# NTSB investigations: Piper PA-18A: Nose over/nose down

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 WPR17LA102](https://openairdocs.org/ntsb/WPR17LA102.md): Piper PA 18A · Coeur D'Alene, ID · Accident · Minor injuries · Limited investigation · Final report · May 8, 2017 · N245KW · Substantial damage
  > The loss of yaw control due to an inadequately compressed rudder swage, which resulted from inadequate maintenance and led to the separation of the forward right rudder cable.
- [NTSB GAA17CA027](https://openairdocs.org/ntsb/GAA17CA027.md): Piper PA18 · Palmer, AK · Accident · Minor injuries · Data collection · Final report · Oct 14, 2016 · N2791P · Substantial damage
  > The airplane's encounter with a depression while the pilot applied excessive braking during the landing roll on a grass airstrip, which resulted in a nose-over.
- [NTSB WPR14CA212](https://openairdocs.org/ntsb/WPR14CA212.md): Piper PA 18A · Arlington, WA · Accident · No injuries · Data collection · Final report · May 18, 2014 · N7474D · Substantial damage
  > The pilot's improper application of brakes during taxi in tailwind conditions, which resulted in a loss of aircraft control and subsequent nose over.
- [NTSB WPR14CA152](https://openairdocs.org/ntsb/WPR14CA152.md): Piper PA 18A · Wheatland, WY · Accident · No injuries · Data collection · Final report · Mar 30, 2014 · N1952P · Substantial damage
  > The front seat pilot's excessive approach speed and subsequent brake application during the landing which resulted in a nose-over. Contributing to the accident was the instructor's failure to maintain situational awareness.
- [NTSB CEN09CA062](https://openairdocs.org/ntsb/CEN09CA062.md): Piper PA-18 · Foraker, OK · Accident · No injuries · Data collection · Final report · Nov 16, 2008 · N7096D · Substantial damage
  > The pilot's failure to maintain directional control during the precautionary landing. Contributing to the accident were the wind gusts.

## 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 ('7101804', '7102831')
    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" = '096' 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/096/sequence?model=7101804

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