| Occurrence | |
|---|---|
| Date | 29 October 2009 |
| Summary | Mid-air collision |
| Site | The Pacific Ocean, 24 kilometres (15 mi) east of San Clemente Island, California 32°57′40″N 118°05′31″W / 32.961°N 118.092°W |
| Total fatalities | 9 |
| Total survivors | 0 |
| First aircraft | |
,_USA_-_Coast_Guard_AN1270741.jpg) A USCG Lockheed HC-130 Hercules similar to the one involved in the collision | |
| Type | Lockheed HC-130H Hercules |
| Name | 1705 |
| Operator | United States Coast Guard |
| Registration | 1705 |
| Flight origin | McClellan Airfield |
| Destination | McClellan Airfield |
| Crew | 7 |
| Fatalities | 7 |
| Survivors | 0 |
| Second aircraft | |
 An AH-1W SuperCobra of the U.S. Marine Corps | |
| Type | Bell AH-1W Super Cobra |
| Operator | United States Marine Corps |
| Crew | 2 |
| Fatalities | 2 |
| Survivors | 0 |
The 2009 California mid-air collision occurred at sea, west of San Diego, on 29 October. It involved a Lockheed HC-130H Hercules of the United States Coast Guard and a Bell AH-1 SuperCobra of the U.S. Marine Corps. There were no survivors among the nine crewmates aboard either aircraft.