Visible crew/equipment: When 1969 Frank overhears 1999 Shepard on the ham radio telling John, "Time to die, Sullivan," in two following shots of the same angle the actor's white T-mark is visible on the rug, between 1969 Shepard's feet. First, we see it just as Julia leaps onto Shepard, and then after Frank shouts for Johnny to run, we see it again just as Johnny runs toward the camera (before Shepard's hand is blown off). (01:49:35)
Answer: Firemen never get rid of their gear in a fire, especially not a helmet. He was unable to reach via radio his crew and when he threw his helmet out the window, it told his crew that he was in trouble and what his position is. They also then have a clue that he is still alive.
shortdanzr ★