Monday, April 28, 2008

This is a better view of the damage. The aircraft ended up resting on its landing gear - they just weren't in the proper position. It is designed to collapse like the one on the left. The right one broke away the housing which is going to cause the most problems to repair.

3 comments:

DAD said...

This question related to another one. Or my confusion about what caused the damage. Did the landing gear malfunction?

DAD said...

No need to respond to this; answered my own question by reading your last entry more carefully. Well, maybe I do have another question. The landing gear is supposed to fold up on impact? Maybe I do need some more clarification. Thanks!

David said...

That was a little confusing. In normal operation the landing gear is not supposed to fold up. However, as with many other areas of the aircraft the engineers designed in weak (or I should say weaker) points so if something does fail it will fail at the designed point which limits the resulting damage. Another example we have had problems with - the shafts that connect our hydraulic pumps to the transmissions (the transmission are used to drive the pumps) are designed to shear if the pump starts to bind up. Then all you have to replace is the pump. The problem we are having is that the shafts aren't shearing and as a result the pump crews itself to pieces and then all those little flakes of brass are spread throughout the hydraulic system and we have to replace every component in the system and flush all the lines. So the malfunction of a $15,000 part ends up costing us almost $400,000 and days of labor. The same thing happened with the landing gear - the right side didn't fail where it was supposed to and now the repairs are much more extensive. One thing I have learned - it doesn't pay to own a Chinook :)