Two plane incidents rocked the state of Hawaii on Monday morning, one of which involved a fiery plane crash that left five people dead. A group of two instructors, two tandem jumpers and a pilot took off for a skydiving tour from Port Allen Airport in Kauai at 9:30 a.m. The single-engine Cessna they were in crashed just outside the airport in Hanapepe, a Kauai Fire Department official said. Four of the individuals were pronounced dead on the scene and one adult male died en route to nearby Wilcox Hospital. In a separate incident off the island of Oahu, a single-engine airplane experienced engine trouble while inbound to Honolulu International Airport when it landed in the water just off of Makaha Beach, said Ian Gregor of the Federal Aviation Administration.