# NTSB investigations: Cessna 170B, MT

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 WPR21LA226](https://openairdocs.org/ntsb/WPR21LA226.md): Cessna 170B · Miles City, MT · Accident · No injuries · Class 4 · Limited · Final report · Jun 11, 2021 · N2218B · Substantial damage
  > The pilot’s failure to maintain directional control during takeoff which resulted in a ground loop and collision with terrain.
- [NTSB WPR20CA053](https://openairdocs.org/ntsb/WPR20CA053.md): Cessna 170 · Missoula, MT · Accident · No injuries · Data collection · Final report · Dec 28, 2019 · N4476B · Substantial damage
  > The pilot receiving instruction's failure to maintain directional control during the takeoff roll, which resulted in a runway excursion and ground-loop, and the flight instructor’s failure to adequately monitor the pilot.
- [NTSB GAA16CA492](https://openairdocs.org/ntsb/GAA16CA492.md): Cessna 170 · Sidney, MT · Accident · No injuries · Data collection · Final report · Sep 10, 2016 · N8335A · Substantial damage
  > The student pilot’s improper landing flare, which resulted in a bounced landing, and the flight instructor’s inability to recover the airplane, which resulted in a runway excursion.
- [NTSB WPR15FA049](https://openairdocs.org/ntsb/WPR15FA049.md): Cessna 170B · Alzada, MT · Accident · 1 fatal · Field investigation · Final report · Nov 28, 2014 · N3292A · Substantial damage
  > The pilot's failure to maintain airplane control while maneuvering, which resulted in a collision with mountainous terrain.
- [NTSB WPR13CA117](https://openairdocs.org/ntsb/WPR13CA117.md): Cessna 170B · Sunburst, MT · Accident · No injuries · Data collection · Final report · Feb 6, 2013 · N2619D · Substantial damage
  > The pilot's failure to compensate for the strong, gusting wind conditions, which resulted in a loss of airplane control during takeoff.
- [NTSB SEA07LA020](https://openairdocs.org/ntsb/SEA07LA020.md): Cessna 170B · Billings, MT · Accident · No injuries · Limited investigation · Final report · Nov 18, 2006 · N2619D · Substantial damage
  > The flight instructor's inadequate remedial action to maintain directional control, which resulted in a ground loop/swerve during takeoff roll. A factor was the failure of the pilot who was receiving instruction to maintain directional control.
- [NTSB SEA06CA106](https://openairdocs.org/ntsb/SEA06CA106.md): Cessna 170B · West Glacier, MT · Accident · No injuries · Data collection · Final report · May 21, 2006 · N3477C · Substantial damage
  > The pilot's failure to attain sufficient airspeed for flight, his attempt to abort the takeoff, and the airplane's subsequent departure off the end of the runway. Contributing factors were the impacted fence and vegetation, and his total lack of experience in…
- [NTSB SEA06CA073](https://openairdocs.org/ntsb/SEA06CA073.md): Cessna 170B · Havre, MT · Accident · No injuries · Data collection · Final report · Apr 10, 2006 · N2831C · Substantial damage
  > The pilot's improper starting procedures in attempting to hand-prop the airplane's engine. Contributing factors were the discharged battery, the failure of the right parking brake and the hangar which the aircraft collided with.
- [NTSB SEA05CA135](https://openairdocs.org/ntsb/SEA05CA135.md): Cessna 170B · Laurel, MT · Accident · No injuries · Data collection · Final report · Jun 28, 2005 · N2619D · Substantial damage
  > The flight instructor's failure to maintain directional control during the landing roll, which resulted in an inadvertent ground loop. A contributing factor was the flight instructor's diverted attention to talking with the student.
- [NTSB SEA03CA155](https://openairdocs.org/ntsb/SEA03CA155.md): Cessna 170B · Schafer, MT · Accident · Minor injuries · Data collection · Final report · Jul 27, 2003 · N1979C · Substantial damage
  > The pilot's delayed remedial action during the takeoff roll. Factors include wet terrain, a fence and an embankment located at the end of the runway.
- [NTSB SEA97LA019](https://openairdocs.org/ntsb/SEA97LA019.md): Cessna 170B · Utica, MT · Accident · No injuries · Limited investigation · Final report · Oct 25, 1996 · N2419D · Substantial damage
  > The pilot's improper use of the brakes, while landing a tailwheel aircraft in crosswind conditions. The crosswind was a related factor.
- [NTSB SEA96LA153](https://openairdocs.org/ntsb/SEA96LA153.md): Cessna 170B · Lewistown, MT · Accident · No injuries · Limited investigation · Final report · Jul 12, 1996 · N3156A · Substantial damage
  > the pilot's inadequate compensation for the changing wind conditions, and his failure to maintain directional control, which resulted in an inadvertent ground swerve. The sudden windshift was a related factor.
- [NTSB DEN88LA031](https://openairdocs.org/ntsb/DEN88LA031.md): Cessna 170B · Conner, MT · Accident · Serious injuries · Limited investigation · Final report · Nov 27, 1987 · N2926D · Substantial damage
  > On takeoff from a private, grass strip the pilot stated the engine began to lose power at approximately 20 to 30 feet AGL. A ravine was ahead and he attempted to stretch his glide to the FAR side of the ravine; however, the aircraft stalled and crashed into…
- [NTSB DEN87LA125](https://openairdocs.org/ntsb/DEN87LA125.md): Cessna 170B · Big Sky, MT · Accident · No injuries · Limited investigation · Final report · May 16, 1987 · N1979C · Substantial damage
  > The private plt was flying cross country in deteriorating weather conditions. Fog was forecast and light rain was in progress. The flt encountered less than VFR conditions in a mountainous area and reversed course. Weather was below VFR on the reverse course…
- [NTSB DEN85LA192](https://openairdocs.org/ntsb/DEN85LA192.md): Cessna 170B · Missoula, MT · Accident · No injuries · Limited investigation · Final report · Jul 17, 1985 · N8252A · Substantial damage
  > The pilot stated that he did not use proper technique and did not maintain directional control while landing in a brisk and direct crosswind. The airplane was substantially damaged in the hard landing that was followed by a ground loop.
- [NTSB DEN85LA181](https://openairdocs.org/ntsb/DEN85LA181.md): Cessna 170B · Swan Lake, MT · Accident · No injuries · Limited investigation · Final report · Jul 6, 1985 · N2432D · Substantial damage
  > The plt said that prior to departure there was an estimated 14 gals of fuel on board. After aprx 30 minutes of flight the eng lost all pwr and a forced landing was accomplished in a mountainous creek bed. During the landing roll the acft struck a feeled tree…
- [NTSB DEN84LA265](https://openairdocs.org/ntsb/DEN84LA265.md): Cessna 170B · Poplar, MT · Accident · Minor injuries · Limited investigation · Final report · Aug 24, 1984 · N7681 · Substantial damage
  > Plt stated, 'river current 12-15 mph, landing area 100 yards wide, curving to right, wind gusting to 20 knots from right rear quarter. Approach was fast, and upon landing, aircraft remained on step, unresponsive to aileron and rudder for turning. Quartering…
- [NTSB DEN82DA060](https://openairdocs.org/ntsb/DEN82DA060.md): Cessna 170B · Worden, MT · Accident · No injuries · Final report · Apr 15, 1982 · N3415D · Substantial damage
  > The pilot reported that the carburetor heat control became inoperative while on a cross-country flight. The weather conditions were conducive to the formation of carburetor ice. A decision was made to land in an alfalfa field while the engine was still…
- [NTSB SEA79DTI20](https://openairdocs.org/ntsb/SEA79DTI20.md): Cessna 170B · Cut Bank, MT · Accident · No injuries · Closed · Jul 18, 1979 · N8051A · Substantial damage
- [NTSB SEA78FTA19](https://openairdocs.org/ntsb/SEA78FTA19.md): Cessna 170B · Broadus, MT · Accident · No injuries · Closed · Aug 26, 1978 · N4657C · Substantial damage
- [NTSB SEA77DTI04](https://openairdocs.org/ntsb/SEA77DTI04.md): Cessna 170B · W.Sulphur Spgs, MT · Accident · No injuries · Closed · Dec 8, 1976 · N2288D · Substantial damage
- [NTSB SEA75DTI17](https://openairdocs.org/ntsb/SEA75DTI17.md): Cessna 170B · Missoula, MT · Accident · No injuries · Closed · Jan 18, 1975 · N8252A · Substantial damage
- [NTSB SEA74DTA09](https://openairdocs.org/ntsb/SEA74DTA09.md): Cessna 170B · Glasgow, MT · Accident · No injuries · Closed · Sep 24, 1973 · N3469C · Substantial damage
- [NTSB SEA72FTA09](https://openairdocs.org/ntsb/SEA72FTA09.md): Cessna 170B · Billings, MT · Accident · No injuries · Closed · Oct 23, 1971 · N8234A · Substantial damage
- [NTSB SEA71FTA20](https://openairdocs.org/ntsb/SEA71FTA20.md): Cessna 170B · Brusett, MT · Accident · No injuries · Closed · Apr 27, 1971 · N3479C · Substantial damage
- [NTSB SEA70DDA04](https://openairdocs.org/ntsb/SEA70DDA04.md): Cessna 170B · Brusett, MT · Accident · No injuries · Closed · Mar 27, 1970 · N2596D · Substantial damage
- [NTSB SEA69D0252](https://openairdocs.org/ntsb/SEA69D0252.md): Cessna 170B · Mosby, MT · Accident · No injuries · Closed · Feb 3, 1969 · N3162B · Substantial damage
- [NTSB SEA69D0170](https://openairdocs.org/ntsb/SEA69D0170.md): Cessna 170B · Belgrade, MT · Accident · No injuries · Closed · Dec 15, 1968 · N3185B · Substantial damage
- [NTSB UNK65X0691](https://openairdocs.org/ntsb/UNK65X0691.md): Cessna 170B · Roberts, MT · Accident · 1 fatal · Closed · Nov 13, 1964 · N2561D · Destroyed
- [NTSB UNK64X3053](https://openairdocs.org/ntsb/UNK64X3053.md): Cessna 170B · Billings, MT · Accident · No injuries · Closed · Jul 26, 1964 · N8102A · Substantial damage
- [NTSB UNK64X2049](https://openairdocs.org/ntsb/UNK64X2049.md): Cessna 170B · Poplar, MT · Accident · No injuries · Closed · May 31, 1964 · N4585C · Substantial damage
- [NTSB UNK64X0400](https://openairdocs.org/ntsb/UNK64X0400.md): Cessna 170B · Browning, MT · Accident · No injuries · Closed · Jan 29, 1964 · N4527C · Destroyed

## 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" = 'MT' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('2072306', '2072307'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=2072306&state=MT

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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.