Records of the Soviet 64th IAK for April 7, 1953 indicate:
At 1610, six MIG-15s of the 224th IAP (led by Senior Lieutenant Anisimov) battled with four F-86s in the area of Kizjo at an altitude of 13,000 meters. At 1640 upon approach to Danu airfield, Senior Lieutenant Berelidze's pair attacked one F-86 which was pursuing Senior Lieutenant Ugryumov at an altitude of 1,000-1,500 meters. Senior Lieutenant Berelidze shot down one F-86 from a distance of 400 meters at a 14 quartering angle. The pilot: Captain Harold Edward Fischer, service number A02204126, Flight Commander, 39th Air Squadron, 51st Wing, was taken prisoner.
空戰在中朝邊界,朝鮮一方開始.這些飛機速度都在每小時幾百公里,戰進行中,進入中國一方不奇怪,但這和單機有預謀地飛入中國領空偷襲的事,天差地遠.
網上又找到以下評論:
經過多年追訪,費席爾1994年在烏克蘭找到了當日的數名蘇聯飛行員,證實他當日的作戰經過,在他攻擊的三架米格機中,一架重傷,另外,烏格尤莫夫上尉的米格機確實被擊落。而擊落費席爾的除了布勒利茲外(從後追擊的另外兩機),也有可能是蘇聯二戰擊落26架的王牌(韓戰中擊落兩架)葉馬可夫少校的戰果(被費席爾攻擊的三機中的第三機)。不過据專門研究兩岸空戰的張文先生說,時至今日,費席爾在與他的通信中,仍然堅持自己是引擎吸入第一架米格機的碎片才墜落,由於引擎不是馬上停機,還飛了好一陣,跳傘時才會落入中國境內,這也相當合理。