# NTSB investigations, CA: Inflight upset

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 WPR25LA089](https://openairdocs.org/ntsb/WPR25LA089.md): Lockheed C-130A · Daggett, CA · Accident · Serious injuries · Class 4 · Limited · Final report · Feb 1, 2025 · N466TM · No damage
  > An inflight upset due to an improperly secured load that resulted in serious injuries.
- [NTSB WPR22LA284](https://openairdocs.org/ntsb/WPR22LA284.md): Bombardier BD-100-1A10 · San Francisco, CA · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 27, 2022 · N557XJ · No damage
  > An inflight upset resulting in serious injury to the cabin attendant following an autopilot disconnect for reasons that could not be determined based on the available information.
- [NTSB WPR19LA135](https://openairdocs.org/ntsb/WPR19LA135.md): Bell 206 · Oxnard, CA · Accident · Serious injuries · Class 3 · Limited · Final report · May 4, 2019 · N49643 · Substantial damage
  > The pilot’s inability to maintain control of the helicopter while maneuvering at a low altitude due to reasons that could not be determined based on available evidence.
- [NTSB WPR18FA088](https://openairdocs.org/ntsb/WPR18FA088.md): Hastings Thomas G Cirrus VK 30 · Agua Dulce, CA · Accident · 4 fatal · Field investigation · Final report · Feb 11, 2018 · N52TH · Substantial damage
  > The driveshaft fracture due to overstress loading and rotational bending as a result of the under-torqued nuts on the elastomeric couplings backing off and the subsequent in-flight separation of the horizontal fairing due to contact with the separated end of…
- [NTSB WPR17IA086](https://openairdocs.org/ntsb/WPR17IA086.md): Beech A36TC · Livermore, CA · Incident · No injuries · Class 3 · Incident · Final report · Apr 10, 2017 · N755R · Minor damage
  > A mistrim condition while the autopilot was engaged for reasons that could not be determined based on available evidence, and the pilot’s subsequent failure to confirm the command bar status before disengaging the autopilot. Contributing to the accident were…
- [NTSB WPR13LA233](https://openairdocs.org/ntsb/WPR13LA233.md): Schweizer G-164D · Butte City, CA · Accident · Minor injuries · Limited investigation · Final report · May 16, 2013 · N83110 · Substantial damage
  > The pilot's failure to maintain airplane control after an encounter with wake turbulence while maneuvering at low altitude. Contributing to the accident was the pilot’s fatigue due to extended hours of wakefulness and high workload.
- [NTSB WPR12FA203](https://openairdocs.org/ntsb/WPR12FA203.md): M Squared Breese · Whitewater, CA · Accident · 1 fatal · Field investigation · Final report · May 13, 2012 · N51336 · Substantial damage
  > The pilot’s decision to fly at low altitude in mountainous terrain in the presence of strong wind and turbulence, which resulted in an aerodynamic upset at too low an altitude for recovery.
- [NTSB WPR11FA239](https://openairdocs.org/ntsb/WPR11FA239.md): Brantly B-2B · Weaverville, CA · Accident · 1 fatal · Field investigation · Final report · May 27, 2011 · N222DW · Substantial damage
  > The student pilot's decision to fly in windy conditions that exceeded his capabilities, which resulted in his subsequent loss of helicopter control. Contributing to the accident was his lack of flight experience in the accident helicopter.
- [NTSB WPR11IA213](https://openairdocs.org/ntsb/WPR11IA213.md): Cessna 421B · Truckee, CA · Incident · No injuries · Incident investigation · Final report · May 2, 2011 · N270CS · No damage
  > Fatigue failure of the right flap extend cable during the landing approach.
- [NTSB WPR11FA059](https://openairdocs.org/ntsb/WPR11FA059.md): Mooney M20R · Hollister, CA · Accident · 1 fatal · Field investigation · Final report · Nov 25, 2010 · VH-PPA · Substantial damage
  > The pilot did not ensure the airplane was loaded within its weight and balance envelope, which resulted in longitudinal instability and a loss of aircraft control during the initial climb.

## 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" = 'CA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '271' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/271/sequence?state=CA

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