# NTSB investigations: Boeing A75N1(PT17): 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 CEN20LA383](https://openairdocs.org/ntsb/CEN20LA383.md): Stearman A75N1(PT17) · Henderson, TX · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 5, 2020 · N373VU · Substantial damage
  > The pilot’s failure to maintain proper airspeed, resulting in an aerodynamic stall after takeoff.
- [NTSB CEN17LA032](https://openairdocs.org/ntsb/CEN17LA032.md): Boeing A75N1 (PT17) · Ingleside, TX · Accident · No injuries · Limited investigation · Final report · Oct 25, 2016 · N48182 · Substantial damage
  > The pilot's failure to maintain proper yaw and roll control during takeoff, which resulted in excessive adverse yaw upon liftoff.
- [NTSB CEN11LA578](https://openairdocs.org/ntsb/CEN11LA578.md): Boeing A75N1(PT17) · Fabens, TX · Accident · Serious injuries · Limited investigation · Final report · Aug 14, 2011 · N53473 · Substantial damage
  > The pilot’s decision to continue the high density altitude takeoff with reduced engine power and his decision to initiate a turn back to the runway with insufficient airspeed, which resulted in an aerodynamic stall.
- [NTSB CEN11LA365](https://openairdocs.org/ntsb/CEN11LA365.md): Boeing A75N1 (PT17) · Freemont, MI · Accident · Minor injuries · Limited investigation · Final report · May 27, 2011 · N60147 · Substantial damage
  > The pilot’s failure to attain a positive climb rate following takeoff for reasons that could not be determined because the propeller was not provided for further examination. Contributing to the accident was the pilot's impairment from alcohol.

## 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.aircraft_model_code IN ('1380134')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '240' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/240/sequence?model=1380134

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