to a fuel leak onto the hot turbocharger. March 4, 2019: CommutAir Flight 4933, operating for United Express, arrived from Newark Liberty International Airport and missed runway 1 on landing, injuring five people and severely damaging the aircraft. The NTSB attributed the accident to confirmation bias which prompted the pilots to continue descending even though they could not see the runway in heavy snow. Contributing factors were poor decision-making by the captain; fatigue of the first officer, who was flying the aircraft; and misalignment of the ILS localizer caused by deep snow, a condition that multiple pilots had noticed previously but which had not been properly reported. Contrary to initial statements by CommutAir and the Federal Aviation Administration, the aircraft did not slide off the runway, but instead missed the runway entirely. References Other sources Essential Air Service documents (Docket DOT-OST-2000-8012) from the U.S. Department of Transportation: Order 2004-10-16 (October 25, 2004): re-selecting Colgan Air, Inc., to provide subsidized Essential Air Service (EAS) at Presque Isle/Houlton, Augusta/Waterville, Bar Harbor and Rockland, Maine, for a two-year period at a combined annual subsidy rate of $4,312,849. Order 2006-8-24 (August 25, 2006): re-selecting Colgan Air, Inc., operating as US Airways Express, to provide subsidized essential air service (EAS) at Presque Isle/Houlton, Augusta/Waterville, Bar Harbor, and Rockland, Maine, at a total annual subsidy rate of $4,774,068 ($3,572,592 for Augusta/Waterville, Bar Harbor, and Rockland; $1,201,476 for Presque Isle/Houlton), for the two-year period of November 1, 2006, through October 31, 2008. Order 2008-5-23 (May 19, 2008): re-selecting Colgan Air, Inc., operating as US Airways Express, to provide subsidized essential air service (EAS) at Presque Isle/Houlton, Maine, at an annual subsidy rate of $2,643,588, for the two-year period of May 15, 2008, through May 31, 2010. Order 2010-6-5 (June 2, 2010): selecting Colgan Air Inc., operating as US Airways Express, to provide essential air service (EAS) at Presque Isle, Maine, for an annual subsidy of $2,812,853 for the two-year period from June 1, 2010 to May 31, 2012. Order 2012-3-2 (March 2, 2012): selecting PenAir to provide EAS at Presque Isle and Plattsburgh using 34-passenger Saab 340 aircraft. At Presque Isle, PenAir will provide 19 weekly round trips for an annual subsidy rate of $4,341,967 for the first 6 months after full EAS commences and an annual subsidy rate of $3,892,174 for the 18 months thereafter. External links , official site Aerial image as of May 1996