Continued trying to find fuel system leak (not holding 30 psi air pressure). Used "Mega Bubble Leak Detector" (blue fluid). Supposed to detect micro leaks. But I tested first on a joint gradually loosened - didn't seem much better than simple soap bubbles (maybe identifies leak at 1/2 rate, but my rate is approx 1/10). Decided to try anyway...first re-checking firewall forward, then behind firewall. When I added the liquid to the the pipe thread joint between filter and boost pump - I actually heard a light hiss with my ear about 6" away. Never produced bubbles. Neither did soap bubbles over last two days numerous times. This was same joint I already re-did couple days ago. But I tightened further another 1/3 turn...and Tah Dah ! Holding 30 psi for 2 hours ! Probably should have started with a mechanics stethoscope. I now hate pipe thread joints ! Next, I started installing interior panel per Sect 43. Installed Crotch belts for 5 point harness.
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| Installed inspection panels in baggage area, then added Carpet from Flightline Interiors. Perfect fit! |
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| Installed wall panels and armrests from Flightline Interiors. Added Crotch Straps. Panels on floor haven't been screwed down yet. |