KUALA LUMPUR, Malaysia (AP) — A Malaysian investigation into the missing
flight 370 has concluded that one or more people with flying experience
switched off communications devices and deliberately steered the
airliner off-course, a Malaysian government official involved in the
investigation said Saturday.
The official called the
disappearance a hijacking, though he said no motive has been established
and no demands have been made known. It's not yet clear where the plane
ended up, said the official, who spoke on condition of anonymity
because he was not authorized to brief the media.
The official
said a deliberate takeover of the plane was no longer a theory. "It is
conclusive," he said, indicating that investigators were ruling out
mechanical failure or pilot error in the disappearance.
He said
evidence that led to the conclusion were signs that the plane's
communications were switched off deliberately, data about the flight
path and indications the plane was steered in a way to avoid detection
by radar.
The Boeing 777's communication with the ground was
severed just under one hour into a Malaysia Airlines flight March 8 from
Kuala Lumpur to Beijing. Malaysian officials previously have said radar
data suggest it may have turned back toward and crossed over the
Malaysian peninsula after setting out on a northeastern path toward the
Chinese capital.
Earlier, an American official told The
Associated Press that investigators are examining the possibility of
"human intervention" in the plane's disappearance, adding it may have
been "an act of piracy."
While other theories are still being
examined, the U.S. official said key evidence suggesting human
intervention is that contact with the Boeing 777's transponder stopped
about a dozen minutes before a messaging system on the jet quit. Such a
gap would be unlikely in the case of an in-flight catastrophe.
The
Malaysian official said only a skilled aviator could navigate the plane
the way it was flown after its last confirmed location over the South
China Sea. The official said it had been established with a "more than
50 percent" degree of certainty that military radar had picked up the
missing plane after it dropped off civilian radar.
Why anyone
would want to do this is unclear. Malaysian authorities and others will
be urgently investigating the backgrounds of the two pilots and 10 crew
members, as well the 227 passengers on board.
Some experts have
said that pilot suicide may be the most likely explanation for the
disappearance, as was suspected in a SilkAir crash during a flight from
Singapore to Jakarta in 1997 and an EgyptAir flight in 1999.
A
massive international search effort began initially in the South China
Sea where the plane's transponders stopped transmitting. It has since
been expanded onto the other side of the Malay peninsula up into the
Andaman Sea and into the Indian Ocean.
Scores of aircraft and ships from 12 countries are involved in the search.
The
plane had enough fuel to fly for at least five hours after its last
known location, meaning a vast swath of South and Southeast Asia would
be within its reach. Investigators are analyzing radar and satellite
data from around the region to try and pinpoint its final location,
something that will be vital to hopes of finding the plane, and
answering the mystery of what happened to it.
The USS Kidd
arrived in the Strait of Malacca late Friday afternoon and will be
searching in the Andaman Sea, and into the Bay of Bengal. It uses a
using a "creeping-line" search method of following a pattern of equally
spaced parallel lines in an effort to completely cover the area.
A
P-8A Poseidon, the most advanced long range anti-submarine and
anti-surface warfare aircraft in the world, will arrive Saturday and be
sweeping the southern portion of the Bay of Bengal and the northern
portion of the Indian Ocean. It has a nine-member crew and has advanced
surveillance and reconnaissance capabilities, the department of defense
said in a statement.
Another U.S. official, who also spoke on
condition of anonymity, said investigators looking for the plane have
run out of clues except for a type of satellite data that has never been
used before to find a missing plane, and is very inexact.
The
data consists of attempts by an Inmarsat satellite to identify a broad
area where the plane might be in case a messaging system aboard the
plane should need to connect with the satellite, said the official. The
official compared the location attempts, called a "handshake," to
someone driving around with their cellphone not in use. As the phone
from passes from the range of one cellphone tower to another, the towers
note that the phone is in range in case messages need to be sent.
In
the case of the Malaysian plane, there were successful attempts by the
satellite to roughly locate the Boeing 777 about once an hour over four
to five hours, the official said. "This is all brand new to us," the
official said. "We've never had to use satellite handshaking as the best
possible source of information."
The handshake does not transmit
any data on the plane's altitude, airspeed or other information that
might help in locating it, the official said. Instead, searchers are
trying to use the handshakes to triangulate the general area of where
the plane last was known to have been at the last satellite check, the
official said.
"It is telling us the airplane was continuing to
operate," the official said, plus enough information on location so that
the satellite will know how many degrees to turn to adjust its antenna
to pick up any messages from the plane.
The official confirmed
prior reports that following the loss of contact with the plane's
transponder, the plane turned west. A transponder emits signals that are
picked up by radar providing a unique identifier for each plane along
with altitude. Malaysian military radar continued to pick up the plane
as a whole "paintskin" — a radar blip that has no unique identifier —
until it traveled beyond the reach of radar, which is about 320
kilometers (200 miles) offshore, the official said.
The New York
Times, quoting American officials and others familiar with the
investigation, said radar signals recorded by the Malaysian military
appear to show the airliner climbing to 45,000 feet (about 13,700
meters), higher than a Boeing 777's approved limit, soon after it
disappeared from civilian radar, and making a sharp turn to the west.
The radar track then shows the plane descending unevenly to an altitude
of 23,000 feet (7,000 meters), below normal cruising levels, before
rising again and flying northwest over the Strait of Malacca toward the
Indian Ocean, the Times reported.
- Yahoo News
http://news.yahoo.com/malaysian-official-says-missing-plane-hijacked-051507084.html?.tsrc=yahoo
No comments:
Post a Comment