|
The pilot sent a manual signal at 11 p.m. local time Sunday saying he was flying through an area of black, electrically charged cumulonimbus clouds that come with violent winds and lightning. Ten minutes later, a cascade of problems began: Automatic messages indicate the autopilot had disengaged, a key computer system switched to alternative power, and controls needed to keep the plane stable had been damaged. An alarm sounded indicating the deterioration of flight systems. Three minutes after that, more automatic messages reported the failure of systems to monitor air speed, altitude and direction. Control of the main flight computer and wing spoilers failed as well. The last automatic message, at 11:14 p.m., signaled loss of cabin pressure and complete electrical failure
-- catastrophic events in a plane that was likely already plunging toward the ocean.
Patrick Smith, a U.S. airline pilot and aviation analyst, said the sequence of messages strongly indicated a loss of electrical power, possibly as the result of an extremely strong lightning bolt. "What jumps out at me is the reported failure of both the primary and standby instruments," Smith said. "From that point the plane basically becomes unflyable." "If they lost control and started spiraling down into a storm cell, the plane would begin disintegrating, the engines and wings would start coming off, the cabin would begin falling apart," he said. The pilot of a Spanish airliner flying near where the Airbus is believed to have gone down reported seeing a bright flash of white light that quickly plunged to the ocean, said Angel del Rio, spokesman for the Spanish airline Air Comet. "Suddenly, off in the distance, we observed a strong and bright flash of white light that took a downward and vertical trajectory and vanished in six seconds," the pilot wrote in a report for the airline and Spanish civil aviation authorities, del Rio told the AP. The Spanish plane was flying from Lima, Peru to Madrid. The pilot said he heard no emergency calls from the plane. Air France spokesman Nicolas Petteau referred questions about the messages to the French accident investigation agency, BEA, whose spokesman Martine Del Bono said the agency declined to comment. Jobim, the Brazilan defense minister, also declined to comment. The accident investigation is being done by France, while Brazil is leading the recovery effort.
[Associated
Press;
Copyright 2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
News | Sports | Business | Rural Review | Teaching & Learning | Home and Family | Tourism | Obituaries
Community |
Perspectives
|
Law & Courts |
Leisure Time
|
Spiritual Life |
Health & Fitness |
Teen Scene
Calendar
|
Letters to the Editor