# Propeller feather/reversing - Type: NTSB finding subsection - Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft propeller/rotor](https://openairdocs.org/ntsb-findings/0104) › [Propeller system](https://openairdocs.org/ntsb-findings/010461) › Propeller feather/reversing - NTSB code: 01046123 - Cases: 26 - In the probable cause: 23 - Fatal cases: 13 - All cases: https://openairdocs.org/ntsb-findings/01046123/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01046123/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/01046123 ## Cases per year (in the probable cause / all) - 2008: 2 / 2 - 2009: 1 / 1 - 2010: 1 / 1 - 2011: 1 / 1 - 2012: 2 / 3 - 2014: 1 / 1 - 2015: 4 / 4 - 2016: 1 / 1 - 2017: 1 / 1 - 2018: 1 / 1 - 2019: 2 / 2 - 2020: 2 / 3 - 2021: 1 / 1 - 2022: 2 / 2 - 2023: 0 / 1 - 2024: 1 / 1 ## Defining events in these cases - [Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342): 5 cases - [Miscellaneous/other](https://openairdocs.org/ntsb-events/900): 3 cases - [Landing area overshoot](https://openairdocs.org/ntsb-events/380): 3 cases - [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 3 cases - [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 2 cases - [Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340): 2 cases - [Fuel starvation](https://openairdocs.org/ntsb-events/191): 2 cases - [Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470): 1 cases - [Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330): 1 cases - [Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241): 1 cases ## Aircraft models (registry) - [Cessna 208B](https://openairdocs.org/model/cessna-208b): 2 cases - [Smith AEROSTAR 601P](https://openairdocs.org/model/smith-aerostar-601p): 1 cases - [Raytheon 58](https://openairdocs.org/model/raytheon-58): 1 cases - [Piper PA 46-350P](https://openairdocs.org/model/piper-pa-46-350p): 1 cases - [Piper PA-31P](https://openairdocs.org/model/piper-pa-31p): 1 cases - [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350): 1 cases - [Piper PA-30](https://openairdocs.org/model/piper-pa-30): 1 cases - [Piper PA-23-250](https://openairdocs.org/model/piper-pa-23-250): 1 cases - [Beechcraft TC-12B](https://openairdocs.org/model/beechcraft-tc-12b): 1 cases - [Douglas DC3C-65TP](https://openairdocs.org/model/douglas-dc3c-65tp): 1 cases ## Other findings in the same cases - [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 8 cases - [Use of equip/system](https://openairdocs.org/ntsb-findings/02063015) (Personnel issues): 7 cases - [Airspeed](https://openairdocs.org/ntsb-findings/01062010) (Aircraft): 7 cases - [Delayed action](https://openairdocs.org/ntsb-findings/02041025) (Personnel issues): 6 cases - [Fuel](https://openairdocs.org/ntsb-findings/01071010) (Aircraft): 4 cases - [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 3 cases - [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 3 cases - [Identification/recognition](https://openairdocs.org/ntsb-findings/02041510) (Personnel issues): 3 cases - [Engine out control](https://openairdocs.org/ntsb-findings/01062025) (Aircraft): 3 cases - [Adequacy of policy/proc](https://openairdocs.org/ntsb-findings/04021015) (Organizational issues): 2 cases ## Newest cases - [NTSB ERA24LA223](https://openairdocs.org/ntsb/ERA24LA223), May 20, 2024: Beechcraft TC-12B (N762MC), Lehigh Acres, FL, substantial damage. Probable cause: The asymmetric reverse thrust during the landing roll for reasons that could not be determined, resulting in the flightcrew’s inability to maintain directional control and a subsequent runway… - [NTSB ERA23FA274](https://openairdocs.org/ntsb/ERA23FA274), Jun 25, 2023: Piper PA-30 (N7240Y), Claxton, GA, substantial damage, 3 fatal. Probable cause: The flight crew’s improper fuel management, which resulted in the airplane’s right engine being starved of fuel and its subsequent total loss of power. - [NTSB ERA22LA237](https://openairdocs.org/ntsb/ERA22LA237), May 9, 2022: Diamond DA42 (N988JA), Lehighton, PA, substantial damage. Probable cause: The flight instructor’s inadequate supervision of the flight and his failure to secure the right engine following an unsuccessful engine restart attempt, which resulted in the airplane’s inability to… - [NTSB WPR22LA114](https://openairdocs.org/ntsb/WPR22LA114), Feb 24, 2022: Cessna 208B (N10JA), Oceanside, CA, substantial damage. Probable cause: The pilot’s intentional inflight operation of the propeller in beta, which led to an aerodynamic lock, his inability to restore forward thrust, and subsequent collision with terrain. - [NTSB CEN22LA085](https://openairdocs.org/ntsb/CEN22LA085), Dec 28, 2021: Beech A100 (N93GT), West Helena, AR, substantial damage. Probable cause: The malfunction of the propeller autofeather system after takeoff for undetermined reasons, which resulted in both propellers going into feather and a hard landing. - [NTSB ERA20CA296](https://openairdocs.org/ntsb/ERA20CA296), Aug 24, 2020: Beech 55 (N8629M), Nashville, TN, substantial damage. Probable cause: The pilot's inadvertent feathering of the propellers during the landing flare, which resulted in a hard landing. A factor in the accident was the instructor's failure to fully monitor the pilot's… - [NTSB ERA20LA202](https://openairdocs.org/ntsb/ERA20LA202), Jun 2, 2020: Piper PA23 (N14181), San Juan, PR, substantial damage, 2 fatal. Probable cause: The pilot’s intentional operation of the airplane with known deficiencies of the left engine and subsequent in-flight loss of control after takeoff. Contributing to the loss of engine power was… - [NTSB ERA20CA112](https://openairdocs.org/ntsb/ERA20CA112), Feb 23, 2020: Beech 58 (N60SH), Augusta, GA, substantial damage. Probable cause: The pilot's failure to land and stop the airplane within the available runway, which resulted in a runway overrun. Contributing to the outcome was the pilot's inadvertent feathering of both… - [NTSB ANC19LA046](https://openairdocs.org/ntsb/ANC19LA046), Aug 18, 2019: Cessna 208B (N879MA), Lahaina, HI, substantial damage. Probable cause: The pilots’ failure to maintain a proper approach speed and their decision to continue the approach for landing, which resulted in the airplane landing long and a subsequent runway overrun. - [NTSB CEN19LA056](https://openairdocs.org/ntsb/CEN19LA056), Jan 21, 2019: Douglas DC3C (N467KS), Kidron, OH, substantial damage, 2 fatal. Probable cause: The loss of airplane control after an engine flameout and auto-feather system interruption during the takeoff climb, which resulted in an impact with terrain. 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.