World Video | Defence | Foreign Affairs | Natural Events | Trade | NZ in World News | NZ National News Video | NZ Regional News | Search

 


MH370: Human Input Essential for Flight Changes

MH370: Human Input Essential for Flight Changes

The disappearance of Flight MH370 could have only involved human input, according to a veteran Boeing 777 check captain.

Speaking exclusively to www.AirlineRatings.com the check captain said that given the facts we know, for MH370 to end its flight in the southern Indian Ocean, "human input was essential".

"We are not dealing with an out of control plane," he said.

"It is impossible for the Boeing 777 to fly this course by itself."

MH370 made three course changes and apparently at least two altitude changes, according to the Malaysian military.

"To change course requires the pilot to either disengage the flight management computer and dial in a new heading to the autopilot/flight director or fly manually," the check captain said.

The jet then apparently increased its altitude to 45,000ft according to returns to Malaysian military radar, before descending as low as 5000ft.

"This would have required input to reselect altitude in the autopilot/flight director or manually to fly the plane and typically reduce engine thrust," the check captain said.

MH370 then made two more turns - the first to the north-west and then due south.

According to the check captain, the 777 would have had to climb back to its cruising altitude of 35,000ft because it would never have reached the southern Indian Ocean with the fuel load it had.

"At say 12,000ft it burns eight tons of fuel an hour but we can only fly at a top speed of 340 knots (629km/h)," the check captain said.

"But at 35,000ft we would burn seven tons of fuel an hour and fly at 480 knots (890km/h)." If MH370 had stayed at 12,000ft it would have reached only Carnarvon.

When MH370 ran out of fuel and if nobody was in control, the Boeing 777 would not have glided down slowly, according to the check captain.

"With no engine power and no one flying it would have gone into a spiral and straight down possibly reaching supersonic speeds," he said.

"Parts would have started to break off like ailerons and trim tabs."

However, within one minute of the engines quitting, the plane's auxiliary power unit located in the tail, with its own fuel supply, would have started automatically and brought power back to the electrical systems.

This may account for the final partial ping from the plane picked up by Inmarsat at 8.19am (local).

No response was received from the plane at 9.11am, when the ground earth station sent the next log on/log off message or ping.

This indicates that the plane was no longer logged on to the network and is consistent with the limit of its range with its fuel load.


About AirlineRatings.com

AirlineRatings was launched in June 2013 and safety and product rates 450 airlines using its unique seven-star rating system. It has been used by millions of passengers from 232 countries. It has become the industry standard for safety and product rating. The editorial team is arguably one of the world’s most experienced with almost 40 international and national awards. They have also authored or co-authored more than 27 industry books.

© Scoop Media

 
 
 
 
 
World Headlines

 


Ebola Cases No Longer Rising In Guinea And Liberia

In Conakry, Guinea, a mobilizer teaches children about proper handwashing techniques, which help prevent the spread of diseases, including Ebola. Photo: UNICEF/Timothy La Rose More>>

ALSO:

UN: Alleged Mass Rape In North Darfur

UNAMID commanders from Rwanda and Ethiopia exhange duties in Tabit, North Darfur, to escort a convoy of World Food Programme (WFP) trucks travelling from El Fasher to Shangil Tobaya. Photo: UNAMID/Albert González Farran More>>

Illegal Fishermen Encroach On World’s Most Isolated Tribe

Due to their isolation the Sentinelese of India's Andaman Islands are the most vulnerable society on the planet. They face increasing threats from illegal fishermen who are targeting their waters. More>>

World War: Nearly 1,000 Dead Amid Shaky Ukraine Ceasefire

In latest report, UN rights office says nearly 1,000 dead amid shaky Ukraine ceasefire More>>

ALSO:


Palestinian Activists Cross Apartheid Wall

Friday morning around 50 Palestinian and international activists used makeshift bridges to cross the Apartheid wall between Qalandiya and Northern Jerusalem. This non-violent direct action was in response to the restrictions Israel had placed on Palestinian ... More>>

Police And Crime: FBI Warns Ferguson Decision ‘Will Likely’ Lead To Violence

As the nation waits to hear whether a Missouri police officer will face charges for killing unarmed teenager Michael Brown in Ferguson , Mo., the FBI is warning law enforcement agencies across the country that the decision “will likely” lead ... More>>

UK Local Council Boycotts Israeli Squatter Products

A British local council has voted to boycott products made in Jewish squatter colonies in the Israeli-occupied Palestinian West Bank, one of the first such moves by an elected body in the UK. More>>

Massive Illegal Forest Clearance Threatens Uncontacted Tribe

Brazilian rancher Marcelo Bastos Ferraz has rejected the Ayoreo's plea to stop destroying the forest inhabited by their uncontacted relatives . © OPIT More>>


Get More From Scoop

 
 
 
 
 
World
Search Scoop  
 
 
Powered by Vodafone
NZ independent news