my perspective. i had no idea what happened. it was gnarly looking. >> a left turn. >> renae marsh is our aviation correspondent. >> don, it has happened again. two planes with passengers on board get too close in the skies and we now know the faa is investigating. >> turn right. right turn. >> two more passenger planes get too close in the skies. on may 9, united flight 601 and united 437 took off from bush international airport in houston at roughly the same time. shortly after take-off, flight 601 is told to turn right, putting it in the path of the other plane. moments later the controller seems to realize the mistake. >> 601, stop the turn right there, sir. united 601, stop your climbing, stop your turn. >> the two planes came within