# NTSB investigations: Lycoming VO-435 series, 1992

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 MIA93LA027](https://openairdocs.org/ntsb/MIA93LA027.md): Bell 47-G5A · Belle Glade, FL · Accident · Minor injuries · Limited investigation · Final report · Dec 7, 1992 · N7925J · Substantial damage
  > The improper in flight decision of the pilot in command to attempt an agricultural turn with insufficient altitude to accomplish the maneuver. Contributing to the accident was the pilot's overconfidence in his abilities.
- [NTSB LAX92LA378](https://openairdocs.org/ntsb/LAX92LA378.md): Texas Helicopter OH-13E/M74 · Chandler, AZ · Accident · No injuries · Limited investigation · Final report · Sep 6, 1992 · N38099 · Substantial damage
  > The pilot's misjudging the performance and weight and balance data of the helicopter prior to departure. Contributing to the accident was a failure of the pilot to jettison the chemical load.
- [NTSB FTW92DPG15](https://openairdocs.org/ntsb/FTW92DPG15.md): Bell-Transworld 47G-2 · Birdeye, AR · Accident · No injuries · Final report · Aug 19, 1992 · N9238Z · Substantial damage
  > Fuel contamination. A factor was the high density altitude.
- [NTSB ATL92LA160](https://openairdocs.org/ntsb/ATL92LA160.md): Bell 47G-2 · Slocomb, AL · Accident · Serious injuries · Limited investigation · Final report · Aug 15, 1992 · N2880B · Substantial damage
  > A hard landing due to a power loss from fuel exhaustion. A factor in the accident was the lack of sustable terrain for the landing.
- [NTSB LAX92LA278](https://openairdocs.org/ntsb/LAX92LA278.md): Bell 47G5 · Mesa, AZ · Accident · Minor injuries · Limited investigation · Final report · Jul 4, 1992 · N4798R · Destroyed
  > A partial loss of engine power due to unknown reason (s). Factors in this accident were 1) low altitude when the partial loss of power occurred 2) low rotor RPM as a result of the loss of power, and 3) the pilot not being able to take remedial action due to…
- [NTSB MIA92T#A01](https://openairdocs.org/ntsb/MIA92T%23A01.md): Continental Copters Tomcat MK6B · Punta Gorda, FL · Accident · No injuries · Class 3 · Final report · Jun 25, 1992 · N17H · Substantial damage
- [NTSB LAX92LA262](https://openairdocs.org/ntsb/LAX92LA262.md): Bell 47-G5A · Pago Pago (Pacific Ocean) · Accident · Serious injuries · Limited investigation · Final report · Jun 21, 1992 · N211CB · Substantial damage
  > The pilot's inadequate preflight inspection in failing to ensure that all skid tiedowns were removed prior to the attempted takeoff.
- [NTSB FTW92LA159](https://openairdocs.org/ntsb/FTW92LA159.md): Bell 47G-2 · Danbury, TX · Accident · No injuries · Limited investigation · Final report · Jun 14, 1992 · N6746D · Substantial damage
  > The failure of the landing gear skid due to internal corrosion. A factor was the soft ground.
- [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 CHI92LA137](https://openairdocs.org/ntsb/CHI92LA137.md): Bell 47-G2A · Dousman, WI · Accident · Serious injuries · Limited investigation · Final report · Apr 30, 1992 · N52HB · Substantial damage
  > The in-flight loss of the swash plate drive link bolt which allowed the swash plate drive assembly to disconnect.

## 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") = 1992
  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=1992

---
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.