Thought I would post this as a warning to other KTM 990 riders or get alternative opinions on what happened. On a recent 2000km trip on my 2012 KTM 990 Adv. I had the screw cap that provides access to the crank on the left hand flywheel cover fall out! Fortunately this must have happen just as I was entering a town ( slow speed) and only noticed it when I stopped for fuel. My left boot and the entire swing arm and left side of the tire was literally dripping with oil! If this had happened earlier in one of the high speed passes I would have gone down for sure. Took 800ml of oil to refill to correct level after temporary repair was made and managed to complete a great trip! I can only think that the mechanic must have over tightened the plastic screw cap and stripped the thread? KTM had repaired the motor under warrantee a few weeks earlier after the oil pump drive gear sheared in half. The replacement OEM gear that they supplied was a machined gear not cast metal like the original one that broke? Still a great bike but I have replaced the plastic screw cap with a stainless steel plug and Locktite!