Aviation journalist Christine Negroni - her forthcoming book The Crash Detectives: Investigating the World’s Most Mysterious Air Disasters
The theory which forms the crux of Negroni’s book is that the Malaysian pilots were similarly suffering from hypoxia, altitude sickness which deprives the body of adequate oxygen and thus impairs judgment.
MH 370’s rapid loss of cabin pressure debilitated the crew, leading the pilots to make rash decisions—for example, the first officer meant to transmit a distress signal but instead turned off the transponder and severed radar contact with the ground.
....... one of the MH 370 pilots (First Officer Fariq Abdul Hamid) remembered to put his oxygen mask on and turn the plane back towards Malaysia. After about 30 minutes, however, he too lost consciousness and the plane descended into the Indian Ocean.
“He was conscious enough to fly the airplane but not sensible enough to do the right thing,” Negroni said. “He made illogical decisions until he stopped manipulating the aircraft.”
By the time Malaysia Airlines began searching for the plane, five hours had passed and MH 370 was long gone.
The Malaysian defense and transport ministries wanted to protect themselves from liability, so they immediately blamed Vietnam’s civil aviation authority for not tracking the plane while it was in Vietnamese airspace.
“It was an orchestra of confusion,” Negroni said. “It’s a bit mystifying why they weren’t more alarmed.”
http://observer.com/2016/09/has-this-aviation-journalist-solved-the-mystery-of-mh-370/