Loss of Control in Flight · NTSB WPR13FA083
LUSCOMBE 8A — Oceano, CA
| Date | January 3, 2013 |
| Location | Oceano, CA |
| Aircraft | LUSCOMBE 8A |
| Purpose of flight | Personal |
| Conditions | Day · Visual Meteorological Cond |
| Phase / occurrence | Uncontrolled descent Collision with terr/obj (non-CFIT) |
| Pilot age | 56 |
| Pilot total time | 7,000 hrs · High time |
| Time in type | 99,999 hrs |
| Fatalities | 1 |
Probable cause
NTSB findings
- Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Pilot - C
- Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Altitude-Not attained/maintained - C
- Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
- Personnel issues-Physical-Impairment/incapacitation-Illicit drug-Pilot - F
What happened
Witnesses reported that they observed the airplane flying low above the beach before it ascended abruptly. When the airplane was about 150 to 200 feet above the ground, the ascent stopped, and the airplane then descended in a nose low attitude to ground impact. Witnesses also reported that the engine sounded normal during the accident sequence. Postaccident examination of the airframe and engine revealed no preimpact mechanical malfunctions or failures that would have precluded normal operation.
The pilot had a reported history of marijuana abuse. Toxicology testing on the pilot was positive for tetrahydrocannabinol at levels that indicate he was likely impaired during the flight. This impairment likely affected the pilot's ability to maintain airplane control and his decision to begin a low-level flight maneuver at an altitude that was not sufficient for recovery before impact with the ground.