41.  The two pilots said that at one point, someone broke in on the Federal Aviation Administration frequency being monitored by the third pilot.

42.  The two pilots were based in Los Angeles.

43.  The voice recorder can shed light on what happened because it records conversations between the two pilots.

44.  The two pilots and three crew members survived.

45.  The two pilots safely ejected.

46.  The whereabouts of the other pilots is unknown, the officials said.

47.  Unable to read the airspeed indicator, altimeter and other crucial readings, the two pilots begin arguing about what to do.

48.  A Marine Corps jet crashed during a training exercise Monday, but the two pilots ejected and did not suffer serious injuries, a military spokesman said.

49.  A Polish air force training jet crashed in a field outside Warsaw on Tuesday, killing the two pilots.

50.  After breathing oxygen the two pilots felt better.