Originally Posted by Kjkbcaptain
I have an 8 with about 100 hours on it and it has developed cracks in the skin just aft of the lower cowl air exit, directly above where the exhaust pipes exit. Anyone else see this problem of have suggestions. Thanks.
Cracks are at the aft-most rivet in the floor ribs?
You could try injecting a metal-safe silicone in between the belly skin and cockpit floor. I drilled a few 3/16 holes in the floor panel, squared the end of the nozzle on the sealant tube, pressed it against the floor and pumped in two or three shots of Firebarrier 2000. Pushing 700 hours now, no cracks.