reversers

In that event, Jamaican and U.S. investigators have concluded that the plane's brakes, reversers and other systems basically operated as designed, but standing water on portions of the runway likely made it difficult for the pilots to stop in time.

Maintenance, Pilot Mistakes Likely Caused Jet to Roll Off Runway Andy Pasztor 2011

He led people from being ‘crackers’ to ‘reversers’, both in the sense of software reverse engineering, and as an ideology.

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In addition, the safety board said separate devices at the rear of the engines also designed to help the plane come to stop — called thrust reversers — took too long to deploy.

Maintenance, Pilot Mistakes Likely Caused Jet to Roll Off Runway Andy Pasztor 2011

One angle the safety board is pursuing is whether the earlier maintenance error — potentially binding or restricting the operation of various controls in the cockpit — could have caused the delayed response from the reversers.

Maintenance, Pilot Mistakes Likely Caused Jet to Roll Off Runway Andy Pasztor 2011

The plane's cockpit-voice recorder, however, indicates that the pilots commanded the reversers to deploy as soon as the plane touched down, according to people familiar with the details.

Maintenance, Pilot Mistakes Likely Caused Jet to Roll Off Runway Andy Pasztor 2011

After the reversers started working and the crew pushed hard on the brakes but realized the plane wasn't slowing fast enough, the first officer said: "We're screwed."

Pilots, Mechanical Problems Faulted in American Air Mishap Andy Pasztor 2011

Data released by the National Transportation Safety Board on Friday indicated that the plane's thrust reversers, devices at the back of the engines used to slow a plane after landing, failed to engage for almost 18 seconds after touchdown.

Pilots, Mechanical Problems Faulted in American Air Mishap Andy Pasztor 2011

The crew attempted to deploy the reversers at least three times before they kicked in, but by then the 90-ton jet had used up about two-thirds of the strip.

Pilots, Mechanical Problems Faulted in American Air Mishap Andy Pasztor 2011

The captain ordered him to steer the jet and tried to manipulate the handles to deploy the thrust reversers.

Pilots, Mechanical Problems Faulted in American Air Mishap Andy Pasztor 2011

"Approximately 18 seconds elapsed" from the time the plane's landing gears touched the runway "until reversers were fully deployed," according to the update.

Maintenance, Pilot Mistakes Likely Caused Jet to Roll Off Runway Andy Pasztor 2011