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I believe the wing spar is steel not aluminum. I was not aware that this school was already pulling wings at 10,000 hrs. That is a significant argument that they are aware of the beating their planes take. But it also makes it worse if this plane was missed ( despite their self imposed wing...

I have talked to mechanics about metal vs. composit. Many of them like the metal planes because they say you can usually tell visually when metal is fatiguing. It warns you that is is going to have a problem. You can see wrinkles, cracks, changes in color, etc. Composites on the other hand...

Just found Piper bullitan SB 968A that was issued in August 6, 1999. Sounds very similar to what we may see here. It gave Piper guidelines how to pull the wing and inspect that exact area, including guidelines based on usage and TT. Sent from my SM-G950U using Tapatalk

A better wing shot, but it is the older Hershey bar wing. Sent from my SM-G950U using Tapatalk

And that is ok ne of the big picture questions here. With a plane subject to 100 hrs inspections, should that have been seen. Here is a ok view of the underside of the Arrow wing. Between the access ports and the wheel well, I am not sure how visable that joint is. This shot shows several...

Yes those areas appear to be the bolt holes. Somebody higher up said the darkened areas on the outer portion of the cross beam are the old chronic fractures. The shiny area is the part that catastrofically failed. Sent from my SM-G950U using Tapatalk

Again I ment to say Arrow. My initial though is that the whole line may not initially be subject to investigation, because of the changes made to the wing structure and weight to hold the retractable gear. I know the differences are minor, but there may be just enough to hold back from this...

Sportys also has an electronic E6B that is exam legal.

Sorry ment Arrow. My bad thanks. Sent from my SM-G950U using Tapatalk

We are just going to have to wait and see what the actual report is on the failed part. I think the FAA will initially order large schools like this to inspect all their Arrows, and possibly have them pull a few wings. If there is no pattern and this plane is unique, I believe a visual...

Just got the email that duats is going away. I apologize if this has been asked already, but what website and what links will be the best for filing IFR going forward. Especially using programs like Foreflight?

Were there any design changes made between the old PA28 and the new PA28, if nothing significant then I suspect the AD may be all. I would not be surprised if they put in a time qualifier however, like all PA28's with more than say 5000 hours total time. My gut would say that the AD would...

But what is important here for the big picture is this a design flaw in the PA28? Was there specific prolong abnormal stresses to this plane, if so what and how? Was this just a case of a bad batch or metal? Or just plain bad luck? Sometimes, an individual mechanical item, or structural item...

Another interesting note. They stated that the right wing spar showed a similar degree of deterioration. To me this means that whatever abnormal loads were being applied they had been occurring more or less equally. Does this similar degradation influence the type of " abnormal abuse" that...

The other thing I noted in the article is the student was at 201 hrs, and going for his commercial rating (obviously the student is not at fault), but how fast do these types of flight schools push pilots through. I know the national average to get a PPL is abound 65 hours, but I would imagine...

The other idea that needs to be addressed is that of landing cycles, and the frequency of stressful maneuvers. Most private pilots do not regularly put their planes through slow flight, chandels, high bank turns, repeated landings, etc. A plane being used for training is by necessity, undergoes...

With this we will also require an expensive firmware upgrade to all of our GPS' etc? Well being an airplane, this is likely yes. Sent from my SM-G950U using Tapatalk

I am thinking of putting in a new engine monitor and basically have it down to these two (the 930 is much harder to fit on the panel). I know the 900 is roughly 2 K more for the unit, and is designed as a primary flight device, which is attractive to me. But I am not sure I " need" the 900, and...

My local field does ferry tank installs, but the runway is only 4000 feet so they never take off from there using the tanks. They fly to one of the local airports that have at least 7000 feet use use those for fueling. Those airport also have fewer obstructions and are situated at an elevation...

The part about the airplane world is due to regulations and costs, GA planes have never really gotten the opportunity to be "sexy". What I mean by that is cars, motorcycles, even boats, are constantly chaning their looks not because technology dictates it, but because the look can afford to...