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Post by Tim Glubaskas on Jan 10, 2016 7:40:20 GMT -9
We recently acquired a 1981 Aircraft and are taking it through conformity. The aircraft has almost 6500 hrs on it - a baby for our fleet as the one it is replacing has 39,200 hrs When verifying AD03-24-07 Rudder Torque Tube we noticed a small amount of corrosion on the tube. Having done 15 or so torque tubes over the past 10 or so years we have learned this slight corrosion can have a deeper meaning. Enclosed are some pics of the removed torque tube....note that the worst corrosion is in an area samwiched by a part of the rudder and, therefore, cannot be visually checked. The previous operator was religiously doing the AD required but there was quite a bit lurking beneath the surface - if you see just a small bit of corrosion.....further investigation is warranted
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Post by roger on Jan 11, 2016 15:31:38 GMT -9
We recently acquired a 1981 Aircraft and are taking it through conformity. The aircraft has almost 6500 hrs on it - a baby for our fleet as the one it is replacing has 39,200 hrs When verifying AD03-24-07 Rudder Torque Tube we noticed a small amount of corrosion on the tube. Having done 15 or so torque tubes over the past 10 or so years we have learned this slight corrosion can have a deeper meaning. Enclosed are some pics of the removed torque tube....note that the worst corrosion is in an area samwiched by a part of the rudder and, therefore, cannot be visually checked. The previous operator was religiously doing the AD required but there was quite a bit lurking beneath the surface - if you see just a small bit of corrosion.....further investigation is warranted We did the torque tube on ours a few years back, the outside looked about like that, but when we drilled out the tooling hole in the bottom for inspection lots of rust chunks came out. Hidden rust is a big deal on these things.
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