Midair Collision · NTSB WPR16FA065
BELLANCA 8KCAB — San Pedro, CA
| Date | February 5, 2016 |
| Location | San Pedro, CA |
| Aircraft | BELLANCA 8KCAB |
| Purpose of flight | Personal |
| Conditions | Day · Visual Meteorological Cond |
| Phase / occurrence | Maneuvering Midair collision |
| Pilot age | 72 |
| Pilot total time | 1,034 hrs · Experienced |
| Time in type | Unknown |
| Fatalities | 3 |
Probable cause
NTSB findings
- Personnel issues-Psychological-Attention/monitoring-Monitoring other aircraft-Pilot - C
- Personnel issues-Psychological-Attention/monitoring-Monitoring other aircraft-Pilot of other aircraft - C
- Environmental issues-Conditions/weather/phenomena-Light condition-Glare-Effect on operation - F
- Environmental issues-Conditions/weather/phenomena-Light condition-Glare-Effect on personnel - F
What happened
A private pilot and a pilot-rated passenger were on a personal cross-county flight in a Beechcraft M35, and a private pilot was on a local personal flight in a Bellanca 8KCAB when the airplanes collided in mid-air over an ocean harbor. Before the collision, the Beechcraft, a low-wing airplane, was descending from 3,500 ft, and flying in an east-northeast direction. The Bellanca, a high-wing airplane, was flying toward the sun in a west-northwest direction with intermittent radar returns between 3,000 and 3,500 ft.
Radar data showed the tracks of both airplanes converge with the airplanes approaching each other nearly head-on. The last radar return from the Beechcraft, just before the collision, was at 3,300 ft. Following the collision, both airplanes descended, impacted the ocean, and sank.
Postaccident examination of the recovered wreckage of both airplanes revealed no mechanical anomalies that would have precluded normal operation of either airplane. Postaccident examination did not identify any paint transfer marks on the airframe of either airplanes; however, not all the parts of the airplanes were recovered.
Ethanol was found in the tissues of each pilot, however, it is most likely that the ethanol was the result of post mortem production. Diphenhydramine, which can cause drowsiness and slow psychomotor reaction time, was detected in the Bellanca pilot's tissue; however, the lack of a blood sample precluded determination of the level of the drug present, and it could not be determined whether the Bellanca pilot was impaired by the effects of diphenhydramine.
All three pilots had a limitation on their Federal Aviation Administration medical certificates for eyeglasses; but two, the Beech pilot-rated passenger and the Bellanca pilot, only required them for near vision, which was not a factor in this accident. The Bellanca pilot had had cataract surgery on both eyes more than a year before the accident; this would be expected to significantly improve her vision and, therefore, likely did not contribute to the accident. Overall, it is unlikely that any problem with distant vision in any of the three pilots contributed to the accident.
It could not be determined why the Beechcraft pilot did not see the Bellanca. The Bellanca pilot was flying toward the sun, and sun glare could have contributed to her inability to see the approaching Beechcraft.