# NTSB investigations: Continental IO-520 series

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 45 of 96 · 4,751 cases

## Cases, newest first

- [NTSB ANC90LA090](https://openairdocs.org/ntsb/ANC90LA090.md): Cessna 206U · Taku, AK · Accident · No injuries · Limited investigation · Final report · Jun 17, 1990 · N9735Z · 2 aircraft · Minor damage
  > Failure of the pilot of N9735Z (C-206U) to see and avoid N756EJ (C-206G), and failure of company management to establish adequate separation procedures.
- [NTSB DEN90LA134](https://openairdocs.org/ntsb/DEN90LA134.md): Cessna A185F · Erie, CO · Accident · No injuries · Limited investigation · Final report · Jun 13, 1990 · N8389Q · Substantial damage
  > Failure of the pilot receiving instruction to choose suitable terrain for the landing. Contributing to the accident was the cfi's inadequate supervision.
- [NTSB CHI90LA154](https://openairdocs.org/ntsb/CHI90LA154.md): Cessna 207 · Toledo, OH · Accident · No injuries · Limited investigation · Final report · Jun 7, 1990 · N73067 · Substantial damage
  > The pilot-in-command's poor preflight planning and his failure to attain proper climb rate during initial climb after takeoff.
- [NTSB DEN90LA125](https://openairdocs.org/ntsb/DEN90LA125.md): Cessna 188A · Martin, SD · Accident · No injuries · Limited investigation · Final report · Jun 4, 1990 · N78516 · Substantial damage
  > The on-ground loss of control during the takeoff ground run. Contributing to this accident was the pilot's failure to use optimum takeoff flaps for the runway conditions that existed, and the soft wet runway surface.
- [NTSB NYC90LA123](https://openairdocs.org/ntsb/NYC90LA123.md): Cessna 401 · Plymouth, MA · Accident · No injuries · Limited investigation · Final report · May 31, 1990 · N401FC · Substantial damage
  > Improper maintenance and inspection by maintenance personnel of the left gear torque link attachment.
- [NTSB ANC90LA077](https://openairdocs.org/ntsb/ANC90LA077.md): Cessna 185 · Northway, AK · Accident · No injuries · Limited investigation · Final report · May 28, 1990 · N520VA · Substantial damage
  > The pilot lost control of the airplane during the post-landing taxi.
- [NTSB ANC90LA076](https://openairdocs.org/ntsb/ANC90LA076.md): Cessna 185 · Uganik Bay, AK · Accident · No injuries · Limited investigation · Final report · May 24, 1990 · N1095F · Substantial damage
  > The pilot's improper compensation for wind conditions. Factors contributing to the accident were the downdrafts and gusty winds.
- [NTSB LAX90LA184](https://openairdocs.org/ntsb/LAX90LA184.md): Cessna 185F · Terra Bella, CA · Accident · Minor injuries · Limited investigation · Final report · May 20, 1990 · N1211F · Substantial damage
  > The pilot's preflight planning and preparation was poor. Contributing to this accident was the high vegetation field.
- [NTSB NYC90LA120](https://openairdocs.org/ntsb/NYC90LA120.md): Navion H · Readington, NJ · Accident · Minor injuries · Limited investigation · Final report · May 19, 1990 · N2502T · Substantial damage
  > The failure of the pilot to maintain minimum flying airspeed which led to an inadvertent stall/mush. Factors related to the accident were the pilot's decision to land with a tailwind, and his failure to monitor his airspeed on final.
- [NTSB ATL90FA111](https://openairdocs.org/ntsb/ATL90FA111.md): Cessna P206 · Liberty, NC · Accident · 1 fatal · Field investigation · Final report · May 9, 1990 · N220P · Substantial damage
  > A loss of engine power due to improper repairs to, and inadequate inspection of, the induction air box. The night light condition was a contributing factor.
- [NTSB FTW90DPA02](https://openairdocs.org/ntsb/FTW90DPA02.md): Cessna A188B · Perry, TX · Accident · No injuries · Final report · Apr 30, 1990 · N21620 · Substantial damage
  > The total loss of engine power as a result of water contamination of the fuel supply. A factor was the unsuitable terrain in which the pilot had to make the forced landing.
- [NTSB BFO90IA039](https://openairdocs.org/ntsb/BFO90IA039.md): Bellanca 17-30 · Davis, WV · Incident · No injuries · Incident investigation · Final report · Apr 27, 1990 · N4802V · No damage
  > The improper installation of the connecting rod bearings on the number one cylinder.
- [NTSB CHI90LA116](https://openairdocs.org/ntsb/CHI90LA116.md): Beech E 55 · New Richmond, WI · Accident · No injuries · Limited investigation · Final report · Apr 22, 1990 · N17577 · Substantial damage
  > Pilot's improper use of the landing gear mechanism during the landing roll, which resulted in the partial collapse of the landing gear.
- [NTSB CHI90LA115](https://openairdocs.org/ntsb/CHI90LA115.md): Beech F33A · Milwaukee, WI · Accident · Minor injuries · Limited investigation · Final report · Apr 20, 1990 · N179DD · Substantial damage
  > The utilization of improper procedures on the part of the pilot in command by attempting to execute a coupled approach outside the parameters of the autopilot.
- [NTSB LAX90LA147](https://openairdocs.org/ntsb/LAX90LA147.md): Beech F-33A · Goodyear, AZ · Accident · No injuries · Limited investigation · Final report · Apr 17, 1990 · N6508V · Substantial damage
  > The pilot's failure to follow directives and his misjudgement of distance. Contributing to the accident was the airport management's failure to ensure that the building did not pose a hazard.
- [NTSB ANC90LA058](https://openairdocs.org/ntsb/ANC90LA058.md): Cessna 185E · Bethel, AK · Accident · No injuries · Limited investigation · Final report · Apr 16, 1990 · N2214T · Substantial damage
  > Improper planning/decision by the pilot, which resulted in fuel exhaustion, due to an inadeqaute supply of fuel.
- [NTSB LAX90LA146](https://openairdocs.org/ntsb/LAX90LA146.md): Beech F33A · Yuba City, CA · Accident · No injuries · Limited investigation · Final report · Apr 12, 1990 · N4497S · Substantial damage
  > A dog suddenly running onto the active runway in front of the aircraft resulted in a collision and substantial airframe damage.
- [NTSB DEN90FA089](https://openairdocs.org/ntsb/DEN90FA089.md): Cessna 210E · Elbert, CO · Accident · 1 fatal · Field investigation · Final report · Apr 9, 1990 · N4912U · Destroyed
  > The pilot's initiation of flight into known adverse weather, the rapid ice accumulation on the airframe, and an inadvertent stall-mush, resulting in an uncontrolled descent into terrain.
- [NTSB ANC90FA040](https://openairdocs.org/ntsb/ANC90FA040.md): Cessna A185E · Alexander Lake, AK · Accident · No injuries · Field investigation · Final report · Mar 20, 1990 · N3386L · Substantial damage
  > Loss of engine power for an unknown reason. Factors related to the accident were: darkness and trees in the emergency landing area.
- [NTSB ANC90LA035](https://openairdocs.org/ntsb/ANC90LA035.md): Cessna 207 · Takotna, AK · Accident · No injuries · Limited investigation · Final report · Feb 27, 1990 · N73128 · Substantial damage
  > Improper planning/decision by the pilot. Factors related to the accident were: the pilot's failure to attain the proper touchdown point for landing, his excessive airspeed, his failure to go around while he still had sufficient airspeed, the snow covered…
- [NTSB CHI90LA082](https://openairdocs.org/ntsb/CHI90LA082.md): Cessna T310R · Wheeling, IL · Accident · No injuries · Limited investigation · Final report · Feb 15, 1990 · N6186X · Substantial damage
  > Pilot's inability to maintain directional during the landing phase of flight. The slippery, snow covered runway, and a twelve knot direct crosswind contributed to the accident.
- [NTSB ANC90LA031](https://openairdocs.org/ntsb/ANC90LA031.md): Cessna 185 · Willow, AK · Accident · No injuries · Limited investigation · Final report · Jan 21, 1990 · N1802R · Substantial damage
  > Selection of an unsuitable landing area (unsuitable terrain) by the pilot. Factors related to the accident were: deep snow on the runway and failure of the flight service station (fss) specialist to inform the pilot that the runway was closed to wheel…
- [NTSB NYC90FA054](https://openairdocs.org/ntsb/NYC90FA054.md): Cessna 310R · Burlington, VT · Accident · 3 fatal · Field investigation · Final report · Jan 16, 1990 · N5115J · Destroyed
  > For an unknown reason, the aircraft entered a descent and crashed in a lake.
- [NTSB FTW90LA053](https://openairdocs.org/ntsb/FTW90LA053.md): Cessna A185F · Houston, TX · Accident · No injuries · Limited investigation · Final report · Jan 14, 1990 · N8785Z · Substantial damage
  > Inadequate compensation for wind conditions by the pilot, and his failure to maintain directional control. The unfavorable wind was a related factor.
- [NTSB CHI90LA054](https://openairdocs.org/ntsb/CHI90LA054.md): Beech V35B · North Canton, OH · Accident · No injuries · Limited investigation · Final report · Dec 27, 1989 · N2105L · Substantial damage
  > Continued flight by the pilot into known adverse weather conditions, and his delay in diverting to an alternate airport, which resulted in accumulation of airframe icing. Factors related to the accident were: the adverse weather and runway/terrain conditions.
- [NTSB CHI90LA042](https://openairdocs.org/ntsb/CHI90LA042.md): Beech V35 · Cable, WI · Accident · No injuries · Limited investigation · Final report · Dec 9, 1989 · N7988M · Substantial damage
  > The pilot's failure to adequately compensate for crosswind conditions. Contributing to the accident was the gusty, crosswind conditions which existed.
- [NTSB SEA90LA024](https://openairdocs.org/ntsb/SEA90LA024.md): Cessna A-185-F · Seattle, WA · Accident · No injuries · Limited investigation · Final report · Nov 29, 1989 · N1920Q · Substantial damage
  > The pilot did not maintain directional control of the airplane during the landing roll.
- [NTSB FTW90DRA01](https://openairdocs.org/ntsb/FTW90DRA01.md): Cessna A188B · Muldoon, TX · Accident · Minor injuries · Final report · Nov 27, 1989 · N4090J · Substantial damage
  > A total power loss due to water contamination in the fuel. A factor was the pilot's inadequate preflight inspection.
- [NTSB CHI90LA039](https://openairdocs.org/ntsb/CHI90LA039.md): Beech V35B · Momence, IL · Accident · No injuries · Limited investigation · Final report · Nov 18, 1989 · N1809W · Substantial damage
  > Gradual total failure of the powerplant due to oil exhaustion during a night cross country operation, and the subsequent gear-up forced landing on a frozen field.
- [NTSB DEN90LA018](https://openairdocs.org/ntsb/DEN90LA018.md): Cessna U206B · Billings, MT · Accident · No injuries · Limited investigation · Final report · Nov 7, 1989 · N3481L · Substantial damage
  > Improper planning/decision by the pilot while taxiing during unfavorable wind conditions.
- [NTSB ANC90LA012](https://openairdocs.org/ntsb/ANC90LA012.md): Cessna 207 · Quinhagak, AK · Accident · No injuries · Limited investigation · Final report · Nov 7, 1989 · N6255H · Substantial damage
  > Fatigue failure of the right rudder bar. A factor related to the accident was: rough/uneven terrain beside the runway.
- [NTSB ANC90FA010](https://openairdocs.org/ntsb/ANC90FA010.md): Cessna A185E · Anchorage, AK · Accident · No injuries · Field investigation · Final report · Nov 7, 1989 · N1592F · Substantial damage
  > The throttle control linkage became disconnected on the first flight after an annual inspection due to improper maintenance. Darkness and high vegetation were contributing factors.
- [NTSB SEA90LA026](https://openairdocs.org/ntsb/SEA90LA026.md): Bellanca 17-30 · Newberg, OR · Accident · No injuries · Limited investigation · Final report · Oct 30, 1989 · N4133B · Substantial damage
  > Failure of the pilot to maintain runway alignment. The birds & debris (hidding obstructions) were related factors.
- [NTSB FTW90FA015](https://openairdocs.org/ntsb/FTW90FA015.md): Beech 58 · San Antonio, TX · Accident · No injuries · Field investigation · Final report · Oct 24, 1989 · N950JP · Substantial damage
  > A fuel tank leak, arcing from the exterior lighting system, and failure of company/maintenance personnel to comply with an airworthiness directive (AD).
- [NTSB CHI90LA015](https://openairdocs.org/ntsb/CHI90LA015.md): Cessna 207 · Dodgeville, WI · Accident · No injuries · Limited investigation · Final report · Oct 19, 1989 · N1517U · Substantial damage
  > Pilot's improper planning/decision and his delay in deciding to go around. Factors related to the accident were: the unfavorable wind conditions, the pilot's visual perception on the crowned runway, his misjudgement of speed and remaining distance on the…
- [NTSB NYC90LA010](https://openairdocs.org/ntsb/NYC90LA010.md): Beech 58 · Philadelphia, PA · Accident · No injuries · Limited investigation · Final report · Oct 11, 1989 · N333TQ · 2 aircraft · Substantial damage
  > The failure of the pilot of N333TQ to taxi at a speed that would allow him to stop under existing conditions of visibility and taxiway conditions.
- [NTSB ATL90DLG01](https://openairdocs.org/ntsb/ATL90DLG01.md): Cessna 188B · Hartsville, SC · Accident · 1 fatal · Final report · Oct 5, 1989 · N21897 · Substantial damage
  > The failure of the pilot to maintain adequate in-flight clearance from obstacles.
- [NTSB MIA90LA002](https://openairdocs.org/ntsb/MIA90LA002.md): Cessna A188B · Wauchula, FL · Accident · No injuries · Limited investigation · Final report · Oct 4, 1989 · N21752 · Substantial damage
  > Fuel starvation, improper planning/decision by the pilot, and his failure to attained the emergency procedure. Factors related to the accident were: the low fuel level, and improper planning/decision by the pilot.
- [NTSB MKC90LA004](https://openairdocs.org/ntsb/MKC90LA004.md): Bellanca 17-30 · Gainesville, MO · Accident · Serious injuries · Limited investigation · Final report · Oct 3, 1989 · N6569V · Substantial damage
  > The pilot's failure to compensate for wind conditions and to maintain runway alignment during the landing approach. Contributing to the accident was the turbulent conditions.
- [NTSB ATL90LA002](https://openairdocs.org/ntsb/ATL90LA002.md): Beech V35B · Colquitt, GA · Accident · No injuries · Limited investigation · Final report · Oct 1, 1989 · N4277A · Destroyed
  > The pilot's failure to obtain current enroute weather information for his destination resulting in his flying VMC into IMC conditions which resulted in his collision with powerlines while making a precautionary landing on a road.
- [NTSB ANC89LA178](https://openairdocs.org/ntsb/ANC89LA178.md): Cessna 185 · Shotgun Hills, AK · Accident · Serious injuries · Limited investigation · Final report · Sep 30, 1989 · N9706H · Substantial damage
  > The pilot's failure to adequately evaluate the existing weather conditions and to maintain control of the aircraft. Contributing to the accident was the pilot's overconfidence in both personal ability and the ability of the aircraft along with the downdraft…
- [NTSB ANC89LA176](https://openairdocs.org/ntsb/ANC89LA176.md): Cessna 185 · Trading Bay, AK · Accident · No injuries · Limited investigation · Final report · Sep 29, 1989 · N64399 · Substantial damage
  > Pilot in commands failure to perform an adequate visual approach resulting in collision with a tree.
- [NTSB CHI89LA195](https://openairdocs.org/ntsb/CHI89LA195.md): Beech 36 · Princeton, IL · Accident · No injuries · Limited investigation · Final report · Sep 28, 1989 · N7818R · Substantial damage
  > The pilot had excessive airspeed, misjudged the landing distance, and did not go around. The high obstructions (trees),wet runway, ditch, and uneven terrain (roadway) were contributing factors.
- [NTSB ANC89LA170](https://openairdocs.org/ntsb/ANC89LA170.md): Cessna 185 · Mulchatna River, AK · Accident · No injuries · Limited investigation · Final report · Sep 20, 1989 · N4443R · Substantial damage
  > Improper planning/decision by the pilot, which resulted in fuel exhaustion due to an inadequate supply of fuel. Factors related to the accident were: loss of fuel that had siphoned (leaked) from the aircraft before takeoff and tree(s) overhanging the fast…
- [NTSB ANC89LA167](https://openairdocs.org/ntsb/ANC89LA167.md): Cessna A185F · Nenana River, AK · Accident · Serious injuries · Limited investigation · Final report · Sep 20, 1989 · N79SC · Substantial damage
  > Improper planning/decision by the pilot. A factor related to the accident was: the adverse weather condition.
- [NTSB ANC89LA165](https://openairdocs.org/ntsb/ANC89LA165.md): Cessna U206 · Nondalton, AK · Accident · No injuries · Limited investigation · Final report · Sep 15, 1989 · N756NG · Substantial damage
  > Failure of the pilot to attain the proper touchdown point for the landing, his excessive airspeed, and his misjudgement of runway distance remaining. Factors related to the accident were: loose/wet gravel on the runway and the location of the parked aircraft…
- [NTSB MIA89LA232](https://openairdocs.org/ntsb/MIA89LA232.md): Cessna A188B · Edwards, MS · Accident · No injuries · Limited investigation · Final report · Aug 25, 1989 · N53327 · Substantial damage
  > Inadequate preflight by the pilot, which resulted in fuel exhaustion, due to an inadequate supply of fuel. Rough terrain in the emergency landing area was a related factor.
- [NTSB ATL89LA201](https://openairdocs.org/ntsb/ATL89LA201.md): Beech A-36 · Charleston, SC · Accident · No injuries · Limited investigation · Final report · Aug 24, 1989 · N4534S · Substantial damage
  > The pilot's failure to maintain clearance from other parked aircraft while taxiing.
- [NTSB LAX89LA285](https://openairdocs.org/ntsb/LAX89LA285.md): Cessna 185F · Fresno, CA · Accident · No injuries · Limited investigation · Final report · Aug 23, 1989 · N1562H · Substantial damage
  > Failure of the pilot to maintain directional control of the aircraft.
- [NTSB MKC89LA187](https://openairdocs.org/ntsb/MKC89LA187.md): Beech V35B · Concord, AR · Accident · No injuries · Limited investigation · Final report · Aug 18, 1989 · N699T · Substantial damage
  > Improper installation of the alternator wiring harness by the pilot/owner which resulted in chafed wiring and a subsequent electrical fire. The uneven terrain was a contributing factor.

Next page: https://openairdocs.org/ntsb.md?engine=17032&page=46

## 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'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=17032&page=45

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