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ASN Wikibase Occurrence # 152201
Last updated: 29 August 2021
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Type:Silhouette image of generic L8 model; specific model in this crash may look slightly different
Luscombe 8A
Registration: N45923
MSN: 2450
Fatalities:Fatalities: 1 / Occupants: 1
Aircraft damage: Substantial
Location:Oceano Dunes SVRA, San Luis Obispo County, Oceano, CA -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Departure airport:Oceano, CA (L52)
Destination airport:Oceano, CA (L52)
Investigating agency: NTSB
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 pilotís 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.

Probable Cause: The pilotís failure to maintain airplane control and his improper decision to begin a low-level maneuver at an altitude that was not sufficient for recovery before ground impact. Contributing to the accident was the pilotís impairment from marijuana use.



Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Download report: Final report

Revision history:

03-Jan-2013 03:24 gerard57 Added
03-Jan-2013 09:21 Geno Updated [Time, Aircraft type, Registration, Cn, Location, Phase, Source, Damage, Narrative]
03-Jan-2013 09:39 Alpine Flight Updated [Damage, Narrative]
09-Jan-2013 22:22 Geno Updated [Time, Phase, Departure airport, Destination airport, Source, Narrative]
21-Dec-2016 19:28 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
28-Nov-2017 14:05 ASN Update Bot Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative]

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