United Air Lines Flight 615
United Airlines Douglas DC-6B · Controlled flight into terrain
From Boston Logan International Airport (BOS) to San Francisco International Airport, San Francisco, California
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
- 50 · all aircraft and ground
- Ground fatalities
- Unknown
- Occupants
- 50
- 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
Douglas DC-6B
- Flight
- UA615
- Aircraft type
- Douglas DC-6
- 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
- N37550
- Operator
- United Airlines
- Onboard fatalities
- 50
- Route
- From Boston Logan International Airport (BOS)To San Francisco International Airport, San Francisco, California
Approximate · Coordinates from the Wikipedia article; not checked against an investigation report.
From the Wikipedia article
United Air Lines Flight 615 was a US transcontinental east–west airline service from Boston to Hartford, Cleveland, Chicago, Oakland and San Francisco. On August 24, 1951, the Douglas DC-6 with registration N37550 operating the service, crashed on approach to Oakland, causing the death of all 44 passengers and 6 crew members on board.
The flight departed Chicago at 10:59 p.m. CST en route to Oakland. At around 4:16 a.m., the plane was approaching Oakland. At this time, the pilot, Marion W. Hedden of Los Altos, had talked with the control tower of the Civil Aeronautics Administration at the airport preparing for his landing, and had mentioned no trouble. At 4:25 a.m., Flight 615 was cleared for the straight-in approach into Oakland.
This approach clearance was the last radio transmission with the flight. The plane crashed into mountainous terrain 15 mi southeast of Oakland, careening into Tolman Peak and over its knoll, scattering on the downslope and into Dry Gulch Canyon below in a fiery explosion. All 50 persons on board perished.
After an investigation, it was determined that the pilot ignored the prescribed instrument landing procedures. The pilot instead relied on visual reference, using the copilot's automatic direction finder (ADF). The ADF threw the plane 3 mi off course and below the prescribed altitude of 3500 ft.
Text from the Wikipedia article “United Air Lines Flight 615” (revision 1371134919, 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: United Air Lines Flight 615
- Article
- United Air Lines Flight 615
- Revision
- 1371134919 · 2026-08-24 · retrieved 2026-09-18
- Wikidata
- Q5410510
- 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 "United Air Lines Flight 615" (page 1330450, revision 1371134919)
- 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
- airline flight number in the infobox
- 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.