# NTSB investigations: Continental IO-520-F, 1986

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 ANC86LA158](https://openairdocs.org/ntsb/ANC86LA158.md): Cessna 207A · Mountain Villag, AK · Accident · No injuries · Limited investigation · Final report · Sep 17, 1986 · N9736M · Substantial damage
  > The airline transport pilot who is also a certificated airframe and powerplant mechanic elected to defer brake repairs until the end of the flying day. The fatigued right brake line failed before the end of the day's flying activity. During lndg the brakes…
- [NTSB ANC86IA137](https://openairdocs.org/ntsb/ANC86IA137.md): Cessna 207A · Togiak, AK · Incident · No injuries · Incident investigation · Final report · Aug 24, 1986 · N1472M · Minor damage
  > After landing the airplane was taxiing to park and the pilot noticed the steering becoming stiff. He stopped the airplane and examined the nose gear and found it to have pivoted forward with the wheel coming to rest against the nose cowling. The mechanic…
- [NTSB ANC86FA078](https://openairdocs.org/ntsb/ANC86FA078.md): Cessna 207A · Saint Marys, AK · Accident · 1 fatal · Field investigation · Final report · Jun 17, 1986 · N9699M · Destroyed
  > The pilot stalled the airplane while making a steep turn to avoid high voltage power lines. The airplane caught fire on impact and the air taxi pilot subsequently died of extensive thermal injuries. The plt was flying in formation with another acft at low…
- [NTSB DEN86FA115](https://openairdocs.org/ntsb/DEN86FA115.md): Cessna 207A · Ogden, UT · Accident · Minor injuries · Field investigation · Final report · Apr 12, 1986 · N1721Q · Substantial damage
  > Acft was en route to slc where it was to be put on static display with other acft equipped with soloy-conversions (allison 250-C20S turboshaft engine installation). During descent through 12,000 ft into slc area eng flamed out and the prop auto-feathered. Plt…
- [NTSB ANC86IA033](https://openairdocs.org/ntsb/ANC86IA033.md): Cessna 207 · Barrow, AK · Incident · No injuries · Incident investigation · Final report · Mar 10, 1986 · N9943M · Minor damage
  > Engine failed and seized in flight. A forced landing and the snow covered tundra followed with no injuries & minor damage to the airplane. Engine teardown and exam revealed #3 cylinder wrist pin broken.

## 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 year(c."eventDate") = 1986
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17237'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=17237&year=1986

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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.