In a previous article, (blanche cohen) said:
Any suggestions? I haven't heard from the shop this morning (they're
not open yet). I'm thinking something got jarred loose when the
new DG was installed.

My guess would be that while they were working on the DG, something got
into the vacuum system and ended up in the AI gyro.


--
Paul Tomblin http://blog.xcski.com/
"The means of defense against foreign danger historically have become the
instruments of tyranny at home." - James Madison