# NTSB investigations: Lycoming VO-435 series, MA

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 NYC95LA100](https://openairdocs.org/ntsb/NYC95LA100.md): Bell 47G-5A · Middleboro, MA · Accident · Minor injuries · Limited investigation · Final report · May 4, 1995 · N444GW · Substantial damage
  > the pilot's failure to maintain airspeed during a low altitude aerial application turn, which resulted in inadvertent settling with power and the subsequent collision with the terrain.
- [NTSB NYC94LA110](https://openairdocs.org/ntsb/NYC94LA110.md): Bell 47-G5 · Wareham, MA · Accident · Minor injuries · Limited investigation · Final report · Jul 2, 1994 · N59400 · Substantial damage
  > The pilot's inadequate inflight planning which resulted in fuel exhaustion and the loss of engine power.
- [NTSB NYC94LA050](https://openairdocs.org/ntsb/NYC94LA050.md): Bell 47G-5 · Plymouth, MA · Accident · Serious injuries · Limited investigation · Final report · Mar 1, 1994 · N7043J · Substantial damage
  > The pilot's failure to maintain adequate clearance of the fuel truck from the aircraft, which resulted in the main rotor striking the fuel hose and truck during refueling operation. A factor was the pilot's failure to follow company policy pertaining to the…
- [NTSB BFO92LA062](https://openairdocs.org/ntsb/BFO92LA062.md): Continental Copters MK6B · Middleboro, MA · Accident · No injuries · Limited investigation · Final report · May 14, 1992 · N9012T · Substantial damage
  > The pilot's failure to release a tie down strap from the helicopter's skid during the preflight.
- [NTSB NYC90LA122](https://openairdocs.org/ntsb/NYC90LA122.md): Bell 47G-3B1 · Becket, MA · Accident · No injuries · Limited investigation · Final report · May 31, 1990 · N39268 · Substantial damage
  > A power loss due to oil starvation, after maintenance personnel failed to comply with Lycoming directives during the engine overhaul. Factors related to the accident were: improper adjustment of the engine oil pressure by maintenance personnel and unsuitable…

## 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41525'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41525&state=MA

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.