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Time to Review FAA Gadget Policies
Nick Bilton, Lead Technology writer for The New York Times Bits Blog, called the FAA to complain about its gadget policies on flights and got an unexpected reply. Laura J. Brown, deputy assistant administrator for public affairs, said that it might be time to change some of those policies and promised they'd take a “fresh look” at the use of personal electronics on planes. From the article: "Yes, you read that correctly. The F.A.A., which in the past has essentially said, 'No, because I said so,' is going to explore testing e-readers, tablets and certain other gadgets on planes. The last time this testing was done was 2006, long before iPads and most e-readers existed. (The bad, or good, news: The F.A.A. doesn’t yet want to include the 150 million smartphones in this revision.)"
I've been involved in this for a long time, including the Supplemental Type Certification and FAA processes to get WiFi on aircraft. Most of what happens to get you to turn them off during takeoff and landing has little to do with interference, it's to get your attention and to get you to follow directions. All of that is really important to your safety more-so than a nudeo-scan 5000 operated by the TSA. The other aspects such as Cellular Phone use during flights also isn't a technical risk to the aircraft but the annoyance factor to other passengers as well as coordination possibilities for terrorist activities.. Think "Ackbar we're over Chicago, what do I do?" That's why the damn in-flight position tracking on larger aircraft suddenly turns off when you're close to arrival. Some of this is a bit silly because we've allowed WiFi on planes and you can log into flight tracker or use the GOGO website to track where you are. The safety feature there is that it shuts off below 10,000 feet automatically and there's always a breaker in the cockpit that the pilots can use to shut it off.
If the FAA wants to review this then great but there's a lot more to it than just "possible" interference with aircraft systems and I don't expect that the airlines will open up the floodgates and let you use anything you want, when you want either just because of the annoyance issues.
Harrison's Postulate - "For every action there is an equal and opposite criticism"
"Earlier this year, aviation journalist Christine Negroni obtained a copy of a confidential report from the International Air Transport Association that indicated the use of personal electronics on commercial aircraft had interfered with flight deck operations in 75 instances over the past seven years.
What kind of problems? I’m not sure you want to know. All cockpit systems were affected, flight controls, communication, navigation and emergency warnings. . . .
And
The use of PEDs [Personal Electronic Devices. –DS] on board will not – I repeat – will not cause a plane to go tumbling through the sky like something in a made-for-TV-disaster movie. What PEDs can and in fact have already done, is create a distraction for the flight crew. When that distraction comes at the wrong time it can lead to pants-wetting episodes and maybe even disaster. And that is why boys and girls, devices are supposed to be turned off as in OFF, below 10 thousand feet. The concept is that with sufficient altitude below us there is time to address any pesky error messages that might wind up being transmitted to the cockpit. Only now we know that those messages are pretty darn common."
Handhelds on Airplanes a Bigger Problem Than You Think
Radio communication with ATC is an analog band just above FM radio, and involves shielded cables running from a shielded radio to one or more antennas located outside the body of the aircraft (which is a Faraday cage at those frequencies unless one of the doors is open, and probably even then).
Based on that, I'd rate the odds of a cell phone call interfering with an ATC call just south of the odds of getting hit by a meteor while dancing the Macarena. Actually, scratch that. It's more like the odds of dancing the Macarena creating a statistically significant increase in your risk of getting hit by a meteor.
The problem with using incident reports as a means of determining whether something is safe or not is that correlation is not causation. The fact that the autopilot came back online after four people shut off their laptops does not mean that those laptops caused the failure. It means that the autopilot came back on after those laptops were disabled. In much the same way, it rained in the SF Bay Area after I used the bathroom this morning, so obviously my toilet causes rain.... It's a lot more likely that the autopilot kicked out due to a transient problem in some sensor, a frozen pitot tube that thawed out, a power surge that caused a self-resetting circuit interruptor to temporarily shut off power to a critical piece of equipment, or some other temporary problem that went away on its own.
However, it is human nature to look for and see patterns even when they don't exist. Thus, after years of being told that electronics can cause planes to misbehave, people immediately assume that somebody's MP3 player is at fault whenever something unexplainable happens on an aircraft. The flight crew tells people to shut down their electronics. After a while, things start working again, so the flight crew then assumes that those electronics caused the problem when the evidence supporting that conclusion is flimsy at best and nonexistent at worst. That doesn't prevent it from being reported as an incident, though.
If you really want useful data, the flight crew needs to tell those passengers to turn that equipment back on and see if the problem recurs. If it does, then it probably contributed to the problem. If it does not, it probably did not. The problem is that nobody wants to do this because they're too afraid that turning it back on might bring the plane down. And this is why incident reports are nearly useless as a means of determining safety.
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