Regulations & Safety
US DOT Launches ACERS to Modernize Aviation Complaint Handling
The US DOT introduces ACERS, a modern platform for real-time processing of record-high airline complaints, enhancing consumer protection and accountability.
DOT Launches Modernized Aviation Complaint System to Address Record-High Consumer Issues
The U.S. Department of Transportation (DOT) has introduced a sweeping modernization of its Airlines complaint handling process through the launch of the Aviation Complaint, Enforcement, and Reporting System (ACERS). This move marks a pivotal technological leap from the legacy system, which had been in place since the 1990s and was increasingly unable to handle the complexities and volume of today’s air travel complaints. The timing of this upgrade is significant, as the aviation sector faces mounting scrutiny due to persistent service disruptions and a surge in consumer complaints. In 2024 alone, the DOT received 66,675 complaints, a 9% increase over the prior year, underscoring the urgency for a more efficient, secure, and transparent complaint resolution platform.
ACERS promises to streamline the submission and handling of complaints, offering real-time processing, improved data security, and a user-friendly interface for both consumers and industry stakeholders. This overhaul is part of a broader movement within the DOT to enhance consumer protections, which has also seen a dramatic escalation in enforcement actions and regulatory reforms. The department’s renewed focus on accountability is reflected in the more than $166 million in penalties issued since 2021, compared to $71 million over the prior 24 years.
As air travel continues to rebound and evolve post-pandemic, the modernization of the complaint process is positioned to play a central role in restoring public trust and ensuring that airlines are held to high standards of customer service and regulatory compliance.
Historical Context and Legacy System Challenges
To fully appreciate the significance of ACERS, it is essential to understand the limitations of the system it replaces. The DOT’s previous complaint management platform, developed in the 1990s, was not designed for today’s high-volume, complex air travel landscape. As the number of passengers and the scope of consumer rights expanded, the legacy system became increasingly strained, leading to processing bottlenecks and delayed responses.
These shortcomings became particularly acute during periods of disruption, such as the COVID-19 pandemic, when complaint volumes surged to unprecedented levels. The DOT’s Air Travel Consumer Report, which tracks complaint data, was frequently delayed because the old system could not keep pace with the influx of submissions. Over the past three years, complaints have constituted roughly 91% of all consumer submissions, highlighting the critical need for a more robust infrastructure.
Processing delays were not just a matter of inconvenience. Airlines and ticket agents often waited more than a month to receive complaint notifications, undermining efforts to resolve issues promptly. The outdated system also posed security and privacy risks, as it lacked the data protection standards required for handling sensitive travel information in the modern era.
The New ACERS System Launch and Capabilities
Launched officially on August 1, 2025, ACERS is the product of a federal modernization initiative supported by the Technology Modernization Fund. The system’s consumer portal, accessible at airconsumer.dot.gov/consumer, serves as a centralized entry point for submitting complaints, comments, and compliments related to air travel services.
The most transformative feature of ACERS is its real-time processing capability. Unlike the legacy system’s month-long delays, ACERS notifies airlines and ticket agents immediately when a complaint is filed, both through its industry portal and via email. This enables faster response times and increases the likelihood of timely resolution, benefiting both consumers and service providers.
Security and privacy were top priorities in the system’s design. ACERS incorporates contemporary data protection protocols, addressing vulnerabilities that existed in the previous platform. These enhancements are especially important given the sensitivity of travel-related personal data and the heightened risk of cyber threats. The system also offers improved tools for industry users, facilitating more efficient complaint management and regulatory compliance.
“The new ACERS system enables real-time complaint processing and enhanced security, fundamentally changing how consumers and airlines interact with the DOT’s oversight.”
Volume and Trends in Airline Complaints
The modernization of the complaint system is a direct response to the escalating volume of airline consumer complaints. In 2024, the DOT logged 66,675 complaints, a record high and a 9% increase over 2023. This surge reflects not only growing traveler frustration but also increased consumer awareness about their rights and the mechanisms available for redress.
Complaint volumes have been trending upward for several years, with spikes during major disruptions. For example, in June 2022, complaints jumped by 34.9% from the previous month, reaching nearly 270% above pre-pandemic levels. The majority of these complaints relate to flight problems such as cancellations and delays, which accounted for 28.8% of the 5,862 complaints received that month.
Complaint rates vary significantly among airlines. In 2024, Frontier Airlines recorded 23.3 complaints per 100,000 passengers, the highest in the industry, while Southwest, Alaska, and Hawaiian Airlines posted the lowest rates. Disability-related complaints are prioritized for expedited response, with airlines required to reply within 30 days. The DOT also provides a dedicated hotline for travelers with disabilities, reflecting the department’s commitment to accessibility and equity in air travel.
DOT Enforcement Actions and Consumer Protection
The DOT’s enforcement posture has become notably more assertive in recent years. Since 2021, the department has issued more than $166 million in penalties for consumer protection violations, compared to $71 million from 1996 to 2020. This shift signals a broader commitment to holding airlines accountable for service failures.
The most prominent example is the $140 million penalty levied against Southwest Airlines in December 2023, following the carrier’s 2022 holiday meltdown that stranded over two million passengers. This penalty dwarfed previous records and was accompanied by requirements for Southwest to establish a $90 million compensation fund for affected travelers. In total, the financial impact on Southwest exceeded $750 million, including refunds and reimbursements mandated by the DOT.
Regulatory reforms have also expanded consumer protections. Recent rules require airlines to issue automatic cash refunds when owed and prohibit surprise fees, with projected annual savings for consumers exceeding half a billion dollars. Although the airline industry has challenged some of these rules in court, the DOT continues to defend its authority and pursue further enhancements to passenger rights.
“If airlines fail their passengers, we will use the full extent of our authority to hold them accountable.”, Secretary Pete Buttigieg
Industry Impact and Airline Performance
Operational performance across the airline industry has shown mixed results. While cancellation rates remain relatively low, 0.5% in November 2024 compared to 0.1% a year earlier, on-time performance has deteriorated. In 2024, airlines achieved on-time arrivals just 77.9% of the time, a decline from previous years. This has contributed directly to rising complaint volumes and passenger dissatisfaction.
There are stark differences in performance between carriers. Hawaiian Airlines led the industry with an 84.1% on-time arrival rate in July 2024, while Spirit and Frontier Airlines lagged behind at just over 61%. These disparities are mirrored in complaint ratios, indicating that operational excellence is closely linked to customer satisfaction and regulatory compliance.
Airlines are also facing increased financial and reputational risks from poor service. In response to regulatory pressure, the ten largest U.S. airlines now guarantee meals and free rebooking for passengers affected by airline-caused disruptions, and most also provide hotel accommodations. These commitments, while costly, are intended to restore confidence and reduce the need for formal complaints.
Consumer Rights and Process Improvements
The ACERS launch is part of a broader expansion of consumer rights in air travel. Federal laws now protect passengers in areas such as flight oversales, baggage mishandling, tarmac delays, and refunds. The DOT requires airlines to acknowledge complaints within 30 days and respond in writing within 60 days, with expedited timelines for disability-related cases.
Consumers are encouraged to first seek resolution directly with airlines, often at the airport, before escalating issues to the DOT. However, filing a complaint with the DOT can prompt faster action from airlines, as federal complaints typically receive prioritized attention. Advocacy groups advise travelers to use both channels, maximizing their chances for a satisfactory outcome.
ACERS was designed with accessibility in mind, featuring modern usability standards and technical support for travelers with disabilities. The DOT has also engaged with disability rights advocates to ensure the system meets the needs of all passengers, reflecting a commitment to equity and inclusion.
“DOT complaints create immediate action…they go right to the top of the stack of airline complaints.”, Charlie Leocha, Travelers United
Future Implications and Ongoing Developments
The introduction of ACERS is just one facet of the DOT’s broader modernization agenda. The system’s advanced analytics and real-time capabilities will enable the department to identify emerging issues more quickly and target enforcement actions more effectively. This could lead to earlier interventions and fewer large-scale disruptions in the future.
Collaborative initiatives, such as the Airline Passenger Protection Partnership with 18 state attorneys general, are expanding the DOT’s oversight capacity and creating new avenues for consumer redress. Ongoing rulemaking efforts, including proposals to require airlines to compensate passengers for disruptions, signal that further enhancements to passenger rights are on the horizon. The success of ACERS may also inspire similar reforms in other transportation sectors and international markets.
Conclusion
The launch of the ACERS platform marks a watershed moment in aviation consumer protection. By replacing a decades-old system with a modern, secure, and responsive platform, the DOT is addressing long-standing frustrations and empowering travelers to seek timely redress for service failures. The system’s real-time processing, improved data security, and accessibility features are expected to yield tangible benefits for both consumers and airlines.
As regulatory enforcement intensifies and passenger rights expand, the aviation industry faces heightened expectations for transparency, accountability, and customer service. The effectiveness of ACERS and related initiatives will be measured by improvements in complaint resolution, passenger satisfaction, and industry compliance. These developments are likely to shape the future of air travel, setting new standards for consumer protection in the United States and potentially abroad.
FAQ
What is the ACERS system?
ACERS stands for Aviation Complaint, Enforcement, and Reporting System. It is the DOT’s new, web-based platform for handling airline service complaints, launched to replace the outdated system from the 1990s.
How does ACERS improve the complaint process?
ACERS enables real-time processing and notification of complaints, provides enhanced data security, and offers a more user-friendly interface for consumers and industry stakeholders.
What types of complaints can be filed through ACERS?
Consumers can submit complaints, comments, and compliments about air travel services, including issues related to cancellations, delays, baggage, accessibility, and refunds.
How does the DOT enforce airline consumer protections?
The DOT investigates complaints, issues penalties for violations, and has recently increased enforcement actions and penalties to hold airlines accountable for consumer protection failures.
Are there special provisions for travelers with disabilities?
Yes. Disability-related complaints are expedited, and the DOT provides a dedicated hotline and technical support to ensure accessibility and timely resolution.
Sources:
Photo Credit: DOT – Montage
Regulations & Safety
FAA Opens $40M ATC Manufacturing Facility in Maryland
The FAA opened a $40M Rohde & Schwarz USA plant in Frederick, MD to produce VoIP switches for national ATC modernization by 2028.
On August 25, 2026, the Federal Aviation Administration (FAA) and the U.S. Department of Transportation (USDOT) inaugurated a new $40 million manufacturing facility in Frederick, Maryland, dedicated to producing digital Voice over IP (VoIP) switches for the nation’s air traffic control network.
The 87,000-square-foot plant, operated by Rohde & Schwarz USA, represents a critical node in the FAA’s aggressive timeline to complete a nationwide air traffic control modernization overhaul by the end of 2028. According to an agency press release, the facility will build the CERTIUM Voice Communication System (VCS) to facilitate communication between air traffic controllers, pilots, and other control facilities.
Accelerating Air Traffic Control Modernization
The modernization effort is backed by a $12.5 billion down payment from the Working Families Tax Cut. U.S. Transportation Secretary Sean P. Duffy and FAA Administrator Bryan Bedford attended the opening to highlight the administration’s focus on domestic Manufacturing for critical aviation Infrastructure.
“Under President Trump, we aren’t just modernizing our skies at record speed—we’re putting American workers, American manufacturing, and American innovation first,” Duffy stated. “We’re making sure our air traffic control system is American made.”
Bedford emphasized the strict timeline driving the agency’s current procurement Strategy. He noted that the new facility supports the aggressive schedule to complete the new system by the end of 2028 while strengthening domestic production capabilities and creating high-quality jobs. Bedford described the equipment as a critical part of the landmark modernization effort.
Infrastructure Overhaul and Deployment Milestones
The opening of the Frederick plant follows a year of rapid infrastructure deployment by the FAA. The agency recently completed Wave 1 of its nationwide CERTIUM VCS deployment ahead of schedule. This milestone was marked by the installation of the 140th system at the Rapid City Regional Airport (RAP) control tower in South Dakota.
Beyond voice communication systems, the FAA has executed a massive infrastructure overhaul over the past year. The agency reports that 63 percent of legacy copper wires in air traffic control facilities nationwide have been replaced with high-speed fiber, 5G wireless, or Low Earth Orbit (LEO) capabilities.
Additional upgrades completed over the past year include the conversion of 388 radio sites and the installation of 176 IP voice switches. The FAA also deployed Surface Awareness Initiative technology at 96 towers, transitioned 21 towers to electronic flight strips, installed SMR4 Surface Movement Radars at five Airports, and added nine new Tower Simulation systems for controller Training.
AirPro News analysis
The opening of the Rohde & Schwarz USA facility in Maryland underscores a strategic shift toward localizing the supply chain for critical aviation infrastructure. By anchoring the production of digital VoIP switches domestically, the FAA mitigates supply chain risks that have historically delayed large-scale aerospace and infrastructure projects. We view the $12.5 billion funding injection as a substantial catalyst, though the 2028 completion target remains highly ambitious given the historical complexities of integrating new technologies into the national airspace system without disrupting active operations.
Sources: Federal Aviation Administration
Photo Credit: Federal Aviation Administration
Regulations & Safety
Global Aerospace Issues Hangar Foam Suppression Safety Guidelines
Global Aerospace updates hangar fire suppression guidelines, citing 200+ accidental foam discharges and the shift to PFAS-free alternatives.
Global Aerospace has issued updated safety and risk mitigation guidelines for aviation hangar fire suppression systems, highlighting the severe financial and environmental toll of accidental foam discharges. The aviation insurer published the comprehensive best practices on August 24, 2026, detailing the industry transition toward alternative fire protection technologies.
The guidance arrives alongside the introduction of the 2026 edition of National Fire Protection Association (NFPA) 409. This updated standard governs hangar fire protection and introduces critical changes to align requirements with modern aircraft design and growing environmental concerns regarding chemical suppressants.
The financial and human cost of accidental discharges
Fire suppression standards established in the mid-1970s heavily prioritized foam systems to combat large fuel-spill fires. However, Global Aerospace reports that these systems frequently cause more damage than the fires they are designed to prevent. Over the last two decades, more than 200 unnecessary foam discharges have occurred in aviation facilities.
These accidental activations have resulted in tens of millions of dollars in total damages, with the average per-incident cost reaching hundreds of thousands of dollars. Beyond property damage to aircraft and hangar infrastructure, accidental discharges pose severe life-safety risks to personnel.
The insurer cited a fatal 2014 incident at Eglin Air Force Base as a primary example of these hazards. Following a broken sprinkler pipe, the hangar filled with approximately 17 feet of foam in minutes, resulting in the death of one contractor.
Shifting standards and environmental-impact liabilities
Aviation insurers are increasingly processing claims that extend beyond immediate property damage to include long-term health risks and environmental restoration. This liability shift is largely driven by the presence of perfluoroalkyl substances (PFAS) in older aqueous film-forming foams (AFFF).
To mitigate these chemical risks, the aviation industry is actively transitioning toward fluorine-free foams and alternative fire suppression technologies. Global Aerospace highlighted the growing adoption of ignitable liquid drainage floor assemblies and optical flame detection systems, such as multi-spectrum infrared detectors. These alternatives eliminate hazardous chemicals and significantly reduce the likelihood of false alarms.
While the 2026 edition of NFPA 409 provides the framework for these modern systems, the updated standards must be adopted by local fire marshals before facilities can implement the changes.
Operational risk mitigation strategies
For facilities still operating legacy high-expansion foam (HEF) or AFFF systems, Global Aerospace recommends strict operational protocols to minimize the risk and impact of an accidental discharge. The insurer advises operators to protect all aircraft openings and secure sensitive electronics during maintenance operations.
In the event of a discharge, the guidelines stress the importance of keeping hangar doors closed to contain the foam and prevent environmental contamination outside the facility. Additionally, Global Aerospace recommends conducting all system testing and maintenance during off-hours to limit personnel exposure and operational disruption.
AirPro News analysis
The publication of these guidelines by a major aviation insurer underscores a broader industry reality: insurance providers are often the primary catalyst for operational safety upgrades. While regulatory bodies like the NFPA set the baseline standards, the financial pressure of uninsurable environmental liabilities tied to PFAS contamination is forcing hangar operators to modernize. We expect the transition to optical flame detection and drainage floor assemblies to accelerate rapidly as insurers begin pricing the risk of legacy foam systems out of the market.
Sources: Global Aerospace
Photo Credit: Global Aerospace
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.
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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