# Predisposing condition - Type: NTSB finding subsection - Path: [Personnel issues](https://openairdocs.org/ntsb-findings/02) › [Physical](https://openairdocs.org/ntsb-findings/0201) › [Health/Fitness](https://openairdocs.org/ntsb-findings/020130) › Predisposing condition - NTSB code: 02013035 - Cases: 56 - In the probable cause: 19 - Fatal cases: 49 - All cases: https://openairdocs.org/ntsb-findings/02013035/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/02013035/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/02013035 ## Cases per year (in the probable cause / all) - 2008: 3 / 7 - 2009: 2 / 5 - 2010: 1 / 4 - 2011: 1 / 2 - 2012: 2 / 4 - 2013: 1 / 1 - 2014: 1 / 6 - 2015: 0 / 7 - 2016: 0 / 8 - 2017: 1 / 5 - 2018: 1 / 1 - 2019: 1 / 1 - 2022: 1 / 1 - 2023: 2 / 2 - 2024: 2 / 2 ## Defining events in these cases - [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 27 cases - [Miscellaneous/other](https://openairdocs.org/ntsb-events/900): 6 cases - [Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120): 5 cases - [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 3 cases - [Loss of control on ground](https://openairdocs.org/ntsb-events/230): 3 cases - [Medical event](https://openairdocs.org/ntsb-events/850): 2 cases - [VFR encounter with IMC](https://openairdocs.org/ntsb-events/401): 2 cases - [Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241): 2 cases - [Unknown or undetermined](https://openairdocs.org/ntsb-events/000): 2 cases - [External load event (Rotorcraft)](https://openairdocs.org/ntsb-events/480): 1 cases ## Aircraft models (registry) - [Robinson Helicopter R22 BETA](https://openairdocs.org/model/robinson-helicopter-r22-beta): 2 cases - [Bell 206-L4](https://openairdocs.org/model/bell-206-l4): 2 cases - [Northwing Design APACHE SPORT](https://openairdocs.org/model/northwing-design-apache-sport): 2 cases - [Temco GC-1B](https://openairdocs.org/model/temco-gc-1b): 1 cases - [Robinson Helicopter R44 II](https://openairdocs.org/model/robinson-helicopter-r44-ii): 1 cases - [Robinson Helicopter R44](https://openairdocs.org/model/robinson-helicopter-r44): 1 cases - [Piper PA-32R-301](https://openairdocs.org/model/piper-pa-32r-301): 1 cases - [Piper PA-32-260](https://openairdocs.org/model/piper-pa-32-260): 1 cases - [Piper PA-31-325](https://openairdocs.org/model/piper-pa-31-325): 1 cases - [Piper PA-30](https://openairdocs.org/model/piper-pa-30): 1 cases ## Other findings in the same cases - [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 29 cases - [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 14 cases - [Use of medication/drugs](https://openairdocs.org/ntsb-findings/02013020) (Personnel issues): 13 cases - [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 9 cases - [Performance/control parameters, general](https://openairdocs.org/ntsb-findings/01062000) (Aircraft): 9 cases - [Cardiovascular](https://openairdocs.org/ntsb-findings/02012050) (Personnel issues): 6 cases - [Prescription medication](https://openairdocs.org/ntsb-findings/02012025) (Personnel issues): 5 cases - [Angle of attack](https://openairdocs.org/ntsb-findings/01062042) (Aircraft): 5 cases - [Airspeed](https://openairdocs.org/ntsb-findings/01062010) (Aircraft): 5 cases - [Wire](https://openairdocs.org/ntsb-findings/03022032) (Environmental issues): 4 cases ## Newest cases - [NTSB WPR24FA104](https://openairdocs.org/ntsb/WPR24FA104), Mar 7, 2024: Kolb Firestar KXP (N4443G), Cave Junction, OR, substantial damage, 1 fatal. Probable cause: The pilot's exceedance of the airplane's critical angle of attack during a turn, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's use of potentially impairing… - [NTSB WPR24FA080](https://openairdocs.org/ntsb/WPR24FA080), Jan 30, 2024: Swanson R/Swanson S RV-6 (N30AK), Concord, CA, substantial damage, 1 fatal. Probable cause: A total loss of engine power during takeoff due to a separated fuel line and the pilot’s subsequent failure to maintain control of the airplane. Contributing to the accident were the pilot's medical… - [NTSB WPR24LA003](https://openairdocs.org/ntsb/WPR24LA003), Oct 2, 2023: Cessna 340A (N121CB), Hayward, CA, substantial damage. Probable cause: The pilot’s sudden incapacitation from effects of a previously undiagnosed underlying heart disease, which resulted in his loss of control of the airplane and subsequent impact with terrain. - [NTSB CEN23FA183](https://openairdocs.org/ntsb/CEN23FA183), May 14, 2023: Robinson R22 Beta (N40506), Brady, TX, incident, substantial damage, 1 fatal. Probable cause: The non-certificated pilot’s failure to ensure the collective friction control was adequately engaged during an on-ground engine run, which resulted in the helicopter inadvertently becoming airborne.… - [NTSB CEN23FA050](https://openairdocs.org/ntsb/CEN23FA050), Nov 28, 2022: Cessna 170 (N2710D), Gage, OK, destroyed, 2 fatal. Probable cause: The non-certificated pilots’ loss of airplane control, resulting in an impact with terrain during final approach. Contributing to the accident was the airplane owner’s impairment due to his use of… - [NTSB ERA19LA197](https://openairdocs.org/ntsb/ERA19LA197), Jun 15, 2019: Piper PA32 (N2750Q), Crisfield, MD, substantial damage. Probable cause: The pilot's sudden incapacitation from an undiagnosed cardiac arrhythmia while on final approach, which resulted in descent and collision with trees and terrain. - [NTSB WPR19LA013](https://openairdocs.org/ntsb/WPR19LA013), Oct 23, 2018: Robinson R44 (N4132H), Kaneohe, HI, substantial damage. Probable cause: The pilot’s sudden incapacitation from an undiagnosed heart condition during flight, which resulted in a hard landing. - [NTSB ERA18FA006](https://openairdocs.org/ntsb/ERA18FA006), Oct 7, 2017: Piper PA 25-235 (N90866), Front Royal, VA, destroyed, 1 fatal. Probable cause: The tow plane pilot's loss of airplane control for reasons that could not be determined based on the available evidence. Contributing to the accident was the glider instructor's diversion of… - [NTSB ERA18FA005](https://openairdocs.org/ntsb/ERA18FA005), Oct 5, 2017: Bryant C Crosby BC Ultra PUP (N484HC), Bardstown, KY, substantial damage, 1 fatal. Probable cause: The pilot's improper decision to initiate a flight in an airplane he had never flown and with no currency in any airplane nor a medical certificate, which resulted in his loss of airplane control.… - [NTSB ERA17FA211](https://openairdocs.org/ntsb/ERA17FA211), Jun 25, 2017: Buckeye Powered Parachutes Dream Machine 582 (N50130), Federalsburg, MD, substantial damage, 1 fatal. Probable cause: The pilot's failure to maintain aircraft control during takeoff, which resulted in a collision with power lines. Contributing to the accident was the pilot's lack of experience in powered parachutes. NTSB has coded findings and defining events since 2008; earlier cases used its older occurrence and cause codes and aren't counted. Findings: https://openairdocs.org/ntsb-findings.md. Defining events: https://openairdocs.org/ntsb-events.md. Phases of flight: https://openairdocs.org/ntsb-phases.md. Every investigation, filtered by finding, event, phase, state, year or model: https://openairdocs.org/ntsb.md (for example ?state=MI&fatal=1). NTSB's definitions: Accident and incident, 49 CFR 830.2 (https://www.ecfr.gov/current/title-49/subtitle-B/chapter-VIII/part-830/subpart-A/section-830.2), CICTT occurrence categories (PDF) (https://www.ntsb.gov/safety/data/Documents/datafiles/OccurrenceCategoryDefinitions.pdf), CICTT phases of flight (PDF) (https://www.ntsb.gov/safety/data/Documents/datafiles/PhaseofFlightDefinitions.pdf), and NTSB coding manual, before 2008 (PDF) (https://www.ntsb.gov/GILS/Documents/codman.pdf). NTSB publishes no definitions for its findings, only their names. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.