Wednesday, July 10, 2013

NTSB Investigators Raise Questions About Pilots

At WSJ, "NTSB Chief Says Cockpit Crew 'Required to Maintain a Safe Aircraft'":



Even before investigators have finished questioning the Asiana Airlines cockpit crew whose jet crashed in San Francisco, the National Transportation Safety Board ratcheted up signals that pilot error was the most likely culprit, prompting U.S. pilot-union leaders to issue an unusual public criticism of the board.

After providing new details Tuesday about the final minute of the flight—during which the plane was too low and not centered on the runway—NTSB Chairman Deborah Hersman indicated that the jet's senior captain told investigators he believed automated safety systems would maintain the plane's speed and make the approach safe.

"He assumed the auto-throttles were maintaining speed," she said at a briefing.

"Let me be clear," Ms. Hersman added, "the crew is required to maintain a safe aircraft." In an apparent answer to critics who contend the safety board is rushing to judgment, she said "one of the very critical things that needs to be monitored on approach to landing is speed."

Ms. Hersman characterized her remarks as simple statements of fact, not conclusions. "We will not determine probable cause" at this early stage of the investigation, she said.

Still, her comments raised questions about the actions and performance of the three pilots who were in the cockpit of the Boeing BA +0.47% 777 as it crashed Saturday while attempting to land at San Francisco International Airport, hitting a sea wall and slamming onto the runway before bursting into flames. The crash killed two people and injured dozens.

The Air Line Pilots Association said it was "stunned by the amount of operational data" the board has released. Without the proper context and detailed analysis, according to the union, "prematurely releasing" such information "encourages wild speculation."

ALPA, among other things, called on the NTSB to determine if the pilots had adequate training to use onboard navigation aids for a visual approach, on a day when the primary ground-based landing aids for the strip had been turned off due to runway improvements. The union also urged the board to look at whether there were differences between what the pilots saw on their instruments, versus information subsequently downloaded from the plane's flight-data recorder.

Asked about the criticism from pilot groups, Ms. Hersman said the board's release of information has been "consistent" with its practices in past probes.
I doubt the union's going to be pleased no matter what the final investigation reports. Human error here is overwhelming. The situation is just asking for more regulation, and the public's not going to object.


0 comments: