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Corrosion cracking caused Korean Air Boeing 777 main gear axle failure on landing
Japan Investigators of Korean Air Boeing 777-300 that suffered serious damage to its rear wheel axle of the main landing gear conclude the corrosion attributed to failure. (newsinflight.com) Más...Sort type: [Top] [Newest]
A far more detail report (short and quick read, with some goooood pictures... in case there are folks here old enough to remember - I read the magazine for the articles - :-)) and take somehow grease missed a spot. I.e. "It is highly probable that the corrosion generated on the pivot bore was contributed by water penetration caused by the torn fillet seal due to rotation of the bushings and corrosion inhibitor that was not applied." -- This makes me wonder about other 777 that had gear worked on prior to the requirement change alluded to in the article. A mandatory check and lube job, maybe?
Also, recall auto brake fluid is pretty corrosive, and wonder if it is the same here?
I agree with you there. It is easy to look back afterwards and say oh yeah _____. A couple of [really] hard landings and bazinga. That bad boy snapped cleanly. I wonder if it had anything to do with a manufacturing defect.
Comments that are argumentative i.e. Korea stats and killing has nothing to do with the article.
I wish there were larger pictures of the area in question. From what I can see on the inside with the pics provided in the article, there is severe pitting in bore of that part. Was greas or oil getting to the part?
Here is a close-up of said axle:
https://66.media.tumblr.com/01980b0951a78c0451825c2b700cb291/tumblr_ngfee3kz6A1sn9xo8o8_1280.jpg
Here is a close-up of said axle:
https://66.media.tumblr.com/01980b0951a78c0451825c2b700cb291/tumblr_ngfee3kz6A1sn9xo8o8_1280.jpg
That should read close-up of axle when assembled.
A few more details can be found at AVHerald
http://avherald.com/h?article=4ba7efc8&opt=0
http://avherald.com/h?article=4ba7efc8&opt=0