Boeing Vertol BV-107 II accident near Canby, OR
On October 4, 1996, a Boeing Vertol BV-107 II (helicopter) was involved in an accident near Canby, OR. 3 people died. Damage to the aircraft: destroyed.
- Date
- October 4, 1996
- Place
- Canby, OR
- Aircraft
- Boeing Vertol BV-107 II · Helicopter
- Injuries
- 3 fatal, 0 serious, 0 minor
- Damage
- Destroyed
- Position
- 45.211°N, 122.660°W
- NTSB ID
- 20001208X06966
NTSB summary
HISTORY OF FLIGHT On October 4, 1996, approximately 1215 hours Pacific daylight time, a Boeing Vertol BV-107 II, 196CH, registered to and operated by Columbia Helicopters, Inc., was destroyed when it collided with terrain following a loss of control in flight during cruise. The crash site was three miles east of the southern boundary of the Aurora airport (refer to CHART I). A post crash fire confined to the engine area was extinguished following the crash. Both pilots and the onboard mechanic were fatally injured. Visual meteorological conditions existed and no flight plan had been filed. The flight, which was a conformity maintenance check flight, was to have been operated under 14CFR91, and originated from the Aurora airport, Aurora, Oregon, at 1138. Witnesses, many of whom were initially attracted by the unusual sounds from the rotorcraft, reported observing it maneuvering erratically in the vicinity of the accident site, and then tumbling out of control to ground impact. Specifically, one witness reported observing the rotorcraft's rotor blades impact one another. Another witness described the sound as like "metal hitting" and described the maneuvers as "flipping." Another witness reported seeing the rotorcraft flying "straight and level for three or four seconds before it went vertical." Several other witnesses observed the rotorcraft flying away from the Aurora airport approximately 30 minutes before the accident and then return during which they observed it "tumble" (refer to witness statements and attached FAA witness statement transcriptions). A flight instructor
Probable cause
failure of maintenance personnel to install a cotter pin in a clevis bolt in the flight control system, which resulted in the aft directional and lateral control output pushrod to become disconnected from a bellcrank in the forward portion of the first stage mixing unit. A factor relating to the accident was the use of an improper bellcrank, which was wider in the clevis area.
More accidents in OR
- Cessna T207A, Aug 21, 1986
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- Piper PA 46-310P, Apr 7, 2017
- Cessna 172, Jun 23, 2012
Browse: Oregon
Source: NTSB aviation accident database (US government, public domain). Findings may be preliminary or later revised by the NTSB. Not a complete global record.
