March 1, 1915 was the scheduled date for a heavy attack on the rebels. The mission was to fly over the Valley of Santa Maria, to launch bombs on the rebels' stronghold, and to observe and direct the shots of the artillery and the advance of the infantry. Two Morane-Saulnier aircraft took off, but the attack was canceled due to adverse weather conditions, for the aircraft piloted by then lieutenant-aviator Ricardo Kirk suffered a crash, of which he was killed.
