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
- Unknown
- Event fatalities
- Unknown
- Ground fatalities
- Unknown
- Occupants
- Unknown
- Survivors
- Unknown
- 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
- Unknown
North American X-15
- Aircraft type
- North American X-15
- 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
- Unknown
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From not recordedTo not recorded
Approximate · Coordinates from the Wikipedia article; not checked against an investigation report.
From the Wikipedia article
X-15 Flight 3-65-97, also known as X-15 Flight 191 (being the 191st free flight of the X-15), was a sub-orbital spaceflight of the North American X-15 experimental spaceplane, carrying seven experiments to a peak altitude of 266,000 ft, above NASA's definition of the start of space at 50 mi but below the Kármán line definition at 100 km. The flight, on November 15, 1967, ended when the aircraft broke apart during its descent due to technical difficulties, killing the pilot Michael J. Adams and destroying the aircraft.
Investigation and cause
Investigation
NASA and the Air Force convened an accident board. Chaired by NASA's Donald R. Bellman, the board took two months to prepare its report. Ground parties scoured the countryside looking for wreckage, specifically the film from the cockpit camera. The weekend after the accident, an unofficial NASA Flight Research Center (FRC) search party found the camera, but could not find the film cartridge. FRC engineer Victor W. Horton organized a search and on November 29, during the first pass over the area, Willard E. Dives found the cassette.
The accident board found that the cockpit instrumentation had been functioning properly, and concluded that Adams had lost control of the X-15 as a result of a combination of distraction, misinterpretation of his instrumentation display, and possible vertigo. The electrical disturbance early in the flight degraded the overall effectiveness of the aircraft's control system and further added to pilot workload.
The board made two major recommendations: install a telemetered heading indicator in the control room, visible to the flight controller; and medically screen X-15 pilot candidates for labyrinth (vertigo) sensitivity. As a result of the X-15's crash, the FRC added a ground-based "8 ball" attitude indicator in the control room to furnish mission controllers with real time pitch, roll, yaw, heading, angle of attack, and side-slip information.
Text from the Wikipedia article “X-15 Flight 3-65-97” (revision 1374959371, 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: X-15 Flight 3-65-97
- Article
- X-15 Flight 3-65-97
- Revision
- 1374959371 · 2026-09-15 · retrieved 2026-09-18
- Wikidata
- Q8041409
- 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 "X-15 Flight 3-65-97" (page 30857361, revision 1374959371)
- Date
- Wikipedia article text, read with AI assistance: date
- Place and country
- Wikipedia article text, read with AI assistance: site; country from Wikidata (P17)
- Map position
- Wikipedia article coordinates
- Aircraft, operator and route
- Wikipedia article text, read with AI assistance: aircraft type, registration, operator, origin and destination; route airports from the linked airport articles' Wikidata codes (OurAirports)
- Operation
- Reviewed correction (2026-09-26): "Flight 3-65-97" is the X-15 research programme's flight number, not an airline flight: the article describes "a sub-orbital spaceflight of the North American X-15 experimental spaceplane" and doesn't say in its lead who operated it, so the operation is left unknown rather than shown as Airline.
- Fatalities
- not stated in the Wikipedia infobox
- Ground fatalities
- not stated in the Wikipedia infobox
- Summary
- Wikipedia article lead
Source notes (1)
- Wikipedia · Facts from the Wikipedia article's infobox and coordinates, not checked against an investigation report. Independent review pending.