# NTSB investigations, 2011: Landing gear not configured

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 ANC12CA012](https://openairdocs.org/ntsb/ANC12CA012.md): Piper PA-31-350 · Kaltag, AK · Accident · No injuries · Data collection · Final report · Dec 8, 2011 · N300ED · Substantial damage
  > The pilot landed without lowering the landing gear. Contributing to the accident was the pilot's self-reported fatigue.
- [NTSB ERA12LA070](https://openairdocs.org/ntsb/ERA12LA070.md): Cessna 172RG · Kissimmee, FL · Accident · No injuries · Limited investigation · Final report · Nov 8, 2011 · N5095V · Substantial damage
  > A fatigue failure of the right main landing gear pivot assembly, which prevented the landing gear from extending.
- [NTSB CEN12CA036](https://openairdocs.org/ntsb/CEN12CA036.md): Cessna 210J · West Chicago, IL · Accident · No injuries · Data collection · Final report · Oct 23, 2011 · N3309S · Substantial damage
  > The pilot's failure to extend the landing gear before touchdown due to his failure to use a checklist.
- [NTSB WPR12CA016](https://openairdocs.org/ntsb/WPR12CA016.md): Beech D17S · Phoenix, AZ · Accident · No injuries · Data collection · Final report · Oct 18, 2011 · N44562 · Substantial damage
  > The pilot's failure to extend the landing gear.
- [NTSB CEN11LA632](https://openairdocs.org/ntsb/CEN11LA632.md): Piper/Cub Crafters PA-18-150 · Long Lake, WI · Accident · Minor injuries · Limited investigation · Final report · Sep 8, 2011 · N902CC · Substantial damage
  > The pilot's failure to complete the prelanding checklist, which resulted in the landing gear wheels not being retracted for the water landing.
- [NTSB CEN11IA615](https://openairdocs.org/ntsb/CEN11IA615.md): Bombardier CL-600-2B19 · Baton Rouge, LA · Incident · No injuries · Incident investigation · Final report · Sep 1, 2011 · N875AS · Minor damage
  > The improperly installed upper attachment bolt in the left main landing gear uplock assembly, which led to the failure of the left main landing gear to extend before landing. Contributing to the accident was maintenance personnel's lack of training on the…
- [NTSB CEN11CA640](https://openairdocs.org/ntsb/CEN11CA640.md): Cessna T210M · Cahokia, IL · Accident · No injuries · Data collection · Final report · Aug 25, 2011 · N44HR · Substantial damage
  > A failure of a spring in the main landing gear actuation system that prevented the landing gear from extending.
- [NTSB CEN11CA561](https://openairdocs.org/ntsb/CEN11CA561.md): Cessna TR182 · Bloomington, IN · Accident · No injuries · Data collection · Final report · Aug 9, 2011 · N9281R · Substantial damage
  > The pilot's failure to extend the landing gear prior to landing.
- [NTSB ERA11LA461](https://openairdocs.org/ntsb/ERA11LA461.md): Piper PA-46-310P · Elizabethtown, NC · Accident · No injuries · Limited investigation · Final report · Aug 6, 2011 · N469CC · Substantial damage
  > The improper securing of a “B” nut on the power turbine control (Py) line by unknown maintenance personnel, which resulted in a total loss of engine power. Contributing to the accident was the pilot's failure to use the manual fuel override switch.
- [NTSB CEN11CA518](https://openairdocs.org/ntsb/CEN11CA518.md): Cessna 180D · Oscoda, MI · Accident · No injuries · Data collection · Final report · Jul 24, 2011 · N6425X · Substantial damage
  > The pilot's failure to retract the landing gear before a water landing. Contributing to the accident was the pilot's failure to use a checklist.
- [NTSB ERA11CA382](https://openairdocs.org/ntsb/ERA11CA382.md): Beech A36 · Wauchula, FL · Accident · No injuries · Data collection · Final report · Jul 5, 2011 · N8036V · Substantial damage
  > The pilot's failure to extend the landing gear during the approach.
- [NTSB CEN11CA461](https://openairdocs.org/ntsb/CEN11CA461.md): Piper PA-24-180 · Amarillo, TX · Accident · No injuries · Data collection · Final report · Jul 4, 2011 · N5621P · Substantial damage
  > The pilot's failure to lower the landing gear prior to landing.
- [NTSB CEN11LA418](https://openairdocs.org/ntsb/CEN11LA418.md): Piper PA-28R-201 · Rantoul, IL · Accident · No injuries · Limited investigation · Final report · Jun 25, 2011 · N4106Q · Substantial damage
  > The pilot did not use the emergency landing gear extension system, which resulted in a wheels-up landing. Contributing to the accident was the inoperative landing gear power pack motor.
- [NTSB WPR11LA292](https://openairdocs.org/ntsb/WPR11LA292.md): Cessna 320F · Phoenix, AZ · Accident · No injuries · Limited investigation · Final report · Jun 21, 2011 · N6160Q · Substantial damage
  > The mechanic's failure to properly secure the nose landing gear actuator push-pull tube to the landing gear door hinge clevis, which resulted in the gear jamming and not fully retracting after takeoff.
- [NTSB ANC11CA044](https://openairdocs.org/ntsb/ANC11CA044.md): Douglas DC-6B · Cold Bay, AK · Accident · No injuries · Data collection · Final report · Jun 12, 2011 · N600UA · Substantial damage
  > The flight crew's failure to extend the landing gear, which resulted in an inadvertent wheels up landing. Contributing to the accident was the flight crew's diverted attention.
- [NTSB CEN11IA379](https://openairdocs.org/ntsb/CEN11IA379.md): Bombardier CL-600-2B19 · Milwaukee, WI · Incident · No injuries · Incident investigation · Final report · Jun 7, 2011 · N866AS · Minor damage
  > The failure of the right main landing gear (MLG) to extend normally, which resulted from the combination of a slightly worn uplock pin, the operation of the hydraulic pumps below their specified operating pressures, and contamination within the landing gear…
- [NTSB ANC11LA041](https://openairdocs.org/ntsb/ANC11LA041.md): Eclipse EA500 · Nome, AK · Accident · No injuries · Limited investigation · Final report · Jun 2, 2011 · N168TT · Substantial damage
  > The pilot landed without lowering the landing gear. Contributing to the accident was the pilot's decision to fly the airplane with an inoperative wing flap system.
- [NTSB CEN11LA327](https://openairdocs.org/ntsb/CEN11LA327.md): Piper PA 46-350P · Chico, TX · Accident · No injuries · Limited investigation · Final report · May 8, 2011 · N80JB · Substantial damage
  > The mechanic's improper installation of the turbocharger's exhaust balance system, which resulted in an in-flight fire.
- [NTSB ERA11CA238](https://openairdocs.org/ntsb/ERA11CA238.md): Mooney M20K · Augusta, GA · Accident · No injuries · Data collection · Final report · Apr 11, 2011 · N777CV · Substantial damage
  > The pilot's failure to extend the landing gear prior to landing. Contributing to the accident was the pilot’s reported fatigue.
- [NTSB CEN11CA277](https://openairdocs.org/ntsb/CEN11CA277.md): Piper PA-24-260 · Kansas City, MO · Accident · No injuries · Data collection · Final report · Mar 29, 2011 · N8546P · Substantial damage
  > The pilot's failure to extend the landing gear for a landing.
- [NTSB WPR11FA159](https://openairdocs.org/ntsb/WPR11FA159.md): Fairchild SA227-AC · Seattle, WA · Accident · No injuries · Field investigation · Final report · Mar 11, 2011 · N671AV · Substantial damage
  > The pilot's failure to extend the landing gear, which resulted in a gear-up landing.
- [NTSB CEN11CA216](https://openairdocs.org/ntsb/CEN11CA216.md): Cessna A185F · Belle Chase, LA · Accident · No injuries · Data collection · Final report · Mar 7, 2011 · N434JG · Substantial damage
  > The pilot's failure to ensure that the landing gear was retracted for the water landing.
- [NTSB WPR11LA154](https://openairdocs.org/ntsb/WPR11LA154.md): Cessna 210 · Pahrump, NV · Accident · No injuries · Limited investigation · Final report · Mar 6, 2011 · N9400T · Substantial damage
  > The pilot's failure to extend the landing gear prior to touchdown and his improper decision to abort a gear-up landing following a propeller strike.
- [NTSB CEN11CA212](https://openairdocs.org/ntsb/CEN11CA212.md): Beech G35 · Brenham, TX · Accident · No injuries · Data collection · Final report · Feb 27, 2011 · N437D · Substantial damage
  > The pilot’s failure to extend the landing gear during the approach resulting in a gear-up landing.
- [NTSB WPR11CA142](https://openairdocs.org/ntsb/WPR11CA142.md): Piper PA-31P-350 · North Bend, OR · Accident · No injuries · Data collection · Final report · Feb 22, 2011 · N9237Y · Substantial damage
  > The pilot's failure to lower the landing gear while on approach to landing. Contributing to the accident was the pilot's failure to follow a written checklist during the approach portion of the flight.
- [NTSB CEN11CA185](https://openairdocs.org/ntsb/CEN11CA185.md): Piper PA-28RT-201 · Danville, IN · Accident · No injuries · Data collection · Final report · Feb 14, 2011 · N2878N · Substantial damage
  > The pilot's failure to extend the landing gear prior to touchdown.
- [NTSB WPR11CA130](https://openairdocs.org/ntsb/WPR11CA130.md): Allardyce Michael Glastar · Wilsonville, OR · Accident · Minor injuries · Data collection · Final report · Feb 9, 2011 · N238MA · Substantial damage
  > The pilot's failure to raise the landing gear wheels prior to landing in water, resulting in a nose over.
- [NTSB CEN11IA179](https://openairdocs.org/ntsb/CEN11IA179.md): Cessna 210N · Columbia, MO · Incident · No injuries · Incident investigation · Final report · Feb 8, 2011 · N92MP · Minor damage
  > The pilot did not extend the landing gear before touchdown due to his distraction during the landing approach and his not using a landing checklist.
- [NTSB CEN11CA155](https://openairdocs.org/ntsb/CEN11CA155.md): Cessna R182 · Houston, TX · Accident · No injuries · Data collection · Final report · Jan 19, 2011 · N6187S · Substantial damage
  > The failure of the landing gear to fully extend and lock in the down position due to the inoperative electric pump motor.
- [NTSB WPR11CA141](https://openairdocs.org/ntsb/WPR11CA141.md): Piper PA-24-250 · Aurora, OR · Accident · No injuries · Data collection · Final report · Jan 18, 2011 · N3TP · Substantial damage
  > The pilot's failure to lower the landing gear prior to landing.

## 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" = '095' 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/095/sequence?year=2011

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