Investigators on Wednesday found the cockpit voice and flight data recorders for the Air France passenger jet that skidded and burned after it landed here on Tuesday in hail, rain and lightning.
The F.A.A. is now in a position to make a similar decision concerning cockpit voice and flight-data recorder requirements for commuter airlines.
The captain, the cockpit voice recorder shows, told the co-pilot "down, push it down" referring to the nose of the plane.
He said it could take weeks to analyze the unidentified sound that investigators found Friday at the end of the cockpit voice recording retrieved from the wreckage.
But the testimony of the meteorologists seemed consistent with Flight 4184's cockpit voice recorder and flight data recorder, transcripts of which were released today.
One of the recorders is to keep track of cockpit voices and other sounds and the other is to keep track of information about a plane's performance.
The local Colombian authorities did retrieve the black boxes with cockpit voice and flight data recordings, and technicians at the National Transportation Safety Board in Washington have analyzed them.
Rescue workers on Monday found cockpit voice and data recorders in the wreckage of an airliner that crashed in the Amazon rain forest last week, killing all 155 people on board.
Chaffee's is believed by some to be the first cockpit voice to report the fire to ground controllers.
Retrieve the two black boxes-the flight's data recorder and the cockpit voice recorder-and bring them to the surface.