Niluksi Koswanage Reuters Tue, 11 Mar 2014 08:44 CDT
The new 'last location' of the missing Malaysian jet
The Malaysian military believes an airliner missing for almost four days with 239 people on board flew for more than an hour after vanishing from air traffic control screens, changing course and travelling west over the Strait of Malacca, a senior military source said.
Malaysian authorities have previously said flight MH370 disappeared about an hour after it took off from Kuala Lumpur for the Chinese capital Beijing.
At the time it was roughly midway between Malaysia's east coast town of Kota Bharu and the southern tip of Vietnam, flying at 35,000 ft (10,670 metres).
"It changed course after Kota Bharu and took a lower altitude. It made it into the Malacca Strait," the military official, who has been briefed on investigations, told Reuters.
The Strait of Malacca, one of the world's busiest shipping channels, runs along Malaysia's west coast.
Earlier on Tuesday, Malaysia's Berita Harian newspaper quoted air force chief Rodzali Daud as saying the Malaysia Airlines plane was last detected by military radar at 2:40 a.m. on Saturday, near the island of Pulau Perak at the northern end of the Strait of Malacca. It was flying at a height of about 9,000 metres (29,500 ft), he was quoted as saying.
"The last time the flight was detected close to Pulau Perak, in the Melaka Straits, at 2.40 a.m. by the control tower before the signal was lost," the paper quoted Rodzali as saying.
A non-military source familiar with the investigations said the report was being checked.
"This report is being investigated by the DCA (Department of Civil Aviation) and the search and rescue team," the source said. "There are a lot of such reports."
The time given by Rodzali was an hour and 10 minutes after the plane vanished from air traffic control screens over Igari waypoint, midway between Malaysia and Vietnam.
There was no word on what happened to the plane thereafter.
If the reports from the military are verified, it would mean the plane was able to maintain a cruising altitude and flew for about 500 km (350 miles) with its transponder and other tracking systems apparently switched off.
Malaysia has extended the massive search operation for the plane to the Malacca Strait after initially focusing on the South China Sea.
On the 4th day since disappearance,now only d air force chief blurted out that the plsnce was last detected flying over kedah and pulau perak? Is he a retard? Why an important info like this only surface this late when the SAR are searching at the wrong place!lives could hv been saved but now if it' s really on the other side according to d radar,then the whole msian govt wil go down as history most retard goons
If the RMAF knows the fact of the whereabouts of the flight MH370 why the fuck is this Air Force Cheif Rodzali lets the SAR teams chasing wild gooose in the South Chine sea. Why he sooooo stupid not to disclose this utmost important infor to the DCA.................................If what published in BH today is true ........Really fuck you RODzali
Re the disappearance of MAS 370, has anyone give thought to the possibility it might have anything to do with UFO/Alien Abductions as the various videos on Astro programmes of visitations of aliens with ultra high technologies and silent crafts? Remember the disappearance of the squadron of 7 fighter planes and the many other planes and ships in the Bermuda Triangle! The illegally booted out ex-MB of Perak, Nizar, may be on to something concrete when he tweeted not out of mischief but from public concern that we have just been the target of Close Encounters of the Third Kind i.e. Abduction by aliens! The authorities whether local and foreign should think outside the box and contact experts in this field in the international arena!
We flop again and again with all these twist and turn statement coming from their mouths, how despairing and anguish this would have cause to the families But then again we reacted poorly and under achieve under such calamity, we thought we are not ready yet for being label as a develope nation just yet
A plane flying at only 1000M lower than its crusing attitude, over the West Coast of Peninsula Malaysia, crossing one of the busiest flight route, yet it was not picked up by the civilian air control? How did RMAF know that little blip on the radar belonged to MH370?
SUMMARY: We propose to adopt a new airworthiness directive (AD) for
certain The Boeing Company Model 777 airplanes. This proposed AD was
prompted by a report of cracking in the fuselage skin underneath the
satellite communication (SATCOM) antenna adapter. This proposed AD
would require repetitive inspections of the visible fuselage skin and
doubler if installed, for cracking, corrosion, and any indication of
contact of a certain fastener to a bonding jumper, and repair if
necessary. We are proposing this AD to detect and correct cracking and
corrosion in the fuselage skin, which could lead to rapid decompression
and loss of structural integrity of the airplane.
Summary: It’s plausible that a fuselage section near the SATCOM antenna adapter failed, disabling satellite based - GPS, ACARS, and ADS-B/C - communications, and leading to a slow decompression that left all occupants unconscious. If such decompression left the aircraft intact, then the autopilot would have flown the planned route or otherwise maintained its heading/altitude until fuel exhaustion.
A slow decompression (e.g. from a golfball-sized hole) would have gradually impaired and confused the pilots before cabin altitude (pressure) warnings sounded.
Chain of events:
Likely fuselage failure near SATCOM antenna adapter, disabling some or all of GPS, ACARS, ADS-B, and ADS-C antennas and systems.
Thus, only primary radars would detect the plane. Primary radar range is usually less than 100nm, and is generally ineffective at high altitudes.
If the decompression was slow enough, it’s possible the pilots did not realize to put on oxygen masks until it was too late. (See Helios 522)
(VHF comms would be unaffected by SATCOM equipment failure.)
With incapacitated pilots, the 777 would continue to fly on Autopilot - programmed to maintain cruise altitude and follow the programmed route.
The plane was equipped with cellular communication hardware, supplied by AeroMobile, to provide GSM services via satellite. However this is an aftermarket product; it’s not connected through SATCOM (as far as I know).
When Malaysian Airlines tried to call the phone numbers a day later, the phones did not ring. By this time, fuel would have been exhausted.
Note: 777 Passenger Oxygen masks do not deploy until cabin altitude reaches 13,500. Passengers were likely already unconscious by then, if it was a slow decompression. No confirmed debris has been found anywhere near the search area, consistent with the plane having flown for hours after it lost radar contact.
This was likely not an “explosive decompression” or “inflight disintegration.” This was likely a slow decompression that gradually deprived all crew/passengers of oxygen, leaving the autopilot to continue along the route autonomously.
The aircraft may be at the floor of the East China Sea, Sea of Japan, or the Pacific Ocean thousands of miles northeast from the current search zone.
I’ve circled a probable search space in Red on this map; it that assumes that MH370’s autopilot continued along the programmed route.
• Investigators should obtain data logs from primary radars throughout mainland China that would have been along the planned route. They may be the best clue as to the trajectory of the aircraft.
• Investigators should obtain all passengers’ cell phone log and location data. The timing of the last successful cellular connection (ring/SMS/data-packet) can predict how long the plane was in the air. iPhone/iOS location (GPS) data may be available from Apple if subpoenaed. Android location data may be available from Google.
• Add a secondary search space to include a 300nm radius around Beijing, focusing on surrounding bodies of water. Using planned routing trajectory, known autopilot logics, fuel quantities, and weather patterns, it may be possible to define a smaller 50nm * 50nm search space. Consider running the above scenario in MH’s 777-200ER full flight simulator.
• Boeing should provide expertise about the SATCOM antenna schematics and autopilot/navigation logic, so as to help plot this second search space.