On 2/12/2015 10:25 AM, Mike Borgelt wrote:
How much of the DG skin over the spar cap was delaminated? Sounds like
it doesn't do anything to the stiffness of the wing anyway.
I don't have exact details other than some extensive conversations with
the guys that found it (it was on a Form 2 inspector's course, of all
things...). It seems fairly significant amount of delamination, but in a
series of patches, rather than one big area. I believe the glider is
down with Scott Lennon currently and he or Tom could give more details.
If there is a 30% change between annuals and you can't find any damage
I'd suspect the test wasn't done properly at the previous annual.
Interesting to know how you propose to return the aircraft to service.
Again, story from another inspector at Camden that found the problem in
his own glider that talked about it over beers at the end of the day.
I'll let him chime in with the details if he wishes. I know more of the
story but prefer not to pass on any more as I may not have all the
information correct.
Alan, heavens you'll be wanting all rules and regulations to have a
sound, quantifiable, rational basis next.:-)
Sounds reasonable :)
My goal in posting hand-wavy examples is to present some amount of
anecdotal evidence as to what may be useful. Hoping a few other
inspectors can chime in with their own experience or what they have
heard through the grapevine.
I'm intrigued by the original email that the procedure itself has
disappeared from our formal documentation. Seems it was in MOSP 5, but
disappeared in MOSP 6 (just checked now). Naturally nothing in BSE
unless it has been added into a new chapter somewhere that I haven't
seen. Seems like the natural place to keep something like this. I'll see
what I can find out about it.
--
Justin
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