I'm a new user - so thanks for your patience. 2001 Gravely 250Z, bought it in Aug. 08 with 44.2 hrs., it had approx. 143.7 hrs. on it at the time of the fire. The mower has been meticulously maintained. I had just filled both tanks with fuel on a level concrete barn floor, checked the oil & hyd. fluid, given it a thorough once over, backed it out of the barn and blown off all the grass clippings. I'd been mowing approximately 35-40 minutes when the fuel fitting came out of the left tank bushing on essentially dry, level ground. When the fitting came out of the bushing, the bushing came out of the tank. I was mowing upwind and could not smell the fuel. Mowed down a small incline towards the pond on a path that I'd cut last winter, around the tree a couple of times, and was moving back up the slope when I smelled the gas. Checked the fuel caps to make sure they were on good. Immediately shut down the mower, got off & went around the left side. The left tank was gushing fuel - the fuel line was still clamped to the fitting which was laying on the frame of the mower. Reached down to grab it when it blew up. The pictues below show the initial leak site, the trail down the embankment, and a couple pictues of the mower itself. 2nd & 3rd degree burns on my right arm and hand. 2nd & 3rd degree burns all around my right leg. 1st & 2nd degree burns on my left leg. 1st degree burns on my face. I have never experienced anything as painful as these burns, but am grateful that it wasn't worse. Over the last few days I've been searching for similar occurances on the web & trying to learn as much as possible about the fuel tank set up on these machines. Came across the thread about the Scag fire. The bushings on my fuel tanks were set down very low on the tank. They were also directly across from the engine. Once the leak started there was no way to stop it - the tank was going to drain. To their credit, Gravely has since significantly changed the design of the tank, the bushing, and the fittings. The bushings are now made out of a different material than mine were. The bushings are now located far up on the tank, and the fittings have big 90 degree elbows versus my small straight ones. (I managed to recover both fittings, the right hand fitting still had the bushing attached, but the fitting appeared to also be working its way out of the bushing.) Went to a Gravely/Toro dealer last weekend here in Tulsa. The Toro's still mount their bushings low on their tanks. Asked the dealer to show me the replacement fittings & bushings for the Gravely. He didn't have any of the fittings, but brought out a bag of black bushings. I told him the "replacement bushings" weren't made out of the same material as what was on the new Gravely's. He admitted that they were the generic (read aftermarket) bushings that would fit any mower they stocked. My initial conversations with Gravely have been pleasant. I spoke with the factory one morning and they pulled their territorial sales manager out of deep Texas and had him on my door step at 9:00 a.m. the next day. They have indicated that they feel this is "an act of God", but they have also said they like to take care of their customers. We'll see how this goes as time goes on. The purpose of this post is to find out if others have had similar experiences and, more importantly, to hopefully prevent this from happening to someone else. I've not been necessarily kind to my body over the years - football, rugby, USMC, etc., etc., but this is the worst pain I've ever experienced in my life and it's going to be a long, long recovery. Again, there was absolutely no visible evidence that anything was wrong with the fuel system. No leaks, no rotting/cracked lines, bushings in place, etc. However, I have come to very strongly believe that this is a terrible design. With the long-term effects of ethanol still unknown, there could be lots of little times bombs out there just waiting to explode. And yes, within a minute and a half I'd hit the fire with a big fire extinguisher. The flames were too intense & I couldn't get close enough to make a difference. Thank you for your patience - look forward to hearing from you much more experienced veterans out there.