8 fatalities

RC-47D Surveillance Aircraft Shot Down by MiG-17 Near Sam Neua (43-48388)

Hòa Bình, VietnamFlight

On July 29, 1966, a Douglas C-47 Skytrain (DC-3) (registration 43-48388) operated by United States Air Force - USAF (since 1947) was involved in an aviation accident near Hòa Bình, Vietnam in flight. 8 people were killed. Investigators recorded the probable cause as: Shot down by the pilot of a North Vietnam Air Force MiG-17. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-12Data APIEditorial standards

An RC-47D on a surveillance mission near Sam Neua was shot down by a North Vietnam Air Force MiG-17 after approaching or crossing the border. All eight crew members were killed.

Mission and Incident

An RC-47D aircraft was dispatched on a surveillance mission in the vicinity of the Pathet Lao stronghold of Sam Neua. During the operation, the aircraft flew close to—and may have crossed—the border with North Vietnam. Although MiG fighters had occasionally been observed operating near the Laotian border, they were not considered a significant threat to aircraft in the Sam Neua area.

A North Vietnam Air Force MiG-17 executed a high-speed dash to the border and engaged the RC-47D, shooting it down before retreating deep into North Vietnamese territory.

Crew and Casualties

All eight crew members aboard the RC-47D were killed in the incident:

  • Captain Bernard Conklin
  • Captain Robert Eugene Hoskinson
  • First Lieutenant Vincent Augustus Chiarello
  • First Lieutenant Robert Joseph Di Tommaso
  • Major Galileo Fred Bossio
  • Technical Sergeant John Micheo Mamiya
  • Technical Sergeant Herbert Eugene Smith
  • Staff Sergeant James Shreve Hall

Source: Chris Hobson

Probable cause

Shot down by the pilot of a North Vietnam Air Force MiG-17