# NTSB investigations, 2011: Turbulence encounter

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 WPR12LA053](https://openairdocs.org/ntsb/WPR12LA053.md): Boeing 737-7H4 · Oakland, CA · Accident · Serious injuries · Limited investigation · Final report · Dec 2, 2011 · N261WN · No damage
  > The flight crew’s flight into known severe turbulence associated with mountain wave activity.
- [NTSB WPR12LA057](https://openairdocs.org/ntsb/WPR12LA057.md): Boeing 757-222 · Modesto, CA · Accident · Serious injuries · Limited investigation · Final report · Dec 1, 2011 · N547UA · No damage
  > The flight's encounter with known severe turbulence associated with mountain wave activity, which resulted in a flight attendant sustaining a broken ankle.
- [NTSB DCA12WA010](https://openairdocs.org/ntsb/DCA12WA010.md): Boeing 777 - 200 · Nani, Kenya · Accident · No injuries · Foreign investigation · Oct 28, 2011 · A7-BBD · No damage
  > On October 28, 2011 about 1544 hours UTC, a Boeing 777-200LR, registration number A7-BBD, operated by Qatar Airways, encountered inflight turbulence, during cruise flight near Nani, Kenya. A cabin crew member received serious injuries. The flight originated…
- [NTSB ERA12CA044](https://openairdocs.org/ntsb/ERA12CA044.md): Boeing 767-2B7 · New York, NY · Accident · Serious injuries · Data collection · Final report · Oct 20, 2011 · N253AY · No damage
  > The passenger's lack of compliance with the illuminated seatbelt sign, which resulted in her injury during a turbulence encounter.
- [NTSB DCA11WA110](https://openairdocs.org/ntsb/DCA11WA110.md): Boeing 777 · Montauk (Atlantic Ocean) · Accident · Serious injuries · Foreign investigation · Sep 12, 2011 · OE-LPB · No damage
  > The Unfalluntersuchungsstelle - Luftfahrt Accident Investigation Branch of Austria has notified the NTSB of an accident involving a Boeing 777-200 that occurred on September 12, 2011. The NTSB has appointed a U.S. Accredited Representative to assist the…
- [NTSB ANC11CA101](https://openairdocs.org/ntsb/ANC11CA101.md): Douglas DC-8-62F · Yakota, Japan · Accident · Serious injuries · Data collection · Final report · Sep 10, 2011 · N71CX · No damage
  > The passenger's decision to ignore the fasten seatbelt sign, resulting in serious injury to the passenger during a turbulence encounter.
- [NTSB DCA11CA116](https://openairdocs.org/ntsb/DCA11CA116.md): Boeing 737 7H4 · Cape Coral, FL · Accident · Serious injuries · Data collection · Final report · Sep 6, 2011 · N936WN · No damage
  > An encounter with convective turbulence during the descent.
- [NTSB DCA11FA091](https://openairdocs.org/ntsb/DCA11FA091.md): Boeing 747-422 · Tangshan, China · Accident · Serious injuries · Field investigation · Final report · Jul 29, 2011 · N173UA · No damage
  > an inadvertent encounter with convectively induced turbulence likely due to radar limitations and convective weather developing upwards into the flight path.
- [NTSB ANC11CA058](https://openairdocs.org/ntsb/ANC11CA058.md): Aviat A-1B · Palmer, AK · Accident · Serious injuries · Data collection · Final report · Jul 6, 2011 · N949AK · Substantial damage
  > The pilot's decision to fly at a low altitude in mountainous terrain and weather conditions conducive to downdrafts.
- [NTSB WPR11FA302](https://openairdocs.org/ntsb/WPR11FA302.md): Schleicher ASW-20 · Lone Pine, CA · Accident · 1 fatal · Field investigation · Final report · Jul 2, 2011 · N838KS · Substantial damage
  > The glider encountered a strong downward orographic wind flow and turbulence that forced it into terrain. Also causal was the pilot’s decision to operate the glider very close to the terrain.
- [NTSB ERA11CA367](https://openairdocs.org/ntsb/ERA11CA367.md): Mcdonnell Douglas MD88 · Miami, FL · Accident · Serious injuries · Data collection · Final report · Jun 22, 2011 · N884DA · No damage
  > The in-flight encounter with convective turbulence, resulting in an injury to a cabin attendant.
- [NTSB ERA11LA344](https://openairdocs.org/ntsb/ERA11LA344.md): Beech A100 · Gray, TN · Accident · No injuries · Limited investigation · Final report · Jun 15, 2011 · N15L · Substantial damage
  > An encounter with convectively-induced turbulence and icing, which resulted in an in-flight upset and a loss of airplane control.
- [NTSB ERA11CA327](https://openairdocs.org/ntsb/ERA11CA327.md): Bombardier CL600-2D24 · Florence, SC · Accident · Serious injuries · Data collection · Final report · Jun 6, 2011 · N929LR · No damage
  > The inadvertent in-flight encounter with turbulence, resulting in an injury to a cabin attendant.
- [NTSB ERA11LA330](https://openairdocs.org/ntsb/ERA11LA330.md): Beech C90 · Camden, SC · Accident · No injuries · Limited investigation · Final report · May 27, 2011 · N291CC · Substantial damage
  > The pilot's in-flight decision to continue toward his destination, through known significant weather, when safer alternatives were available.
- [NTSB ANC11CA036](https://openairdocs.org/ntsb/ANC11CA036.md): Piper J5A · Palmer, AK · Accident · No injuries · Data collection · Final report · May 27, 2011 · N2364 · Substantial damage
  > The pilot's inadequate compensation for wind conditions.
- [NTSB DCA11CA060](https://openairdocs.org/ntsb/DCA11CA060.md): Boeing 757 · Boone, NC · Accident · Serious injuries · Data collection · Final report · May 23, 2011 · N623DL · No damage
  > Inadvertant encounter with convective turbulence while in cruise. Contributing to the severity of the accident was the unrestrained status of the passenger, contrary to the lighted seat belt sign.
- [NTSB DCA11CA070](https://openairdocs.org/ntsb/DCA11CA070.md): De Havilland DHC8 · Baltimore, MD · Accident · Serious injuries · Data collection · Final report · May 16, 2011 · N351NG · No damage
  > an inadvertent encounter with clear air turbulence.
- [NTSB DCA11FA053](https://openairdocs.org/ntsb/DCA11FA053.md): Airbus A319 · Chillicothe, MO · Accident · Serious injuries · Field investigation · Final report · May 9, 2011 · N801UA · No damage
  > An inadvertent encounter with unforecast convective turbulence.
- [NTSB ERA11CA280](https://openairdocs.org/ntsb/ERA11CA280.md): Bombardier BD700 1A10 · Teterboro, NJ · Accident · No injuries · Data collection · Final report · Apr 21, 2011 · N113CS · Substantial damage
  > The pilot's loss of aircraft control during landing in gusty wind conditions.
- [NTSB ERA11CA247](https://openairdocs.org/ntsb/ERA11CA247.md): Boeing 757-2B7 · Cheltenham, MD · Accident · Serious injuries · Data collection · Final report · Apr 17, 2011 · N200UU · No damage
  > The in-flight encounter with turbulence, resulting in an injury to a cabin attendant.
- [NTSB ANC11LA027](https://openairdocs.org/ntsb/ANC11LA027.md): Piper PA-32-301 · Cold Bay, AK · Accident · No injuries · Limited investigation · Final report · Apr 15, 2011 · N81052 · Substantial damage
  > An in-flight encounter with unforecast turbulence, which resulted in structural damage to the stabilator.
- [NTSB WPR11LA203](https://openairdocs.org/ntsb/WPR11LA203.md): Boeing 777-223 · Pacific Ocean · Accident · Serious injuries · Limited investigation · Final report · Apr 11, 2011 · N766AN · No damage
  > An inadvertent encounter with convective-induced turbulence upon entering cumulonimbus clouds.
- [NTSB CEN11LA250](https://openairdocs.org/ntsb/CEN11LA250.md): Embraer EMB-145LR · Kansas City, MO · Accident · Serious injuries · Limited investigation · Final report · Mar 26, 2011 · N931AE · No damage
  > An in-flight encounter with convectively induced turbulence associated with developing thunderstorms under the flight path during the airplane's climb to cruise flight.
- [NTSB WPR11FA155](https://openairdocs.org/ntsb/WPR11FA155.md): Muse KR2 · Newberry Springs, CA · Accident · 1 fatal · Field investigation · Final report · Mar 7, 2011 · N122B · Substantial damage
  > The airplane’s encounter with severe turbulence, which resulted in the in-flight breakup of the airplane. Contributing to the accident was the pilot’s inadequate preflight planning.
- [NTSB WPR11LA149](https://openairdocs.org/ntsb/WPR11LA149.md): Boeing 757-232 · Naches, WA · Accident · Serious injuries · Limited investigation · Final report · Feb 28, 2011 · N684DA · No damage
  > The airplane's encounter with moderate turbulence at a higher altitude than the flight crew expected, resulting in an injury to a cabin crewmember.
- [NTSB ERA11CA152](https://openairdocs.org/ntsb/ERA11CA152.md): Airbus A320-232 · North Fayston, VT · Accident · Serious injuries · Data collection · Final report · Feb 19, 2011 · N706JB · No damage
  > The airplane's inadvertent encounter with turbulence during the approach, which resulted in serious injury to a flight attendant.
- [NTSB WPR11LA139](https://openairdocs.org/ntsb/WPR11LA139.md): Boeing 767-300 · Ni'ihau, HI · Accident · Serious injuries · Limited investigation · Final report · Feb 10, 2011 · JA603J · No damage
  > An encounter with unanticipated convectively induced windshear and turbulence during descent.

## 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."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '360' 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/360/sequence?year=2011

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