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Regulations & Safety

NTSB Findings on United Airlines 737 MAX March 2024 Runway Excursion

NTSB investigation details runway condition misperception in United Airlines 737 MAX runway excursion at Houston IAH in March 2024.

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This article is based on official investigative data and documents released by the National Transportation Safety Board (NTSB) regarding the March 2024 United Airlines Flight 2477 incident.

NTSB Docket Reveals Critical Disconnect in United Airlines 737 MAX Runway Excursion

The National Transportation Safety Board (NTSB) has opened the public docket for its ongoing investigation into the March 8, 2024, runway excursion involving United Airlines Flight 2477. The Boeing 737-8 MAX, registered as N27290, veered off the runway after landing at George Bush Intercontinental Airport (IAH) in Houston, Texas, resulting in the collapse of its left main landing gear.

Newly released documents highlight a significant discrepancy between the flight crew’s perception of the landing environment and the actual runway conditions. According to the investigative reports, the Captain believed the runway was dry and braking action was “Good,” while data indicates the surface was wet and slippery. This misperception appears to have influenced critical operational decisions, including the selection of a low autobrake setting.

While the investigation is ongoing and a final probable cause has not yet been determined, the factual reports provide a detailed look into the human factors and external pressures present in the cockpit during the incident.

Conflicting Assessments of Runway Conditions

The central finding in the newly released documents is the conflict regarding runway condition codes, which are essential for determining landing performance and braking requirements. The NTSB docket reveals that the Captain, who was the Pilot Flying, recalled seeing condition codes of 5/5/5 for Runway 27 on the Automatic Terminal Information Service (ATIS).

In aviation standards, a code of 5 corresponds to “Good” braking action, typically associated with a wet surface that is not slippery. However, investigators found that the actual ATIS broadcast at the time of the incident reported codes of 3/3/3. A code of 3 indicates “Medium” braking action, warning pilots that the runway is slippery when wet.

This disconnect extended to visual perception. The First Officer, serving as the Pilot Monitoring, correctly identified the runway as “wet.” In contrast, the Captain maintained the assessment that the runway appeared “dry,” a belief that directly impacted the braking strategy employed during the landing roll.

Braking Decisions and High-Speed Exit

Based on the perception of favorable conditions, the flight crew made decisions that reduced the aircraft’s deceleration rate. NTSB data indicates that the Captain selected “Autobrake 1,” the lowest available setting. United Airlines standard operating procedures generally recommend higher autobrake settings (such as MAX) when runway conditions are slippery or uncertain.

The docket further reveals that manual braking was not applied until the aircraft was approximately 6,000 feet down the runway. The crew attempted to exit the runway onto Taxiway SC, a high-speed exit, while traveling at approximately 39 knots. Investigators noted that this speed was excessive for the wet surface conditions present at the time.

As the aircraft attempted the right turn, the tires lost traction. The 737 MAX skidded off the paved surface into the grass, where the left main landing gear struck a concrete electrical junction box. The impact caused the gear to separate, and the aircraft came to rest on its left wing and engine nacelle. Fortunately, no injuries were reported among the 160 passengers and 6 crew members.

External Pressures and ATC Instructions

The investigation also sheds light on external factors that may have contributed to the crew’s decision-making. Transcripts included in the docket show that Houston Tower instructed the crew to “keep your speed up” during the approach to accommodate a tight arrival sequence.

Investigators suggested that this instruction might have created a “sense of urgency” in the cockpit to clear the runway quickly. The Captain reportedly requested to roll to the end of the runway to shorten the taxi time to the gate, a maneuver he stated he had performed “hundreds of times” in his career. The Captain is a veteran pilot with over 15,000 flight hours, including more than 9,600 hours on the Boeing 737, and had completed landing performance training just one month prior to the accident.

AirPro News Analysis

The release of these factual reports underscores a recurring theme in runway excursions: the danger of confirmation bias. When a pilot expects a “dry” runway based on prior experience or a misread report, they may subconsciously filter out contradictory visual cues, such as the “wet” appearance noted by the First Officer.

Furthermore, the “keep your speed up” instruction from Air Traffic Control highlights the subtle but powerful pressure placed on crews at high-volume hubs like Houston. While safety is always the priority, the operational drive to maximize runway throughput can inadvertently encourage crews to push the boundaries of stable deceleration, particularly when environmental conditions are worse than anticipated.

Next Steps in the Investigation

The opening of the public docket marks a significant phase in the NTSB’s process, allowing industry experts and the public to review the factual basis of the investigation. The docket includes operational factors reports, human performance studies, and transcripts from the Cockpit Voice Recorder (CVR).

The NTSB has not yet issued a final report. The board will continue to analyze the gathered data to determine the official probable cause of the accident and may issue safety recommendations to prevent similar occurrences in the future.

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Photo Credit: NTSB

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Regulations & Safety

AIAA Calls for Faster FAA Certification Path for AAM Aircraft

AIAA urges the FAA to adopt predictable AAM certification timelines as bipartisan legislation targets the 5-9 year type certificate process.

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This article summarizes reporting by Aerospace America by Ryan Cooperman, J.D.

The American Institute of Aeronautics and Astronautics (AIAA) is calling for the Federal Aviation Administration (FAA) to establish a more predictable certification pathway for Advanced Air Mobility (AAM) aircraft, warning that regulatory uncertainty threatens United States aerospace leadership.

In a July 2, 2026, policy article published in Aerospace America, the AIAA outlined the critical balance between maintaining rigorous safety standards and fostering innovation. The publication notes that while traditional amended type certifications typically require three to five years, certifying entirely new aircraft types like AAM platforms currently takes five to nine years under existing FAA processes.

Legislative push for regulatory predictability

To address these extended timelines, bipartisan lawmakers introduced the Aviation Innovation and Global Competitiveness Act on February 13, 2026. The legislation seeks to mandate standard expected timelines for the FAA type certification process regarding AAM aircraft. It also aims to clarify the specific conditions under which the agency must require an issue paper, a regulatory step that often introduces variability into the certification timeline.

The AIAA has formally endorsed the legislation, aligning the bill with the institute’s designation of AAM and autonomous flight integration as a 2026 Aviation Priority Issue. According to Aerospace America, securing a predictable regulatory framework is vital not only for engineering progress but also for maintaining the capital investment required to bring hybrid and electric vertical takeoff and landing (eVTOL) aircraft to market.

Overcoming historical bottlenecks and workforce gaps

The push for modernization follows years of documented regulatory friction. On June 21, 2023, the Department of Transportation Office of Inspector General (DOT OIG) released a report indicating that communication and management issues had hindered the FAA’s ability to certify AAM aircraft efficiently. Congress subsequently passed the FAA Reauthorization Act of 2024 on May 16, 2024, which included specific provisions targeting AAM integration.

Beyond statutory changes, Aerospace America highlights that certification modernization is fundamentally a workforce challenge. As aircraft designs incorporate more autonomous flight systems, the FAA must attract and retain technical specialists, software engineers, and flight-test experts capable of evaluating highly complex architectures.

“The challenge is ensuring that America’s certification system can efficiently evaluate increasingly novel aircraft and enabling technologies while preserving the world’s safest aviation system,” Cooperman wrote.

AirPro News analysis

We view the AIAA’s public policy push as a reflection of broader aerospace industry frustration with the ad-hoc nature of early eVTOL certification bases. While the FAA has made strides since the 2023 DOT OIG report, the five to nine year timeline for new type certificates remains a significant barrier for manufacturers relying on continuous venture capital funding. If the Aviation Innovation and Global Competitiveness Act passes, the mandated timelines could provide financial markets with the predictability they require. However, the FAA will still face the practical hurdle of staffing enough specialized engineers to meet those statutory deadlines without compromising its safety mandate.

Sources: Aerospace America

Photo Credit: Aerospace America

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Regulations & Safety

FAA Awards L3Harris Contract to Modernize US Airspace Through 2045

The FAA awarded L3Harris a contract to upgrade 700+ ground stations and operate the US aircraft tracking network through 2045.

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On July 1, 2026, the Federal Aviation Administration (FAA) awarded L3Harris Technologies a contract to upgrade and operate the United States aircraft tracking network through 2045. The modernization effort will overhaul ground infrastructure to support the integration of advanced air mobility (AAM) vehicles and drones into the National Airspace System.

In a press release issued on July 1, 2026, L3Harris announced the agreement, which mandates the upgrade of at least 700 ground stations across the country. The enhanced network will provide real-time, satellite-based flight positioning data while bolstering cybersecurity measures to protect air traffic management systems. The exact monetary value of the contract was not disclosed.

Expanding surveillance for next-generation airspace

The contract extends the role of L3Harris in managing the FAA surveillance infrastructure for nearly two more decades. The upgraded ground stations are designed to handle increased network capacity, a requirement as the airspace becomes more crowded with non-traditional aircraft.

Kathy Crandall, President of Mission Networks, Space & Mission Systems at L3Harris, emphasized the operational impact of the upgrades.

“L3Harris is propelling the FAA’s modernization vision forward by delivering an advanced surveillance infrastructure that will define the future of our airspace system and ensure increased safety for all air travelers.”

Crandall added that expanding network capacity ensures the United States maintains its position in global air traffic management.

Alignment with broader FAA modernization initiatives

This surveillance contract aligns with ongoing FAA efforts to replace aging infrastructure across the National Airspace System. The agency has been executing its Facility Replacement and Radar Modernization (FRRM) strategy, which targets the replacement of over 370 air traffic control facilities and 618 radars that average 36 years of age.

L3Harris is already involved in parallel infrastructure projects for the FAA. The company is currently executing the FAA Telecommunications Infrastructure (FTI) upgrade. That project replaces legacy copper wire connections with high-speed fiber optic networks across FAA facilities, providing the bandwidth necessary to support emerging aviation technologies like electric aviation vertical takeoff and landing (eVTOL) aircraft and uncrewed aerial systems.

AirPro News analysis

The extension of the L3Harris mandate through 2045 highlights the reliance of the FAA on established defense and aerospace contractors to execute its long-term modernization goals. As the National Airspace System transitions to accommodate AAM and widespread drone operations, the data bandwidth and latency requirements for air traffic control will increase exponentially. We view the concurrent execution of the surveillance network upgrade and the FTI fiber optic rollout as a necessary synchronization. Without high-speed ground data transmission, the benefits of satellite-based, real-time tracking for low-altitude and autonomous aircraft would be severely bottlenecked.

Sources: L3Harris Technologies

Photo Credit: L3Harris Technologies

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Regulations & Safety

FAA Proposes Supersonic Noise Standard to Repeal 1970s Ban

The FAA announced noise-based certification standards for supersonic overland flight on June 30, 2026, targeting final rules by mid-2027.

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The Federal Aviation Administration (FAA) has proposed a new noise-based certification standard for supersonic aircraft, initiating the formal regulatory process to repeal the 1970s ban on commercial supersonic flight over United States territory.

Announced on June 30, 2026, by U.S. Transportation Secretary Sean P. Duffy and FAA Administrator Bryan Bedford, the rulemaking aims to establish acceptable noise thresholds for overland flights. The proposal provides aerospace Manufacturers with the regulatory framework required to finalize next-generation supersonic designs that utilize quiet boom and “Mach cutoff” technologies.

Regulatory framework and timeline

The initial proposal focuses on noise-based certification standards during cruise flight. According to the FAA press release, the agency plans to introduce a second rule covering landing and takeoff noise standards later in 2026. The FAA has set a target date of mid-2027 to finalize both sets of rules.

U.S. Transportation Secretary Sean P. Duffy characterized the initiative as a move to safely enable the next quantum leap in aviation technology. FAA Administrator Bryan Bedford noted that advances in aerospace engineering, materials science, and noise reduction will eliminate the traditional sonic boom.

“This means we can ultimately repeal the ban from the 1970s on supersonic flight over U.S. territory while minimizing noise impacts to residents in communities along the route and near airports,” Bedford stated.

The White House Office of Science and Technology Policy (OSTP) is also involved in the initiative. OSTP Director Michael Kratsios stated that the updated rules will strengthen the industrial base and ensure the future of aviation is built in America.

Technological foundations and industry response

The June 30 announcement follows a series of preparatory steps by both regulators and the aerospace industry. On January 27, 2026, the FAA unveiled a new agency structure that included the creation of the Office of Advanced Aviation Technologies, a division specifically tasked with overseeing the integration of supersonic aircraft into U.S. airspace.

The technical basis for the new noise thresholds draws on data from the NASA and Lockheed Martin X-59 quiet supersonic research aircraft. The X-59 completed its First-Flight on October 28, 2025. The aircraft was explicitly designed to reduce sonic booms to a gentle thump, providing regulators with the acoustic data necessary to establish new overland flight standards.

Commercial developers have responded positively to the regulatory clarity. Boom Supersonic CEO Blake Scholl confirmed that the FAA rulemaking includes provisions for the “Boomless Cruise” or Mach cutoff approach. Boom has been demonstrating this operational concept with its Boom XB-1 test aircraft. Scholl described the FAA announcement as a major step toward the supersonic renaissance.

AirPro News analysis

We view the establishment of a definitive noise standard as the single most significant regulatory hurdle for the revival of commercial supersonic travel. For the past several years, manufacturers have been developing quiet supersonic technologies without a finalized target for acceptable noise levels. By defining the Certification standards, the FAA is shifting the primary challenge for companies like Boom Supersonic from regulatory uncertainty to engineering execution. The mid-2027 target for finalizing both cruise and terminal area noise rules sets a tight timeline, but it aligns with the development schedules of the next-generation supersonic aircraft currently in testing.

Sources: Federal Aviation Administration

Photo Credit: Boom Supersonic

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