3: if you can't update the database (such as you're in the middle of
a trip during the window) you can't do IMC anymore. BTDT - at
Sun'n'Fun, no less.


Is this a specific limitation spelled out in Garmin's POH supplement?
Not that I have done this due to burning my own cards and maintaining a
current subscription, but I was under the impression that one could
even fly an approach with an expired database, as long as a) the GPS
supplement doesn't restrict this and b) the pilot verifies the GPS
approach with a published approach plate.

I don't know if it's spelled out in the POH supplement, and it's not
handy right now. If you do the approach and land uneventfully, you will
probably not have a problem. If you do the approach and have an
incident which brings you to the FAA's attention, you could probably
count on a "careless or reckless" charge. If there was a significant
change to the approach, it might be difficult (depending on the change)
to fly the mod by hand, since it's not in the box.

Yes, they give you ten days. In my case, the new database was burned to
a spare card before my flight, but I didn't have the spare card and
didn't know until the flight that the database was about to expire. At
Sun'n'Fun, I went to the Jepp booth to update my card, and there were
"no more updates available", meaning that my quota of burns had already
been burned (we have three aircraft and three subs). So, Jeppesen would
not update my card, and it took a bit of "discussion" and several long
distance phone calls before I could convince them to add one to my quota
and let me burn the update.

I consider this to be a safety-of-flight issue, and I wonder how Jepp
would come out after an accident.... no, actually I do know how they
would come out. "After all, I didn't have to make the flight in the
first place."

Jose
r.a.homebuilt retained, though I don't follow that group
--
Get high on gasoline: fly an airplane.
for Email, make the obvious change in the address.