Thursday , 21 September 2017
MH370: Plane might not crash into Vietnam Ocean but somewhere else
PHOTO: INTERNET

MH370: Plane might not crash into Vietnam Ocean but somewhere else

MALAYSIA – A Citizen just lately despatched in an e mail to us in regard to the lacking Malaysia Airline MH370. He defined that the aircraft won’t have crash into Vietnam Ocean as a result of speedy decompression and lack of structural integrity of the airplane with the next:

“Has anybody thought-about if the under FAA Airworthiness Directive might be a clue the MH370 investigation?

A November 2013 FAA Airworthiness Directive for the 777

http://www.gpo.gov/fdsys/pkg/FR-2013-09-26/html/2013-23456.htm

SUMMARY: We suggest to undertake a brand new airworthiness directive (AD) for
sure The Boeing Company Model 777 airplanes. This proposed AD was 
prompted by a report of cracking within the fuselage pores and skin beneath the 
satellite tv for pc communication (SATCOM) antenna adapter. This proposed AD 
would require repetitive inspections of the seen fuselage pores and skin and 
doubler if put in, for cracking, corrosion, and any indication of 
contact of a sure fastener to a bonding jumper, and restore if 
mandatory. We are proposing this AD to detect and proper cracking and 
corrosion within the fuselage pores and skin, which might result in speedy decompression 
and lack of structural integrity of the airplane.
Summary: It’s believable that a fuselage part close to the SATCOM antenna adapter failed, disabling satellite tv for pc based mostly –  GPS, ACARS, and ADS-C/H – communications, and resulting in a sluggish decompression that left all occupants unconscious. If such decompression left the plane intact, then the autopilot would have flown the deliberate route or in any other case maintained its heading/altitude till gasoline exhaustion.
sluggish decompression (e.g. from a golfball-sized gap) would have regularly impaired and confused the pilots earlier than cabin altitude (strain) warnings sounded.
Chain of occasions:
  • Likely fuselage failure close to SATCOM antenna adapter, disabling some or all of GPS, ACARS, ADS-B, and ADS-A antennas and techniques. 
  • Thus, solely main radars would detect the aircraft. Primary radar vary is often lower than 100nm, and is usually ineffective at excessive altitudes.

If the decompression was sluggish sufficient, it’s attainable the pilots didn’t understand to placed on oxygen masks till it was too late. (See Helios 522)

  • Also explains why one other Pilot thirty minutes forward heard “mumbling” from MH370 pilots.
  •  (VHF comms can be unaffected by SATCOM gear failure.)

With incapacitated pilots, the 777 would proceed to fly on Autopilot – programmed to take care of cruise altitude and comply with the programmed route.

Other ideas:
  • The aircraft was outfitted with mobile communication hardware, provided by AeroMobile, to offer GSM providers by way of satellite tv for pc. However that is an aftermarket product; it’s not related via SATCOM (so far as I know).
  • This explains why 19 households signed a press release  alleging they have been capable of name the MH370 passengers and get their telephones to ring, however with no response.
  • When Malaysian Airlines tried to name the telephone numbers a day later, the telephones didn’t ring. By this time, gasoline would have been exhausted.

Note:  777 Passenger Oxygen masks don’t deploy till cabin altitude reaches thirteen,500. Passengers have been possible already unconscious by then, if it was a sluggish decompression. No confirmed particles has been discovered anyplace close to the search space, according to the aircraft having flown for hours after it misplaced radar contact.

Conclusion:
This was possible not an “explosive decompression” or “inflight disintegration.” This was probably a sluggish decompression that progressively disadvantaged all crew/passengers of oxygen, leaving the autopilot to proceed alongside the route autonomously.
The plane could also be on the flooring of the East China Sea, Sea of Japan, or the Pacific Ocean hundreds of miles northeast from the present search zone.
I’ve circled a possible search area in Red on this map; it that assumes that MH370’s autopilot continued alongside the programmed route.
image
Recommendations:
• Investigators ought to get hold of knowledge logs from main radars all through mainland China that may have been alongside the deliberate route. They could also be one of the best clue as to the trajectory of the plane.
• Investigators ought to get hold of all passengers’ cellular phone log and site knowledge. The timing of the final profitable mobile connection (ring/SMS/knowledge-packet) can predict how lengthy the aircraft was within the air. iPhone/iOS location (GPS) knowledge might be obtainable from Apple if subpoenaed. Android location knowledge could also be out there from Google.
• Add a secondary search area to incorporate a 300nm radius round Beijing, specializing in surrounding our bodies of water. Using deliberate routing trajectory, recognized autopilot logics, gasoline portions, and climate patterns, it might be attainable to outline a smaller 50nm * 50nm search area. Consider operating the above state of affairs in MH’s 777-200ER full flight simulator.
• Boeing ought to present experience concerning the SATCOM antenna schematics and autopilot/navigation logic, in order to assist plot this second search area.
-WLE/edt
MH370: Plane might not crash into Vietnam Ocean but somewhere else
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