Brief Description: Counter sink bottom angle on firewall.
Don’t know why I needed 3 pictures counter sinking the bottom angle of the firewall. Easy job though. I counter suck these holes while the firewall was still attached to the fuselage. You can see I used riveting tape to tape over the crack between the aluminum angle and stainless firewall to keep aluminum chips out. You may say “what a waste of this type of tape” but I say “So what”. It’s thin so it didn’t interfere with the counter sink cage.