Date:	Monday 10 January 1938
Time:	15:07
Type:	Lockheed 14-H Super Electra
Owner/operator:	Northwest Airlines
Registration:	NC17388
MSN:	1407
Year of manufacture:	1937
Fatalities:	Fatalities: 10 / Occupants: 10
Aircraft damage:	Destroyed, written off
Category:	Accident
Location:	22 km NE of Bozeman, MT -   United States of America
Phase:	En route
Nature:	Passenger - Scheduled
Departure airport:	Butte Airport, MT (BTM/KBTM)
Destination airport:	Billings Municipal Airport, MT (BIL/KBIL)
Investigating agency:	CAB

Narrative:
Crashed after structural failure of the tail due to tail flutter.

The Lockheed Twins / P.J. Marsden
Lockheed Aircraft Since 1913 / Rene J. Francillon

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