A weekend jaunt turned to tragedy when a Hollywood man, his wife, child, a brother and a friend died in an air crash on Grand Bahama Island, 20 miles east of Freeport. All those aboard the single-engine Beachcraft were killed when it crashed into a heavily wooded area near a missile base, said a spokesman for Bahamas Air Sea Rescue. Authorities identified them as Wayne B. Poutinen, 29, his wife Carole, 30, and their son Chris, 6, of 4618 Monroe St., along with Wayne's brother, Roy Poutinen, 26, of Miami. Relatives here said a friend also was on board, Chris Woodland, identified as a U.S. Navy pilot stationed at San Diego, Calif. He had flown in just to go on the trip. The Poutinen brothers, with their father, Paul Poutinen, also of Hollywood, shared ownership of Apex Products, a manufacturer of gifts and stationery in Dania. The Wayne Poutinens' two other children, nine-month-old Ashley and Paige, 8, are being cared for by neighbors, a family friend said. "They were just going for the weekend. They did this quite often," said the friend. The plane was borrowed from another friend, Robert Speilman of Hollywood. "I heard the report that it exploded in mid air. I also heard it didn't go up until after it hit ground," said Speilman, adding, "The chances of a small plane like that exploding in mid air are almost inconceivable unless it was something in the luggage." Speilman said he had flown the plane only the day before to Bimini. "At this point, no one knows what really did happen. It's just a matter of conjecture until the proper inspection can be made," he said. Local authorities say the small plane took off from Opa-Locka Airport bound for Treasure Cay on Little Abaco in the Bahamas. They headed to visit friends. At 5:05 p.m. yesterday, said Bahamian authorities, the plane passed over the missile base on Grand Bahama Island and those on the ground heard the engine cut out. Bahamian authorities said they had no knowledge of any radio message from the plane for help. All on board were burned almost beyond identification, said Noel Hensco of Bahamas Air Seas Rescue. The crash site was so remote, bulldozers had to cut a path before anyone could get to the plane. A joint investigation of the crash will begin tomorrow by the Federal Aviation Administration, the National Transportation Safety Board and the Bahamian Air Ministry.