Flight 370's altitude dropped after sharp turn
Excerpts:
"....authorities said
the last transmission from the missing aircraft's reporting system showed it heading to Beijing -- a revelation that appears to
undercut the theory that someone reprogrammed the plane's flight path before the co-pilot signed off with air-traffic controllers for the last time.
That reduces, but doesn't rule out, suspicions about foul play in the cockpit."
"
Military radar tracking shows that the aircraft changed altitude after making a sharp turn over the South China Sea as it headed toward the Strait of Malacca, a source close to the investigation into the missing flight told CNN.
The plane flew as low as 12,000 feet at some point before it disappeared from radar, according to the source."
"Analysts are divided about what the latest information could mean. Some argue it's a sign that mechanical failure sent the plane suddenly off course. Others say there are still too many unknowns to eliminate any possibilities."
"..."
Now we have no evidence the crew did anything wrong," he said. "And in fact,
now, we should be operating with the primary assumption being that something bad happened to that plane shortly after they said good night."
If a crisis on board caused the plane to lose pressure, he said,
pilots could have chosen to deliberately fly lower to save passengers onboard.
"You want to get down to 10,000 feet, because that is when you don't have to worry about pressurization. You have enough air in the atmosphere naturally to keep everybody alive," he said. "So
part of the procedure for a rapid decompression ... it's called a high dive, and you go as quickly as you can down that to that altitude."..."
IOW, it could have been desperate deliberate maneuvers to get air and make an emergency landing in response to a rapid cabin depressurization. Adds more credence to the 'accidental' theory'.