# Final NTSB investigations: Walter M601 series

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 DCA22MA193](https://openairdocs.org/ntsb/DCA22MA193.md): Dehavilland DHC-3 · Freeland, WA · Accident · 10 fatal · Class 1 · Major · Final report · Sep 4, 2022 · N725TH · Destroyed
  > The in-flight unthreading of the clamp nut from the horizontal stabilizer trim actuator barrel due to a missing lock ring, which resulted in the horizontal stabilizer moving to an extreme trailing-edge-down position rendering the airplane’s pitch…
- [NTSB WPR22FA173](https://openairdocs.org/ntsb/WPR22FA173.md): Blue Side UP Comp AIR 8 SS52 · Grasmere, ID · Accident · 2 fatal · Class 3 · Field · Final report · May 8, 2022 · N801DT · Substantial damage
  > The pilot’s failure to maintain proper airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.
- [NTSB ERA13LA069](https://openairdocs.org/ntsb/ERA13LA069.md): Lawson J/Bowie R/Smith M CA-8 · Merritt Island, FL · Accident · Serious injuries · Limited investigation · Final report · Nov 28, 2012 · N155JD · Substantial damage
  > The pilot's improper decision to continue a cross-country flight as a primary control (aileron) system anomaly progressively worsened. Contributing to the accident was an aileron control system anomaly, the reason for which could not be determined because the…
- [NTSB CEN10CA510](https://openairdocs.org/ntsb/CEN10CA510.md): Grumman Acft ENG Cor-Schweizer G-164B · Basile, LA · Accident · No injuries · Data collection · Final report · Aug 27, 2010 · N63E · Substantial damage
  > The loss of directional control during landing due to failure of the right brake for undetermined reasons.
- [NTSB CEN10LA422](https://openairdocs.org/ntsb/CEN10LA422.md): Aero Commander S2R · McCook, NE · Accident · Serious injuries · Limited investigation · Final report · Jul 22, 2010 · N51AR · Substantial damage
  > The pilot's inadequate visual lookout during taxi, which resulted in a collision with a parked airplane.
- [NTSB DFW05LA116](https://openairdocs.org/ntsb/DFW05LA116.md): Grumman-Schweizer G-164B · Fenton, LA · Accident · No injuries · Limited investigation · Final report · May 1, 2005 · N63E · Substantial damage
  > The loss of engine power due to fuel starvation as a result of blockage of the firewall fuel filter with an unknown contaminant. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB ATL02LA099](https://openairdocs.org/ntsb/ATL02LA099.md): Aero Partners One CA 7SL · Merritt Island, FL · Accident · 1 fatal · Limited investigation · Final report · May 15, 2002 · N4075Z · Substantial damage
  > The pilot's inadequate in-flight planning/decision resulting in the misconfiguration of the flaps and the elevator trim setting. The misconfiguration resulted in an inadvertent pitch-up, loss of airspeed, stall and collision with the ground.
- [NTSB SEA00LA073](https://openairdocs.org/ntsb/SEA00LA073.md): Air Tractor AT-401 · Acequia, ID · Accident · Minor injuries · Limited investigation · Final report · Apr 14, 2000 · N1524H · Substantial damage
  > The pilot's failure to obtain/maintain adequate clearance with the irrigation system during initial climb. A contributing factor was the irrigation pivot.
- [NTSB FTW98LA194](https://openairdocs.org/ntsb/FTW98LA194.md): Grumman-Schweizer G-164B · Oberlin, LA · Accident · Serious injuries · Limited investigation · Final report · Apr 25, 1998 · N63E · Destroyed
  > The pilot's failure to maintain aircraft control. A factor was the gusty wind.
- [NTSB CHI98LA108](https://openairdocs.org/ntsb/CHI98LA108.md): Air Tractor AT-401 · Steele, MO · Accident · No injuries · Limited investigation · Final report · Mar 23, 1998 · N1524H · Substantial damage
  > the pilot failed to maintain an adequate visual lookout. A factor was the pile of gravel in the taxiway.

## 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."completionStatus" = 'Completed'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('64002', '64003'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=64002&status=final

---
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.