I was on travel this week for work, so there was nothing much doing on the airplane the last few days. Lots of catch-up stuff to do around the house today, so I took care of some small, random tasks before clecoing on the side skins for riveting.
The static source line will have to pass through the seat back bulkhead, so while I still had good access, I drilled a 1/4″ hole through the channels and heavy angle at one corner of the bulkhead. There’s another hole in the bulkhead rear (closer to you in the picture) that will accomodate a snap bushing.