# NTSB investigations: Continental IO-520 series: Loss of engine power (partial) NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. ## Latest cases - [NTSB WPR25LA228](https://openairdocs.org/ntsb/WPR25LA228.md): Beech V35 · Astoria, OR · Accident · No injuries · Class 3 · Limited · Preliminary report · Jul 23, 2025 · N3785Q · Substantial damage > On July 22, 2025, about 1706 Pacific daylight time, a Beechcraft Bonanza V35, N3785Q, sustained substantial damage when it was involved in an accident near Astoria, Oregon. The pilot and passenger were not injured. The airplane was operated as a Title 14 Code… - [NTSB CEN25LA182](https://openairdocs.org/ntsb/CEN25LA182.md): Beech F33A · Houston, TX · Accident · No injuries · Class 3 · Limited · Preliminary report · May 16, 2025 · N6376S · Destroyed > On May 16, 2025, about 1459 central daylight time, a Beech F33A airplane, N6376S, was destroyed when it was involved in an accident near Houston, Texas. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91… - [NTSB ERA24FA318](https://openairdocs.org/ntsb/ERA24FA318.md): Beech A36 · Ronkonkoma, NY · Accident · 2 fatal · Class 3 · Field · Final report · Jul 22, 2024 · N1089W · Substantial damage > A loss of engine power during initial climb for undetermined reasons. Contributing to the outcome was the pilot's failure to maintain control of the airplane following the loss of engine power and his decision to perform an intersection takeoff which, reduced… - [NTSB ANC24LA045](https://openairdocs.org/ntsb/ANC24LA045.md): Cessna 206 · King Salmon, AK · Accident · No injuries · Class 3 · Limited · Final report · Jun 7, 2024 · N756CL · Substantial damage > A partial loss of engine power due to detonation/preignition of the No. 1 cylinder for reasons that could not be determined. - [NTSB ERA22LA235](https://openairdocs.org/ntsb/ERA22LA235.md): Cessna 310 · Caryville, FL · Accident · No injuries · Class 3 · Limited · Final report · May 23, 2022 · N310DC · Substantial damage > An in-flight loss of engine power on both engines for undetermined reasons. - [NTSB ERA22FA126](https://openairdocs.org/ntsb/ERA22FA126.md): Beech 58 · Lexington, NC · Accident · 1 fatal · Class 3 · Field · Final report · Feb 16, 2022 · N58LF · Destroyed > Inadequate maintenance, which led to a partial loss of both right and left engine power during takeoff, and the pilot’s subsequent failure to maintain airspeed while maneuvering with one engine at low altitude. Contributing to the accident was the pilot’s… - [NTSB CEN21LA391](https://openairdocs.org/ntsb/CEN21LA391.md): Cessna 320 · Windthorst, TX · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 29, 2021 · N222L · Substantial damage > A forced landing due to a loss of engine power on the right engine for a reason that could not be determined based on the available evidence. - [NTSB WPR21LA030](https://openairdocs.org/ntsb/WPR21LA030.md): Cessna 310 · Las Vegas, NV · Accident · 2 fatal · Class 3 · Limited · Final report · Oct 29, 2020 · N101G · Destroyed > The pilot’s failure to maintain the airplane’s minimum controllable airspeed while maneuvering with one engine inoperative. Also causal was the loss of power in the left engine due to oil starvation. Contributing to the accident were inadequate maintenance… - [NTSB WPR19LA128](https://openairdocs.org/ntsb/WPR19LA128.md): Beech 35 · Sedona, AZ · Accident · No injuries · Class 3 · Limited · Final report · May 1, 2019 · N6864Q · Substantial damage > The partial loss of engine power due to deteriorated O-rings in the throttle metering assembly. Contributing to the accident was non-compliance with the manufacturer's recommended throttle metering assembly overhaul schedule. - [NTSB CEN18LA350](https://openairdocs.org/ntsb/CEN18LA350.md): Cessna A188 · Atchison, KS · Accident · No injuries · Limited investigation · Final report · Aug 22, 2018 · N78417 · Substantial damage > The partial loss of engine power for reasons that could not be determined during the postaccident examination. - [NTSB CEN17LA328](https://openairdocs.org/ntsb/CEN17LA328.md): Beech A36 · Gonzales, LA · Accident · No injuries · Limited investigation · Final report · Aug 17, 2017 · N48TZ · Substantial damage > A partial loss of engine power due to inadequate maintenance, including worn spark plugs and a leaking fuel hose fitting. - [NTSB WPR17LA136](https://openairdocs.org/ntsb/WPR17LA136.md): Cessna 310R · Santa Ana, CA · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 30, 2017 · N87297 · Substantial damage > The pilot’s inability to maintain adequate airspeed after a loss of power to the right engine while maneuvering in the pattern to return to the airport. Contributing to the accident were the loss of power to the right engine for reasons that could not be… - [NTSB CEN17LA104](https://openairdocs.org/ntsb/CEN17LA104.md): Beech D55 · Columbus, OH · Accident · No injuries · Limited investigation · Final report · Feb 14, 2017 · N88EB · Substantial damage > The partial loss of left engine power during takeoff and initial climb, which led to a hard landing in gusting crosswind conditions. The reason for the loss of engine power could not be determined because postaccident examination of the left engine revealed… - [NTSB CEN16LA115](https://openairdocs.org/ntsb/CEN16LA115.md): Beech V35 · Seymour, IN · Accident · No injuries · Limited investigation · Final report · Feb 27, 2016 · N2714T · Substantial damage > The pilot's improper placement of the fuel selector handle between two tank positions, which resulted in a restricted fuel flow to the engine and the initial loss of engine power, and his improper decision to use the high-boost auxiliary fuel pump for an… - [NTSB CEN16LA082](https://openairdocs.org/ntsb/CEN16LA082.md): Beech V35B · Tahlequah, OK · Accident · No injuries · Limited investigation · Final report · Dec 23, 2015 · N4523A · Substantial damage > A partial loss of engine power shortly after takeoff due to an inadequately tightened fuel line. Also causal was the pilot's failure to extend the landing gear once the airplane was in a position to safely land on the runway. - [NTSB CEN15LA050](https://openairdocs.org/ntsb/CEN15LA050.md): Cessna 401A · Fulton, MO · Accident · Serious injuries · Limited investigation · Final report · Nov 17, 2014 · N401ME · Substantial damage > A failure of the right engine magneto distributor drive gears, which resulted in a total loss of engine power during takeoff. Contributing to the accident was the operator’s failure to inspect and maintain the magnetos in accordance with the engine… - [NTSB CEN14CA395](https://openairdocs.org/ntsb/CEN14CA395.md): Cessna A188B · Milford, NE · Accident · No injuries · Data collection · Final report · Jul 23, 2014 · N730GU · Substantial damage > The pilot's improper engine mixture setting which reduced available engine power, and his inadvertent retraction of flaps which resulted in an impact with crops and terrain. - [NTSB CEN13FA476](https://openairdocs.org/ntsb/CEN13FA476.md): Beechcraft F33A · Ennis, TX · Accident · 2 fatal · Field investigation · Final report · Aug 11, 2013 · N4514S · Substantial damage > The loss of engine power for reasons that could not be determined during postaccident examinations due to postcrash fire damage. - [NTSB ERA13LA214](https://openairdocs.org/ntsb/ERA13LA214.md): Beech 35-C33A · Knoxville, TN · Accident · Serious injuries · Limited investigation · Final report · Apr 25, 2013 · N2713T · Substantial damage > The loss of engine power during takeoff for a reasons that could not be determined because postaccident examinations and testing revealed no anomalies that would have precluded normal operation. - [NTSB CEN12LA515](https://openairdocs.org/ntsb/CEN12LA515.md): Beech E-55 · Houston, TX · Accident · No injuries · Limited investigation · Final report · Aug 2, 2012 · N3644A · Substantial damage > A damaged ignition harness, which resulted in a partial loss of engine power. - [NTSB ERA12LA365](https://openairdocs.org/ntsb/ERA12LA365.md): Cessna A188B · Dansville, NY · Accident · Minor injuries · Limited investigation · Final report · May 26, 2012 · N9629G · Substantial damage > A partial loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation. - [NTSB CEN12LA261](https://openairdocs.org/ntsb/CEN12LA261.md): Beech A36 · Albuquerque, NM · Accident · No injuries · Limited investigation · Final report · Apr 26, 2012 · N4830M · Substantial damage > The partial loss of engine power due to an intake valve that was stuck in the open position. - [NTSB CEN11FA508](https://openairdocs.org/ntsb/CEN11FA508.md): Beech A36 · Williston, ND · Accident · 1 fatal · Field investigation · Final report · Jul 26, 2011 · N41MK · Substantial damage > The pilot's improper fuel management, which resulted in fuel starvation and a partial loss of engine power while maneuvering at a low altitude. - [NTSB WPR11LA253](https://openairdocs.org/ntsb/WPR11LA253.md): Cessna A188B · Pine Bluffs, WY · Accident · No injuries · Limited investigation · Final report · Jun 2, 2011 · N9496G · Substantial damage > A partial loss of engine power during takeoff for reasons that could not be determined because postaccident examination did not reveal any mechanical malfunctions or failures that would have precluded normal operation. - [NTSB WPR10FA473](https://openairdocs.org/ntsb/WPR10FA473.md): Hawker Beechcraft F33 · Phoenix, AZ · Accident · 1 fatal · Field investigation · Final report · Sep 27, 2010 · N1600W · Substantial damage > A partial loss of engine power during approach for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. - [NTSB CEN10LA399](https://openairdocs.org/ntsb/CEN10LA399.md): Beech V35A · Truth or Consequences, NM · Accident · No injuries · Limited investigation · Final report · Jul 11, 2010 · N9447S · Substantial damage > A total loss of engine power for undetermined reasons. - [NTSB ANC10FA029](https://openairdocs.org/ntsb/ANC10FA029.md): Cessna 206 · Homer, AK · Accident · Minor injuries · Field investigation · Final report · Mar 23, 2010 · N522HA · Substantial damage > The fatigue failure of the No. 4 engine cylinder head resulting in a loss of engine power. Contributing to the severity of the accident was the pilot's decision to attempt a low altitude turn back to the airport, resulting in a loss of control. - [NTSB DEN08LA103](https://openairdocs.org/ntsb/DEN08LA103.md): Cessna A188B · Lyons, KS · Accident · No injuries · Limited investigation · Final report · Jun 12, 2008 · N9639G · Substantial damage > the loss of engine power for undetermined reasons. A contributing factor was the dirt embankment. - [NTSB ANC08LA032](https://openairdocs.org/ntsb/ANC08LA032.md): Cessna 207 · Aniak, AK · Accident · Serious injuries · Limited investigation · Final report · Jan 16, 2008 · N1701U · Substantial damage > A partial loss of engine power for an undetermined reason. Contributing to the accident were the pilot's inadvertent encounter with IMC conditions, and a whiteout during his attempted go-around from an emergency landing approach. ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1 WHERE c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17032') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '342')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb-events/342/cases?engine=17032 --- 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.