From Local News Paper

06/10/2005Investigators think pilot may have been practice engine failure scenarios By:Sue Thackeray , Courier staff
A Conroe pilot may have been practicing engine-failure scenarios in the moments before his twin-engine airplane plummeted into a house east of Conroe Thursday, according to a National Transportation Safety Board investigator.
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Investigators from the NTSB, Federal Aviation Administration, Beechcraft (maker of the aircraft) and the engine manufacturer arrived at the scene of the crash about 8 a.m. Friday and spent the day sifting through the charred remains of the aircraft and the house, located at 2545 Jeffcote Road east of Conroe, that it crashed into Thursday afternoon.
The plane crash killed the pilot, Masayuki Shiokawa, 32, a former Japanese Air Force pilot and flight instructor with MVP Aero Academy in Conroe. No one else was on the plane or in the house at the time of the crash.
Shiokawa had between 800 and 1,000 hours behind the controls of single-engine aircraft and between 50 and 100 hours of experience in multiengine planes. He was a certified instructor on both single- and multiengine aircraft, according to FAA records.
Investigators are still several months from pinpointing the exact cause of the crash, said Frank McGill, the NTSB investigator in charge at the scene.
"We have several witness statements, and we hope some of those will give us clues to what happened," he said.
A fellow pilot, who was flying behind the Beech Model 76 Duchess Thursday afternoon, told investigators Shiokawa appeared to be practicing landing without one engine working properly.
"You can throttle back one of the engines to simulate engine failure," McGill said. "Another pilot said he witnessed the plane came within about 20 feet of the runway in the middle of the runway, before he elected to go around."
Moments later, that same witness saw the right wing of the plane at a very steep angle - possibly as steep as 70 degrees, McGill said.
"The plane was banking to the left," he said.
The plane then lost altitude, broke through several tree branches and rolled over before striking the house, according to the investigator.
McGill said Shiokawa told the other pilots in the area over the radio that he was going to attempt such an operation.
However, another pilot in the air at the same time told investigators that the left prop of the plane was "feathered," a permanent condition that occurs when an engine has lost all power.
McGill said if that statement turns out to be correct, it may show that the plane actually suffered engine failure.
A key piece of evidence in the search for the cause of the crash may be a videotape, shot by another pilot in the area at the time.
McGill said Friday afternoon that he had not viewed the tape, which is believed to contain footage of at least a portion of the crash, but that it is in the hands of the NTSB.
Much of the plane was destroyed or severely burned in the crash and the aftermath. But McGill said he believes the wreckage will produce clues about why the plane crashed into the house.
"I think we'll get a fair amount of knowledge out of those engines," he said.
Maintenance records show both of the plane's engines and props had been completely overhauled recently and had less than 100 hours of flight time on them, McGill said.
Investigators plan to start removing the remains of the plane from the site today. The wreckage will be taken to a maintenance base in Lancaster, where investigators will comb through it piece by piece.
McGill said he probably would file his preliminary report on the crash within a week, but that the factual report would take two to three months to produce. After that, the NTSB in Washington will release a final cause of the crash.