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Air India AI-171 Crash: Initial Findings and Safety Implications

Preliminary report on the Air India crash near Ahmedabad highlights domestic black box analysis, safety challenges, and regulatory implications.

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Air India AI-171 Crash: Preliminary Findings and Implications for Indian Aviation Safety

The crash of Air India flight AI-171 on June 12, 2025, near Ahmedabad, Gujarat, stands as one of the most tragic aviation incidents in recent Indian history. With 260 lives lost, including 241 onboard and 19 on the ground, the event has reignited discussions around aviation safety, emergency preparedness, and regulatory oversight in one of the world’s fastest-growing air travel markets. The Aircraft Accident Investigation Bureau (AAIB) is leading the investigation, with a preliminary report anticipated around July 11, 2025, based on ongoing analysis of recovered black box data. This article explores the current investigation process, the recovery of flight recorders, and the broader implications for Indian aviation safety.

Initial Findings from the AAIB

The AAIB has confirmed the successful retrieval and initial decoding of the aircraft’s black boxes, specifically the Cockpit Voice Recorder (CVR) and Flight Data Recorder (FDR), marking significant progress in the investigation. The CVR was recovered from the rooftop of a building on June 13, while the FDR was found amidst the wreckage on June 16. Data modules were accessed and decoded at the AAIB Lab in Delhi by June 25, 2025, showcasing India’s growing domestic aviation investigation capabilities.

Investigators are currently analyzing the black box data, with a focus on engine fuel control switches as a potential factor, according to early reports. One of the black boxes sustained external damage, but the Crash Protection Module (CPM) of the CVR remained intact, ensuring reliable data extraction. A “golden chassis,” an identical black box, was used to verify the integrity of the process. While a preliminary report is expected soon, no definitive findings or causes have been publicly released as of July 09, 2025.

This marks a shift from past practices where black boxes were sent abroad for decoding, such as in the 2010 Mangalore and 2020 Kozhikode crashes. The upgraded AAIB Lab in Delhi, commissioned in April 2025, now enables in-country analysis, speeding up investigations and enhancing data security.

“The successful recovery of flight recorders is a positive step, enabling investigators to reconstruct the flight’s final moments.”
— Dr. Ramesh Kumar, former Director of AAIB

Composition of the Investigation Team

The investigation team, led by the Director General of AAIB, includes a diverse mix of experts. Technical members from the Indian Air Force, Hindustan Aeronautics Limited (HAL), and the U.S. National Transportation Safety Board (NTSB) are actively involved. The United Kingdom’s Air Accidents Investigation Branch (AAIB) has also provided four investigators with expertise in aircraft operations, engineering, and recorded data.

Officials from Boeing and General Electric (GE), stakeholders in the Boeing 787-8 Dreamliner’s design and engine systems, are assisting with the technical examination. An aviation medicine expert and an Air Traffic Control officer are included to provide perspectives on pilot health and ground communication protocols.

The NTSB team is stationed in Delhi, working alongside Indian authorities at the AAIB Lab. Their involvement is crucial given their global experience in handling complex aviation accidents. The collaborative approach, conducted under International Civil Aviation Organization (ICAO) protocols, enhances the credibility and depth of the investigation.

Broader Implications for Indian Aviation Safety

The AI-171 crash has prompted renewed scrutiny of India’s aviation infrastructure. While the country has made significant strides in expanding its civil aviation sector, challenges remain, including aging aircraft fleets, congested airspaces, and the need for enhanced pilot training programs. The anticipated preliminary report serves as a potential wake-up call for regulators and operators alike.

According to Meera Joshi, an aviation safety analyst, “Indian civil aviation has made significant safety improvements over the last decade. However, incidents like this highlight the ongoing need for rigorous oversight and infrastructure upgrades.” Her comments underscore the delicate balance between rapid growth and sustainable safety standards.

The financial impact of the crash is considerable. Preliminary estimates suggest direct costs, including aircraft loss, emergency response, and interim compensation, could range between $15 million and $25 million USD. Beyond monetary losses, the reputational damage to Air India and the emotional toll on victims’ families are immeasurable.

“The timely submission of the preliminary report, if it occurs as planned, aligns with global best practices, allowing regulators to act swiftly while investigations continue.”
— John Simmons, International Aviation Consultant

Evolution of Black Box Decoding Capabilities in India

Historically, India lacked the facilities to decode black boxes from major aviation accidents. For instance, after the 1996 Charkhi Dadri crash, data was analyzed in Moscow and the UK. In contrast, the 2025 AI-171 investigation marks a turning point, with the AAIB Lab in Delhi now equipped to handle such tasks domestically.

This development aligns with international best practices outlined by the ICAO. It reduces dependency on foreign agencies and enhances the speed and confidentiality of investigations. The capability to decode both CVR and FDR within India is a significant leap in national aviation safety infrastructure.

Greater domestic capacity allows for quicker issuance of safety advisories and interim recommendations. This ensures that similar risks can be mitigated in real time, rather than waiting months for external analysis to be completed and returned.

Conclusion

The ongoing investigation into the Air India AI-171 crash highlights the growing maturity of India’s aviation investigation framework, with the successful recovery and decoding of black box data within the country marking a significant milestone. As investigators analyze the data—potentially focusing on engine fuel control switches—the aviation community awaits the preliminary report, expected around July 11, 2025. Until then, no definitive cause has been established.

As India continues to expand its civil aviation footprint, the AI-171 crash serves as a stark reminder of the importance of safety, regulation, and preparedness. The tragedy has already spurred introspection and early action, with the Directorate General of Civil Aviation (DGCA) ordering additional inspections of Air India’s Boeing 787 fleet. The final report, expected within 12 months per ICAO guidelines, will likely shape future reforms in aircraft maintenance, pilot training, and air traffic control, potentially influencing global aviation safety standards.

FAQ

What caused the Air India AI-171 crash?
No definitive cause has been determined. Investigators are analyzing black box data, with a preliminary report expected around July 11, 2025. The final report is anticipated within 12 months, per ICAO guidelines.

Were the black boxes recovered and analyzed?
Yes. Both the Cockpit Voice Recorder and Flight Data Recorder were recovered on June 13 and 16, respectively, and successfully decoded at the AAIB Lab in Delhi by June 25, 2025. Analysis is ongoing.

Who is involved in the investigation?
The investigation team includes officials from AAIB, Indian Air Force, HAL, NTSB (USA), UK AAIB, Boeing, GE, and experts in aviation medicine and air traffic control.

What is the significance of the AAIB Lab in Delhi?
The lab enables domestic decoding of black boxes, reducing reliance on foreign facilities, speeding up investigations, and enhancing data security.

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Photo Credit: Reuters

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Regulations & Safety

NTSB Preliminary Report: Ryanair 737-800 Engine Failure

NTSB confirms fan-blade-out on Ryanair 737-800 shattered cabin window, partially ejecting a passenger during climb from Thessaloniki.

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This is a developing story. Information may change as official details are released.

This is original reporting and analysis by AirPro News.

On August 13, 2026, the National Transportation Safety Board (NTSB) issued its preliminary report on a July 10 uncontained engine failure aboard a Ryanair Boeing 737-800, confirming that a fan-blade-out event shattered a cabin window and caused a rapid decompression. The incident resulted in a 61-year-old male passenger being partially pulled through the shattered window before being secured by fellow passengers.

The event occurred during climb out from Thessaloniki International Airport (SKG) in Greece. The flight, operated by Ryanair subsidiary Malta Air, was bound for Memmingen, Germany (FMM). The NTSB is currently investigating potential similarities between this event and a fatal 2018 engine failure, while the agency has also publicly addressed premature speculation regarding the cause by Ryanair leadership.

Flight 1879 rapid decompression

According to the NTSB preliminary report, the Boeing 737-800 was climbing when the right-hand CFM56-7B engine experienced a fan-blade-out event. Debris from the engine struck the fuselage and shattered a window at row 11. The resulting rapid decompression pulled a passenger partially outside the aircraft. The passenger sustained neck and shoulder injuries as well as friction burns, but no fatalities occurred.

Reporting by The Air Current indicates the failure happened at an altitude of approximately 15,000 feet. Passengers described a sudden and violent disruption to the flight. A passenger told AP News that the cabin was quiet before a loud noise resembling a bursting tire occurred, adding that they knew immediately the aircraft had lost pressure due to the sudden loss of altitude.

Initial reports following the July 10 incident suggested the failure occurred in the airspace of the Republic of North Macedonia. However, flight path analysis confirmed the event took place in Greek airspace. The Hellenic Air and Rail Safety Investigation Authority officially delegated the investigation to the NTSB on July 16, 2026.

Maintenance history and preliminary findings

The NTSB preliminary report notes that bird remains were found inside the damaged engine. Flight crews had reported four suspected bird strikes to the aircraft’s number two engine in the 12 months preceding the accident. The report states that bird remains were found in two of those previous cases.

Maintenance records indicate that the fan blades on the failed right engine underwent ultrasonic inspections in November 2025 and May 2026. No damage was found during either inspection. The official cause of the July 10 failure remains under investigation by the NTSB, with participation from the Federal Aviation Administration (FAA), Boeing, and CFM International, a joint venture between GE Aerospace and Safran.

Regulatory protocols and historical precedent

The investigation has generated friction between the NTSB and Ryanair regarding public communications. On August 7, 2026, NTSB Chair Jennifer Homendy issued a letter to Ryanair CEO Michael O’Leary after he told investors the investigation was focused on foreign object damage rather than aircraft age or maintenance. Homendy stated that the NTSB had made no such determination and noted that O’Leary’s comments violated International Civil Aviation Organization (ICAO) Annex 13 protocols governing accident investigations.

The aviation industry is closely monitoring the investigation due to the aircraft and engine types involved. The Air Current reported that the event closely mirrors the April 2018 Southwest Airlines flight 1380 uncontained engine failure, which also involved a Boeing 737-700 and a CFM56-7B engine. That incident resulted in one passenger fatality after a shattered window caused partial ejection, leading the FAA to mandate engine inlet redesigns by July 2028.

The NTSB addressed the historical context directly in its preliminary report:

The investigative team is aware of previous … events with similar engine models that resulted in damage to engine inlets or cowlings and fuselage structures. Determination of any relevant similarities or details between this accident and previous events remains under investigation.

AirPro News analysis

We observe that the public rebuke of a major airline CEO by the NTSB is a rare and significant enforcement of ICAO Annex 13 communication protocols. Operators typically defer entirely to the investigating authority to avoid compromising the integrity of an active probe. The NTSB’s swift correction underscores the agency’s zero-tolerance policy for operator speculation, particularly when an event involves high-profile safety concerns like uncontained engine failures.

The CFM56-7B is one of the most widely used commercial aviation engines in the world. Any investigation involving a fan-blade-out event on this powerplant will naturally draw intense regulatory scrutiny, especially given the precedent set by the 2018 Southwest Airlines accident. While the discovery of bird remains introduces foreign object damage as a variable, we expect investigators will rigorously examine the efficacy of the ultrasonic inspections conducted in November 2025 and May 2026 to understand how the blade failure propagated.

Sources: National Transportation Safety Board

Photo Credit: NTSB

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Regulations & Safety

FAA Installs New Surface Radar at Newark Airport

The FAA unveiled a new SMR-4 radar at Newark Liberty as part of a $30 million infrastructure upgrade targeting runway safety.

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U.S. Transportation Secretary Sean P. Duffy and Federal Aviation Administration (FAA) Administrator Bryan Bedford unveiled a new Surface Movement Radar-Systems Model 4 (SMR-4) at Newark Liberty International Airport (EWR) on August 11, 2026, replacing a 30-year-old legacy system.

The installation is part of a broader $30 million infrastructure upgrade at the New Jersey hub designed to prevent runway incursions and reduce delays. According to the FAA press release, the SMR-4 allows air traffic controllers to track aircraft and ground vehicles across runways and taxiways in all weather and visibility conditions.

Newark’s infrastructure modernization

The $30 million funding allocation for EWR spans a three-year period and targets critical technological vulnerabilities. During the summer of 2025, the Airports experienced severe delays that prompted the FAA to deploy Software patches, expedite fiber deployment, and rebalance flight volumes. To date, 90% of the airport’s legacy copper wiring has been replaced with high-speed fiber.

“Since the start of this administration, we have been working towards building a modern system that will serve America’s skies for generations,” Duffy stated. “From replacing Newark’s ancient copper wire to investing $30 million into new infrastructure and bringing new radar online, we are delivering real safety and efficiency enhancements at one of our nation’s busiest airports.”

The FAA has set a target deadline of summer 2027 for EWR to install new electronic information displays, upgraded voice switches, and a new long-range radar system.

National surface awareness rollout

The EWR installation is one of five SMR-4 systems deployed nationwide to date. The agency has accelerated its broader technological overhaul over the past year, replacing 60% of all copper wires in its national network and converting 363 radio sites. The FAA also transitioned 19 air traffic control towers to electronic flight strips and installed 151 IP voice switches at control towers across the country.

Bedford emphasized the operational volume driving the upgrades. “Newark sees well-over a thousand flights per day, and the new Surface Movement Radar will help controllers keep those flights safe at this major U.S. hub,” Bedford said, describing the deployment as a step toward modernizing the national airspace.

The push for enhanced surface surveillance follows a fatal runway incursion at LaGuardia Airport (LGA) on March 22, 2026. In that event, Air Canada (AC) Express Flight 8646, operated by Jazz Aviation using a Bombardier CRJ900, collided with an airport firefighting vehicle on Runway 4. The National Transportation Safety Board (NTSB) confirmed two pilot fatalities and 39 injuries. The NTSB is leading the ongoing Investigation, and no official cause has been determined.

In response to surface safety concerns, the FAA has installed 96 new Surface Awareness Initiative systems nationwide over the past year to provide controllers with better situational awareness.

AirPro News analysis

The FAA’s rapid deployment of 96 Surface Awareness Initiative systems and the ongoing SMR-4 rollout represent a tangible shift toward proactive technological intervention in ground operations. While the NTSB has not yet concluded its investigation into the March 2026 LaGuardia runway incursion, the agency’s aggressive timeline for replacing legacy copper wiring and installing surface tracking tools indicates that regulators are prioritizing immediate situational awareness upgrades for air traffic controllers. We view the $30 million targeted investment at EWR as a template the FAA is likely to replicate at other high-density hubs where legacy infrastructure limits operational capacity during low-visibility conditions.

Sources: Federal Aviation Administration

Photo Credit: Federal Aviation Administration

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Regulations & Safety

FAA Revises Takeoff Obstacle Notes in Terminal Procedures

The FAA updates its Terminal Procedures Publication to simplify IFR departure planning with new DER crossing altitudes.

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The Federal Aviation Administration (FAA) is revising the presentation of takeoff obstacle notes within its Terminal Procedures Publication (TPP), offering pilots a simplified method to utilize standard climb gradients during Instrument Flight Rules (IFR) departures.

In a press release issued on August 5, 2026, the National Business Aviation Association (NBAA) announced the charting updates. The revisions provide pilots with a specific Departure End of Runway (DER) crossing altitude, allowing them to safely clear low, close-in obstacles without calculating non-standard climb requirements for every individual threat.

Restructuring Obstacle Departure Procedures

Under the updated format, the FAA separates “Takeoff Minimums Obstacles” from “Low, Close-in Obstacles.” The agency defines low, close-in obstacles as those measuring 200 feet or less above the DER elevation.

Previously, pilots faced complex lists of individual obstacles during pre-flight planning. The new charting method consolidates these threats into distance groupings measured in quarter-mile increments from the DER. If a pilot meets the newly published DER crossing altitude, they can proceed using the standard IFR climb gradient of 200 feet per nautical mile (ft/NM) rather than a higher, non-standard gradient.

Industry advocacy and implementation timeline

The NBAA initially launched the effort to address the complexity of takeoff obstacle notes in 2015 during the FAA Aeronautical Charting Meeting. The resulting changes stem from collaboration between the FAA, the U.S. Instrument Flight Procedure Panel, and commercial charting providers including Jeppesen and Garmin.

While the FAA has officially adopted the new presentation standards, updating the entire National Airspace System will require a phased approach. The NBAA noted that the transition across all published procedures and commercial charts will take several years to complete.

AirPro News analysis

We view this charting revision as a practical step toward reducing pilot workload during IFR departure planning. By providing a clear DER crossing altitude that validates a standard 200 ft/NM climb, the FAA removes the ambiguity of evaluating multiple low, close-in obstacles individually. This change will be particularly beneficial for operators of aircraft with limited climb performance, allowing them to determine immediately if reported weather conditions permit visual obstacle avoidance when a higher climb gradient is unachievable.

Sources: National Business Aviation Association (NBAA)

Photo Credit: NBAA

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