Matt Gunsch wrote:
The EAA and myself wanted a 1 time dye penatrant inspection, there is NO data to justify a reoccuring AD. The FAA based the need for a reoccuring on a SAAF service bulletin, that they themselves admitted that they had NO data from backing up the bulletin. They have no idea how many cracked attach angles were found if any. There have been 2 failures in 65+ yrs, That is not a trend. Someone else brought up that there were alot of wing failures in WWII, That is new to me and I have been working on 6s for over 20yrs. The only damage I have found on attach angles were exfoliation corrosion, and I have inspected the angles very closely on all the 6s I have worked on.
One thing to consider also, in the eyes of the FAA, There are NO approved parts for the T-6, since all the parts were produced for the military they are UNAPPROVED parts since they were not produced under a production certificate, this is from the guy that wrote the rules, not my reading of them. The only parts they consider approved are those that came off another plane and has tracability. A new attach angle in a sealed NAA box is not good enough.
For those that do not work on airplanes of any type and think that the FAA is always right, I have lots of examples of them being wrong, and in this case, it is going after a gnat with a cannon
Matt Gunsch,
A&P,IA,Private Pilot
Crew Chief of TBM-3E, DC-3C, B-25J, PBY-5a, T-28C, SNJ-4, PT-17
Riding member of the
2003 World Champion Motorcycle Drill Team
Arizona Precision Motorcycle Drill Team
Thanks Matt.
I hesitate to even say this, but perhaps the "for-hire mock-air-combat"
type operations should be held to a higher standard (?) than the rest
of the privately owned fleet (I'm not just talking about T-6s, but
all the others... T-34 , SF-260, Extras, whatever). I realize the
logistics of trying to enforce something like this wouldn't be easy
(i.e., which airplanes used to be used for hire and are now in
private hands, etc.).
I'm just thinking out loud here, and asking for input/thoughts, not
trying to yell out my point of view. I can be as civil as the next
guy, while agreeing to disagree on this point or that.
The last thing I'd want to do is hurt the "fighter pilot for a day"
industry (I'm a customer for crying out loud! I flew with WA
in Kissimmee a few years ago). I just wonder if there's something
we can learn fom history... The military limited the G loads on these
aircraft towards the end of their service life. As someone pointed
out, not all of the fleet (more like a small percentage of same) has
been completely gone through (i.e., restored from the ground up).
Bela P. Havasreti