Theories Circulate Over Missing Malaysian Airplane

As speculation swirls over the missing Malaysian passenger plane, a woman has come forward to say one of the pilots enaged in "flirtatious" behavior on a previous flight. INSIDE EDITION has the latest.

A pretty passenger is now coming forward to say that one of the pilots of the missing jetliner invited her and her friend into the cockpit and flirted with them. It happened during a flight in 2011, and it's strictly forbidden by airlines.  

Twenty-seven-year-old Jonti Roos spoke to Australia TV and said, "Throughout the whole flight they were talking to us. And they were actually smoking throughout the flight, which I don't think they're allowed to be doing." 

Footage of the Malaysia Airlines pilot appeared on the Today show.  

Roos told the Australian TV show, "Possibly a little bit sleazy—they invited us—well, they asked us if we could arrange our trip to stay in Kuala Lumpur for a few nights so that they could take us out."

There are more bizarre new riddles about the missing plane. Like, why are the passengers cell phones still ringing? Grieving family members say they still hear the ringing when they dial their loved ones, leading to speculation that the cell phones may not be under water.

The longtime girlfriend of one of two Americans on the plane, Philip Wood, was asked on her Facebook page if she was able to get through to his voicemail. She resonded, "No...Tried."

Chilling video has surfaced that shows the exact moment the jetliner disappeared off the radar screen. It changes from yellow to red, then everything goes black.   

Initial reports that the plane went down in the ocean are being disputed.

Incredibly, after disappearing on radar, it reportedly flew 350 miles to the west, possibly even reaching land.

"It changed course...and took a lower attitutde," a senior Malaysian official was quoted as saying.

INSIDE EDITION's Les Trent spoke to former U.S. Department of Transportation Inspector General Mary Schiavo about what might have happened.

Watch Schiavo Discuss Theories Surrounding the Missing Plane.

Trent asked, "A terrorist bomb?"

Schiavo replied, "Low possibility. No one has taken credit, which isn't rare."

"Surface to air missiles?" asked Trent.

"No," stated Schiavo.

Trent asked if it could have been a catastrophic mechanical error.

Schiavo replied, "Most likely. If you look at statistics of past accidents, the most likely scenario is a catastrophic mechanical error exacerbated by a pilot error."

"Pilot suicide?" asked Trent.

"Statistically speaking, that's very low. There just haven't been very many of those," she answered.

The mystery of Flight 370 is being compared to the TV series Lost, where a jetliner breaks apart in midair and then disappears off the face of the earth. 

Now, amateur detectives around the world are joining the search for clues.  

A Google Maps image created an uproar because it supposedly shows the missing plane on the ground in a remote location in Vietnam. Google is debunking the theory, saying in a statement: "The images may have been provided to us several weeks or months ago...and cannot be presumed as a possible crash site."

Meanwhile, authorities have identified the two passengers travelling on stolen passports. They're both Iranians.

Shiavo said, "There is a lot of criminality in providing passports and documenation in the world, but I don't think that means they had anything to do with downing of the plane, necessarily."