both of whom sustained injuries. On 23 September 2011, a DHC-3T Turbine Otter floatplane, N361TT, sustained substantial damage during a go-around and subsequent low-altitude maneuver at Heitman Lake, about 5 miles south-southwest of Kodiak, Alaska, killing the pilot and injuring the two passengers. One of the passengers reported that during the go-around, the airplane struck a tree on the shoreline and crashed. On 7 July 2013, a DHC-3 Otter registered to Rediske Air, N93PC, crashed on takeoff at Soldotna Airport, Alaska, killing all ten aboard. There were no surviving witnesses and the aircraft did not carry a flight data recorder, but the NTSB was able to reconstruct the aircraft's flight path using a recovered mobile phone video recorded by a passenger. The NTSB attributed the accident to a stall caused by the operator's failure to weigh cargo and verify that the aircraft was loaded within its center of gravity limits. On 25 June 2015, a Promech Air DHC-3 Otter crashed into the face of a granite cliff near Ella Lake, Alaska, 20 miles (32 km) northeast of Ketchikan. The aircraft carried a pilot and eight passengers who were tourists on a sightseeing excursion from a Holland America Line coastal cruise aboard the cruise ship MS Westerdam. All nine people on board died. The NTSB determined that the pilot had a history of poor decision making and that the company had a compromised culture that resulted in an "operation in which safety competed with performance and revenue". On 15 September 2015, a DHC-3 Turbine Otter floatplane carrying ten people and belonging to Rainbow King Lodge crashed on takeoff at Eastwind Lake, mile north of Iliamna, southwest of Anchorage. Three people were killed in the crash. On 13 May 2019, in the 2019 Alaska mid-air collision, a Taquan Air DHC-3 Turbine Otter floatplane, N959PA, collided with a Mountain Air Service DHC-2 Beaver, N952DB, over George Inlet, Alaska, with the loss of one passenger aboard the DHC-3 and five passengers and crew aboard the DHC-2. The NTSB attributed the accident to the inherent limitations of the see-and-avoid concept, along with the absence of alerts from both airplanes' traffic display systems." Due to the angle of approach, both pilots' viewpoints were partially blocked by the aircraft structure or seated passengers. The NTSB identified Taquan's inadequate preflight checklist and the Federal Aviation Administration's failure to require Taquan to implement a safety management system as contributing