# Fog - Type: NTSB finding subsection - Path: [Environmental issues](https://openairdocs.org/ntsb-findings/03) › [Conditions/weather/phenomena](https://openairdocs.org/ntsb-findings/0303) › [Ceiling/visibility/precip](https://openairdocs.org/ntsb-findings/030350) › Fog - NTSB code: 03035055 - Cases: 78 - In the probable cause: 42 - Fatal cases: 51 - All cases: https://openairdocs.org/ntsb-findings/03035055/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/03035055/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/03035055 ## Cases per year (in the probable cause / all) - 2008: 8 / 11 - 2009: 4 / 7 - 2010: 0 / 6 - 2011: 0 / 6 - 2012: 4 / 9 - 2013: 3 / 9 - 2014: 2 / 3 - 2015: 2 / 2 - 2016: 3 / 3 - 2017: 4 / 5 - 2018: 0 / 1 - 2019: 4 / 4 - 2020: 2 / 3 - 2021: 2 / 4 - 2023: 2 / 3 - 2024: 2 / 2 ## Defining events in these cases - [Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120): 25 cases - [VFR encounter with IMC](https://openairdocs.org/ntsb-events/401): 21 cases - [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 15 cases - [Loss of visual reference](https://openairdocs.org/ntsb-events/402): 4 cases - [Runway excursion](https://openairdocs.org/ntsb-events/300): 2 cases - [Low altitude operation/event](https://openairdocs.org/ntsb-events/220): 2 cases - [Hard landing](https://openairdocs.org/ntsb-events/092): 2 cases - [Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470): 1 cases - [Landing area overshoot](https://openairdocs.org/ntsb-events/380): 1 cases - [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 1 cases ## Aircraft models (registry) - [Robinson Helicopter R44 II](https://openairdocs.org/model/robinson-helicopter-r44-ii): 4 cases - [Piper PA-28-140](https://openairdocs.org/model/piper-pa-28-140): 3 cases - [Piper PA-24-260](https://openairdocs.org/model/piper-pa-24-260): 2 cases - [Cirrus Design SR22](https://openairdocs.org/model/cirrus-design-sr22): 2 cases - [Cessna T182T](https://openairdocs.org/model/cessna-t182t): 2 cases - [Bell 407](https://openairdocs.org/model/bell-407): 2 cases - [Bell OH-58A](https://openairdocs.org/model/bell-oh-58a): 2 cases - [Beech A36](https://openairdocs.org/model/beech-a36): 2 cases - [Air Tractor AT-602](https://openairdocs.org/model/air-tractor-at-602): 2 cases - [Piper PA 46-350P](https://openairdocs.org/model/piper-pa-46-350p): 2 cases ## Other findings in the same cases - [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 43 cases - [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 24 cases - [Spatial disorientation](https://openairdocs.org/ntsb-findings/02022025) (Personnel issues): 24 cases - [Altitude](https://openairdocs.org/ntsb-findings/01062012) (Aircraft): 21 cases - [Low visibility](https://openairdocs.org/ntsb-findings/03035015) (Environmental issues): 19 cases - [Dark](https://openairdocs.org/ntsb-findings/03036020) (Environmental issues): 18 cases - [Low ceiling](https://openairdocs.org/ntsb-findings/03035010) (Environmental issues): 14 cases - [Weather planning](https://openairdocs.org/ntsb-findings/02061020) (Personnel issues): 9 cases - [Performance/control parameters, general](https://openairdocs.org/ntsb-findings/01062000) (Aircraft): 8 cases - [Below VFR minima](https://openairdocs.org/ntsb-findings/03035075) (Environmental issues): 7 cases ## Newest cases - [NTSB CEN24FA243](https://openairdocs.org/ntsb/CEN24FA243), Jun 30, 2024: Waco YKC (N14137), Selden, KS, substantial damage, 2 fatal. Probable cause: The pilot's inadvertent visual flight into instrument meteorological conditions, which had not been forecast at the time of departure, and which resulted in a loss of control due to spatial… - [NTSB CEN24LA104](https://openairdocs.org/ntsb/CEN24LA104), Feb 2, 2024: Piper PA24 (N4284), Cherokee, OK, substantial damage. Probable cause: A partial loss of engine power for reasons that could not be determined. Contributing to the accident was the presence of ground fog, which hindered the landing approach and resulted in the pilot… - [NTSB WPR23FA257](https://openairdocs.org/ntsb/WPR23FA257), Jul 8, 2023: Cessna 550 (N819KR), Murrieta, CA, destroyed, 6 fatal. Probable cause: The flight crew’s decision to descend below the decision altitude of an instrument approach without having the appropriate runway visual reference(s) distinctively identified and with the visibility… - [NTSB CEN23FA125](https://openairdocs.org/ntsb/CEN23FA125), Mar 7, 2023: Robinson Helicopter R44 (N494SH), Port O'Connor, TX, destroyed, 2 fatal. Probable cause: The pilot’s initiation of the visual flight into instrument meteorological conditions, which resulted in spatial disorientation and a subsequent loss of helicopter control. Contributing to the… - [NTSB CEN23FA084](https://openairdocs.org/ntsb/CEN23FA084), Jan 17, 2023: Piper PA46 (N963MA), Yoakum, TX, substantial damage, 4 fatal. Probable cause: The pilot’s spatial disorientation during a missed approach in instrument meteorological conditions, which led to an exceedance of the airplane’s critical angle of attack and a subsequent aerodynamic… - [NTSB ERA22FA098](https://openairdocs.org/ntsb/ERA22FA098), Dec 31, 2021: Robinson Helicopter R44 II (N442VB), Bronson, FL, destroyed, 4 fatal. Probable cause: A loss of control due to spatial disorientation as a result of the noninstrument-rated pilot’s improper decision to attempt a visual flight rules flight at night into an area of known reduced… - [NTSB WPR22LA032](https://openairdocs.org/ntsb/WPR22LA032), Nov 9, 2021: Bell OH-58A (N902SF), Holtville, CA, substantial damage. Probable cause: The pilot’s failure to maintain helicopter control after becoming spatially disoriented when the helicopter entered low-level haze/fog. - [NTSB ERA22FA014](https://openairdocs.org/ntsb/ERA22FA014), Oct 13, 2021: Piper PA-24-260 (N9126P), Blairsville, GA, destroyed, 1 fatal. Probable cause: The pilot’s decision to commence the flight in low IFR weather conditions, and making immediate turns after takeoff in IMC, resulting in spatial disorientation and a loss of airplane control. - [NTSB ERA22LA007](https://openairdocs.org/ntsb/ERA22LA007), Oct 7, 2021: Bell Helicopter Textron Canada 429 (N505TJ), Batavia, NY, substantial damage. Probable cause: The pilot’s failure to disengage the autopilot prior to climbing out of a fog bank. - [NTSB CEN21LA111](https://openairdocs.org/ntsb/CEN21LA111), Nov 26, 2020: Cessna T182T (N182PP), Hollister, MO, substantial damage. Probable cause: The pilot’s failure to maintain proper airspeed control during an instrument approach in instrument meteorological conditions, which led to a bounced landing, collapsing the nose landing gear, and… 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.