LONDON, UK — Passengers bound for the United States faced an agonizing six-hour delay at London Heathrow Airport after an emergency evacuation slide was accidentally deployed right before departure.
The incident occurred on Sunday aboard British Airways Flight BA217, a regularly scheduled transatlantic service to Washington Dulles International Airport (IAD). The Boeing 777-200ER, registered as G-VIIY, was parked at Gate B47 in Terminal 5 and preparing for its scheduled 12:35 PM BST departure when the mishap took place.
According to airport sources, ground crew and passengers were startled when the emergency slide attached to the front-left door suddenly inflated onto the tarmac during the final departure procedures.
The Cost of a “Gate Inflation”
When an emergency slide is deployed at a gate—often referred to in the industry as an inadvertent deployment—the aircraft cannot fly until the slide is removed, inspected, and a replacement is fitted, or the door is legally cleared and deactivated for flight under strict regulatory guidelines.
The process is notoriously costly and time-consuming. For the passengers on board BA217, it meant a long afternoon of waiting on the tarmac and inside the terminal while engineering teams scrambled to resolve the issue.
Timeline of the Delay
| Event | Scheduled Time (BST) | Actual Time (BST) | Status |
| Departure (LHR) | 12:35 | 18:39 | Delayed 6 hours 4 minutes |
| Arrival (IAD) | 15:40 (EDT) | 21:30 (EDT) | Delayed 5 hours 50 minutes |
A Safe but Frustrating Resolution
Despite the chaotic start to the journey, the Boeing 777 was eventually cleared for service. The flight safely took off from Heathrow at 6:39 PM BST, arriving in Washington just after 9:30 PM local time.
British Airways has not yet commented on whether the accidental deployment was the result of a mechanical malfunction or human error during the “doors to automatic” arming procedure. The airline apologized to passengers for the significant disruption to their travel plans.
