As the already-desperate situation now irrefutable with the scourge of the new Zero fighter, the Chinese Air Force high-command issued an all-points bulletin to avoid combat engagement against the new air-superiority fighter, however, Chinese fighters would continue with fatalistic courage to face the Zero on numerous occasions, including another large-scale dogfight over Chengdu on 14 March 1941, that saw the Japanese Zero fighters employ new tactics to avoid near-deadly mistakes from the 13 September 1940 air-battle experience; the intense dogfight over Chengdu was another devastatingly dark day in the tragic chapters of the Chinese Air Force in the war, as eight pilots were killed, including top-ace fighter pilots Maj. John Huang Xinrui and Capt. Cen Zeliu, along with the young "2"Lt. Lin Heng (younger brother of renown architect Phyllis Lin Huiyin).