# NTSB investigations: Lycoming GO-435C&D series: Loss of control - in flight

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 SEA02FA036](https://openairdocs.org/ntsb/SEA02FA036.md): Aero Commander 520 · Puyallup, WA · Accident · Serious injuries · Field investigation · Final report · Feb 2, 2002 · N520SE · Substantial damage
  > The pilot's failure to maintain aircraft control during takeoff. Trees were a factor.
- [NTSB ANC90LA178](https://openairdocs.org/ntsb/ANC90LA178.md): Helio H-391B · Circle, AK · Accident · No injuries · Limited investigation · Final report · Sep 13, 1990 · N316HW · Substantial damage
  > Pilot-in-command's failure to maintain airplane control and the pilot's failure to identify the stall.
- [NTSB ANC84LA126](https://openairdocs.org/ntsb/ANC84LA126.md): Grumman G-44A · Shanin Lake, AK · Accident · No injuries · Limited investigation · Final report · Jul 28, 1984 · N9900H · Substantial damage
  > The plt reported that shortly after takeoff the acft encountered severe wind shear. The plt lost directional control of the acft & it collided with a mud bank.
- [NTSB LAX82FA357](https://openairdocs.org/ntsb/LAX82FA357.md): Aero Commander 520 · Agoura, CA · Accident · 3 fatal · Field investigation · Final report · Sep 26, 1982 · N2622B · Destroyed
  > During departure, the pilot climbed in IFR conditions to 600O ft. after leveling, a frequency change was made and he was cleared to 8000 ft, which he acknowledged. About 2 min later, the controller radioed to the pilot that he was about 4 mi north of the…

## 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 ('41521')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 250))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41521&occurrence=250

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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.