Regulations & Safety
DGCA Orders Boeing Fuel Switch Inspections After Air India Crash
Indian aviation authority mandates Boeing fleet checks following fatal crash linked to fuel control switch failure. Global carriers initiate parallel inspections.
The Directorate General of Civil Aviation (DGCA) has issued an urgent directive requiring all Indian airlines to inspect fuel control switch locking mechanisms on Boeing aircraft by July 21, 2025. This mandate follows preliminary findings from the Air India Flight AI171 crash investigation, which revealed both engines lost fuel supply seconds after takeoff due to unexplained fuel switch movement. The order affects multiple Boeing models including 737s and 787s, with global carriers like Etihad and Singapore Airlines initiating parallel inspections despite Boeing and FAA assurances of system safety. This development highlights critical tensions between advisory bulletins and mandatory safety protocols in aviation regulation.
The current safety concern stems from a 2018 advisory issued by the U.S. Federal Aviation Administration (FAA), known as Special Airworthiness Information Bulletin (SAIB) NM-18-33. This bulletin highlighted the potential for disengagement in the locking mechanisms of fuel control switches on several Boeing aircraft models. These mechanisms are designed to prevent accidental movement of switches from the RUN to the CUTOFF position, which could otherwise lead to engine shutdown during flight.
At the time, the FAA did not categorize this issue as an “unsafe condition” requiring a mandatory Airworthiness Directive. Instead, the agency recommended that operators inspect the switches during routine maintenance. Boeing aircraft, including the 737 and 787 series, were identified as having similar switch designs that could be susceptible to this issue. The switches are spring-loaded and located beneath the thrust levers, requiring a deliberate lift-and-move action to change position, an intentional safeguard meant to prevent inadvertent shutdowns.
Despite these recommendations, many airlines, including Air India, did not act on the advisory due to its non-mandatory status. The assumption that the switch design was robust enough to prevent accidental movement has now come under scrutiny following the Air India crash. The failure to universally adopt even advisory-level safety recommendations has exposed a significant gap in global aviation safety compliance.
On June 12, 2025, Air India Flight AI171, a Boeing 787-8 Dreamliner, crashed shortly after takeoff from Ahmedabad, resulting in the deaths of all 241 passengers and crew onboard, as well as 19 individuals on the ground. The Aircraft Accident Investigation Bureau (AAIB) released a preliminary report on July 12, 2025, revealing a critical failure involving the aircraft’s fuel control switches. According to flight data, both switches moved from RUN to CUTOFF within three seconds of liftoff, leading to a complete loss of engine thrust.
The cockpit voice recorder captured a brief but alarming exchange between the pilots. One asked, “Why did you cut off?” while the other replied, “I did not do it.” The report confirmed that the switches briefly returned to the RUN position, but it was too late to recover engine power. The aircraft’s throttle control module had been replaced twice in recent years, once in 2019 and again in 2023, but neither replacement was linked to issues with the fuel switches.
Importantly, Air India confirmed that it had not conducted the inspections recommended in the 2018 FAA advisory. The switches involved in the crash bore the same part number (4TL837-3D) flagged in the bulletin. This raises questions about whether adherence to even non-binding advisories should be considered essential when dealing with components that have known vulnerabilities and are used across multiple aircraft models.
In response to the preliminary findings, the DGCA issued a binding airworthiness directive on July 14, 2025. The directive mandates inspections of all Boeing aircraft models in Indian fleets that use similar fuel control switch mechanisms. These include the Boeing 717, 737 (including MAX variants), 747, 757, 767, 787, MD-11, and MD-90. The inspections must be completed by July 21, 2025, and airlines are required to submit detailed inspection plans and post-inspection reports to the DGCA. The inspection process involves verifying that the fuel control switches require a deliberate lifting action before movement. If a switch can be moved without lifting, it is deemed faulty and must be replaced. The DGCA emphasized that “strict adherence to the timeline is essential for continued airworthiness.” This directive affects more than 150 aircraft operated by Indian carriers such as Air India, IndiGo, Akasa Air, and SpiceJet. Notably, Boeing 777s are excluded due to different switch designs.
As of July 14, Air India reported that it had inspected approximately 50% of its Dreamliner fleet, with no malfunctions found. The airline is working to complete the remaining inspections within the mandated timeline. The DGCA’s move represents a significant shift in regulatory posture, adopting a more precautionary approach in the face of potential systemic vulnerabilities.
Following the release of the AAIB’s preliminary report, several international airlines initiated their own inspections. Etihad Airways issued internal bulletins advising pilots to handle fuel switches with increased caution and instructed maintenance crews to check the locking mechanisms. Singapore Airlines followed suit, launching similar inspections across its 787 fleet. South Korea’s Ministry of Land, Infrastructure and Transport also announced plans to conduct inspections on Boeing aircraft operated domestically.
These proactive steps contrast with the positions taken by the FAA and Boeing. Between July 11 and 14, both organizations circulated internal communications asserting that the fuel switch design does not constitute an unsafe condition. Boeing issued a Multi-Operator Message reiterating that the FAA’s 2018 advisory remains valid and that no mandatory action is required. However, this stance has not deterred other regulators and airlines from taking preventive measures.
The divergence in responses underscores a broader issue in aviation regulation: the lack of harmonization across jurisdictions. While some authorities treat advisories as sufficient grounds for mandatory action, others maintain a more conservative approach. This inconsistency can lead to gaps in safety oversight, particularly when identical components are used globally.
“This exposes critical flaws in non-mandatory safety bulletins. When identical components fly worldwide, ‘advisory’ status creates preventable vulnerabilities.”, Captain Amit Singh, Aviation Safety Specialist
The fuel control switches in Boeing aircraft are integral to engine operation, acting as the final gatekeepers for fuel flow. In the 787 cockpit, these switches are located beneath the thrust levers and are protected by brackets. They are spring-loaded and designed to require a lift-and-move action, minimizing the risk of accidental shutdowns during flight. However, if the locking mechanism becomes disengaged, either due to improper installation, wear, or manufacturing defects, the switch can move freely, posing a significant hazard.
Engineering analyses suggest three primary failure scenarios: mechanical disengagement of the lock, human error during high-workload phases like takeoff, and electronic anomalies that falsely indicate switch movement. The AAIB is currently exploring all three possibilities. Notably, the 2018 FAA advisory was based on confirmed cases of mechanical disengagement in 737 models, where improper assembly led to similar vulnerabilities.
Maintenance protocols require the throttle control module (TCM), which houses the fuel switches, to be replaced every 24,000 flight hours. While Air India followed this schedule, the replacements do not automatically verify the integrity of the locking mechanism. This gap in the maintenance process may have contributed to the undetected vulnerability in the aircraft that crashed. The DGCA’s directive marks a significant departure from traditional regulatory practices, where advisories are often treated as optional. By converting a seven-year-old FAA advisory into a mandatory inspection order, the DGCA has set a precedent that may influence other aviation authorities. The incident also reignites the debate over the effectiveness of non-mandatory safety communications. Critics argue that advisories, while informative, lack the enforcement power needed to ensure compliance. The fact that Air India had not acted on the 2018 advisory despite using the same switch models highlights the limitations of relying solely on voluntary adherence.
Furthermore, the tragedy has sparked discussions about the role of human factors versus mechanical failure. The AAIB has not concluded whether the switch movements were intentional or accidental. Speculations about pilot error or suicide have been strongly condemned by the Indian Commercial Pilots Association, which emphasizes the need for evidence-based conclusions. The final AAIB report, expected within 12–18 months, will be crucial in determining the root cause and guiding future regulatory decisions.
The DGCA’s July 21 inspection deadline represents a pivotal moment in aviation safety regulation. By mandating inspections based on a previously non-binding advisory, the regulator has demonstrated a proactive approach to risk management. This action may serve as a model for other countries grappling with similar safety concerns, particularly when components are shared across global fleets.
As the aviation industry awaits the final findings of the AAIB investigation, the focus remains on ensuring that all potentially affected aircraft are thoroughly inspected. The incident underscores the need for greater international coordination in safety standards and highlights the importance of acting on known vulnerabilities before they result in tragedy.
What aircraft models are affected by the DGCA directive? What is the deadline for completing inspections? Why did the FAA not issue a mandatory directive in 2018?
Aviation Safety Crisis: DGCA Mandates Boeing Fuel Switch Inspections After Air India Crash
Background of the Fuel Switch Safety Concern
The Air India Flight AI171 Crash and Preliminary Findings
DGCA’s Directive: Scope and Requirements
Global Aviation Industry Response
Technical Analysis of Fuel Control Switches
Regulatory and Safety Implications
Conclusion
FAQ
The directive applies to Boeing 717, 737 (including MAX variants), 747, 757, 767, 787, MD-11, and MD-90 aircraft registered in India.
All inspections must be completed by July 21, 2025, with reports submitted to the DGCA.
The FAA considered the issue a potential risk but did not classify it as an unsafe condition, issuing an advisory instead of a mandatory directive.
Sources
Photo Credit: Business Today
Regulations & Safety
EASA and EUROCONTROL Launch Plan to Address GNSS Interference in Aviation
EASA and EUROCONTROL publish a joint Action Plan to enhance European aviation safety against increasing GNSS signal interference near conflict zones.
This article is based on an official press release from EASA and EUROCONTROL, supplemented by industry research data.
On March 26, 2026, the European Union Aviation Safety Agency (EASA) and EUROCONTROL published a joint Action Plan aimed at fortifying the safety and resilience of European aviation against the escalating threat of Global Navigation Satellite System (GNSS) interference. The comprehensive strategy outlines a coordinated, multi-year approach to combat GPS jamming and spoofing, which have become regular operational hurdles for commercial airlines.
GNSS provides aircraft with critical positioning, navigation, and timing data. According to the joint press release, interference with these signals has become a frequent occurrence, particularly near the edges of active conflict zones, posing a direct threat to aviation safety. The newly published Action Plan seeks to maintain near-term safety while limiting the impact on airspace capacity and establishing a robust framework for future Navigation infrastructure.
By detailing 22 specific action items categorized into short-, medium-, and long-term measures, the initiative clearly defines responsibilities and timelines for various aviation stakeholders. We are seeing a definitive regulatory pivot from treating GNSS interference as a temporary anomaly to addressing it as a permanent fixture of modern airspace that requires structural technological backups.
To understand the urgency of this joint Action Plan, it is necessary to look at the recent surge in signal disruption incidents. Industry data from the International Air Transport Association (IATA) indicates that global positioning system (GPS) signal loss events increased by 220% between 2021 and 2024. This spike in jamming and spoofing is heavily concentrated around the peripheries of active conflict zones, most notably in Eastern Europe, the Baltic region, and the Middle East.
The operational impact of these disruptions is substantial. While Commercial-Aircraft are currently authorized to use the GPS constellation for GNSS, losing this signal reduces safety margins by increasing pilot workload and disabling critical systems, such as terrain and collision avoidance. Furthermore, it frequently forces aircraft to fly longer, less efficient routes, resulting in widespread flight delays.
The catalyst for this coordinated response was a formal letter sent on June 6, 2025, by 13 EU Member States to the European Commission, demanding immediate action against Radio Frequency Interference (RFI) affecting aviation. This political pressure followed a major European Aviation Crisis Coordination Cell (EACCC) exercise in March 2025, which underscored the urgent need for standardized spoofing responses and technical backups.
The Action Plan structures its 22 items across three distinct timeframes. The short-term actions, slated for the next one to three years, focus on immediate threat containment and maintaining airspace capacity. According to the research report detailing the plan, these measures include developing standardized phraseology for communications between pilots and Air Traffic Control (ATC), as well as establishing harmonized criteria for issuing and canceling Notices to Air Missions (NOTAMs) regarding interference. A critical component of the short-term strategy is the pooling of data. EASA and EUROCONTROL are utilizing a shared “Data4Safety” workspace to consolidate interference data, harmonize detection algorithms, and generate co-branded maps and alerts. This unified, real-time map of European airspace interference represents a major advancement for pilot situational awareness, replacing the previously fragmented views held by individual Airlines and national authorities.
Looking ahead three to five years, the medium-term actions focus on coordination and technological development. EASA and EUROCONTROL plan to work closely with avionics manufacturers and standards bodies, such as EUROCAE, to develop more robust GNSS receivers. New standards, expected for open consultation in 2026 or 2027, will require receivers to automatically recover from RFI once an aircraft leaves an impacted area.
For the long-term (five years and beyond), the focus shifts to strategic resilience and the deployment of alternative technologies. The Action Plan assesses complementary infrastructure for scenarios where GNSS is entirely unavailable. Explored technologies include Low Earth Orbit Positioning, Navigation, and Timing (LEO PNT), the L-band Digital Aeronautics Communications System (LDACS), and terrestrial reference time distribution systems.
Leadership from both EASA and EUROCONTROL emphasized the necessity of moving beyond temporary fixes to establish a resilient, sector-wide defense against signal interference.
“While the potential threat to aviation safety from GNSS interference has so far been mitigated by short-term actions such as raising pilot awareness, it is clear that more needs to be done,” said Florian Guillermet, EASA Executive Director, in the official press release. “This Action Plan lays out and prioritises short, mid and longer-term actions and, importantly, also assigns roles to the various aviation actors.”
EUROCONTROL echoed this sentiment, tying the initiative to broader modernization goals.
“GNSS interference remains a significant and evolving challenge for European aviation, making today’s Action Plan an important step forward in our collective response,” stated Raúl Medina, Director-General of EUROCONTROL. “The Action Plan concretely supports our Member States and aviation partners as we work together to ensure the evolution and resilience of aviation’s critical infrastructure.”
We observe that the EASA and EUROCONTROL Action Plan represents a fundamental shift in aviation safety strategy: moving from containment to structural resilience. By integrating this plan with EUROCONTROL’s Trajectory 2030 strategy, endorsed by Member States in November 2025 and published in December 2025, European Regulations are acknowledging that GPS spoofing is no longer a localized military spillover, but a persistent civilian infrastructure vulnerability.
Furthermore, while this is a European initiative, the active integration of guidance from IATA and the International Civil Aviation Organization (ICAO) suggests a broader strategic goal. We anticipate that this European framework will serve as the foundational blueprint for global alignment on GNSS interference standards and reporting at the ICAO level in the coming years.
GNSS interference involves the disruption of Global Navigation Satellite System signals, commonly through jamming (blocking the signal) or spoofing (sending false signal data). This deprives aircraft of precise positioning, navigation, and timing information. The plan is a response to a 220% increase in GPS signal loss events between 2021 and 2024, driven by geopolitical conflicts. It was directly catalyzed by a June 2025 demand from 13 EU Member States for coordinated action against radio frequency interference.
Long-term solutions (5+ years) involve deploying complementary infrastructure that does not rely on traditional GNSS. This includes Low Earth Orbit Positioning, Navigation, and Timing (LEO PNT) and the L-band Digital Aeronautics Communications System (LDACS).
Sources:
The Escalating Threat of GNSS Interference
Geopolitical Drivers and Operational Impact
A Phased Approach to Airspace Resilience
Short-Term Containment and Data Sharing
Medium to Long-Term Technological Shifts
Industry Leadership Perspectives
AirPro News analysis
Frequently Asked Questions
What is GNSS interference?
Why was the Action Plan published now?
What are the long-term solutions proposed?
Photo Credit: Montage
Regulations & Safety
ICAO Adopts Stricter CO2 and Noise Standards for New Aircraft
ICAO’s new regulations mandate 10% stricter CO2 limits and tighter noise controls for subsonic and supersonic aircraft starting 2026.
This article is based on an official press release from the International Civil Aviation Organization (ICAO), with additional context summarized from industry reporting.
On March 27, 2026, the International Civil Aviation Organization (ICAO) Council formally adopted significantly stricter environmental standards for new Commercial-Aircraft. The updated regulations target both carbon dioxide (CO2) emissions and noise levels, marking a major regulatory shift for aerospace Manufacturers worldwide.
According to the official ICAO press release, the new rules mandate a 10 percent increase in stringency for CO2 emissions and introduce harsher noise limits for both subsonic and next-generation supersonic aircraft. These measures are explicitly designed to force the integration of the latest fuel-efficiency and noise-reduction technologies into future aircraft designs.
This regulatory update directly supports the global aviation industry’s mandate to achieve net-zero carbon emissions by 2050. Because commercial aircraft typically have operational lifespans of 20 to 30 years, standards implemented in the early 2030s are critical to ensuring that the mid-century global fleet operates as efficiently as possible.
The ICAO has established a phased timeline for the rollout of its new CO2 emissions standards. Starting in 2031, all new aircraft type designs must meet a certification standard that is 10 percent more stringent than the previous baseline, which had been in effect since 2017.
For aircraft types that are already in production, the timeline extends to 2035. According to industry research summarizing the ICAO framework, new Deliveries of these active programs will face a complex, tiered standard based on Maximum Take-Off Mass (MTOM):
In addition to emissions, the ICAO Council has raised the bar for acoustic performance. Beginning in 2029, new subsonic aircraft type designs will be subject to noise limits that are 6 decibels stricter for large aircraft and 2 decibels stricter for smaller models.
Crucially, the ICAO has also addressed the impending return of commercial supersonic flight. By 2029, next-generation supersonic jets will be legally required to comply with the exact same noise limits that apply to standard subsonic commercial aircraft during takeoff and landing.
“These more stringent ICAO standards have been developed to ensure the latest technologies are used in aircraft design to reduce aviation CO2 emissions and aircraft noise globally… The collaborative approach ensures that the revised rules are both technically robust and reflective of the realities faced by regulators and manufacturers in every region.”
The new standards are the culmination of a multi-year technical review process led by ICAO’s Committee on Aviation Environmental Protection (CAEP). The groundwork for these Regulations was heavily debated during the CAEP/13 meetings, which commenced in February 2025. The ICAO’s decision follows mounting pressure from environmental researchers. In February 2025, the International Council on Clean Transportation (ICCT) published a study indicating that previous ICAO standards lagged behind state-of-the-art technology by approximately a decade. The ICCT warned that fuel efficiency gains had stalled, necessitating stricter international mandates.
“The aviation industry’s commitment to net-zero emissions by 2050 requires continuous improvements in aircraft efficiency. Our findings suggest that without stronger standards, the industry risks falling short of its climate goals.”
Nikita Pavlenko, Aviation Program Director at the ICCT, echoed this sentiment in the organization’s research, noting that improvements in new aircraft are expected to contribute about one-sixth of all emission reductions under the industry’s net-zero target, making stronger standards crucial.
The 2031 and 2035 deadlines will require major commercial manufacturers, such as Boeing and Airbus, to update active type certification projects. Some modern designs are already positioned to meet these goals; industry reports note that Boeing expects its upcoming 777X to produce 20 percent fewer emissions than the models it replaces.
For the nascent supersonic sector, the 2029 noise regulations present a massive regulatory hurdle. Companies like Boom Supersonic, currently testing its XB-1 demonstrator for the future Overture jet, will now have to ensure their aircraft are as quiet as traditional subsonic jets in airport environments.
Conversely, the stricter noise limits could serve as a market catalyst for electric vertical takeoff and landing (eVTOL) air taxis and regional electric aircraft. Industry analysts suggest that if these vehicles prove significantly quieter than traditional helicopters, operators may rapidly adopt them to cap their overall noise footprints and comply with the new ICAO standards.
We note that the simultaneous mandate to reduce both emissions and noise presents a highly complex engineering challenge for aerospace manufacturers. Aerodynamic modifications designed to improve fuel efficiency and lower CO2 emissions can sometimes negatively impact acoustic performance, and vice versa. Balancing these competing technical requirements will likely require significant research and development investments over the next decade. Furthermore, the strict application of subsonic noise limits to supersonic aircraft effectively closes a regulatory loophole, forcing companies in that space to innovate heavily in engine noise suppression if they hope to operate at major international hubs.
According to official ICAO documentation, the new requirements have an effective date of August 3, 2026, and will apply globally starting January 1, 2027. The specific design and production deadlines phase in between 2029 and 2035.
Starting in 2029, any new supersonic aircraft designs must meet the same stringent noise limits required of traditional subsonic commercial jets during takeoff and landing. Sources:
Stricter CO2 Emissions Standards
Phased Implementation for New and In-Production Aircraft
Noise Reduction Mandates
Subsonic and Supersonic Requirements
Background and Environmental Pressure
The CAEP Process and ICCT Findings
Industry Impact and Emerging Technologies
Commercial Manufacturers and Supersonic Hurdles
AirPro News analysis
Frequently Asked Questions
When do the new ICAO standards take effect?
How do the new rules affect supersonic flights?
International Civil Aviation Organization (ICAO) Newsroom
FLYING Magazine
GreenAir News
Photo Credit: ICAO
Regulations & Safety
FAA Investigates Near Collision of United 737 and Army Black Hawk in Santa Ana
A United Airlines 737 and a US Army Black Hawk had a close call near John Wayne Airport, prompting FAA investigation into airspace separation rules.
This article summarizes reporting by Flightradar24 and Ian Petchenik, with additional context from Aeroin.
On the evening of Tuesday, March 24, 2026, a commercial airliner and a military helicopter experienced a mid-air close call near John Wayne Airport (SNA) in Santa Ana, California. According to reporting by Flightradar24, a United Airlines Boeing 737-800 and a US Army UH-60M Black Hawk converged in the airspace, prompting an automated collision avoidance alert in the commercial jet.
The incident forced the United flight crew to take immediate evasive action by temporarily halting their descent. Both aircraft successfully avoided a collision, and the commercial jet landed safely shortly after the encounter. We are closely following the subsequent Federal Aviation Administration (FAA) investigation, which centers on airspace management protocols and the enforcement of newly implemented separation rules.
Flight data published by Flightradar24 indicates that United Airlines Flight UA589, traveling from San Francisco (SFO) to Santa Ana, was descending through 2,000 feet on its final approach. At the same time, a US Army Sikorsky UH-60M Black Hawk helicopter crossed the airliner’s flight path at an altitude of 1,425 feet. Reporting by Aeroin notes that the helicopter, operated by crews from the California Air National Guard, had departed from Los Alamitos Army Airfield and was returning from a low-altitude training mission in the Santa Ana mountains.
At the closest point of proximity, recorded at exactly 03:40:35 UTC, the two aircraft were separated by merely 525 feet vertically and 1,422 feet (approximately 433 meters) laterally. These precise separation metrics were derived from granular ADS-B flight data analyzed by Flightradar24.
The rapidly decreasing distance between the Boeing 737-800 and the Black Hawk triggered a Traffic Collision Avoidance System Resolution Advisory (TCAS RA) in the United cockpit. As detailed by Flightradar24, the United crew responded to the automated warning by arresting their descent, effectively maintaining a safe vertical separation from the military helicopter.
Following the resolution of the traffic conflict, Flight UA589 resumed its approach. The twin-engine aircraft touched down safely at John Wayne Airport approximately three minutes after the incident, with no injuries reported among the passengers or crew.
On Thursday, March 26, 2026, the FAA officially announced the opening of an investigation into the Santa Ana close call. A central focus of the regulatory probe is airspace management and controller procedures. According to the incident research report, investigators are specifically looking into the enforcement of recent regulatory changes. The investigation will determine “whether a new measure to suspend the use of visual separation between airplanes and helicopters was applied.”
As noted in the research report, the FAA recently implemented a rule change banning the use of “visual separation” between helicopters and fixed-wing aircraft near the busiest airports in the United States. This mandate requires air traffic controllers to utilize active radar separation rather than relying on helicopter pilots to visually confirm they are clear of conflicting traffic.
This recent event in Southern California draws immediate parallels to past aviation tragedies. Reporting by Aeroin highlights a fatal mid-air collision in early 2025 over the Potomac River near Washington D.C., which also involved a US Army Black Hawk and a commercial regional jet, an American Eagle Bombardier CRJ-700. In that 2025 accident, investigators cited poor airspace management as the primary contributing factor leading to the collision.
At AirPro News, we observe that the Santa Ana incident underscores the persistent and complex challenges of managing mixed-use airspace. The intersection of low-flying military or general aviation traffic with the established approach paths of commercial airliners remains a critical vulnerability in the national airspace system.
Furthermore, this event highlights the indispensable role of automated safety systems. The successful activation of the TCAS RA likely prevented a catastrophic outcome when standard air traffic control separation margins were compromised. As the FAA continues to enforce its new radar separation mandates for helicopters, we anticipate increased scrutiny on controller training and the technological integration required to monitor these busy terminal areas effectively. The shadow of the 2025 Potomac River collision clearly looms large over this current investigation, indicating that regulators are under immense pressure to ensure strict adherence to the updated separation protocols.
A Traffic Collision Avoidance System Resolution Advisory (TCAS RA) is an automated alert provided to pilots when their aircraft is on a potential collision course with another transponder-equipped aircraft. It provides specific, mandatory flight path instructions, such as arresting a descent or initiating a climb, to ensure safe separation.
The incident occurred on the evening of Tuesday, March 24, 2026, in the airspace near John Wayne Airport (SNA) in Santa Ana, California. The closest proximity between the two aircraft was recorded at 03:40:35 UTC.
The FAA recently banned the use of “visual separation” between helicopters and fixed-wing aircraft near the busiest U.S. airports. Controllers must now use active radar separation to keep these aircraft apart, rather than relying on pilots to maintain visual clearance.
Incident Details and Flight Path
The Close Call Over Santa Ana
Evasive Action and TCAS Activation
Regulatory Response and Historical Context
FAA Investigation and New Separation Rules
Echoes of Past Airspace Conflicts
AirPro News analysis
Frequently Asked Questions
What is a TCAS RA?
When and where did the Santa Ana close call occur?
What are the new FAA rules regarding helicopter separation?
Sources
Photo Credit: Flightradar24
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