A WestJet aircraft experienced one or more blown tires during the takeoff sequence at Denver International Airport (DEN), resulting in the flight being terminated and passengers transported back to the terminal via ground buses. While details remain limited, the busing of passengers — rather than a standard gate return via jetbridge — strongly suggests the aircraft either rejected the takeoff and remained on or near the runway, or returned to a remote stand after the event, consistent with standard incident protocols that keep a potentially compromised aircraft away from congested terminal infrastructure until an inspection is complete. Blown tires during the takeoff roll are a recognized and studied hazard in transport category operations, capable of affecting directional control, generating debris ingestion risk for engines, and in worst cases contributing to runway excursions.
From a crew perspective, the timing of a tire failure relative to V1 is operationally decisive. A blowout occurring well before V1 presents a relatively manageable rejected takeoff scenario, provided the crew acts promptly and sufficient runway remains. However, a failure near or at V1 forces a split-second go/no-go decision with degraded directional control and potential asymmetric braking — a scenario that has featured in numerous accident and incident investigations worldwide. Denver's runway environment at 5,431 feet MSL compounds performance margins, particularly during summer months when density altitude can significantly reduce accelerate-stop distances. DEN's Runway 16R/34L, one of the longest in North America at approximately 16,000 feet, offers considerable stopping margin, which may have been an asset in this event.
For Part 135 and airline operators, this incident serves as a timely reminder of the importance of pre-departure tire condition inspections and the limitations of visual checks for detecting internal structural degradation. High-speed tire failures are frequently linked to pre-existing damage — cuts, FOD punctures, or underinflation that wasn't caught during the walk-around — rather than spontaneous blowouts from runway debris alone. Maintenance programs that include tire pressure monitoring and inflation checks as a mandatory pre-departure item, rather than a discretionary visual, reduce exposure substantially. WestJet, which operates primarily Boeing 737 variants, follows Transport Canada-regulated maintenance standards, though the specific maintenance history of the affected tires will likely be a focal point of any Transportation Safety Board of Canada (TSB) investigation.
Broadly, blown tire incidents at major hub airports carry significant operational ripple effects beyond the single aircraft involved. A rejected takeoff or aircraft stopped on an active runway at DEN — one of the ten busiest airports in the United States — can trigger cascading departure and arrival delays, requiring tower and TRACON to resequence traffic across multiple runways. For corporate and business jet operators based at or routing through DEN, situational awareness about active ground incidents and the potential for extended departure delays is an increasingly relevant component of pre-flight planning. As aviation traffic density continues to grow at large hub airports, the secondary operational impact of even non-catastrophic incidents on total system throughput is an area receiving growing attention from both airline operations centers and the FAA's Traffic Management Unit.