PENSACOLA, Fla. -- New audio recordings of a missing pilot's take-off show no indication of any mechanical failure at the outset of his flight.
"Golden Eagle 4-8-delta-lima," Dr. Peter Hertzak radios into air traffic control.
"Golden Eagle 4-8-delta-lima," the controller responds. "I'll be right back with you."
The exchange took place around 6:45 Thursday morning, as Dr. Hertzak left Slidell, Louisiana.
"48 delta lima cleared for Sarasota," the controller says.
"Delta lima cleared direct for Sarasota," Dr. Hertzak replied.
A few hours later, Dr. Hertzak stopped responding. By 10am, the plane started an odd circular pattern, which it continued until it ran out of fuel and crashed.
Coast Guard Chief John Edwards said the plane landed right-side up on the ocean surface and floating, but monitoring planes did not see a life raft deploy or anything to indicate the pilot -- the lone person aboard -- was alive. The Cessna 421C later sunk into the Gulf about 120 miles west of Tampa in about 1,500 feet of water.
A Coast Guard cutter and rescue helicopter were en route to the crash site, but not expected to arrive before the plane was well submerged.
Federal Aviation Administration spokeswoman Kathleen Bergen said the plane was flying from Slidell, La., to Sarasota. She said controllers lost contact with the pilot at 9 a.m. The Coast Guard said it went down about 12:10 p.m.
Dr. Hertzak, an OB-GYN who worked in the Slidell community just northeast of New Orleans.
"I met him years ago when he was looking to start flying again and bought this plane," said Huete.
Huete described Hertzak as an excellent pilot. "He flew by the book and he didn't scrimp on maintenance," Huete said.
Huete said he went to the airport after hearing reports that identified the plane and was upset by the news.
Two F-15 fighter jets tried to make contact with the plane at 8:45 EDT and were flying with it and monitoring it, but weren't able to hail the pilot, said North American Aerospace Defense Command spokesman John Cornelio. The jets' pilots reported that the Cessna's windshield was iced over and that the plane was fluctuating between 25,000 and 35,000 feet.
A computer-generated image provided by FlightAware, a private aviation flight path service, shows the plane traveling in several circles over the Gulf for hours before going down.
The two F-15s from the New Orleans National Guard were already on a mission over the Gulf, Coast Guard Chief John Edwards said in a news release. The Jacksonville Air Traffic Control Center asked the military if jets could check on the plane that was orbiting near one of Eglin Air Force Base's warning areas over the Gulf, Edwards said. Eglin is located on Florida's Panhandle.
Associated Press writers Kevin McGill in Slidell, La., Colleen Slevin in Denver and Randall Chase in Dover, Del., contributed to this report
Copyright 2012 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
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