CHICAGO- A United Airlines (UA) flight was forced to divert another transatlantic flight after a passenger’s laptop slipped through a cabin floor gap and fell into the cargo hold. The incident adds to a growing list of similar events involving the airline’s Boeing 767 fleet.
The affected service was operating from Washington Dulles International Airport, Washington (IAD), to Geneva Airport, Geneva (GVA). The diversion highlights ongoing safety concerns tied to unsecured cabin gaps and lithium battery risks.
United Airlines Laptop Incident
United Airlines flight UA748 departed Washington Dulles around 5:45 pm on a scheduled seven-hour journey to Geneva. Less than an hour after takeoff, the Boeing 767 turned back over the Maine coast and diverted to Newark Liberty International Airport.
United cited an unscheduled maintenance inspection as the official reason. According to PYOK, the underlying cause was a passenger’s laptop that slipped through a narrow gap in the Polaris Business Class cabin floor and dropped into the cargo hold, an area inaccessible during flight.
The aircraft landed in Newark shortly after 8 pm, allowing engineers to access the cargo compartment and retrieve the device.
How a Laptop Reached the Cargo Hold
The Polaris cabin on the Boeing 767 has a small gap between certain seats and the sidewall. This gap is typically sealed with a foam strip designed to prevent items from falling through.
Passengers have reportedly been placing personal items on this foam padding as an extra surface. Laptops, due to their weight, can dislodge the foam. Once the foam shifts, items can fall onto the cabin floor.
Beneath this area is a vent that leads into the cargo hold. While the vent is meant to be covered, the grate can move under pressure. In this incident, the laptop is believed to have passed through the vent and into the hold.
This was not the first time such an incident occurred on a United Boeing 767. In October 2025, flight UA 126 from Washington Dulles to Rome experienced a similar issue.
That aircraft turned back to Dulles about an hour after departure so maintenance crews could access the cargo hold and recover a fallen laptop. The pattern suggests a recurring vulnerability rather than a one-off event.
Why Flights Cannot Continue After Such Incidents
Lithium batteries inside laptops pose a serious fire risk if damaged. A fall into the cargo hold can compromise the battery casing, increasing the chance of overheating or ignition.
If a fire starts in an inaccessible cargo area, crew members have limited options to control it. This risk is considered unacceptable, prompting pilots to divert as a precaution.
A comparable safety-driven decision occurred last year when an Air France Boeing 777 diverted after a misplaced mobile phone could not be located in the cabin. The flight returned to Paris to eliminate any potential fire risk at cruising altitude.
Broader Safety Implications
United is not the only airline that uses foam padding to seal cabin gaps in premium cabins. However, it appears to be the only carrier experiencing repeated diversions linked to this specific issue.
The problem has become significant enough that United flight attendants reportedly have a dedicated announcement reminding Polaris passengers not to place items on the foam padding. This indicates an operational workaround rather than a permanent design fix.
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