# NTSB investigations: Beech S35, CO

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 CEN21FA007](https://openairdocs.org/ntsb/CEN21FA007.md): Beech S35 · Telluride, CO · Accident · 2 fatal · Class 3 · Field · Final report · Oct 5, 2020 · N4444K · Substantial damage
  > The pilot’s loss of control during the climb to cruise flight resulting in the airplane’s impact with terrain. Contributing to the accident was the pilot’s decision to not climb to a higher altitude before proceeding over high terrain.
- [NTSB CEN15FA424](https://openairdocs.org/ntsb/CEN15FA424.md): Beech S35 · Pagosa Springs, CO · Accident · 2 fatal · Field investigation · Final report · Sep 25, 2015 · N193Q · Destroyed
  > Improper engine assembly by unknown maintenance personnel, which resulted in the failure of the No. 6 connecting rod due to oil starvation from the shifting of the crankshaft's No. 4 main bearing.
- [NTSB DEN05LA088](https://openairdocs.org/ntsb/DEN05LA088.md): Beech S35 · Colorado Spring, CO · Accident · No injuries · Limited investigation · Final report · Jun 11, 2005 · N2FY · Substantial damage
  > the flight instructor and pilot's improper decision to continue the attempted high altitude takeoff when Vy airspeed was not obtained, and failure to abort the takeoff which resulted in an off-field landing and subsequent impact with terrain. A contributing…
- [NTSB DEN05LA086](https://openairdocs.org/ntsb/DEN05LA086.md): Beech S35 · Broomfield, CO · Accident · Minor injuries · Limited investigation · Final report · Jun 7, 2005 · N9TT · Substantial damage
  > the pilot's failure to maintain adequate airspeed which resulted in a stall, and his failure to abort the takeoff. The loss of power for undetermined reasons is a contributing factor.
- [NTSB DEN03LA107](https://openairdocs.org/ntsb/DEN03LA107.md): Beech S35 · Colorado Spring, CO · Accident · No injuries · Limited investigation · Final report · Jun 14, 2003 · N5751K · Substantial damage
  > the pilot's inadequate in-flight planning/decision in which he mismanaged his fuel supply by failing to switch tanks resulting in fuel starvation and the loss of engine power. A contributing factor was the pilot's diverted attention.
- [NTSB DEN00FA175](https://openairdocs.org/ntsb/DEN00FA175.md): Beech S35 · Longmont, CO · Accident · 2 fatal · Field investigation · Final report · Sep 17, 2000 · N711HZ · Destroyed
  > The pilot/passenger's failure to maintain aircraft control, and the pilot in command's inadequate supervision of the flight. A factor was the pilot/passenger's lack of experience in aircraft type.
- [NTSB DEN89IA028](https://openairdocs.org/ntsb/DEN89IA028.md): Beech S-35 · Matheson, CO · Incident · No injuries · Incident investigation · Final report · Nov 3, 1988 · N977KM · Minor damage
  > The private plt and a friend were enroute for a hunting trip. Thirty miles east of a refueling stop, the pilot heard a loud knock. Oil covered the windscreen and the engine seized. The plt looked out the side window vent to select a forced landing area. A…
- [NTSB DEN78FA031](https://openairdocs.org/ntsb/DEN78FA031.md): Beech S35 · Aurora, CO · Accident · 3 fatal · Closed · Mar 10, 1978 · N5818S · Substantial damage
- [NTSB DEN68D0127](https://openairdocs.org/ntsb/DEN68D0127.md): Beech S35 · Antonito, CO · Accident · No injuries · Closed · Oct 24, 1967 · N8933U · Substantial damage

## 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" = 'CO' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1151532'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1151532&state=CO

---
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.