1986 Grand Canyon mid-air collision
| Accident | |
|---|---|
| Date | June 18, 1986 |
| Summary | Mid-air collision |
| Site | Grand Canyon National Park, Arizona, United States |
| Total fatalities | 25 |
| Total survivors | 0 |
| First aircraft | |
| N76GC, the aircraft involved in the collision, seen in August 1983 | |
| Type | DHC-6 Twin Otter |
| Operator | Grand Canyon Airlines |
| Call sign | CANYON 6 |
| Registration | N76GC |
| Flight origin | Grand Canyon National Park Airport, United States |
| Destination | Grand Canyon National Park Airport, United States |
| Occupants | 20 |
| Passengers | 18 |
| Crew | 2 |
| Fatalities | 20 |
| Survivors | 0 |
| Second aircraft | |
| A Bell 206 similar to the helicopter involved in the collision | |
| Type | Bell 206 |
| Operator | Helitech |
| Call sign | TECH 2 |
| Registration | N6TC |
| Flight origin | Tusayan, Arizona, United States |
| Destination | Tusayan, Arizona, United States |
| Occupants | 5 |
| Passengers | 4 |
| Crew | 1 |
| Fatalities | 5 |
| Survivors | 0 |
The Grand Canyon mid-air collision occurred when Grand Canyon Airlines Flight 6, a de Havilland Canada DHC-6 Twin Otter, collided with a Bell 206 helicopter, Helitech Flight 2, over Grand Canyon National Park on June 18, 1986. All 25 passengers and crew on board the two aircraft were killed. It remained the deadliest accident involving a helicopter on United States soil for nearly 40 years, surpassing the crash of Los Angeles Airways Flight 841 in 1968, until being surpassed itself by the Potomac River mid-air collision in 2025.