# NTSB investigations: Piper PA-44-180: Landing gear collapse

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 WPR21LA117](https://openairdocs.org/ntsb/WPR21LA117.md): Piper PA-44-180 · Redmond, OR · Accident · No injuries · Class 3 · Limited · Final report · Feb 7, 2021 · N125MG · Substantial damage
  > Failure of the landing gear strut piston tube due to fatigue cracking from corrosion pitting.
- [NTSB ERA17LA204](https://openairdocs.org/ntsb/ERA17LA204.md): Piper PA 44-180 · Gaithersburg, MD · Accident · No injuries · Limited investigation · Final report · Jun 9, 2017 · N3020M · Substantial damage
  > The failure of the right main landing gear trunnion bracket due to an undetermined overstress event.
- [NTSB GAA17CA349](https://openairdocs.org/ntsb/GAA17CA349.md): Piper PA44 · Tulsa, OK · Accident · No injuries · Data collection · Final report · Apr 19, 2017 · N4148T · Substantial damage
  > The pilot receiving instruction’s failure to maintain directional control during landing in gusting wind conditions.
- [NTSB ERA15LA225](https://openairdocs.org/ntsb/ERA15LA225.md): Piper PA44 · Miami, FL · Accident · No injuries · Limited investigation · Final report · May 23, 2015 · N2163F · Substantial damage
  > The failure of the nose landing gear upper drag link knee bolt due to reverse-bending fatigue, which was likely preceded by excessive bearing wear due to reasons that could not be determined based on the available evidence.
- [NTSB ERA14IA370](https://openairdocs.org/ntsb/ERA14IA370.md): Piper PA-44-180 · Jacksonville, FL · Incident · No injuries · Incident investigation · Final report · Jul 31, 2014 · N216FW · Minor damage
  > The nose landing gear collapse for reasons that could not be determined because examination of the airplane revealed no anomalies.
- [NTSB WPR13LA349](https://openairdocs.org/ntsb/WPR13LA349.md): Piper PA-44-180 · Billings, MT · Accident · No injuries · Limited investigation · Final report · Jul 30, 2013 · N5367Y · Substantial damage
  > The pilots’ inadequate landing flare, which resulted in a hard landing and collapse of the left main landing gear.
- [NTSB ERA12LA494](https://openairdocs.org/ntsb/ERA12LA494.md): Piper PA-44-180 · Titusville, FL · Accident · No injuries · Limited investigation · Final report · Aug 1, 2012 · N740FT · Substantial damage
  > Inadequate maintenance servicing and inspection of the nose landing gear, which resulted in the failure of the nose landing gear to lock and its subsequent collapse during landing.
- [NTSB ERA12LA117](https://openairdocs.org/ntsb/ERA12LA117.md): Piper PA-44-180 · Lawrenceville, GA · Accident · No injuries · Limited investigation · Final report · Dec 19, 2011 · N790GK · Substantial damage
  > The mechanic's improper installation and lubrication of the bushing on the right main landing gear truss assembly, which resulted in the landing gear not locking in the down position.
- [NTSB WPR11LA471](https://openairdocs.org/ntsb/WPR11LA471.md): Piper PA-44-180 · Phoenix, AZ · Accident · No injuries · Limited investigation · Final report · Sep 4, 2011 · N316PA · Substantial damage
  > The pilot's improper flare and hard landing, which resulted in the failure of the nose landing gear drag link in overstress.
- [NTSB CEN10CA311](https://openairdocs.org/ntsb/CEN10CA311.md): Piper PA-44-180 · Okmulgee, OK · Accident · No injuries · Data collection · Final report · Jun 1, 2010 · N9290P · Substantial damage
  > The student pilot’s inadvertent retraction of the nose landing gear and the flight instructor's delayed response.
- [NTSB WPR10LA210](https://openairdocs.org/ntsb/WPR10LA210.md): Piper PA-44-180 · Tooele, UT · Accident · Minor injuries · Limited investigation · Final report · Apr 21, 2010 · N331GP · Substantial damage
  > The complete loss of power in one engine due to fuel starvation as a result of the pilot's failure to reposition the cross-feed valve prior to takeoff and the flight instructor's failure to monitor the pilot's actions. Contributing to the accident was the…

## 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 ('7104402', '7104406')
    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" = '094' 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/094/sequence?model=7104402

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