# NTSB investigations: Continental IO-520 series, OK

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.

Page 1 of 2 · 80 cases

## Latest cases

- [NTSB CEN23LA423](https://openairdocs.org/ntsb/CEN23LA423.md): Beech A36 · Broken Bow, OK · Accident · 1 fatal · Class 3 · Limited · Final report · Sep 29, 2023 · N9379Q · Substantial damage
  > The pilot’s failure to maintain the runway centerline during landing and subsequent failure to maintain clearance from the airport grounds worker during the landing roll. Contributing to the accident was the absence of a NOTAM for mowing operations at the…
- [NTSB CEN23LA224](https://openairdocs.org/ntsb/CEN23LA224.md): Beech A36 · Oklahoma City, OK · Accident · No injuries · Class 3 · Limited · Final report · Jun 4, 2023 · N9169Q · Substantial damage
  > A loss of engine power during approach for landing for undetermined reasons.
- [NTSB CEN23LA186](https://openairdocs.org/ntsb/CEN23LA186.md): Beech F33A · Tahlequah, OK · Accident · Serious injuries · Class 4 · Limited · Final report · May 6, 2023 · N2294L · Minor damage
  > The pilot’s failure to remove the wheel chocks before engine start which resulted in the inadvertent contact with the propeller while the engine was running.
- [NTSB CEN23FA060](https://openairdocs.org/ntsb/CEN23FA060.md): Beech F33A · Yukon, OK · Accident · 3 fatal · Class 3 · Field · Final report · Dec 6, 2022 · N9142Q · Destroyed
  > The pilot’s loss of airplane control for reasons that could not be determined.
- [NTSB CEN22LA343](https://openairdocs.org/ntsb/CEN22LA343.md): Beech E33A · Zena, OK · Accident · No injuries · Class 3 · Limited · Final report · Jul 21, 2022 · N7555N · Substantial damage
  > The pilot’s inadequate preflight inspection and fuel planning, and improper in-flight decision making which resulted in a total loss of engine power due to fuel exhaustion.
- [NTSB CEN22LA140](https://openairdocs.org/ntsb/CEN22LA140.md): Beech A36 · Heavner, OK · Accident · No injuries · Class 3 · Limited · Final report · Mar 12, 2022 · N9410Q · Substantial damage
  > A total loss of engine power due to oil exhaustion which resulted from improper engine maintenance.
- [NTSB CEN20CA226](https://openairdocs.org/ntsb/CEN20CA226.md): Bellanca 17 30 · Talihina, OK · Accident · No injuries · Class 4 · Data collection · Final report · Jun 7, 2020 · N6681V · Substantial damage
  > The pilot's failure to maintain control of the airplane during a crosswind landing, which resulted in a hard landing and runway excursion.
- [NTSB ERA18FA114](https://openairdocs.org/ntsb/ERA18FA114.md): Beech V35 · Hydro, OK · Accident · 2 fatal · Field investigation · Final report · Mar 26, 2018 · N7019N · Destroyed
  > The pilot's decision to continue the night visual flight rules flight into instrument meteorological conditions, which resulted in a loss of control due to spatial disorientation. Contributing was the pilot's lack of instrument/night currency, and his failure…
- [NTSB CEN18FA023](https://openairdocs.org/ntsb/CEN18FA023.md): Beech V35B · Alva, OK · Accident · 2 fatal · Field investigation · Final report · Nov 4, 2017 · N777PH · Destroyed
  > The flight instructor's and pilot's failure to recognize that a high descent rate had developed on short final, likely due to their distraction by an open engine cowling, and the unexpected strong pitch-down force during flap extension due to the installation…
- [NTSB CEN17LA357](https://openairdocs.org/ntsb/CEN17LA357.md): Beech A36 · McAlester, OK · Accident · Minor injuries · Limited investigation · Final report · Sep 15, 2017 · N18403 · Substantial damage
  > A total loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any evidence of mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB CEN17LA286](https://openairdocs.org/ntsb/CEN17LA286.md): Beech V35 · Walters, OK · Accident · Minor injuries · Limited investigation · Final report · Jul 8, 2017 · N6257V · Substantial damage
  > Maintenance personnel’s installation of an improper vacuum pump gasket, which resulted in oil starvation to the engine and a subsequent total loss of engine power.
- [NTSB CEN17LA242](https://openairdocs.org/ntsb/CEN17LA242.md): Bellanca 17 30 · Grove, OK · Accident · No injuries · Limited investigation · Final report · Jun 25, 2017 · N14728 · Substantial damage
  > An unporting of fuel in the right wing while maneuvering in the airport traffic pattern, which resulted in a partial loss of engine power due to fuel starvation.
- [NTSB CEN17FA138](https://openairdocs.org/ntsb/CEN17FA138.md): Beech V35 · Union City, OK · Accident · 1 fatal · Field investigation · Final report · Mar 24, 2017 · N2053Y · Destroyed
  > The pilot's improper recovery from a spin.
- [NTSB CEN16LA217](https://openairdocs.org/ntsb/CEN16LA217.md): Bellanca 17 30 · Westport, OK · Accident · Minor injuries · Limited investigation · Final report · Jun 11, 2016 · N7346V · Substantial damage
  > A total loss of engine power due to fuel starvation and the pilot's mismanagement of the available fuel.
- [NTSB CEN16LA090](https://openairdocs.org/ntsb/CEN16LA090.md): Bellanca 17-30A · Overbrook, OK · Accident · No injuries · Limited investigation · Final report · Jan 17, 2016 · N194DW · Substantial damage
  > The pilot’s inadequate preflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion, and his subsequent decision to circle to the north end of the airport due to a light tailwind condition instead of making a downwind landing.
- [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 CEN14CA092](https://openairdocs.org/ntsb/CEN14CA092.md): Cessna 210E · Guymon, OK · Accident · Minor injuries · Data collection · Final report · Dec 20, 2013 · N2382F · Substantial damage
  > The pilot's failure to maintain adequate airspeed during takeoff, which resulted in an aerodynamic stall and collision with terrain.
- [NTSB CEN13LA132](https://openairdocs.org/ntsb/CEN13LA132.md): Bellanca 17-30A · Antlers, OK · Accident · No injuries · Limited investigation · Final report · Jan 7, 2013 · N222EG · Substantial damage
  > The pilot's improper fuel management, which resulted in a total loss of engine power due to fuel starvation.
- [NTSB CEN11LA101](https://openairdocs.org/ntsb/CEN11LA101.md): Beech 95-C55 · Claremore, OK · Accident · Serious injuries · Limited investigation · Final report · Dec 3, 2010 · N211DS · Substantial damage
  > A loss of engine power on both engines for undetermined reasons.
- [NTSB CEN10LA159](https://openairdocs.org/ntsb/CEN10LA159.md): Cessna TU206 · Ninnekah, OK · Accident · Minor injuries · Limited investigation · Final report · Mar 14, 2010 · N4974F · Substantial damage
  > A loss of engine power due to fuel exhaustion, resulting from the pilot’s inadequate preflight inspection.
- [NTSB CEN10FA071](https://openairdocs.org/ntsb/CEN10FA071.md): Cessna 310R · Alva, OK · Accident · 1 fatal · Field investigation · Final report · Dec 13, 2009 · N310CR · Substantial damage
  > The pilot's impairment due to medication use, a migraine headache, or both, and his decision to continue the approach below minimums without the proper visual references, resulting in the subsequent collision with terrain. Contributing to the accident was the…
- [NTSB CEN09FA462](https://openairdocs.org/ntsb/CEN09FA462.md): Beech V35 · Oklahoma City, OK · Accident · 1 fatal · Field investigation · Final report · Jul 25, 2009 · N9112S · Substantial damage
  > The pilot’s decision to operate an airplane with known deficiencies, and the loss of engine power during climb for undetermined reasons.
- [NTSB DFW08CA047](https://openairdocs.org/ntsb/DFW08CA047.md): Cessna 210 · Medford, OK · Accident · No injuries · Data collection · Final report · Dec 21, 2007 · N5957F · Substantial damage
  > The pilot's decision to attempt a night landing without runway lighting. A contributing factor was inoperative runway lights.
- [NTSB DFW08FA015](https://openairdocs.org/ntsb/DFW08FA015.md): Beech A36 · Glenpool, OK · Accident · 5 fatal · Field investigation · Final report · Oct 17, 2007 · N978TL · Destroyed
  > The pilot's failure to maintain control of the airplane after departure, which resulted in a collision with power lines. A factor was the high winds.
- [NTSB DFW07LA108](https://openairdocs.org/ntsb/DFW07LA108.md): Cessna A188A · Clinton, OK · Accident · Serious injuries · Limited investigation · Final report · May 11, 2007 · N4413Q · Substantial damage
  > Separation of the exhaust stack and resulting vapor lock. A contributing factor was the none suitable terrain for the forced landing.
- [NTSB DFW07FA039](https://openairdocs.org/ntsb/DFW07FA039.md): Bellanca 17-30A · Jay, OK · Accident · 3 fatal · Field investigation · Final report · Dec 17, 2006 · N39858 · Substantial damage
  > The loss of engine power for undetermined reasons and the pilot's improper decision to extend the landing gear for the water landing. Contributing factors were the prevailing night conditions and the lack of suitable terrain for the forced landing.
- [NTSB SEA04FA165](https://openairdocs.org/ntsb/SEA04FA165.md): Cessna T210L · Tulsa, OK · Accident · 3 fatal · Field investigation · Final report · Aug 17, 2004 · N2452S · Destroyed
  > The pilot's inadequate preflight inspection by his failure to secure the oil cap, which resulted in oil leakage on the windscreen, obstructing his vision, and his failure to maintain adequate airspeed.
- [NTSB FTW04LA162](https://openairdocs.org/ntsb/FTW04LA162.md): Cessna 188B · Rush Springs, OK · Accident · Minor injuries · Limited investigation · Final report · Jun 15, 2004 · N21650 · Substantial damage
  > The pilot's failure to maintain clearance with a utility pole and power lines while maneuvering during an aerial application.
- [NTSB FTW03LA151](https://openairdocs.org/ntsb/FTW03LA151.md): Cessna A188B · Kinta, OK · Accident · No injuries · Limited investigation · Final report · May 15, 2003 · N4931R · Substantial damage
  > The loss of engine power due to fuel exhaustion. Contributing factors were the pilot's failure to supervise the refueling of the aircraft and failure to use his before takeoff checklist.
- [NTSB FTW01LA080](https://openairdocs.org/ntsb/FTW01LA080.md): Cessna 210D · Lawton, OK · Accident · No injuries · Limited investigation · Final report · Mar 15, 2001 · N210HS · Substantial damage
  > the pilot's failure to maintain aircraft control during the landing flare/touchdown. A contributing factor was the crosswind.
- [NTSB FTW00LA028](https://openairdocs.org/ntsb/FTW00LA028.md): Cessna 210K · Ponca City, OK · Accident · No injuries · Limited investigation · Final report · Oct 30, 1999 · N1162M · Substantial damage
  > Inadequate quality control by the manufacturer of the throttle control cable, which resulted in failure of the cable due to fatigue. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW99LA253](https://openairdocs.org/ntsb/FTW99LA253.md): Cessna A188B · Randalette, OK · Accident · No injuries · Limited investigation · Final report · Sep 5, 1999 · N731PW · Substantial damage
  > The failure of the pilot to maintain clearance with the telephone pole. A factor was the sunglare.
- [NTSB FTW97LA211](https://openairdocs.org/ntsb/FTW97LA211.md): Beech 58 · Oklahoma City, OK · Accident · Minor injuries · Limited investigation · Final report · Jun 7, 1997 · N22SS · Substantial damage
  > The pilot's impairment of judgment and performance due to alcohol which led to an attempted takeoff in an airplane without an elevator installed.
- [NTSB FTW96LA094](https://openairdocs.org/ntsb/FTW96LA094.md): Cessna A188B · Enid, OK · Accident · No injuries · Limited investigation · Final report · Jan 12, 1996 · N4744Q · Substantial damage
  > The pilot's failure to maintain sufficient airspeed during the forced landing and to jettison the aircraft's load for a forced landing. A factor was the engine's failure due to a disconnected fuel line which was the result of improper maintenance.
- [NTSB FTW96LA034](https://openairdocs.org/ntsb/FTW96LA034.md): Cessna T210F · Tulsa, OK · Accident · No injuries · Limited investigation · Final report · Oct 27, 1995 · N6115R · Substantial damage
  > the pilot's failure to secure a cellular telephone which jammed the rudder pedals.
- [NTSB FTW95LA200](https://openairdocs.org/ntsb/FTW95LA200.md): Beech D55 · Norman, OK · Accident · No injuries · Limited investigation · Final report · May 13, 1995 · N993ES · Substantial damage
  > The pilot's inadvertent retraction of the landing gear, resulting in a gear up landing.
- [NTSB FTW92FA232](https://openairdocs.org/ntsb/FTW92FA232.md): Cessna 310R · Idabel, OK · Accident · 1 fatal · Field investigation · Final report · Sep 26, 1992 · N616CA · Destroyed
  > The pilot's descent below the minimum descent altitude. Factors were the pilot's improper IFR procedure, low ceiling, and dark night conditions.
- [NTSB FTW92LA122](https://openairdocs.org/ntsb/FTW92LA122.md): Cessna A188B · Washita, OK · Accident · No injuries · Limited investigation · Final report · Apr 6, 1992 · N70321 · Substantial damage
  > The failure of the main landing gear during the forced landing due to corrosion and fatigue. A factor was the power loss due to a fractured crankshaft.
- [NTSB FTW91LA062](https://openairdocs.org/ntsb/FTW91LA062.md): Cessna A188B · Tipton, OK · Accident · No injuries · Limited investigation · Final report · Apr 6, 1991 · N4165J · Substantial damage
  > Failure of the pilot to maintain poroper clearance above obstacles. A factor was the sun glare.
- [NTSB FTW87LA189](https://openairdocs.org/ntsb/FTW87LA189.md): Beech V35B · El Reno, OK · Accident · Minor injuries · Limited investigation · Final report · Aug 5, 1987 · N9048Q · Substantial damage
  > Acft bounced on touchdown and began porpoising down the runway. According to the plt, following the second bounce, the rt front seat passenger applied full throttle and the acft veered left into a fence. After striking the fence the nose gear collapsed when…
- [NTSB FTW85LA322](https://openairdocs.org/ntsb/FTW85LA322.md): Cessna A188B · Cushing, OK · Accident · Minor injuries · Limited investigation · Final report · Aug 15, 1985 · N21814 · Destroyed
  > The plt was test flying the acft after a major eng overhaul.a left turn was made away from the arpt after takeoff and immediately thereafter the eng lost pwr. With no suitable landing area within gliding distance, the acft was manuevered straight ahead where…
- [NTSB FTW85LA199](https://openairdocs.org/ntsb/FTW85LA199.md): Beech A-36 · Afton, OK · Accident · No injuries · Limited investigation · Final report · Apr 25, 1985 · N77HT · Substantial damage
  > The acft was ditched in 60 to 80 ft deep water following a loss of pwr shortly after takeoff. The plt was picked up by a bass boat shortly before the acft sank. The acft was recovered more than a month later and an examination of the eng was not performed.
- [NTSB FTW84LA385](https://openairdocs.org/ntsb/FTW84LA385.md): Cessna A188B · Maysville, OK · Accident · No injuries · Limited investigation · Final report · Sep 11, 1984 · N9560G · Destroyed
  > With aprx 300 ft of rwy remaining the plt rotated. The acft flew to about 15 ft before it settled back to the ground at the end of the sod strip. After rolling through 2 fences the acft collided with a dirt bank next to a ditch collapsing the main gear. The…
- [NTSB FTW84LA051](https://openairdocs.org/ntsb/FTW84LA051.md): Bellanca 17-30 · Moore, OK · Accident · Serious injuries · Limited investigation · Final report · Nov 11, 1983 · N7337V · Substantial damage
  > The acft crashed during a forced landing after the engine quit. The acft had a prior forced landing and the fuel pump was suspect. Post accident investigation showed that only one safety pin was installed in the fuel selector shaft allowing excessive free…
- [NTSB FTW83FA310](https://openairdocs.org/ntsb/FTW83FA310.md): Beech A36 · Enid, OK · Accident · 2 fatal · Field investigation · Final report · Jul 1, 1983 · N23684 · Destroyed
  > Prior to takeoff the plt was advised the winds were from 180 deg at 20 KTS gusting to 27 KTS. During takeoff from rwy 17THE plt advised the tower that he was 'bringing it around to land on 30.' When asked if he was experiencing any difficulties the plt…
- [NTSB FTW82DPJ07](https://openairdocs.org/ntsb/FTW82DPJ07.md): Cessna 401 · Oklahoma City, OK · Accident · No injuries · Closed · Nov 27, 1981 · N4099Q · Substantial damage
- [NTSB FTW81DPJ39](https://openairdocs.org/ntsb/FTW81DPJ39.md): Cessna 188B · Anioch, OK · Accident · No injuries · Closed · Sep 20, 1981 · N9560G · Substantial damage
- [NTSB FTW81DPJ41](https://openairdocs.org/ntsb/FTW81DPJ41.md): Beech A36 · Stillwater, OK · Accident · No injuries · Closed · Aug 21, 1981 · N440SU · Substantial damage
- [NTSB FTW81DPM15](https://openairdocs.org/ntsb/FTW81DPM15.md): Cessna A188B · Mcalester, OK · Accident · Serious injuries · Closed · Jun 30, 1981 · N4823Q · Destroyed
- [NTSB FTW81DPJ15](https://openairdocs.org/ntsb/FTW81DPJ15.md): Cessna 188 · Seiling, OK · Accident · No injuries · Closed · Apr 9, 1981 · N4830R · Substantial damage

Next page: https://openairdocs.org/ntsb.md?engine=17032&state=OK&page=2

## 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."eventStateOrRegion" = 'OK' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17032'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=17032&state=OK

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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.
