A business jet departing Auburn-Lewiston Municipal Airport (KLEW) in Auburn, Maine, crashed during a takeoff attempt in active snowstorm conditions, killing all six people aboard. The aircraft, a Bombardier Challenger 300 operated by a charter company, failed to achieve controlled flight after leaving the runway environment, with the accident occurring during deteriorating winter weather. The National Transportation Safety Board launched a full investigation, deploying a go-team to examine the wreckage, aircraft systems, weather data, and crew decision-making in the hours and minutes preceding the departure.
For professional and charter pilots, the circumstances of this accident immediately raise the question of contaminated runway and surface operations under Part 135 and Part 91 standards. Takeoff performance on a contaminated surface — particularly one accumulating snow at a rate that can outpace a holdover time table — is one of the most consequential judgment calls in business aviation. The critical variables include whether a formal contaminated runway performance calculation was completed, whether a current NOTAM or field condition report accurately reflected the surface state at the time of the takeoff roll, and whether the aircraft received a compliant pre-departure deicing and anti-icing treatment with verified holdover time. A crew executing a departure from a lower-traffic general aviation airport in a snowstorm may face compounding pressures: limited ground services, self-reported field conditions, and mission pressure from passengers or operators.
The broader regulatory context matters here as well. FAA's ground deicing and anti-icing program under 14 CFR Part 135.227 and the associated ACs — particularly AC 120-60 — establish the framework for holdover time tables and two-person verification of the "clean aircraft concept." When icing conditions are present, both the aircraft surfaces and the takeoff surface must be evaluated as a system. KLEW is a certified Part 139 airport, but smaller Maine airports serving charter operations can present reduced infrastructure compared to larger commercial airports, including fewer equipped deicing pads, shorter weather observation windows, and more limited ARFF resources.
This accident fits a persistent pattern in business aviation accident statistics: turbine aircraft accidents involving adverse weather disproportionately occur during takeoff and approach, and winter operations represent a concentrated period of risk. The NTSB's most significant prior findings in winter-departure accidents — including the 2005 Signature Flight Challenger 604 crash at Montrose, Colorado, and the ongoing examination of surface icing events — consistently point to gaps in crew training for contaminated runway operations, over-reliance on generic performance charts that do not account for accelerating snow accumulation, and time-pressure dynamics in charter settings. Until NTSB publishes its probable cause, operators across the Part 91, 91K, and 135 spectrum should treat this accident as a prompt to audit their own winter ops SOPs, holdover time training currency, and contaminated runway performance calculation procedures.