# NTSB investigations: Continental IO-520 series, WY

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 WPR12LA301](https://openairdocs.org/ntsb/WPR12LA301.md): Cessna A188B · Cheyenne, WY · Accident · Serious injuries · Limited investigation · Final report · Jul 10, 2012 · N4831R · Substantial damage
  > The pilot's failure to maintain clearance with a power line. Contributing to the accident was the sun's glare.
- [NTSB WPR12LA309](https://openairdocs.org/ntsb/WPR12LA309.md): Beech A36 · Rock Springs, WY · Accident · No injuries · Limited investigation · Final report · Jun 22, 2012 · N4972M · Substantial damage
  > The total loss of engine power due to fuel starvation because of the incorrectly installed fuel cap. Contributing to the accident was the pilot’s decision to continue the flight using fuel from the left fuel tank after she observed fuel streaming from the…
- [NTSB WPR11CA468](https://openairdocs.org/ntsb/WPR11CA468.md): Beech 36 · Riverton, WY · Accident · No injuries · Data collection · Final report · Sep 24, 2011 · N7549N · Substantial damage
  > The pilot's inadvertent retraction of the landing gear during the landing roll.
- [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 WPR11FA228](https://openairdocs.org/ntsb/WPR11FA228.md): Bellanca 17-30A · Rock Springs, WY · Accident · 2 fatal · Field investigation · Final report · May 18, 2011 · N93577 · Substantial damage
  > The pilot’s decision to continue flight into an area of known adverse weather, which resulted in an accumulation of structural ice that led to a loss of control and in-flight breakup. Also causal was the pilot’s inadequate preflight weather planning.
- [NTSB DEN06FA001](https://openairdocs.org/ntsb/DEN06FA001.md): Beechcraft V35B · Barnum, WY · Accident · 2 fatal · Field investigation · Final report · Oct 4, 2005 · N9085Q · Destroyed
  > the pilot's improper in-flight planning and decision to continue flight into forecasted icing conditions and the pilot's inability to maintain aircraft control due to wing contamination in the form of ice. Contributing factors included the weather conditions…
- [NTSB DEN05CA116](https://openairdocs.org/ntsb/DEN05CA116.md): Cessna 210E · Saratoga, WY · Accident · No injuries · Data collection · Final report · Jul 29, 2005 · N2361F · Substantial damage
  > the pilot's failure to maintain aircraft control and the pilot's improper preflight planning/preparation. Contributing factors include the pilot's failure to maintain airspeed resulting in an inadvertent stall/mush, the pilot's failure to calculate a weight…
- [NTSB DEN03LA089](https://openairdocs.org/ntsb/DEN03LA089.md): Beech A36 · Afton, WY · Accident · No injuries · Limited investigation · Final report · May 26, 2003 · N2106L · Substantial damage
  > the pilot's failure to achieve an adequate climb rate, resulting in an inflight collision with the sign. Contributing factors were the pilot's improper mixture leaning procedure, the high density altitude, his failure to abort the takeoff in a timely manner,…
- [NTSB DEN03FA040](https://openairdocs.org/ntsb/DEN03FA040.md): Beech V35B · Rock Springs, WY · Accident · 1 fatal · Field investigation · Final report · Jan 30, 2003 · N935V · Destroyed
  > the pilot's failure to maintain adequate airspeed, resulting in a stall. Factors contributing to the accident were the icing conditions, low altitude, and the high gusting winds.
- [NTSB DEN01FA135](https://openairdocs.org/ntsb/DEN01FA135.md): Beech V-35A · Lusk, WY · Accident · 1 fatal · Field investigation · Final report · Aug 3, 2001 · N7182N · Destroyed
  > the pilot's inadequate visual lookout, which resulted in an inadvertent collision with transmission wires.
- [NTSB DEN00LA020](https://openairdocs.org/ntsb/DEN00LA020.md): Cessna 210D · Sheridan, WY · Accident · No injuries · Limited investigation · Final report · Nov 21, 1999 · N3928Y · Substantial damage
  > The partial failure of the engine driven hydraulic pump.
- [NTSB DEN99LA056](https://openairdocs.org/ntsb/DEN99LA056.md): Aero Commander 200D · Evanston, WY · Accident · No injuries · Limited investigation · Final report · Mar 13, 1999 · N49J · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB FTW98LA201](https://openairdocs.org/ntsb/FTW98LA201.md): Cessna 320D · Greybull, WY · Accident · No injuries · Limited investigation · Final report · May 1, 1998 · N3316Q · Substantial damage
  > Stress overload failure of the bellcrank assembly of the left landing gear.
- [NTSB FTW98LA176](https://openairdocs.org/ntsb/FTW98LA176.md): Cessna P206B · Riverton, WY · Accident · Serious injuries · Limited investigation · Final report · Apr 7, 1998 · N4728F · Destroyed
  > continued flight by the pilot into instrument meteorological conditions (IMC), and his failure to maintain sufficient altitude from terrain, while manuevering to reverse direction. Related factors were: the adverse weather conditions, mountainous terrain, and…
- [NTSB SEA96LA193](https://openairdocs.org/ntsb/SEA96LA193.md): Cessna A185E · Cody, WY · Accident · No injuries · Limited investigation · Final report · Aug 15, 1996 · N185K · Substantial damage
  > failure of the pilot to maintain directional control of the airplane and runway alignment during the takeoff roll. Factors relating to the accident were: the crosswind, and possible dragging of the right brake.
- [NTSB SEA95LA147](https://openairdocs.org/ntsb/SEA95LA147.md): Cessna A188B · Esterbrook, WY · Accident · No injuries · Limited investigation · Final report · Jul 11, 1995 · N70062 · Substantial damage
  > The pilot's failure to attain the proper touchdown point and airspeed for landing. Contributing to the accident were high density altitude, the short landing area, and the pilot's failure to initiate a go-around in time to allow recovery from the situation.
- [NTSB SEA95FA038](https://openairdocs.org/ntsb/SEA95FA038.md): Beech V35 · Moose, WY · Accident · 3 fatal · Field investigation · Final report · Jan 19, 1995 · N5603S · Substantial damage
  > The pilot's failure to fly the proper glidepath. A factor was the dark night light conditions.
- [NTSB SEA94LA089](https://openairdocs.org/ntsb/SEA94LA089.md): Beech 95-C55 · Gillette, WY · Accident · No injuries · Limited investigation · Final report · Mar 21, 1994 · N9415S · Substantial damage
  > Procedures/directives were not followed and partial failure of the landing gear selector switch. A factor to the accident was an inoperative gear warning system.
- [NTSB SEA92LA138](https://openairdocs.org/ntsb/SEA92LA138.md): Navion H · Gillette, WY · Accident · Minor injuries · Limited investigation · Final report · Jun 27, 1992 · N2550T · Substantial damage
  > An engine power loss due to the collapse of the induction air ducting, inadequate maintenance, and improper approval of the modification.
- [NTSB DEN87DTI01](https://openairdocs.org/ntsb/DEN87DTI01.md): Cessna A188B · Basin, WY · Accident · No injuries · Final report · Aug 22, 1987 · N72414 · Substantial damage
  > The plt was taking off on a private, 2300 ft, dirt, ag strip with a load of chemicals. The arpt elev was 4185 ft & the rprtd temp was 74 deg. The plt said the wind was calm when he began his takeoff roll, but about 3/4 of the way down the rwy, the acft…
- [NTSB DEN85FA015](https://openairdocs.org/ntsb/DEN85FA015.md): Cessna 414-8 · Cheyenne, WY · Accident · Serious injuries · Field investigation · Final report · Oct 20, 1984 · N1597T · Destroyed
  > The acft departed the airport in IFR conditions (snowing) & was observed staggering into the air. Shortly after takeoff the acft struck power lines & crashed into homes in a residential area. Investigation revealed that the acft had accumulated ice & in…
- [NTSB DEN83AA105](https://openairdocs.org/ntsb/DEN83AA105.md): Cessna 340 · Rock Springs, WY · Accident · 3 fatal · Final report · Apr 26, 1983 · N5415M · 2 aircraft · Destroyed
  > The aircrew of a Cessna 340, N5415M, were scheduled for an air taxi check ride with an inspector at jackson, WY, later in the afternoon. They had planned to takeoff from Rock Springs, WY, practice a few instrucment apchs at Rock Springs, then proceed to…
- [NTSB DEN82DA196](https://openairdocs.org/ntsb/DEN82DA196.md): Cessna U206F · Kemmerer, WY · Accident · No injuries · Final report · Sep 15, 1982 · N8317Q · Substantial damage
  > The aircraft lost power after takeoff in a large field. During the landing roll, the aircraft crossed a dirt road that crossed the field, the nose gear failed and the aircraft nosed over. A section of aluminum from the air induction box was missing. Aluminum…
- [NTSB MKC80FA054](https://openairdocs.org/ntsb/MKC80FA054.md): Beech V35 · Jackson, WY · Accident · 4 fatal · Closed · Sep 8, 1980 · N21MD · Destroyed
- [NTSB DEN80FTC18](https://openairdocs.org/ntsb/DEN80FTC18.md): Cessna 210L · Mountain View, WY · Accident · Minor injuries · Closed · Jun 13, 1980 · N2280S · Substantial damage
- [NTSB DEN80FA033](https://openairdocs.org/ntsb/DEN80FA033.md): Beech 58 · Casper, WY · Accident · No injuries · Closed · May 16, 1980 · N25734 · Substantial damage
- [NTSB DEN81FA066](https://openairdocs.org/ntsb/DEN81FA066.md): Beech C33 · Dubois, WY · Accident · 4 fatal · Closed · Oct 22, 1979 · N60234 · Destroyed
- [NTSB DEN79DTC26](https://openairdocs.org/ntsb/DEN79DTC26.md): Cessna U206A · Wheatland, WY · Accident · No injuries · Closed · Aug 31, 1979 · N71900 · Substantial damage
- [NTSB DEN79FA023](https://openairdocs.org/ntsb/DEN79FA023.md): Cessna 206 · Moose, WY · Accident · 4 fatal · Closed · Feb 24, 1979 · N114CK · Destroyed
- [NTSB DEN79FTC01](https://openairdocs.org/ntsb/DEN79FTC01.md): Cessna 310P · Pinedale, WY · Accident · No injuries · Closed · Oct 26, 1978 · N5752M · Substantial damage
- [NTSB DEN77DTC05](https://openairdocs.org/ntsb/DEN77DTC05.md): Cessna U206 · Cheyenne, WY · Accident · No injuries · Closed · Feb 14, 1977 · N8498Q · Substantial damage
- [NTSB DEN76FTC30](https://openairdocs.org/ntsb/DEN76FTC30.md): Cessna 210K · Lander, WY · Accident · Minor injuries · Closed · Apr 8, 1976 · N8250M · Substantial damage
- [NTSB DEN76FTC17](https://openairdocs.org/ntsb/DEN76FTC17.md): Beech 95-C55 · Four Corners, WY · Accident · Serious injuries · Closed · Oct 8, 1975 · N2787T · Substantial damage
- [NTSB DEN75FTC20](https://openairdocs.org/ntsb/DEN75FTC20.md): Bellanca 17-30 · Sinclair, WY · Accident · No injuries · Closed · Apr 30, 1975 · N7394V · Substantial damage
- [NTSB DEN73DTC25](https://openairdocs.org/ntsb/DEN73DTC25.md): Cessna T210J · Riverton, WY · Accident · No injuries · Closed · May 9, 1973 · N2280R · Substantial damage
- [NTSB DEN72DTC20](https://openairdocs.org/ntsb/DEN72DTC20.md): Cessna U206 · Rawlins, WY · Accident · No injuries · Closed · Mar 6, 1972 · N5210U · Substantial damage
- [NTSB DEN71DXA17](https://openairdocs.org/ntsb/DEN71DXA17.md): Cessna 206 · Gillette, WY · Accident · No injuries · Closed · Feb 10, 1971 · N5210U · Substantial damage
- [NTSB DEN70D0098](https://openairdocs.org/ntsb/DEN70D0098.md): Beech S35 · Rawlins, WY · Accident · No injuries · Closed · Sep 3, 1969 · N5713K · Substantial damage
- [NTSB DEN69D0029](https://openairdocs.org/ntsb/DEN69D0029.md): Beech V35 · Buffalo, WY · Accident · No injuries · Closed · Jun 19, 1968 · N118V · Substantial damage
- [NTSB DEN68D0177](https://openairdocs.org/ntsb/DEN68D0177.md): Cessna 210 · Kemmerer, WY · Accident · No injuries · Closed · Dec 27, 1967 · N3957Y · Substantial damage
- [NTSB DEN67F0133](https://openairdocs.org/ntsb/DEN67F0133.md): Cessna 210 · Mcfadden, WY · Accident · No injuries · Closed · Sep 16, 1966 · N3938Y · Substantial damage
- [NTSB DEN65F0011](https://openairdocs.org/ntsb/DEN65F0011.md): Beechcraft S-35 · Cheyenne, WY · Accident · No injuries · Closed · Feb 4, 1965 · N5877S · Substantial damage

## 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" = 'WY' 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=WY

---
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.
