Skip to main content

Pilots, not computers, should fly planes

By Robert P. Mark
updated 1:06 PM EST, Wed December 11, 2013
In this handout photo released by the National Transportation Safety Board, Asiana Airlines Flight 214 sits just off the runway at San Francisco International Airport on Sunday, July 7. The Boeing 777 coming from Seoul, South Korea, crashed on landing on Saturday, July 6. Three passengers, all girls, died as a result of the first notable U.S. air crash in four years. In this handout photo released by the National Transportation Safety Board, Asiana Airlines Flight 214 sits just off the runway at San Francisco International Airport on Sunday, July 7. The Boeing 777 coming from Seoul, South Korea, crashed on landing on Saturday, July 6. Three passengers, all girls, died as a result of the first notable U.S. air crash in four years.
HIDE CAPTION
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
Plane crash-lands in San Francisco
<<
<
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
>
>>
STORY HIGHLIGHTS
  • This week, public hearings take place on the crash of an Asiana Airlines Boeing 777
  • Robert Mark: Have pilots become too dependent on computer systems to fly planes?
  • He says it's a serious problem when pilots get overwhelmed by technology
  • Mark: We need better cockpit designs and train pilots more on hands-on flying

Editor's note: Robert P. Mark is a pilot, award-winning journalist and publisher of Jetwhine.com, a website about the aviation industry. He's been teaching people to fly since 1974. He also teaches at Northwestern University's Medill School of Journalism and is author of the upcoming book, "Loss of Control."

(CNN) -- As the National Transportation Safety Board begins public hearings on Wednesday into the crash of an Asiana Airlines Boeing 777 in San Francisco in July, one question is certain to keep popping up: Have pilots become too dependent on computer systems to fly their airplanes?

The simple answer is yes.

When pilots become confused or overwhelmed by technology that was supposed to make their jobs easier or when they find themselves unable to regain control of their aircraft when a component in the computer system fails, the aviation industry needs to seriously assess the problem.

Robert P. Mark
Robert P. Mark

Modern airliners use computers to handle just about every function imaginable -- from starting the engines and monitoring the cabin environment for the right temperature and pressure balance to handling the complex navigation necessary to fly an airplane safely between South Korea and San Francisco.

Shaking free of any of the technology anywhere along the way is very difficult because so many of the aircraft's systems depend upon each other to work together.

An airliner's automation today can handle almost all of a pilot's duties more smoothly and with better precision than any human. Computers have become so tightly integrated into the operation of an airliner, however, that the real problem is trying to carve out a few tasks the pilots can still call their own. One of the last completely human tasks is landing the airplane.

With computers being tasked to perform so much of the work on each and every flight, pilots find their jobs have changed dramatically. Whereas once they were captains of the sky able to manipulate the flight controls to maneuver a 500,000-pound airplane through stormy skies and still plunk 300 people down at the destination safely, they now find themselves to be mere system monitors.

New details emerge in plane crash
A closer look at plane's evacuation

Today, pilots program the computers before takeoff, making sure all the panel lights are green and then watch as the computers fly the aircraft most of the way.

Is it any wonder that with so little practice actually manually handling the aircraft's flight controls and making many of the critical decisions that are now handed off to the computers that the pilots often find their minds wandering?

We shouldn't be surprised that this happens. We all grow easily bored when we're forced to watch someone, or something, perform a task for hours on end, especially when we've been told that the computer pilot in this case probably flies better than we do anyway, at least most of the time.

Consider Asiana 214's arrival at San Francisco.

Facts uncovered during the initial investigation pointed to the pilot's failure to notice that a critical system called the auto-throttles was accidentally turned off. Auto-throttles let the computers control how much power the aircraft's engines produce to maintain a given airspeed. With the auto-throttle switched off, the pilots thought the computers were controlling power and airspeed, when in actuality, the computers were on standby. Basically, it means that no one was actually controlling the aircraft's altitude at that time.

Without enough engine power, the aircraft's speed dropped too low to allow it to continue flying and it struck a dike just short of the runway, ripping away the landing gear. Three people died while over 180 people were injured.

During the final few seconds of the approach to San Francisco, the pilots simply sat in the cockpit, apparently mesmerized by the view of the bay, assuming the computer was flying.

The big question of course is why didn't they notice the computers were on standby?

With the recent release of a study, "Operational Use of Flight Path Management Systems," the aviation industry has begun to identify weaknesses in our aviation safety system, including potential problems in human-computer interactions.

The report recommends improving pilot training to include more hands-on flying practice and more intensive classroom study about technology's shortcomings. It also calls for better cockpit designs that reduce potentially confusing messages, and up-to-date training to keep federal regulators ahead of the technology curve.

The study has been turned over to the FAA, but no timeline or next steps in the process have been outlined. Without a defined plan of action soon, we may see another crash on the horizon before too long.

Follow us on Twitter @CNNOpinion

Join us on Facebook/CNNOpinion

The opinions expressed in this commentary are solely those of Robert P. Mark.

ADVERTISEMENT
Part of complete coverage on
updated 8:31 AM EDT, Fri August 22, 2014
James Dawes says calling ISIS evil over and over again could very well make it harder to stop them.
updated 8:23 AM EDT, Fri August 22, 2014
Retired Lt. Gen. Mark Hertling says he learned that the territory ISIS wants to control is amazingly complex.
updated 10:50 AM EDT, Thu August 21, 2014
David Weinberger says Twitter and other social networks have been vested with a responsibility, and a trust, they did not ask for.
updated 7:03 AM EDT, Fri August 22, 2014
John Inazu says the slogan "We are Ferguson" is meant to express empathy and solidarity. It's not true: Not all of us live in those circumstances. But we all made them.
updated 3:51 PM EDT, Wed August 20, 2014
Cerue Garlo says Liberia is desperate for help amid a Ebola outbreak that has touched every aspect of life.
updated 1:42 PM EDT, Thu August 21, 2014
Eric Liu says Republicans who want to restrict voting may win now, but the party will suffer in the long term.
updated 11:38 AM EDT, Thu August 21, 2014
Jay Parini: Jesus, Pope and now researchers agree: Wealth decreases our ability to sympathize with the poor.
updated 8:00 AM EDT, Thu August 21, 2014
Judy Melinek offers a medical examiner's perspective on what happens when police kill people like Michael Brown.
updated 6:03 PM EDT, Tue August 19, 2014
It used to be billy clubs, fire hoses and snarling German shepherds. Now it's armored personnel carriers and flash-bang grenades, writes Kara Dansky.
updated 1:27 PM EDT, Wed August 20, 2014
Maria Haberfeld: People who are unfamiliar with police work can reasonably ask, why was an unarmed man shot so many times, and why was deadly force used at all?
updated 5:52 PM EDT, Mon August 18, 2014
Ruben Navarrette notes that this fall, minority students will outnumber white students at America's public schools.
updated 5:21 PM EDT, Tue August 19, 2014
Humans have driven to extinction four marine mammal species in modern times. As you read this, we are on the brink of losing the fifth, write three experts.
updated 7:58 AM EDT, Tue August 19, 2014
It's been ten days since Michael Brown was killed, and his family is still waiting for information from investigators about what happened to their young man, writes Mel Robbins
updated 8:42 AM EDT, Mon August 18, 2014
The former U.K. prime minister and current U.N. envoy says there are 500 days left to fulfill the Millennium Goals' promise to children.
updated 1:38 PM EDT, Wed August 20, 2014
Peter Bergen says the terror group is a huge threat in Iraq but only a potential one in the U.S.
updated 4:06 PM EDT, Mon August 18, 2014
Pepper Schwartz asks why young women are so entranced with Kardashian, who's putting together a 352-page book of selfies
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT