# NTSB investigations, 2011, IL: Runway excursion

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 CEN11CA647](https://openairdocs.org/ntsb/CEN11CA647.md): Piper PA-28-181 · Pinckneyville, IL · Accident · No injuries · Data collection · Final report · Sep 14, 2011 · N9513C · Substantial damage
  > The pilot's failure to conduct a go-around due to his excessive airspeed while on approach to land, which resulted in a runway excursion.
- [NTSB ENG11IA047](https://openairdocs.org/ntsb/ENG11IA047.md): Embraer EMB145 · Moline, IL · Incident · No injuries · Incident investigation · Final report · Aug 29, 2011 · N27152 · Minor damage
  > The uncommanded left deflection of the airplane's nose wheel likely due to seal deterioration and subsequent contamination within the Electrohydraulic Servo Valve (EHSV). Contributing to the incident was the undersized condition of the filter plugs within the…
- [NTSB CEN11LA373](https://openairdocs.org/ntsb/CEN11LA373.md): Mooney M20R · Lake In The Hills, IL · Accident · No injuries · Limited investigation · Final report · Jun 4, 2011 · N5816P · Substantial damage
  > The pilot's improper landing flare and recovery from a bounced landing, which resulted in a loss of control. Contributing to the accident was the certified flight instructor’s inadequate supervision.
- [NTSB CEN11FA220](https://openairdocs.org/ntsb/CEN11FA220.md): Mooney M20J · Romeoville, IL · Accident · No injuries · Field investigation · Final report · Feb 19, 2011 · N888DF · Substantial damage
  > The collapse of the left main landing gear during the landing roll for undetermined reasons.
- [NTSB CEN11CA184](https://openairdocs.org/ntsb/CEN11CA184.md): Cessna 172N · Poplar Grove, IL · Accident · No injuries · Data collection · Final report · Feb 12, 2011 · N733TM · Substantial damage
  > The student pilot's failure to maintain directional control of the airplane during the takeoff.
- [NTSB CEN11CA181](https://openairdocs.org/ntsb/CEN11CA181.md): Piper PA-28-140 · Lansing, IL · Accident · No injuries · Data collection · Final report · Feb 8, 2011 · N4643R · Substantial damage
  > The pilot’s loss of directional control during the landing.
- [NTSB CEN11LA178](https://openairdocs.org/ntsb/CEN11LA178.md): Beech A36 · Danville, IL · Accident · No injuries · Limited investigation · Final report · Feb 7, 2011 · N6XZ · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll.
- [NTSB CEN11FA144](https://openairdocs.org/ntsb/CEN11FA144.md): Gates Learjet 35A · Springfield, IL · Accident · Minor injuries · Field investigation · Final report · Jan 6, 2011 · N800GP · Substantial damage
  > The pilot’s decision to conduct an instrument approach in icing conditions without the anti-ice system activated, contrary to the airplane flight manual guidance, which resulted in an inadvertent aerodynamic stall due to an in-flight accumulation of airframe…

## 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") = 2011
  AND c."eventStateOrRegion" = 'IL' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '300' 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/300/sequence?state=IL&year=2011

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