AD note for G-103, Grob two seat gliders

On Sunday, November 1, 2015 at 4:15:34 PM UTC-7, Bill T wrote:
Bill was your un commanded deployment from a cracked part?
BillT

BT,
Keep in mind the "Un Commanded" deployment was followed by an "Un Commanded" opening of the canopy which was followed by an "Un Commanded" release failure. No one was ever able to duplicate any of this so there was an "Un Commanded" invitation to leave the club.

On Sunday, November 1, 2015 at 9:17:01 PM UTC-7, wrote:


Hard to say until someone who really knows how the thing is supposed to work looks at it. A developing crack in a bell-crank might allow the mechanism to bend so it couldn't completely lock closed.

Whats hard to say is why your version of this event keeps changing. The ship in question WAS inspected by 2 AIs (One with extensive Grob experience) and the shop we had to take it to after you tore it up. Further, This ship has the inspection ports installed from the previous Brake AD. You know all of this of course, you are just dishonest.

The kits for installing the inspection holes will include the correct epoxy resin and filler materials. The plexiglas cover/window is also included. As is noted in the instructions placement of the holes is critical as they are not in the same position on the LH wing as on the RH because of spar placement. Careful reading of the SB G07 is important.

I am collecting orders now for the kits and will have some on hand before the effective date of the AD note.

Robert Mudd
Composite Aircraft Repair
ph 505 269-8234

We did ours this summer as in Canada EASA AD's on EASA made gliders come into effect upon issue. Fortunately the closing forces were within spec and there was no damage to the parts. It wasn't that bad except for the derigging, rigging, derigging, rigging cycle needed to get it to the maintenance shop and back and then into the air again.

One thing I was curious about is that our Twin II already has inspection ports in the wings near the airbrake system parts in question but unlike the inspection ports in our Twin Astir RG they don't seem to be large enough to allow removal of the brake parts through them.