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1934 United Air Lines Boeing 247 crash

23 Feb 1934 · Parley's Canyon, Summit County, Utah, United States

Boeing Air Transport Boeing 247 · Controlled flight into terrain in inclement weather

From Salt Lake City, Utah, United States to Cheyenne, Wyoming, United States

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Event

Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
Event fatalities
8 · all aircraft and ground
Ground fatalities
Unknown
Occupants
8
Survivors
0
InjuriesFatal: death within 30 days. Serious: over 48 hours in hospital within a week, most broken bones, severe bleeding, nerve or organ damage, or serious burns. Minor: anything less. Glossary
Unknown
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
Airline

Boeing 247

Aircraft type
Boeing 247
Category
Airplane · from aircraft type
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
NC13357
Onboard fatalities
8
Route
From Salt Lake City, Utah, United StatesTo Cheyenne, Wyoming, United States

Cause areas

  • Environmental issues › Conditions/weather/phenomena

From the investigation findings the Wikipedia article reports, sorted into the NTSB's cause areas with AI assistance.

Approximate · Coordinates from the Wikipedia article; not checked against an investigation report.

From the Wikipedia article

The 1934 United Air Lines Boeing 247 crash was an accident involving a Boeing Air Transport-operated United Air Lines scheduled flight of a Boeing 247, which crashed in bad weather shortly after departing Salt Lake City, Utah, on February 23, 1934, killing all eight on board. The cause was not immediately determined, but poor weather was considered a factor.

Accident site

The search party found the wreckage with the "nose buried deep in the earth and its broken tail standing upwards. Every part of it, except the wings, which were cracked, was smashed. In the front of the interior, the mangled bodies were heaped, that of Miss Carter on the top, indicating, it was believed, that she was in the rear of the cabin when the liner hurtled into the mountain."

It had crossed the summit of the pass and had proceeded about three-quarters of a mile on the other side when it dived. "The plane had apparently flown straight into the ground at high speed. The nose was thrust into the earth, the rear end was sticking into the air and the tail was broken off. Each wing and the body rested on three nearby pine trees."

The body of the stewardess was intact. Those of the two pilots and five passengers were mangled such that identification was possible only through jewelry and clothing.

Judge John C. Green, coroner of Summit County, Utah, took charge of the bodies as they were removed from the wreckage. They were carried over 2 mi of snowy trail, through heavy brush and rough country, to a roadhouse on the highway at the summit of Parley's Canyon, and then to Salt Lake City in an ambulance.

Investigation and cause

Investigation

Two investigations into the cause of the accident were underway on February 27, at Salt Lake City. One inquiry was launched by the Department of Commerce, under E. E. Hughes, aeronautics inspector, and E. L. Yuravich, airline inspector. The other was conducted by D. B. Colyer, of Chicago, vice president of United Air Lines. Company officials were unable to hazard a guess as to the cause of the crash, "due to the fact that the plane was so nearly demolished."

Both groups returned from the crash site in the Wasatch Mountains to Salt Lake City on the night of February 26, but both admitted to an inability to reach any conclusions. Unfavorable weather, they agreed, was a contributing factor.

Hughes ventured the opinion a definite determination of the tragedy appeared impossible. "I don't know whether we will ever be able to determine the cause of the crash," said Colyer. "And it wouldn't be right to advance all the theory[s] mentioned."

Colyer was assisted in his investigation by F. E. Caldwell, of Cheyenne, operations manager; John Maxzell, of Salt Lake City, another operations manager; and a staff of pilots.

Text from the Wikipedia article “1934 United Air Lines Boeing 247 crash” (revision 1368296870, retrieved 2026-09-18) by its authors, under CC BY-SA 4.0. Extracted as plain text: references, tables, images and some sections are left out. Read the article

Sources

Wikipedia article: 1934 United Air Lines Boeing 247 crash
Article
1934 United Air Lines Boeing 247 crash
Revision
1368296870 · 2026-08-08 · retrieved 2026-09-18
Wikidata
Q48851345
Licence
Text CC BY-SA 4.0, by the article's authors; Wikidata CC0; town positions GeoNames (CC BY 4.0)
Where each value comes from
Record
Wikipedia article "1934 United Air Lines Boeing 247 crash" (page 56316618, revision 1368296870)
Date
Wikipedia infobox: date
Place and country
Wikipedia infobox: site
Map position
Wikipedia article coordinates
Aircraft, operator and route
Wikipedia infobox: aircraft type, registration, operator, origin and destination; route airports from the linked airport articles' Wikidata codes (OurAirports)
Operation
operator is an airline according to Wikidata
Fatalities
Wikipedia infobox: aircraft fatalities
Ground fatalities
not stated in the Wikipedia infobox
Summary
Wikipedia infobox: summary
Source notes (1)
  • Wikipedia · Facts from the Wikipedia article's infobox and coordinates, not checked against an investigation report. Independent review pending.