( CNN ) -- Could the tragedy of Malaysia Airlines Flight 370 have been the result of human intervention , as many have speculated ? For argument 's sake , let 's begin with an act of terrorism originating from the cabin of the airplane . Making the assumption that an individual , or group of individuals , gained access to the cockpit through a keypad-coded , Kevlar door , how was it done ? Perhaps entry was gained shortly after the now-famous , `` All right , good night , '' message from the co-pilot 40 minutes into the flight . Theoretically , one of the pilots stepped out for a lavatory break ... or stepped back in from a lavatory break . Terrorists rushed into the cockpit at the very moment the door was opened , an action that had to be well-orchestrated . Such an action would require at least two people positioned in the first class cabin to observe the open door . One terrorist would have to disable the pilot and another terrorist would have to rush into the cockpit . With the terrorists in control of the cockpit , they would direct the remaining pilot to steer the airplane on a new course . Or the terrorists themselves had enough piloting skills to fly the airplane . In addition , inside knowledge beyond that of even experienced 777 pilots would have been necessary to locate the ACARS unit from within the depths of the electronics and engineering ( E & E ) compartment in order to disable it such that the system no longer was capable of sending automatic data ; notwithstanding the logistics of pulling up a portion of the first class galley carpet to gain access to the E & E hatch while using some type of threat to prevent passengers from impeding their progress . Why pick that moment ? Where are they going exactly ? Surely , aiming for the middle of the Indian Ocean does n't accomplish their task to make some type of statement . And if one considers a botched hijacking attempt , how would a group of terrorists fail that badly ? For that matter , how could one or a number of crazed terrorists disable a whole 777 to the point it runs out of fuel ? A 9/11 scenario with the passengers attempting to disable the terrorists likely would n't continue for seven hours . And oh , by the way , information disseminated publicly seems to indicate that none of the passengers had suspicious backgrounds . Next , consider the theories that cast one or both of the pilots as the villain . If both pilots participated , a carefully crafted plot between the two would have been constructed . No evidence of such a plot has been forthcoming . Besides , this would have required some type of connection between the captain and the co-pilot beyond their airline employment . No extracurricular connection between the two pilots has been publicly established . Eliminating the two-pilot conspiracy , then only one would have commandeered the airplane . But how would that pilot have disabled the other ? A struggle ? Would the commandeering pilot have prevented the other pilot from reentering the cockpit after a lavatory break ? Then what ? Both the captain and co-pilot were equally qualified to fly the 777 . If the erratic climbs and descents reported concerning the plane are credible , why the gyrations ? Although transport category airplanes are sensitive to hand flying at high altitudes , only an amateur would demonstrate that lack of skill . And to what end would one of the pilots want to seize a 777 ? Once again , would the purpose really be to run the airplane out of fuel in the middle of the Indian Ocean ? How about suicide ? Death by airplane seems farfetched in this case . Why wait till the middle of the ocean to make a statement ? Why not attempt suicide immediately after takeoff ... or just prior to landing in Bejing ? Was human intervention involved ? Absolutely . But my gut theory as a 30-year airline veteran is that human intervention was involved to save an airplane and its passengers in crisis , not to commit foul play .
Pilot Les Abend doubts theories that hijackers or pilots brought down Flight 370 . The pilot of Malaysia Airlines flight MH370, which disappeared on March 8, 2014, said he was skeptical about the theory advanced by some aviation experts and governments that a terrorist attack caused its disappearance. Abend : There 's no clue of a plot involving both pilots , and it would likely take both . He says hijackers would have had touble getting into cockpit and disabling equipment .