# NTSB investigations: Lycoming AEIO-540 series: Loss of control in flight

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 ERA25FA231](https://openairdocs.org/ntsb/ERA25FA231.md): Pitts S2 · Broadway, NC · Accident · 2 fatal · Class 3 · Field · Preliminary report · Jun 20, 2025 · N79AV · Substantial damage
  > On June 20, 2025, at 0900 eastern daylight time, a Pitts Aerobatics S-2B, N79AV, was destroyed when it was involved in an accident near Broadway, North Carolina. The private pilot and the commercial pilot-rated passenger were fatally injured. The airplane was…
- [NTSB ERA24FA391](https://openairdocs.org/ntsb/ERA24FA391.md): Aviat S-1-11B · Chapmansboro, TN · Accident · 1 fatal · Class 3 · Field · Final report · Sep 23, 2024 · N5111B · Substantial damage
  > The pilot’s loss of airplane control while performing an aerobatic maneuver, which resulted in the airplane entering an inverted flat spin at an altitude too low for recovery.
- [NTSB GAA22WA259](https://openairdocs.org/ntsb/GAA22WA259.md): MXR Technologies MXS · Hajdúszoboszló, Hungary · Accident · No injuries · Class 5 · Foreign · Jul 16, 2022 · N540XX · Substantial damage
- [NTSB WPR22LA153](https://openairdocs.org/ntsb/WPR22LA153.md): Stoddard Hamilton Glasair Super II · Oxnard, CA · Accident · No injuries · Class 4 · Limited · Final report · Apr 16, 2022 · N90YY · Substantial damage
  > The pilot’s failure to maintain airplane control while on final approach, which resulted in a collision with a runway approach light.
- [NTSB CEN19FA270](https://openairdocs.org/ntsb/CEN19FA270.md): Pitts S2 · New Orleans, LA · Accident · 2 fatal · Class 3 · Field · Final report · Aug 16, 2019 · N600DF · Destroyed
  > A loss of control for undetermined reasons.
- [NTSB CEN15FA282](https://openairdocs.org/ntsb/CEN15FA282.md): Christen Industries Pitts S-2B · Cameron, MO · Accident · 1 fatal · Field investigation · Final report · Jun 27, 2015 · N877UP · Substantial damage
  > The pilot’s failure to maintain airplane control during a low-level aerobatic flight maneuver.
- [NTSB CEN14CA533](https://openairdocs.org/ntsb/CEN14CA533.md): Aviat Pitts S 2B · Grants, NM · Accident · No injuries · Data collection · Final report · May 31, 2014 · N9YH · Substantial damage
  > The pilot's failure to maintain control of the airplane during landing in gusty wind conditions.
- [NTSB WPR14LA065](https://openairdocs.org/ntsb/WPR14LA065.md): Aviat S 2C · Chandler, AZ · Accident · No injuries · Limited investigation · Final report · Dec 9, 2013 · N44HV · Substantial damage
  > The pilot’s failure to maintain airplane control during landing, which resulted in impact with a runway identifier sign, and the flight instructor’s delayed remedial action to take the controls and initiate a go-around.
- [NTSB WPR11LA458](https://openairdocs.org/ntsb/WPR11LA458.md): Aviat Pitts S-2B · Redlands, CA · Accident · Serious injuries · Limited investigation · Final report · Sep 19, 2011 · N46BT · Substantial damage
  > The pilot’s failure to maintain airspeed while maneuvering, which resulted in an aerodynamic stall. Contributing to the accident was the pilot’s impairment from alcohol.
- [NTSB DEN08FA100](https://openairdocs.org/ntsb/DEN08FA100.md): Extra Flugzeugbau EA 300/L · Gothenburg, NE · Accident · 1 fatal · Field investigation · Final report · Jun 5, 2008 · N12XT · Destroyed
  > The pilot's failure to maintain aircraft control after encountering instrument meteorological conditions. Contributing to the accident were the pilot's recent usage of Marihuana, his impaired judgement and decision making, and the low visibility weather…
- [NTSB LAX08FA134](https://openairdocs.org/ntsb/LAX08FA134.md): Extra Flugzeugproduktions-GMBH EA-300/L · Queen Creek, AZ · Accident · 2 fatal · Field investigation · Final report · May 9, 2008 · N133EE · Substantial damage
  > The loss of aircraft control due to an undetermined rudder malfunction.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41568')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '240'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/240/cases?engine=41568

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