the Air India Flight 171 crash, which occurred on June 12, 2025, in Ahmedabad, India, indicates that the fuel control switches on the Boeing 787 Dreamliner were moved from the "RUN" to the "CUTOFF" position seconds after takeoff, leading to both engines losing power and the subsequent crash that killed 260 people. The Wall Street Journal (WSJ) reported, based on sources familiar with U.S. officials’ early assessment, that the captain may have deliberately moved the fuel switches, with the first officer questioning the action, as captured on the cockpit voice recorder (CVR). However, the preliminary report by India’s Aircraft Accident Investigation Bureau (AAIB) does not assign blame and leaves open several questions about the cause. Below, I explore alternatives to the WSJ’s assumption that the fuel controls being switched off and then on is the sole crux of the matter, considering more complex possibilities based on available information. ### Key Points from the Preliminary Report and Related Sources

1. **Fuel Switches Movement**: - The preliminary report confirms that both fuel control switches moved to the "CUTOFF" position one second apart, starving the engines of fuel, and were later returned to the "RUN" position, initiating an automatic engine relight. One engine was regaining thrust, but the plane was too low and slow to recover.[](https://www.nytimes.com/2025/07/11/world/asia/air-india-crash-report.html)[](https://www.reuters.com/business/aerospace-defense/air-india-cockpit-recording-suggests-captain-cut-fuel-engines-before-crash-2025-07-18/)[](https://www.theguardian.com/world/2025/jul/12/why-did-he-cut-off-what-has-the-report-on-air-india-flight-171-found) - The CVR captures one pilot asking, “Why did you cut off?” and the other responding, “I didn’t,” but the report does not identify who said what. The co-pilot, Clive Kunder, was flying the aircraft, while the captain, Sumeet Sabharwal, was monitoring.[](https://www.bbc.com/news/articles/cx2gy78gpnqo)[](https://www.reuters.com/business/aerospace-defense/air-india-cockpit-recording-suggests-captain-cut-fuel-engines-before-crash-2025-07-18/) - The switches require deliberate action (pulling up to unlock before flipping), designed to prevent accidental activation, suggesting that inadvertent movement is unlikely.[](https://www.bbc.com/news/articles/cx2gy78gpnqo)[](https://www.theguardian.com/world/2025/jul/12/why-did-he-cut-off-what-has-the-report-on-air-india-flight-171-found) 2. **No Mechanical or Maintenance Issues**:

- The preliminary report found no mechanical failures or design flaws in the aircraft or engines, with all airworthiness directives and maintenance requirements met. Air India’s post-crash inspections of fuel switch locking mechanisms on its Boeing fleet found no issues.[](https://www.nytimes.com/2025/07/11/world/asia/air-india-crash-report.html)[](https://www.reuters.com/business/aerospace-defense/air-india-cockpit-recording-suggests-captain-cut-fuel-engines-before-crash-2025-07-18/)[](https://www.theguardian.com/world/2025/jul/17/air-india-finds-no-issues-with-fuel-switches-on-other-boeings-after-crash) - A 2018 U.S. Federal Aviation Administration (FAA) Special Airworthiness Information Bulletin (SAIB) noted that some Boeing 737 fuel control switches had disengaged locking features, a design also used in the Boeing 787-8. However, this was not deemed a safety issue requiring mandatory action, and Air India did not inspect these switches as it was advisory.[](https://www.bbc.com/news/articles/cx2gy78gpnqo)[](https://www.theguardian.com/world/2025/jul/12/why-did-he-cut-off-what-has-the-report-on-air-india-flight-171-found) 3. **Pilot Actions and Context**:

- The WSJ suggests the captain may have intentionally shut off the fuel switches, remaining calm while the first officer panicked. However, Indian authorities and the Federation of Indian Pilots have criticized such claims as speculative and premature, emphasizing the lack of a full CVR transcript and comprehensive data.[](https://www.reuters.com/business/aerospace-defense/air-india-cockpit-recording-suggests-captain-cut-fuel-engines-before-crash-2025-07-18/)[](https://www.theguardian.com/world/2025/jul/17/air-india-finds-no-issues-with-fuel-switches-on-other-boeings-after-crash)[](https://abcnews.go.com/International/air-india-captain-shut-off-fuel-ahead-deadly/story?id=123829589) - Both pilots were highly experienced (15,638 hours for the captain and 3,403 hours for the first officer) and had passed pre-flight health checks. No evidence suggests deliberate malicious intent, and human error seems unlikely given the deliberate nature of the switch operation.[](https://www.aljazeera.com/news/2025/7/17/what-happened-to-the-fuel-control-switches-on-doomed-air-india-flight-171)[](https://www.bbc.com/news/articles/cn9yw0rljwvo)[](https://www.theguardian.com/world/2025/jul/12/why-did-he-cut-off-what-has-the-report-on-air-india-flight-171-found) 4. **Other Observations**:

- CCTV footage showed the deployment of the ram air turbine (RAT), indicating a loss of engine power shortly after takeoff. The plane reached 650 feet before losing altitude, clipping trees and a chimney before crashing into a building.[](https://www.reuters.com/business/aerospace-defense/india-finds-engine-switch-movement-fatal-air-india-crash-no-immediate-action-2025-07-11/)[](https://www.reuters.com/business/aerospace-defense/air-india-cockpit-recording-suggests-captain-cut-fuel-engines-before-crash-2025-07-18/) - No adverse weather, bird activity, or issues with fuel quality were reported. The aircraft’s takeoff weight was within limits, and no hazardous cargo was onboard.[](https://www.theguardian.com/world/2025/jul/12/why-did-he-cut-off-what-has-the-report-on-air-india-flight-171-found) ### Alternatives to the WSJ’s Assumption

The WSJ’s focus on the captain deliberately switching off the fuel controls implies human error or intentional action as the primary cause. However, several alternative or more complex possibilities could explain the incident, either independently or in combination: 1. **Potential Issue with Fuel Control Switch Design or Malfunction**:

- Although the preliminary report and Air India’s inspections found no mechanical issues, the 2018 FAA SAIB raises the possibility of a latent flaw in the fuel control switch locking mechanism. If the locking feature was disengaged or malfunctioned, the switches might have been more susceptible to movement, though this would still require deliberate action to flip both switches within a second.[](https://www.bbc.com/news/articles/cx2gy78gpnqo)[](https://www.theguardian.com/world/2025/jul/12/why-did-he-cut-off-what-has-the-report-on-air-india-flight-171-found) - An independent investigator suggested that if the locking feature was disengaged, a single flip could theoretically shut off the fuel supply, but this remains unconfirmed and would require further analysis of the switch design and crash site evidence.[](https://www.bbc.com/news/articles/cx2gy78gpnqo) - This possibility is complicated by the fact that the switches were moved back to the “RUN” position, suggesting the pilots recognized the issue and attempted to correct it, which might not align with a mechanical failure alone. 2. **Automation or System Interaction Issue**:

- The preliminary report does not mention automation explicitly, but aviation safety experts have suggested that an automation-related issue could have contributed. For example, a misinterpretation of cockpit alerts or an unexpected system response (e.g., erroneous sensor data or automation feedback) might have prompted the pilots to manipulate the fuel switches in confusion.[](https://www.bbc.com/news/articles/cn9yw0rljwvo) - The Boeing 787’s advanced automation systems, including engine control and monitoring, could have presented misleading information or required counterintuitive pilot inputs during a critical phase of flight. The CVR’s brief exchange (“Why did you cut off?”) suggests possible confusion in the cockpit, which could stem from automation rather than a deliberate act.[](https://www.bbc.com/news/articles/cx2gy78gpnqo)[](https://www.bbc.com/news/articles/cn9yw0rljwvo) 3. **Cockpit Confusion or Crew Resource Management (CRM) Breakdown**:

- The CVR indicates a lack of clarity between the pilots about who moved the switches, suggesting a possible breakdown in communication or situational awareness during the high-workload phase of takeoff. The co-pilot was flying, while the captain was monitoring, which could have led to a misunderstanding of actions or responsibilities.[](https://www.bbc.com/news/articles/cx2gy78gpnqo)[](https://www.bbc.com/news/articles/cn9yw0rljwvo) - Human factors, such as stress, fatigue, or distraction, could have contributed, even though both pilots were experienced and passed health checks. For instance, the captain might have misinterpreted a checklist item or alert, leading to an erroneous action that the co-pilot questioned.[](https://www.aljazeera.com/news/2025/7/17/what-happened-to-the-fuel-control-switches-on-doomed-air-india-flight-171)[](https://www.theguardian.com/world/2025/jul/12/why-did-he-cut-off-what-has-the-report-on-air-india-flight-171-found) - The muscle memory of flipping fuel switches (a routine action after landing) could have played a role in an inadvertent action, though the deliberate nature of the switch design makes this less likely.[](https://www.theguardian.com/world/2025/jul/12/why-did-he-cut-off-what-has-the-report-on-air-india-flight-171-found) 4. **External or Environmental Factors Not Yet Identified**:

- While the preliminary report rules out weather, bird strikes, and fuel quality issues, other external factors (e.g., electromagnetic interference, unreported system faults, or subtle environmental conditions) could have indirectly influenced the pilots’ actions or the aircraft’s systems. These are speculative but cannot be ruled out until the final report provides more data.[](https://www.theguardian.com/world/2025/jul/12/why-did-he-cut-off-what-has-the-report-on-air-india-flight-171-found) - Some Indian media reports suggested a possible electrical fire in the tail, but the preliminary report indicates that any fire likely occurred post-impact, not as a cause of the fuel cutoff.[](https://www.bbc.com/news/articles/cn9yw0rljwvo) 5. **Combination of Factors**:

- Most aviation accidents result from multiple contributing factors. A combination of a minor system anomaly (e.g., a faulty switch lock or automation glitch), pilot confusion, and time pressure during takeoff could have led to the sequence of events. For example, a misleading cockpit indication might have prompted the captain to manipulate the switches, followed by a delayed recognition of the error, as evidenced by the switches being flipped back to “RUN.”[](https://www.reuters.com/business/aerospace-defense/air-india-cockpit-recording-suggests-captain-cut-fuel-engines-before-crash-2025-07-18/)[](https://www.bbc.com/news/articles/cn9yw0rljwvo) - The deployment of the RAT and the partial engine relight suggest that the aircraft’s systems responded as designed once the fuel flow was restored, but the low altitude and speed prevented recovery. This points to a rapid sequence of events that likely involved more than a single pilot action.[](https://www.reuters.com/business/aerospace-defense/air-india-cockpit-recording-suggests-captain-cut-fuel-engines-before-crash-2025-07-18/)[](https://www.theguardian.com/world/2025/jul/12/why-did-he-cut-off-what-has-the-report-on-air-india-flight-171-found) ### Critical Considerations

- **Incomplete Information**: The preliminary report is limited, lacking a full CVR transcript or detailed flight data recorder (FDR) analysis. The selective disclosure of the CVR excerpt (“Why did you cut off?”) has fueled speculation, but without time-stamped dialogue and context, it’s unclear whether the pilots’ actions were deliberate, erroneous, or in response to an external trigger.[](https://www.bbc.com/news/articles/cn9yw0rljwvo) - **Speculation and Bias**: The WSJ’s focus on the captain’s actions has been criticized by Indian authorities and pilot groups as premature and potentially misleading. The Federation of Indian Pilots emphasized that assigning blame without comprehensive data undermines the crew’s professionalism.[](https://www.aljazeera.com/news/2025/7/17/what-happened-to-the-fuel-control-switches-on-doomed-air-india-flight-171)[](https://www.theguardian.com/world/2025/jul/17/air-india-finds-no-issues-with-fuel-switches-on-other-boeings-after-crash)[](https://abcnews.go.com/International/air-india-captain-shut-off-fuel-ahead-deadly/story?id=123829589) - **Ongoing Investigation**: The final report, expected within a year, will include detailed FDR and CVR analyses, which may clarify the sequence of events, pilot actions, and any system anomalies. Until then, alternative theories remain plausible but unconfirmed.[](https://www.reuters.com/business/aerospace-defense/india-finds-engine-switch-movement-fatal-air-india-crash-no-immediate-action-2025-07-11/)[](https://www.reuters.com/business/aerospace-defense/air-india-cockpit-recording-suggests-captain-cut-fuel-engines-before-crash-2025-07-18/) ### Conclusion

While the WSJ’s assumption that the captain deliberately turned off the fuel controls points to human error or intent as the crux of the crash, several alternative or more complex possibilities exist. These include potential issues with the fuel switch locking mechanism, automation-related confusion, cockpit miscommunication, or unidentified external factors, potentially in combination. The preliminary report’s focus on the fuel switches moving to “CUTOFF” is a critical data point, but it does not conclusively explain why or how this occurred. The deliberate design of the switches and the pilots’ experience make accidental movement unlikely, but automation issues or momentary confusion cannot be ruled out. Until the final report provides a full CVR transcript and FDR data, these alternatives remain speculative but plausible, and the WSJ’s narrative should be viewed cautiously as one possible interpretation among others.[](https://www.nytimes.com/2025/07/11/world/asia/air-india-crash-report.html)[](https://www.bbc.com/news/articles/cx2gy78gpnqo)[](https://www.reuters.com/business/aerospace-defense/air-india-cockpit-recording-suggests-captain-cut-fuel-engines-before-crash-2025-07-18/)