HISTORY OF FLIGHTOn September 4, 2011, at 1125 Pacific daylight time, a Cessna P210N, N7WJ, collided with trees near Tehachapi, California. The pilot/owner was operating the airplane under the provisions of 14 Code of Federal Regulations (CFR) Part 91. The pilot and one passenger sustained fatal injuries; the airplane was destroyed from impact forces and a post-crash fire. The local personal flight departed Cable Airport, Upland, California, at 1023. Visual meteorological conditions prevailed, and no flight plan had been filed.
The pilot called a friend who had a home near Tehachapi, and indicated that he would fly over the home later that morning on a pleasure flight.
A witness at the Mountain Valley Airport in Tehachapi possessed commercial pilot certificates for airplane single-engine and multiengine land, as well as an instrument rating. He was working on a glider rating at Mountain Valley and was familiar with the surrounding area. He noticed an airplane approaching the airport from the southeast on a northwesterly heading. The airplane was low over the wind turbines in the area, and after clearing the ridge line that they were on, began a 360-degree turn in a 45- to 60-degree angle of bank. He noticed that two landing gear were down, and from his vantage point thought that the airplane had a tail wheel. The airplane descended a couple of hundred feet during the turn. He noted that it was below the tree line at that point, and it continued the turn to a southwesterly heading. It started up a valley between two ridgelines and disappeared from his sight behind the nearest one. He stated that he had encountered downdrafts in that area on occasion, and didn't think that this was an area where one should fly low. He estimated that the airplane flew about 500 yards out of his sight; about 20 seconds after it disappeared, he saw white, then gray, then black smoke.
The pilot's friend, who is also a pilot, observed the airplane slowly flying around his home, and stated that he recognized it as his friend's airplane. He noted that the landing gear and partial flaps were down, and he observed a hand wave out the pilot's window. Shortly thereafter, the airplane turned to the west, and the gear began to retract. He returned to his previous activities, and within seconds heard a "whump" followed by silence. He moved to a better vantage point and observed smoke in the direction of his last observation of the airplane. PERSONNEL INFORMATIONA review of Federal Aviation Administration (FAA) airman records revealed that the 72-year-old pilot held a private pilot certificate with ratings for airplane single-engine land, multiengine land, and instrument airplane. He held a third-class medical certificate issued in July 6, 2010, with the limitation that he must wear corrective lenses for near and distant vision.
No personal flight records were located for the pilot. The IIC obtained the aeronautical experience listed in this report from an insurance application dated November 10, 2010. The pilot reported a total time of 2,218 hours with 1,422 hours in the make and model. AIRCRAFT INFORMATIONThe airplane was a Cessna P210, serial number P21000374. Logbooks were not recovered for the airframe or engine. An insurance application dated November 10, 2010, indicated a tachometer time of 509.0 hours and a Hobbs meter time of 592.2 hours. The oil filter on the airplane had markings dated April 23, 2011, that indicated a tachometer time of 2,411.1 hours and a Hobbs meter time of 1,936.4 hours.
The engine was a Continental Motors, Inc. (CMI) TSIO-520-P(5), serial number 278637-R. METEOROLOGICAL INFORMATIONAn automated surface weather observation at Tehachapi Municipal Airport (KTSP (elevation 4,001 feet msl) was issued at 1115 PDT. It indicated wind from 140 degrees at 15 knots gusting to 20 knots, 10 miles or greater visibility, clear sky, temperature at 23 degrees C, dew point 09 degrees C, and an altimeter setting at 30.10 inches of mercury. AIRPORT INFORMATIONThe airplane was a Cessna P210, serial number P21000374. Logbooks were not recovered for the airframe or engine. An insurance application dated November 10, 2010, indicated a tachometer time of 509.0 hours and a Hobbs meter time of 592.2 hours. The oil filter on the airplane had markings dated April 23, 2011, that indicated a tachometer time of 2,411.1 hours and a Hobbs meter time of 1,936.4 hours.
The engine was a Continental Motors, Inc. (CMI) TSIO-520-P(5), serial number 278637-R. WRECKAGE AND IMPACT INFORMATIONThe National Transportation Safety Board investigator-in-charge (IIC), an FAA inspector, and investigators from Cessna and CMI examined the wreckage at the accident site. The coordinates of the main wreckage were 35 degrees 04.08 minutes north latitude and 118 degrees 26.007 minutes west longitude. The debris path was along a magnetic heading of 215 degrees. The airplane came to rest upright on a northerly heading; the engine was inverted, and pointing about 90 degrees clockwise from the main wreckage.
The first identified point of contact (FIPC) was broken limbs near the top of a 20-foot tree. At the base of the tree were broken limbs and the red and white left wing tip fairing containing a red navigation lens. About 10 feet further into the debris path was a second tree with upper branches broken; near the base of this tree was the outboard rib and about 2 feet of skin from the left wing. Another 10 feet into the debris path was another tree with topped branches. The debris path was about 200 feet long from the FIPC to the main wreckage, and some separated pieces were about 120 feet from the debris path centerline. The next point of contact was the principle impact crater (PIC), which began about 20 feet before the final resting place of the main wreckage. Fire consumed the majority of the airframe skin and structure. Investigators identified remnants of all flight controls and airframe structure. MEDICAL AND PATHOLOGICAL INFORMATIONA postmortem examination was conducted by the Kern County Coroner; the cause of death was multiple blunt force injuries.
The FAA Forensic Toxicology Research Team, Oklahoma City, Oklahoma, performed toxicological testing of specimens of the pilot. The analysis contained no finding for ethanol in urine; they did not perform tests for carbon monoxide or cyanide.
The report contained the following findings for tested drugs: Tamsulosin detected in Liver; Terazosin detected in urine, and Terazosin detected in Liver. TESTS AND RESEARCHInvestigators from the NTSB, FAA, Cessna, and Continental Motors, Inc. (CMI), examined the wreckage at Aircraft Recovery Service, Littlerock, California, on September 7, 2011. A detailed report is part of the public docket for this accident. A postaccident examination of the airframe and engine revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.
The elevator trim actuator was extended 1.7 inches, which equated to 5 degrees tab up. The elevator trim cable was continuous from the tail to the chain in the cabin.
The flap actuator measured 4.7 inches; which indicated that 4.4 inches is the retracted position.