Regulations & Safety
Power Bank Safety on Aircraft: Lessons from the Air Busan Fire
The Rising Concern Over Power Bank Safety on Aircraft
The recent fire on an Air Busan aircraft bound for Hong Kong has reignited concerns over the safety of power banks and other lithium-ion battery devices on flights. The incident, which occurred on January 28, 2025, at Gimhae International Airport in South Korea, injured seven people and forced the evacuation of 169 passengers and crew members. The suspected cause? A power bank stowed in an overhead locker. This event has prompted Air Busan to implement stricter regulations, banning the storage of power banks in overhead bins. But is this enough to ensure passenger safety, or is it merely a reactive measure?
Power banks have become an essential travel accessory, allowing passengers to charge their devices during long flights. However, their lithium-ion batteries pose significant safety risks, including the potential for overheating, short-circuiting, and even explosions. The aviation industry has long grappled with how to manage these risks, balancing convenience with safety. The Air Busan incident underscores the urgent need for stricter global standards and enforcement to prevent similar accidents in the future.
This article delves into the details of the Air Busan incident, explores the broader implications for the aviation industry, and examines expert recommendations for mitigating the risks associated with power banks on flights. We’ll also discuss the regulatory framework governing lithium-ion batteries on aircraft and the steps airlines can take to enhance passenger safety.
The Air Busan Incident: A Wake-Up Call
The fire on the Air Busan Airbus A321 was a stark reminder of the dangers posed by lithium-ion batteries. According to local media reports, the blaze was likely caused by a power bank stored in an overhead locker. The fire broke out just before takeoff, leading to the evacuation of all passengers and crew via inflatable slides. Seven people were injured, with one passenger remaining hospitalized. The incident has prompted Air Busan to ban the storage of power banks in overhead bins, requiring passengers to keep them in zipper storage bags under their seats or in seat pockets.
This measure, while precautionary, is more restrictive than existing international practices. Warren Chim Wing-nin, deputy chairman of the Hong Kong Institution of Engineers’ aircraft division, noted that the ban is a response to the recent accident but may not be necessary for all airlines. He emphasized the importance of further risk assessments by trade groups and carriers before expanding such measures globally.
The Air Busan incident is not an isolated case. In 2023, a power bank exploded on a Scoot Airlines flight from Singapore to Taipei, injuring two passengers. These incidents highlight the need for stricter safety protocols and better enforcement of existing regulations to prevent future accidents.
“Passengers should check their power banks to ensure they are in good condition and avoid bringing old ones on board. The internal insulator or wires inside older power banks could wear down over time, which could cause a short circuit and create a fire.” – Lo Kok-keung, retired engineering professor
Regulatory Framework and Industry Response
The International Civil Aviation Organisation (ICAO) and the International Air Transport Association (IATA) have established guidelines for the safe transport of lithium-ion batteries on aircraft. Power banks are classified as “spare lithium batteries” and are prohibited from checked luggage. They must be carried on board, with specific restrictions based on their watt-hour (Wh) rating. For instance, power banks with a Wh rating exceeding 100Wh are subject to additional limitations.
Hong Kong carriers like Cathay Pacific Airways and HK Express allow up to 20 spare batteries under 100Wh on board, while devices between 100Wh and 160Wh are limited to two. However, the implementation and enforcement of these guidelines vary significantly between airlines and regions. The Air Busan incident has prompted calls for stricter global standards and better enforcement to ensure consistent safety measures across the industry.
In response to the incident, Air Busan has implemented stricter rules regarding the storage of power banks on its flights. Other South Korean airlines, such as Eastar Jet, have also banned the storage of battery packs in overhead bins. These measures are part of a broader trend towards stricter regulation and safety protocols for portable electronic devices on flights.
Expert Recommendations for Passenger Safety
Experts like Lo Kok-keung and Warren Chim Wing-nin have offered several recommendations for passengers to minimize the risks associated with power banks on flights. Passengers should ensure their power banks are in good condition and from reputable brands. Older power banks are more prone to internal wear and tear, which can lead to short circuits and fires. Passengers should also keep power banks in their possession rather than stowing them away and avoid using them during flights.
Choi In-chan, a safety expert, suggests that airlines should check for portable chargers at the check-in counter and provide passengers with plastic bags to store them. This would allow cabin crew to easily monitor the status of power banks during the flight. Additionally, airlines should keep a list of passengers with charging devices to ensure proper oversight and management.
These recommendations, if implemented, could significantly reduce the risks associated with power banks on flights. However, they also highlight the need for better education and awareness among passengers about the potential dangers of lithium-ion batteries.
Conclusion
The Air Busan incident serves as a stark reminder of the risks posed by power banks and other lithium-ion battery devices on aircraft. While the airline’s decision to ban the storage of power banks in overhead bins is a step in the right direction, it is not a comprehensive solution. The aviation industry must adopt stricter global standards and better enforcement of existing regulations to ensure consistent safety measures across all airlines.
Passengers also have a role to play in minimizing these risks. By following expert recommendations and being mindful of the condition and storage of their power banks, they can help prevent accidents and ensure a safer travel experience for everyone. As the use of portable electronic devices continues to grow, the industry must remain vigilant and proactive in addressing the safety challenges they present.
FAQ
Question: Why are power banks banned from checked luggage?
Answer: Power banks are classified as “spare lithium batteries” and are prohibited from checked luggage due to the risk of overheating, short-circuiting, and explosions. They must be carried on board to allow for quick detection and handling of any issues.
Question: What should passengers do to ensure their power banks are safe?
Answer: Passengers should ensure their power banks are in good condition, from reputable brands, and avoid bringing old ones on board. They should also keep power banks in their possession and avoid using them during flights.
Question: Are other airlines likely to adopt similar measures?
Answer: It depends on further risk assessments by trade groups and carriers. While Air Busan’s ban is a precautionary measure, other airlines may wait for more data before implementing similar restrictions.
Sources: South China Morning Post, Bangkok Post, Korea Herald, Aero News Journal, The Street
Regulations & Safety
NTSB: Thermal Plugs Caused AA Flight 3023 Tire Failure
NTSB determines melted thermal relief plugs caused tire failure on American Airlines 737-8 at Denver, triggering emergency evacuation.
The National Transportation Safety Board (NTSB) has determined that melted thermal relief plugs caused the left main landing gear tires to fail on an American Airlines Boeing 737-8 during a July 2025 takeoff roll at Denver International Airport (DEN), prompting a high-speed rejected takeoff and emergency evacuation.
The final aviation investigation report, published on August 26, 2026, officially closes the inquiry into American Airlines Flight 3023. The document details the mechanical sequence that led to the tire failure while highlighting significant passenger noncompliance during the subsequent evacuation, as travelers ignored crew commands and retrieved carry-on baggage.
Mechanical sequence and rejected takeoff
The incident occurred on July 26, 2025, involving a Boeing 737-8, registration N306SW, equipped with CFM International LEAP-1B28 engines. According to the NTSB, the flight experienced an approximate 25-minute delay while awaiting departure at runway 34L.
During the subsequent takeoff roll, as the aircraft reached an indicated airspeed between 90 and 100 knots, the captain reported hearing a loud pop accompanied by a noticeable bump. The flight crew initiated a rejected takeoff at speeds above 80 knots.
The NTSB determined the probable cause of the incident was the melting of thermal relief plugs in the left main landing gear. This melting released tire pressure and caused the tires and wheels to fail during the takeoff roll. The agency noted that this failure resulted in abnormal airplane handling characteristics, which prompted the flight crew to reject the takeoff. Debris from the fractured wheels caused minor damage to the aircraft, including a three-inch dent on the lower skin of the left wing.
Emergency evacuation and passenger behavior
Following the rejected takeoff, the flight crew initially instructed the cabin to remain seated. Between 30 and 45 seconds later, after identifying smoke and fire originating from the left main landing gear, the crew ordered an emergency evacuation.
The aircraft carried 175 occupants, comprising 169 passengers and six crew members. The NTSB final report confirms that zero injuries occurred during the event. This official casualty figure supersedes preliminary media reports from July 2025 that had indicated minor injuries and hospital evaluations.
The investigation report draws specific attention to passenger behavior during the emergency egress. The NTSB stated that the cabin crew described the evacuation as rapid but hindered by significant passenger confusion and noncompliance. Despite flight attendants repeatedly commanding passengers to leave their belongings behind, multiple individuals retrieved their carry-on baggage. The NTSB concluded that this noncompliance directly slowed the flow of egress from the aircraft.
AirPro News analysis
The NTSB findings regarding American Airlines Flight 3023 add to a well-documented and growing safety concern within the commercial aviation sector. Passenger retrieval of carry-on baggage during emergency evacuations is a recurring issue that compromises the 90-second evacuation standard mandated by the Federal Aviation Administration (FAA).
When passengers stop to open overhead bins and carry luggage down escape slides, they not only slow the egress rate for those behind them but also introduce the risk of puncturing the evacuation slides or injuring fellow passengers. We continue to see official accident reports cite passenger noncompliance as a negative factor in evacuation efficiency. This recurring behavioral pattern has prompted safety advocates and lawmakers to question whether current FAA evacuation certification tests, which rely on compliant participants, accurately reflect real-world human behavior during an emergency.
Sources: National Transportation Safety Board
Photo Credit: National Transportation Safety Board
Regulations & Safety
Marine One Loss of Separation at DCA: NTSB Preliminary Report
NTSB cites radio line-of-sight failure after Marine One and Envoy Air E-170 came within 0.82 NM at Reagan National.
This is a developing story. Information may change as official details are released.
This is original reporting and analysis by AirPro News.
A loss of separation occurred on August 4, 2026, between a Sikorsky VH-3D operating as Marine One and an Envoy Air Embraer E-170 departing Ronald Reagan Washington National Airport (DCA). The incident took place approximately two miles north of the airport at 14:34 EDT and prompted an immediate Federal Aviation Administration (FAA) relocation of radio equipment after investigators identified a communication failure.
According to a preliminary report released on August 27, 2026, by the National Transportation Safety Board (NTSB), air traffic controllers at DCA did not receive a required three-minute pre-departure warning from the helicopter. The event triggered a review of strict Safety protocols implemented following a fatal midair collision in the same airspace in January 2025.
Incident timeline and separation data
The loss of separation occurred when Marine One departed The Ellipse simultaneously with Envoy Air flight 3742 departing runway 1 at DCA. Preliminary FAA estimates indicate the aircraft came within 0.82 nautical miles (NM) laterally and 700 feet vertically. The NTSB is currently analyzing surveillance data to establish the exact closest point of approach.
President Donald Trump was on board the Sikorsky VH-3D at the time of the incident. In a statement provided to CBS News, White House spokesman Kush Desai confirmed the President was never in danger.
Marine One flights are piloted by the finest aviators in the world, and the White House maintains the utmost confidence in these patriots and other security officials who are responsible for ensuring the President’s safety.
No injuries were reported among the occupants of either aircraft, and both flights continued to their respective destinations without further incident.
Communication failure and FAA response
The NTSB preliminary report points to inadequate radio line-of-sight coverage between The Ellipse and the DCA tower as the primary factor in the missed pre-departure warning. A DCA tower controller reported that the transmission attempt from the helicopter was “broken and unreadable,” according to CBS News.
Following the August 4 incident, FAA technicians evaluated the infrastructure and confirmed the line-of-sight deficiency. To resolve the issue, the agency relocated the helicopter-control radio equipment to the top of the DCA control tower. Subsequent communication checks were successful.
CBS News also reported that recent construction at the White House may have contributed to the radio line-of-sight degradation, though the NTSB has not yet issued a final determination on the cause.
Regulatory context and prior airspace changes
The airspace surrounding DCA operates under highly specific procedural rules designed to deconflict fixed-wing airline traffic from frequent VIP helicopter movements. These procedures were significantly tightened following a fatal midair collision on January 29, 2025, involving an airliner and an Army Black Hawk helicopter near the airport.
Following the 2025 accident, regulators instituted a requirement for a ground stop at DCA anytime a Helicopters passes on a conflicting route. The failure of the three-minute warning on August 4 prevented controllers from initiating this required ground stop for the Envoy Air departure.
Air traffic controllers and Marine One pilots had previously met on July 28, 2026, exactly one week prior to the incident, to discuss ongoing communication challenges in the sector.
AirPro News analysis
The August 4 loss of separation highlights the fragility of procedural deconfliction in the Washington, D.C. airspace. While the FAA characterized the event as a momentary loss of separation, the failure of a critical communication link reveals a single point of failure in the safety protocols established after the 2025 collision. We note that the rapid relocation of the radio equipment by the FAA demonstrates an acknowledgment of the infrastructure gap. As the NTSB continues its Investigation, we will monitor the docket for potential systemic recommendations regarding how VIP helicopter movements integrate with high-volume Commercial-Aircraft traffic at DCA, particularly concerning redundant communication systems.
Sources: National Transportation Safety Board
Photo Credit: National Transportation Safety Board
Regulations & Safety
FAA Moves to Fire Two LaGuardia Controllers After Fatal Collision
FAA initiates termination proceedings against two LaGuardia controllers for early shift departures on the night of the March 22, 2026 runway collision.
This is a developing story. Information may change as official details are released.
This article summarizes reporting by Reuters by David Shepardson and Doyinsola Oladipo.
The FAA has initiated termination proceedings against two air traffic controllers accused of leaving their shifts early on the night of a fatal runway collision at LaGuardia Airport (LGA) in March 2026. The agency is classifying the unauthorized early departures as timecard fraud amid a broader national crackdown on the practice.
The disciplinary action follows the March 22, 2026, accident in which Air Canada Express Flight 8646, operated by Jazz Aviation LP, collided with an aircraft rescue firefighting (ARFF) vehicle while landing on Runway 4. According to Reuters, the two controllers allegedly departed the facility approximately one hour before their scheduled shifts ended, a practice colloquially known as an “early shove.”
Disciplinary actions and union response
The FAA stated its commitment to holding employees accountable, emphasizing that it will not compromise the safety or efficiency of the national airspace system. U.S. Secretary of Transportation Sean Duffy condemned the practice, stating that while most controllers complete their full shifts, the department will not tolerate fraud from individuals who unfairly burden their colleagues and impact the airspace.
The National Air Traffic Controllers Association (NATCA) confirmed it is actively discussing the allegations with FAA leadership. The union indicated that these internal discussions are the appropriate forum for addressing the matter. Reuters reports that the FAA is currently conducting a nationwide enforcement effort targeting employees who leave on break at the end of their shifts and fail to return.
The March 22 collision and investigation
The NTSB continues to investigate the March 22 collision under investigation ID DCA26MA161. The official cause of the accident remains undetermined. The aircraft involved was an MHI RJ Aviation CRJ-900, and the ground equipment was an Oshkosh Striker 1500 ARFF vehicle.
Official NTSB figures confirm that 76 people were on board the aircraft, including 72 passengers, two flight attendants, and two pilots. The captain and first officer sustained fatal injuries. Thirty-nine individuals were transported to local hospitals, with six reported to have serious injuries.
It remains unverified whether the controllers’ early departure directly influenced the events leading to the collision. Speaking in March 2026, NTSB Chair Jennifer Homendy noted that operating with two controllers in the tower cab during a midnight shift is common practice across the national airspace system, suggesting the facility may have been operating at standard staffing levels at the time of the accident.
Regulatory response to surface safety
Following the LaGuardia accident, the FAA accelerated initiatives to improve surface visibility at airports. On May 13, 2026, the agency announced a $16.5 million investment to equip all airport vehicles with transponders.
These vehicle movement area transponders (VMATs) are designed to provide ATC with better situational awareness of ground equipment operating on runways and taxiways.
AirPro News analysis
We note that the FAA’s decision to pursue termination for timecard fraud rather than operational errors highlights a strict administrative approach to facility management. By focusing on the unauthorized absence, the agency addresses the “early shove” culture directly without preempting the NTSB’s ongoing safety investigation into the collision’s root causes. The distinction between administrative violations and operational fault will likely remain a focal point as NATCA engages with FAA leadership.
Photo Credit: Mike Segar – Reuters
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