# NTSB investigations, 2009: Loss of lift

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 ERA09CA479](https://openairdocs.org/ntsb/ERA09CA479.md): Jonker JS-1B · Tullahoma, TN · Accident · No injuries · Data collection · Final report · Aug 23, 2009 · N504BT · Substantial damage
  > The pilot's failure to maintain a proper glidepath while on approach, resulting in landing short of the runway.
- [NTSB CEN09CA516](https://openairdocs.org/ntsb/CEN09CA516.md): Grumman Acft ENG Cor-Schweizer G-164A · Harlan, IA · Accident · No injuries · Data collection · Final report · Aug 10, 2009 · N4598 · Substantial damage
  > The pilot's failure to perform accurate weight and balance calculations which resulted in exceeding the maximum takeoff weight and the airplane's climb capability.
- [NTSB WPR09CA389](https://openairdocs.org/ntsb/WPR09CA389.md): Eiriavion PIK 20B · Marana, AZ · Accident · No injuries · Data collection · Final report · Aug 5, 2009 · N77MA · Substantial damage
  > A loss of lift that resulted in an off-airport landing.
- [NTSB WPR09CA344](https://openairdocs.org/ntsb/WPR09CA344.md): Schweizer SGS 1-26A · Lake Riverside, CA · Accident · No injuries · Data collection · Final report · Jul 14, 2009 · N2701Z · Substantial damage
  > A loss of lift which necessitated a forced landing in a field.
- [NTSB CEN09CA273](https://openairdocs.org/ntsb/CEN09CA273.md): Robinson Helicopter R22 Beta · New Braunfels, TX · Accident · No injuries · Data collection · Final report · Apr 30, 2009 · N7519V · Substantial damage
  > The pilot's failure to maintain adequate main rotor rpm during a practice autorotation. Contributing to the accident was the instructor pilot's delayed remedial action.
- [NTSB WPR09LA160](https://openairdocs.org/ntsb/WPR09LA160.md): Robinson Helicopter R22 · Prescott, AZ · Accident · No injuries · Limited investigation · Final report · Mar 20, 2009 · N90764 · Substantial damage
  > The pilot's failure to maintain adequate main rotor rpm while maneuvering at a low altitude.
- [NTSB CEN09CA180](https://openairdocs.org/ntsb/CEN09CA180.md): Robinson Helicopter R22 Beta · O'Donnell, TX · Accident · Minor injuries · Data collection · Final report · Feb 25, 2009 · N387AC · Substantial damage
  > The pilot's failure to maintain control while performing a quick stop maneuver to an out of ground effect (OGE) hover. Contributing to the accident was the high density altitude and near calm wind condition.

## 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") = 2009
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '500' 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/500/sequence?year=2009

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