April 27, 2010 at 12:12 am
A new round of inspections has been ordered for some Boeing 737s that can develop a dangerous vibration in the tail.
The inspections cover the mechanism that attaches a movable flap to the plane’s elevator, which is the surface in the plane’s tail that points the nose up or down. If that flap comes loose it can cause a severe vibration, the Federal Aviation Administration said.
Last month the FAA ordered inspections of that part. But since then, the problem developed on a plane that had gotten the earlier inspection, causing “severe elevator vibration,” the FAA order said.
It ordered more detailed inspections within six to 12 days. The order covers about 360 planes.
The FAA did not identify the airline that had the incident that prompted the new inspection order.
Boeing Co. spokeswoman Sandy Angers said the problem was caused when an outside manufacturer used incorrect tooling on about 200 planes. The new inspection order covers those planes, plus another 160 – a precaution because they are certified for long overwater flights, she said.
Source: News.com.au
By: ThreeSpool - 27th April 2010 at 12:57
Is this just the 737NG’s?
By: Cking - 27th April 2010 at 10:28
The 737 has always suffered from elevatotor vibration caused by the tabs.What is curious about this is that the FAA have issued an alert about it. It was the norm that at the first report of “Buzzing” from the elevators we used to go up and check the play in all the tab mechanism, bearings, castings actuator rods the lot. Inevitably it was one or the other. I THINK it’s the first step in the Fault isolation manual for it too.
Rgds Cking