# Ice/rain protection system - Type: NTSB finding section - Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft systems](https://openairdocs.org/ntsb-findings/0102) › Ice/rain protection system - NTSB code: 010230 - Cases: 127 - In the probable cause: 118 - Fatal cases: 13 - All cases: https://openairdocs.org/ntsb-findings/010230/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/010230/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/010230 ## Cases per year (in the probable cause / all) - 2008: 1 / 1 - 2009: 4 / 4 - 2010: 3 / 3 - 2011: 4 / 4 - 2012: 3 / 3 - 2013: 3 / 3 - 2014: 7 / 7 - 2015: 9 / 9 - 2016: 6 / 8 - 2017: 9 / 9 - 2018: 15 / 15 - 2019: 7 / 7 - 2020: 13 / 13 - 2021: 7 / 10 - 2022: 7 / 8 - 2023: 10 / 11 - 2024: 9 / 11 - 2025: 1 / 1 ## Findings - [Intake anti-ice, deice](https://openairdocs.org/ntsb-findings/01023020): 108 cases, 101 in the probable cause - [Airfoil anti-ice, deice](https://openairdocs.org/ntsb-findings/01023010): 6 cases, 5 in the probable cause - [Ice/rain protection system, general](https://openairdocs.org/ntsb-findings/01023000): 4 cases, 4 in the probable cause - [Pitot/static anti-ice](https://openairdocs.org/ntsb-findings/01023030): 4 cases, 4 in the probable cause - [Windows/windshields & doors](https://openairdocs.org/ntsb-findings/01023040): 3 cases, 3 in the probable cause - [Ice/rain prot sys wiring](https://openairdocs.org/ntsb-findings/01023097): 2 cases, 1 in the probable cause - [Ice detection](https://openairdocs.org/ntsb-findings/01023080): 1 cases, 1 in the probable cause ## Defining events in these cases - [Fuel related](https://openairdocs.org/ntsb-events/190): 50 cases - [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 26 cases - [Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342): 22 cases - [Fuel starvation](https://openairdocs.org/ntsb-events/191): 5 cases - [Flight instrument malf/fail](https://openairdocs.org/ntsb-events/334): 3 cases - [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 3 cases - [Structural icing](https://openairdocs.org/ntsb-events/210): 3 cases - [Fire/smoke (non-impact)](https://openairdocs.org/ntsb-events/150): 3 cases - [Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241): 2 cases - [Loss of control on ground](https://openairdocs.org/ntsb-events/230): 2 cases ## Aircraft models (registry) - [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150): 4 cases - [Piper PA-28-140](https://openairdocs.org/model/piper-pa-28-140): 3 cases - [Cessna 182A](https://openairdocs.org/model/cessna-182a): 3 cases - [Piper PA-44-180](https://openairdocs.org/model/piper-pa-44-180): 2 cases - [Piper PA-28-180](https://openairdocs.org/model/piper-pa-28-180): 2 cases - [Piper PA-28-161](https://openairdocs.org/model/piper-pa-28-161): 2 cases - [Piper PA-25-235](https://openairdocs.org/model/piper-pa-25-235): 2 cases - [Cessna 180J](https://openairdocs.org/model/cessna-180j): 2 cases - [Cessna 180](https://openairdocs.org/model/cessna-180): 2 cases - [Cessna 172P](https://openairdocs.org/model/cessna-172p): 2 cases ## Other findings in the same cases - [Conducive to carburetor icing](https://openairdocs.org/ntsb-findings/03031030) (Environmental issues): 103 cases - [Lack of action](https://openairdocs.org/ntsb-findings/02041030) (Personnel issues): 51 cases - [Use of equip/system](https://openairdocs.org/ntsb-findings/02063015) (Personnel issues): 27 cases - [Identification/recognition](https://openairdocs.org/ntsb-findings/02041510) (Personnel issues): 22 cases - [Delayed action](https://openairdocs.org/ntsb-findings/02041025) (Personnel issues): 21 cases - [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 11 cases - [Tree(s)](https://openairdocs.org/ntsb-findings/03022020) (Environmental issues): 8 cases - [Incorrect action performance](https://openairdocs.org/ntsb-findings/02041015) (Personnel issues): 6 cases - [Angle of attack](https://openairdocs.org/ntsb-findings/01062042) (Aircraft): 6 cases - [Conducive to structural icing](https://openairdocs.org/ntsb-findings/03031025) (Environmental issues): 5 cases ## Newest cases - [NTSB ANC25LA022](https://openairdocs.org/ntsb/ANC25LA022), Feb 28, 2025: Piper PA-18-150 (N3798Z), Anchor Point, AK, substantial damage. Probable cause: A complete loss of engine power as a result of carburetor ice due to the pilot’s failure to effectively use carburetor heat in conditions conducive to the formation of carburetor ice. - [NTSB ERA25LA028](https://openairdocs.org/ntsb/ERA25LA028), Oct 26, 2024: Cessna 150 (N22197), St. Agatha, ME, substantial damage. Probable cause: A partial loss of engine power due to carburetor ice as a result of the pilot’s delayed use of carburetor heat while operating in environmental conditions conducive to serious carburetor icing. - [NTSB ANC25LA005](https://openairdocs.org/ntsb/ANC25LA005), Oct 25, 2024: Cessna 150 (N10495), Lanai City, HI, substantial damage. Probable cause: A partial loss of engine power due to the formation of carburetor ice as a result of the pilot’s improper use of carburetor heat. - [NTSB CEN24LA360](https://openairdocs.org/ntsb/CEN24LA360), Sep 20, 2024: Piper PA-44-180 (N2083D), Shakopee, MN, substantial damage. Probable cause: The pilots’ failure to apply carburetor heat during the descent, which resulted in a loss of power on both engines due to carburetor ice. - [NTSB ERA24FA371](https://openairdocs.org/ntsb/ERA24FA371), Sep 8, 2024: Piper PA28R (N3757T), Vergennes, VT, substantial damage, 4 fatal. Probable cause: The flight instructor’s failure to maintain control of the airplane, which resulted in the airplane exceeding its critical angle of attack and entering an aerodynamic stall. Contributing to the… - [NTSB CEN24LA301](https://openairdocs.org/ntsb/CEN24LA301), Aug 3, 2024: Tailwind W10 (N129WT), West Livingston, TX, substantial damage. Probable cause: A partial loss of engine power due to carburetor ice. - [NTSB ERA24LA201](https://openairdocs.org/ntsb/ERA24LA201), Apr 25, 2024: Stinson 108 (N97517), Beach City, OH, substantial damage. Probable cause: A total loss of engine power due to the due to the pilot’s delayed application of carburetor heat. - [NTSB ERA24LA178](https://openairdocs.org/ntsb/ERA24LA178), Apr 15, 2024: Cessna 172 (N8337X), Manassas, VA, substantial damage. Probable cause: The pilot’s failure to apply carburetor heat before reducing engine power during a prolonged descent while operating in environmental conditions conducive to the development of carburetor ice, which… - [NTSB WPR24FA124](https://openairdocs.org/ntsb/WPR24FA124), Apr 14, 2024: Gulfstream 695A (N965BC), San Bernardino, CA, destroyed, 1 fatal. Probable cause: The pilot’s continued use of the airplane’s autopilot after flight into moderate to severe icing conditions, which resulted in an exceedance of the airplane’s critical angle of attack and an… - [NTSB ERA24LA164](https://openairdocs.org/ntsb/ERA24LA164), Mar 30, 2024: Piper PA-24-250 (N7538P), North Kingstown, RI, substantial damage. Probable cause: A total loss of engine power during final approach due to the pilot’s failure to recognize that the environmental conditions were susceptible to carburetor icing and apply carburetor heat, which… 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.