| Crash location | Unknown |
| Nearest city | Chino Hills, CA
33.893626°N, 117.727277°W |
| Tail number | N675B |
|---|---|
| Accident date | 19 Dec 1987 |
| Aircraft type | Beech A35 |
| Additional details: | None |
FAILURE OF BOTH PILOTS TO SEE AND AVOID EACH OTHER AND THUS AVERT THE COLLISION.