later overheated and failed and power was reduced to engine number two. With only two engines, the aircraft could not maintain altitude and the crew decided to make a gear-down forced landing in a field, but the aircraft crashed during the attempt. On 16 November 1959, Aeroflot Flight 315, an An-10 (CCCP-11167), entered a nosedive and crashed near Snilow Airport due to tail icing, killing all 40 on board. It was found that the An-10 was vulnerable in icing conditions. On 26 February 1960, Aeroflot Flight 315, an An-10A (CCCP-11180), entered a nosedive while on approach to Snilow Airport due to tail icing. Although the crew were able to regain control, the aircraft went into another nosedive and crashed, killing 32 of 33 on board. In the wake of this accident and the crash of An-10 CCCP-11167 in 1959, ice protection systems for the stabilizer were improved and pilots could not select more than 15 degrees of flaps in known icing conditions. On 27 January 1962, an Aeroflot An-10 (CCCP-11148) crashed near Baratayevka Airport during a test flight after the number four propeller reversed, killing 13 of 14 on board. On 28 July 1962, Aeroflot Flight 415, an An-10A (CCCP-11186), struck a mountain 13 mi southeast of Adler/Sochi Airport while on approach due to ATC errors, killing all 81 on board. On 8 February 1963, an Aeroflot An-10A (CCCP-11193) stalled and crashed near Syktyvkar during a training flight following triple engine failure due to ice ingestion, killing the seven crew. On 8 August 1968, an Aeroflot An-10A (CCCP-11172) crashed on landing at Mirny Airport after the left main landing gear fell off while the landing gear was lowered; there were no casualties. On 12 October 1969, an Aeroflot An-10 (CCCP-11169) ran into a trench after landing on a snow-covered runway at Mirny Airport; no casualties. On 15 May 1970, an Aeroflot An-10 (CCCP-11149) lost control and crashed at Kishinev (now Chișinău) while performing a two-engined go-around during a training flight, killing the 11 crew. On 8 August 1970, Aeroflot Flight 888, an An-10A (CCCP-11188), force-landed in a field 24 mi north of Kishinev Airport following an in-flight fire caused by an uncontained engine failure, killing one of 114 on board. On 31 March 1971, Aeroflot Flight 1969, an An-10 (CCCP-11145), crashed on approach to Voroshilovgrad (now Luhansk) following an unexplained wing separation, killing all 65 on board. On 12 October