Spectrum Aeronautical Llc 33 accident near Spanish Fork, UT
On July 25, 2006, a Spectrum Aeronautical Llc 33 (airplane) was involved in an accident near Spanish Fork, UT. 2 people died. Damage to the aircraft: destroyed.
- Date
- July 25, 2006
- Place
- Spanish Fork, UT
- Aircraft
- Spectrum Aeronautical Llc 33 · Airplane
- Injuries
- 2 fatal, 0 serious, 0 minor
- Damage
- Destroyed
- Position
- 40.142°N, 111.661°W
- NTSB ID
- 20060731X01059
NTSB summary
HISTORY OF FLIGHT On July 25, 2006, approximately 1606 mountain daylight time, a Spectrum 33 experimental twin-engine jet airplane, N322LA, collided with terrain following a loss of control during the initial climb after takeoff from runway 30 at Spanish Fork-Springville Airport, Spanish Fork, Utah. The airplane, which was registered to and operated by Spectrum Aeronautical LLC, was destroyed by impact forces. The two commercial pilots aboard received fatal injuries. Visual meteorological conditions prevailed and no flight plan was filed for the 14 CFR Part 91 local maintenance test flight. The flight was originating when the accident occurred. Witnesses reported that the airplane entered a right roll almost immediately after liftoff. The roll continued to about 90 degrees right wing down at which point the right wingtip impacted the ground. PERSONNEL INFORMATION The pilot-in-command (PIC), who was seated in the left front seat, held a commercial pilot certificate with airplane single engine land, multiengine land, and instrument ratings. Additionally, he held a mechanic certificate with airframe and powerplant ratings. He held a first class medical certificate dated February 14, 2006, with the limitation, must wear corrective lenses. On the application for this medical certificate, the PIC reported that he had accumulated 2,350 hours total flight time with 100 hours flown in the past six months. According to the operator, he had accumulated a total time of 22 hours in the Spectrum 33 of which 16 hours were as pilot-in-command. The co-pilot, who was seated in the right fron
Probable cause
Incorrect installation by company maintenance personnel of the aft upper torque tube bell crank resulting in roll control that was opposite to that commanded in the cockpit. Contributing factors were the lack of maintenance documentation detailing the installation of the bell crank, the installing mechanic's incorrect assumption that the bell crank could only be installed in one position, and the
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Source: NTSB aviation accident database (US government, public domain). Findings may be preliminary or later revised by the NTSB. Not a complete global record.
