Troutdale

After takeoff from runway 25 at Troutdale Airport, the twin engine airplane climbed to an altitude of 1,700 feet when the pilot was contacted by ATC about the fact that his altitude was well above the VFR altitude restrictions for the Gresham-Troutdale area. The pilot reported handling problem when the airplane entered an uncontrolled descent and crashed onto a house located in Fairview, about two km southwest from runway 07 threshold, bursting into flames. Both occupants as well as one people in the house were killed. The airplane was en route to Saint George, Utah.

During the first 15 minutes of the flight, the pilot of the complex, high performance, jet airplane appeared to have difficulty maintaining the headings and altitudes assigned by air traffic controllers, and throughout the flight, responded intermittently to controller instructions. After reaching an altitude of 27,000 ft, the airplane began to deviate about 30° right of course while continuing to climb. The controller alerted the pilot, who did not respond, and the airplane continued to climb. Two minutes later, the airplane entered a tight, spiraling descent that lasted 8 minutes until the airplane impacted the ground at high speed in a rightwing-low attitude. The airplane was highly fragmented on impact; however, examination did not reveal any evidence of structural failure, in-flight fire, a bird strike, or a cabin depressurization event, and both engines appeared to be producing power at impact. Although the 72-year-old private pilot had extensive flight experience in multiple types of aircraft, including jets, he did not hold a type rating in the accident airplane, and the accident flight was likely the first time he had flown it solo. He had received training in the airplane about two months before the accident but was not issued a type rating and left before the training was complete. During the training, he struggled significantly in high workload environments and had difficulty operating the airplane’s avionics suite, which had recently been installed. He revealed to a fellow pilot that he preferred to “hand fly” the airplane rather than use the autopilot. The airplane’s heading and flight path before the spiraling descent were consistent with the pilot not using the autopilot; however, review of the flight path during the spiraling descent indicated that the speed variations appeared to closely match the airplane’s open loop phugoid response as documented during manufacturer flight tests; therefore, it is likely that the pilot was not manipulating the controls during that time.

Shortly after reaching a cruising altitude of 9,500 feet, the aircraft's course was observed on radar to change from southeasterly to southwesterly. Its average ground speed decreased from 170 knots to 108 knots during this track change. The pilot called ATC with his call sign, and about five seconds later, an unintelligible, one-second-long transmission was heard. At that same time, radar information showed the aircraft at 8,800 feet. Radar and radio contact were lost shortly thereafter. Three days later, wreckage was found where the aircraft had crashed. The crash site was 1,820 feet above sea level and 1/2 mile south-southwest of its last observed radar position; the aircraft's average descent angle from the 8,800-foot-altitude position to the crash site was about 51 degrees. The aircraft was extensively damaged during impact. No damage was noted on tall trees that surrounded the accident site. Also, no preimpact mechanical malfunction or failure of the aircraft or engines was found, and no pre-accident impairment of the pilot was found.

While cruising by night under IFR mode with the autopilot system ON, the twin engine aircraft struck the slope of a mountain located near Yakima. The wreckage was found a day later. The airplane was destroyed and the pilot has been killed.