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ASN Wikibase Occurrence # 82662
Last updated: 22 July 2020
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Date:14-NOV-2010
Time:12:15
Type:Silhouette image of generic C150 model; specific model in this crash may look slightly different
Cessna 150J
Owner/operator:Kelly's Aviation
Registration: N60858
C/n / msn: 15070625
Fatalities:Fatalities: 1 / Occupants: 1
Aircraft damage: Substantial
Category:Accident
Location:Ryan Airfield, Tucson, Arizona -   United States of America
Phase: Landing
Nature:Training
Departure airport:Tucson, AZ (RYN)
Destination airport:Tucson, AZ (RYN)
Investigating agency: NTSB
Narrative:
A flight instructor, who was located adjacent to the accident site, reported that the commercial glider pilot was conducting his first solo takeoffs and landings as part of his training to obtain an airplane single-engine add-on rating. The instructor stated that the pilot conducted two uneventful takeoffs and landings and, during the third takeoff and approach to landing, everything looked normal. As the airplane was on short final approach for the runway, the flight instructor observed the airplane pitch downward and descend into terrain near the approach end of the runway. Postaccident examination of the airframe and engine revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation. Review of the pilot’s medical records revealed that he had longstanding, significant, untreated hypercholesterolemia. An autopsy on the pilot revealed that he had both “severe” coronary atherosclerotic disease and septal hypertrophy; both conditions put him at substantial risk for acute myocardial infarction or sudden cardiac arrhythmia. Neither event would be detectable by autopsy; however, it is likely that the pilot experienced a medical emergency and was incapacitated during the accident flight, rendering him unable to maintain airplane control.
Probable Cause: The pilot's inability to maintain airplane control while on final approach due to undiagnosed cardiac disease, which caused a medical emergency and subsequent pilot incapacitation.

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20101114X85519&key=1
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N60858


Revision history:

Date/timeContributorUpdates
15-Nov-2010 02:46 Geno Added
15-Nov-2010 13:40 Geno Updated [Date, Operator]
15-Nov-2010 15:02 harro Updated [Operator, Embed code]
16-Nov-2010 00:06 Anon. Updated [Operator, Embed code, Narrative]
19-Nov-2010 13:38 FLYINGBROTHER1 Updated [Operator, Embed code, Damage]
25-Jul-2013 13:20 misfit01 Updated [Date]
08-Dec-2014 19:13 lookout Updated [Date, Source]
21-Dec-2016 19:25 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
26-Nov-2017 18:37 ASN Update Bot Updated [Other fatalities, Departure airport, Destination airport, Source, Narrative]

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