Lessons from Flight AF 447

Spiegel Online has the best analysis I have seen so far on the Air France crash. They highlight the Call for Airborne ‘Black Box’ Data Stream

If search teams fail to recover the flight recorder, which consists of two metal devices that record flight data and cockpit conversations, this question may never be answered. “It would be a real shame for aviation,” says Robert Francis, the former vice chairman of the National Transportation Safety Board, the agency that investigates aviation accidents in the United States. “If we want to avoid dramas like this in the future, we have to know what went wrong,” says the safety expert. For this reason, Francis wants to see all important flight data transmitted via satellite in the future, using ACARS technology. “This crash demonstrates how valuable this technology could be,” he says.

The technology exists today. A simple change to the black box program is all that would be necessary.

Krishna Kavi, an engineer and professor at the University of North Texas in Denton, presented the US Federal Aviation Administration (FAA) with a similar system 10 years ago. “The cost is low,” he says. For the 256 parameters recorded by a black box, Kavi came up with a volume of data requiring transmission of four to eight kilobits per second. “This is a fraction of what mobile wireless devices transmit today,” says Kavi.

There will be debates about the bandwidth necessary, the level of information to send, etc. just like with log management. This is a fascinating way to look at the problems that most organizations face everyday. Are you logging the right level of information to detect a failure in time and to avoid a repeat? It is not clear that AF 447 would have been avoidable with better monitoring systems, but it would certainly help with the speed and cost of post-incident analysis. Note that it is the pilots who seem to object most to increasing the signal rate and using surveillance. They claim privacy rights, to which the response obviously should be encryption.

Chimpanzee Spatial Memory

The BBC tells how Chimps mentally map fruit trees

Chimpanzees remember the exact location of all their favourite fruit trees.

Their spatial memory is so precise that they can find a single tree among more than 12,000 others within a patch of forest, primatologists have found.

More than that, the chimps also recall how productive each tree is, and decide to travel further to eat from those they know will yield the most fruit.

Amazing. I’ll have to incorporate this into my next presentation on network monitoring. Although it seems thorough, the study left some things undone.

Intriguingly, female chimpanzees travelled shorter distances to eat than males. The researchers don’t know why, but speculate that it is either because females better remember the locations of trees, or because males simply compete with one another by ranging more widely through their territory.

Technology and data analysis can only get you so far, apparently, as the researchers leave this one open to interpretation. Who can crack the mystery of gender-based differences in chimpanzee navigation? Perhaps the females stop to ask for directions?

Spies for Cuba Arrested in US

A man who worked in the State Department and his wife have been accused of spying for Cuba for 30 years:

The documents describe the couple’s spying methods changing with the times, beginning with old-fashioned tools of Cold War spying: Morse code messages over a short-wave radio and notes taken on water-soluble paper. By the time they retired from the work in 2007, they were reportedly sending encrypted e-mails from Internet cafes.

The criminal complaint says changing technology also persuaded Gwendolyn Myers to abandon what she considered an easy way of passing information, by changing shopping carts in a grocery store. The document quoted her as saying she would no longer use that tactic. “Now they have cameras, but they didn’t then.”

Store cameras as a deterrent for international spying? That’s a new one. Wonder if I could have added it to proposals and won even more funding?

San Fran Power Outage After Explosion

An explosion and fire in San Francisco has led authorities to advise residents to stay indoors

An underground explosion in San Francisco’s Tenderloin neighborhood has prompted fire officials to issue a shelter-in-place warning this afternoon because of toxic smoke caused by an underground explosion and fire.

About 4,500 Pacific Gas and Electric customers lost power shortly after 11:30 a.m., when an underground explosion occurred in the area of Polk and O’Farrell streets.

Firefighters used CO2 to suppress the flames, but PG&E requested they stop using it in order to allow the equipment to fail completely, fire Lt. Mindy Talmadge said.

But when firefighters stopped using the CO2, a black cloud of smoke seven stories high rose from the manhole. At one point around 1:15 p.m., flames 10 feet high shot from the manhole.

The downtown area has been seriously impacted as buildings with smoke detectors automatically have shutdown systems including elevators.