# NTSB investigations: Lycoming VO-435 series, 1994

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 CHI95LA003](https://openairdocs.org/ntsb/CHI95LA003.md): Bell 47G2 · Decatur, IL · Accident · Minor injuries · Limited investigation · Final report · Oct 3, 1994 · N5193B · Substantial damage
  > the failure of the roller springs in the freewheeling unit of the transmission which caused the unit to disengage.
- [NTSB LAX94LA386](https://openairdocs.org/ntsb/LAX94LA386.md): Bell 47G-5 · Pacific Ocean (Pacific Ocean) · Accident · 2 fatal · Limited investigation · Final report · Sep 17, 1994 · N2280W · Substantial damage
  > an in-flight collision with the water for undetermined reasons.
- [NTSB LAX94LA303](https://openairdocs.org/ntsb/LAX94LA303.md): Bell 47G-2A · Scottsdale, AZ · Accident · No injuries · Limited investigation · Final report · Jul 30, 1994 · N6749D · Substantial damage
  > The pilot's failure to refuel appropriately, the altitude and airspeed at the time the engine stoppage occurred were factors in the accident.
- [NTSB CHI94T#A02](https://openairdocs.org/ntsb/CHI94T%23A02.md): Continental Copters MK 5 Tomcat · Minot, ND · Accident · No injuries · Class 3 · Final report · Jul 5, 1994 · N9043T · Substantial damage
- [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 FTW94FA158](https://openairdocs.org/ntsb/FTW94FA158.md): Bell 47G-2 · Tulsa, OK · Accident · 1 fatal · Field investigation · Final report · May 16, 1994 · N47GY · Destroyed
  > In flight loss of control due to the pilot's improper use of the cyclic and collective controls when he maneuvered abruptly to avoid colliding with a flock of birds. Factors were the birds and the inflight separation of the left synchronized elevator.
- [NTSB LAX94LA199](https://openairdocs.org/ntsb/LAX94LA199.md): Continental Copters Tomcat MK5A · Brawley, CA · Accident · 1 fatal · Limited investigation · Final report · Apr 22, 1994 · N9061T · Destroyed
  > Failure of the pilot to maintain sufficient altitude, while maneuvering to land after completing aerial application. Factors related to the accident were: darkness and the lack of visual cues for the pilot to detect the obstruction (power line).
- [NTSB CHI94FA330](https://openairdocs.org/ntsb/CHI94FA330.md): Bell 47G-5A · Wisconsin Rpds, WI · Accident · 1 fatal · Field investigation · Final report · Mar 22, 1994 · N2991W · Destroyed
  > Undetermined.
- [NTSB CHI94LA133](https://openairdocs.org/ntsb/CHI94LA133.md): Bell 47-62 · Aurora, MO · Accident · No injuries · Limited investigation · Final report · Mar 5, 1994 · N6711D · Substantial damage
  > The dual students inadequate flare and the pilot in command's (flight instructor) delayed remedial action.
- [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 SEA94LA064](https://openairdocs.org/ntsb/SEA94LA064.md): Hiller-Soloy H-23D · Seaside, OR · Accident · Minor injuries · Limited investigation · Final report · Feb 23, 1994 · N62413 · Destroyed
  > The pilot's improper use of flight controls resulting in settling with power.

## 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") = 1994
  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&year=1994

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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.