# NTSB investigations: Continental C90 series, 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 WPR13CA412](https://openairdocs.org/ntsb/WPR13CA412.md): Piper PA 11 · Bozeman, MT · Accident · Minor injuries · Data collection · Final report · Sep 16, 2013 · N4988M · Substantial damage
  > The pilot's failure to maintain aircraft control and inadequate compensation for the high gusty wind conditions during taxi.
- [NTSB SEA05LA176](https://openairdocs.org/ntsb/SEA05LA176.md): Alon A-2A · Helena, MT · Accident · Minor injuries · Limited investigation · Final report · Aug 20, 2005 · N5467F · Substantial damage
  > The loss of engine power for undetermined reasons, which resulted in a forced landing and nose over. A factor contributing to the accident was the ground bordering the runway pavement.
- [NTSB SEA03LA111](https://openairdocs.org/ntsb/SEA03LA111.md): Piper PA-11 · Alzada, MT · Accident · No injuries · Limited investigation · Final report · Jun 21, 2003 · N4565M · Destroyed
  > The student pilot's failure to maintain adequate flying airspeed in a turn while maneuvering close to the ground resulting in a stall condition. A contributing factor was the turbulent wind conditions.
- [NTSB SEA00LA126](https://openairdocs.org/ntsb/SEA00LA126.md): Cessna 120 · Toston, MT · Accident · No injuries · Limited investigation · Final report · Jul 3, 2000 · N2146N · Substantial damage
  > The pilot's failure to maintain sufficient altitude to avoid contact with the ground. Contributing factors were the downdraft conditions and the fence post.
- [NTSB SEA00LA076](https://openairdocs.org/ntsb/SEA00LA076.md): Cessna 140 · Red Lodge, MT · Accident · No injuries · Limited investigation · Final report · Apr 21, 2000 · N3579V · Substantial damage
  > A high density altitude and inadequate preflight planning/preparation. Not attaining a proper climb rate, not maintaining a proper runway alignment, and gusting wind conditions were factors.
- [NTSB SEA98LA057](https://openairdocs.org/ntsb/SEA98LA057.md): Aeronca 7-EC · Glendive, MT · Accident · No injuries · Limited investigation · Final report · Apr 1, 1998 · N4382C · Substantial damage
  > The pilot's delayed remedial action and his inadvertent entry into a ground loop.
- [NTSB SEA96LA203](https://openairdocs.org/ntsb/SEA96LA203.md): Forney F-1 · Bozeman, MT · Accident · No injuries · Limited investigation · Final report · Aug 25, 1996 · N7551C · Substantial damage
  > the pilot's failure to adequately service the engine with oil before flight, which resulted in a loss of oil pressure and a subsequent forced landing. The high vegetation and embankment at the forced landing site were related factors.
- [NTSB SEA91LA123](https://openairdocs.org/ntsb/SEA91LA123.md): Aeronca 7BCM · St. Xavier, MT · Accident · Serious injuries · Limited investigation · Final report · Jun 2, 1991 · N10527 · Destroyed
  > The pilot's improper use of the fuel system, and the overfilling of the fuel tank. Contributing to the accident was: aerobatics performed, the pilot's inattention and the design of the fuel system.
- [NTSB SEA91LA043](https://openairdocs.org/ntsb/SEA91LA043.md): Piper PA-18 · Wolf Point, MT · Accident · No injuries · Limited investigation · Final report · Jan 12, 1991 · N2787P · Substantial damage
  > The inadequate preflight planning and preparation by the pilot in command, and his selection of unsuitable terrain for takeoff. A factor relating to the accident was the snowdrifts in the takeoff area.
- [NTSB DEN89LA049](https://openairdocs.org/ntsb/DEN89LA049.md): Piper PA-11 · Winnett, MT · Accident · No injuries · Limited investigation · Final report · Dec 23, 1988 · N5570H · Substantial damage
  > The pilot was taking off from a farm strip with a 10 kt head wind. The plt said the sun was shining at the time of the acdt but there had been snow showers in the area. He said the liftoff was normal but at about 15 to 18 ft AGL the acft stalled and crashed.…
- [NTSB SEA77FTA23](https://openairdocs.org/ntsb/SEA77FTA23.md): Bellanca 7CE · Baker, MT · Accident · No injuries · Closed · Aug 5, 1977 · N7525E · Substantial damage
- [NTSB SEA77FTA07](https://openairdocs.org/ntsb/SEA77FTA07.md): Piper PA-18 · Miles City, MT · Accident · No injuries · Closed · Jan 17, 1977 · N2989Z · Substantial damage
- [NTSB SEA77FTA06](https://openairdocs.org/ntsb/SEA77FTA06.md): Piper PA-18 · Glasgow, MT · Accident · No injuries · Closed · Jan 3, 1977 · N5425H · Substantial damage
- [NTSB SEA76FTA16](https://openairdocs.org/ntsb/SEA76FTA16.md): Piper PA-11 · Ashland, MT · Accident · No injuries · Closed · Mar 10, 1976 · N5010H · Substantial damage
- [NTSB SEA76FTA10](https://openairdocs.org/ntsb/SEA76FTA10.md): Piper PA-18 · Glasgow, MT · Accident · No injuries · Closed · Dec 23, 1975 · N5425H · Substantial damage
- [NTSB SEA75DTI21](https://openairdocs.org/ntsb/SEA75DTI21.md): Cessna 140A · Deer Lodge, MT · Accident · No injuries · Closed · Feb 27, 1975 · N1141D · Substantial damage
- [NTSB SEA75FTA06](https://openairdocs.org/ntsb/SEA75FTA06.md): Piper PA-11 · Hammond, MT · Accident · Serious injuries · Closed · Aug 19, 1974 · N4992H · Substantial damage
- [NTSB SEA72FTA18](https://openairdocs.org/ntsb/SEA72FTA18.md): Piper PA-18 · Laurel, MT · Accident · No injuries · Closed · Jun 28, 1972 · N5452H · Substantial damage
- [NTSB SEA72DTI10](https://openairdocs.org/ntsb/SEA72DTI10.md): Aeronca 7EC · Malta, MT · Accident · No injuries · Closed · Jan 21, 1972 · N7406B · Substantial damage
- [NTSB SEA71DTI39](https://openairdocs.org/ntsb/SEA71DTI39.md): Luscombe T-8F · Chinook, MT · Accident · No injuries · Closed · Jun 13, 1971 · N2216B · Substantial damage
- [NTSB SEA71DDA09](https://openairdocs.org/ntsb/SEA71DDA09.md): Aeronca 7AC · Opheim, MT · Accident · No injuries · Closed · Nov 15, 1970 · N81782 · Substantial damage
- [NTSB SEA70FDG05](https://openairdocs.org/ntsb/SEA70FDG05.md): Alon A-2 · Great Falls, MT · Accident · No injuries · Closed · May 23, 1970 · N5697F · Substantial damage
- [NTSB SEA70FDA07](https://openairdocs.org/ntsb/SEA70FDA07.md): Champion 7EC · Scobey, MT · Accident · No injuries · Closed · May 2, 1970 · N4382C · Substantial damage
- [NTSB SEA70D0058](https://openairdocs.org/ntsb/SEA70D0058.md): Cessna 140A · Hingham, MT · Accident · No injuries · Closed · Aug 1, 1969 · N9625A · Substantial damage
- [NTSB SEA69F0003](https://openairdocs.org/ntsb/SEA69F0003.md): Piper PA-11 · Zurich, MT · Accident · No injuries · Closed · Jun 10, 1968 · N4966H · Substantial damage
- [NTSB SEA68D0313](https://openairdocs.org/ntsb/SEA68D0313.md): Piper PA-11 · Wolf Point, MT · Accident · Minor injuries · Closed · May 18, 1968 · N78741 · Substantial damage
- [NTSB SEA68F0300](https://openairdocs.org/ntsb/SEA68F0300.md): Alon A-2 · Billings, MT · Accident · Serious injuries · Closed · Apr 29, 1968 · N6504Q · Substantial damage
- [NTSB SEA68F0116](https://openairdocs.org/ntsb/SEA68F0116-113798.md): Champion 7FC · Billings, MT · Accident · No injuries · Closed · Aug 28, 1967 · N9886B · Substantial damage
- [NTSB SEA68D0143](https://openairdocs.org/ntsb/SEA68D0143.md): Forney F-1 · Jordan, MT · Accident · No injuries · Closed · Aug 14, 1967 · N7551C · Substantial damage
- [NTSB SEA67D0019](https://openairdocs.org/ntsb/SEA67D0019.md): Champion 7EC · Issoula, MT · Accident · No injuries · Closed · Jun 6, 1966 · N4317C · Substantial damage
- [NTSB SEA66F0035](https://openairdocs.org/ntsb/SEA66F0035.md): Cessna 140A · Cut Bank, MT · Accident · No injuries · Closed · Jun 8, 1965 · N9625A · Substantial damage
- [NTSB SEA65D0016](https://openairdocs.org/ntsb/SEA65D0016.md): Piper PA-11 · Decker, MT · Accident · No injuries · Closed · Feb 6, 1965 · N5570H · 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" = '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.engine_model_code IN ('17009'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=17009&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.