# NTSB investigations, MA: Not determined, general

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 ERA25LA100](https://openairdocs.org/ntsb/ERA25LA100.md): Consolidated Aeronautics Lake LA-4-200 · Orange, MA · Accident · No injuries · Class 4 · Limited · Final report · Jan 12, 2025 · N8BZ · Substantial damage
  > Failure of the left main landing gear to fully extend and lock for undetermined reasons as a functional test of the landing gear system could not duplicate the anomaly.
- [NTSB ERA22LA187](https://openairdocs.org/ntsb/ERA22LA187.md): Lancair IV · Leicester, MA · Accident · No injuries · Class 3 · Limited · Final report · Apr 10, 2022 · N7KJ · Substantial damage
  > A separation of the window from the airframe for undetermined reasons.
- [NTSB ERA16LA300](https://openairdocs.org/ntsb/ERA16LA300.md): Cessna 150 · Littleton, MA · Accident · No injuries · Limited investigation · Final report · Aug 19, 2016 · N9230U · Substantial damage
  > A total loss of engine power during descent for reasons that could not be determined because postaccident examination of the airframe and engine revealed no anomalies that would have precluded normal operation.
- [NTSB ERA14LA043](https://openairdocs.org/ntsb/ERA14LA043.md): Maule M-5-180C · Marshfield, MA · Accident · Serious injuries · Limited investigation · Final report · Nov 15, 2013 · N76RD · Destroyed
  > A partial loss of engine power for reasons that could not be determined in postaccident examinations because fire damage precluded testing of the fuel and several engine accessories.
- [NTSB ERA13LA360](https://openairdocs.org/ntsb/ERA13LA360.md): Quest Kodiak 100 · Westport, MA · Accident · Minor injuries · Limited investigation · Final report · Aug 11, 2013 · N10PZ · Substantial damage
  > A failure to achieve a positive climb rate after takeoff for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any mechanical malfunctions or anomalies that would have precluded normal operation.
- [NTSB ERA13LA241](https://openairdocs.org/ntsb/ERA13LA241.md): Cessna 182E · Southwick, MA · Accident · No injuries · Limited investigation · Final report · May 13, 2013 · N817JT · Substantial damage
  > The partial loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any malfunctions or failures that would have precluded normal operation.
- [NTSB ERA12LA145](https://openairdocs.org/ntsb/ERA12LA145.md): Piper PA-24-180 · Brewster, MA · Accident · 2 fatal · Limited investigation · Final report · Jan 15, 2012 · N7648P · Substantial damage
  > The flight crew’s loss of airplane control.
- [NTSB ERA11FA094](https://openairdocs.org/ntsb/ERA11FA094.md): Piper PA-28-151 · Spencer, MA · Accident · 1 fatal · Field investigation · Final report · Dec 22, 2010 · N30ZZ · Substantial damage
  > The in-flight collision with a tree while returning to land for undetermined reasons.
- [NTSB ERA09LA523](https://openairdocs.org/ntsb/ERA09LA523.md): Cessna 208 · Sheffield, MA · Accident · No injuries · Limited investigation · Final report · Sep 15, 2009 · N336DN · Destroyed
  > A total loss of engine power due to a failure of the 1st stage sun gear output splines for unknown reasons, which resulted in a power turbine overspeed condition, with subsequent blade distress/release.
- [NTSB ERA09LA399](https://openairdocs.org/ntsb/ERA09LA399.md): Cessna 172N · Rochester, MA · Accident · No injuries · Limited investigation · Final report · Jul 12, 2009 · N4773G · Substantial damage
  > An engine vibration as reported by the pilot, for undetermined reasons.
- [NTSB MIA08LA041](https://openairdocs.org/ntsb/MIA08LA041.md): Grumman American AA-5B · Norwood, MA · Accident · No injuries · Limited investigation · Final report · Jan 17, 2008 · N414DJ · Substantial damage
  > The loss of engine power for undetermined reasons. *This report was modified on May 20, 2008.*

## 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."eventStateOrRegion" = 'MA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '05000000'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/05000000/cases?state=MA

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