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msn 361
DHC-6 Twin Otter Series 300
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msn 361

Ser 300


• Registration • Activity and details of Owner/Operator and other historical information

• N361V de Havilland Canada Inc.,  Downsview, ON. Rolled out on unknown date in 1973. First flight on unknown date in 1973.

• N361V Delivered to Intermountain Aviation, Marana, AZ., (361 Associates Ltd Tucson, AZ). 11-May-1973.

• N361V Leased to Rocky Mountain Airways, Denver, CO. Jan-1975.

• N361V Returned to Mountain West Aviation, Tuscon AZ, 1978.

• N361V Transferred to Sierra Pacific Airlines, Tuscon AZ. (361 Associates Ltd Tucson, AZ). Jul-1978.

Service Difficulty Report 03-Jan-1979. Upon removal of filter housing the spring dropped into engine oil tank. Could not retrieve pin.

• N361V Sold to Sierra Pacific Airlines, Tuscon, AZ., 19-Feb-1982.

Note Sierra Pacific Aviation became Mountain West in Feb 1976, which is now owned by Sierra Pacific Group.

• N361V Sierra Pacific Airlines, Tuscon, AZ. Regd 19-Mar-1982.

• N361V 61 Victor Associates Ltd., Tucson, AZ.  Regd 01-Jun-1982

• N361V Leased to Transwestern Airlines, Salt Lake City, UT., 13-Dec-1982. Canx 30-May-1985.

Flew Marana, AZ - Boise, ID on delivery for Transwestern lease.

Note: Ventral baggage pod installation completed by Western Aircraft Maintenance, Boise 21/22-Dec-1982.

Accident: 1,7 km (1.1 mls) S of Hailey-Sun Valley Airport, ID 15-Feb-1983. The Twin Otter, operating on a flight for Transwestern, approached Hailey runway 31 at an altitude of 800 feet when the captain reduced power. Suddenly, the aircraft nosed over and descended steeply. The pilot tried to control the descent by adding power. The plane crash-landed on a highway, veered off and struck a 4 feet high snow bank.

PROBABLE CAUSE: "The in-flight loss of elevator control following separation of the control rod from the torque tube at a connection where the company's maintenance department had used a non-standard, unsecured bolt, which the company's inspection department had failed to detect. Contributing to the accident was the company's failure to maintain the separation of maintenance and inspection functions required by the maintenance program approved by the Federal Aviation Administration, and the failure of the FAA to detect the company's deviation from approved maintenance procedures during surveillance inspection."

Written off

N361V at Redding, California
Photo: John Stewart © September 1975 - Michael J. Ody Collection
N361V at Tucson - KTUS, Arizona.
Photo: B. Knowles © 02 May 1977 - Michael J. Ody Collection
N361V serving with mountainwest.
Photo: Unknown photographer © 1977 - Michael J. Ody Collection
N361V in SIERRA PACIFIC titles, at Marana - MZJ.
Photo: Unknown photographer © November 1980 - Michael J. Ody Collection
N361V minus titles, still at Marana - MZJ.
Photo: Tim Williams © June 1982 - Michael J. Ody Collection