# NTSB investigations: Lycoming AEIO-360 series: Loss of control on ground

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 ERA25LA381](https://openairdocs.org/ntsb/ERA25LA381.md): Pitts S-1T · Danbury, CT · Accident · No injuries · Class 4 · Limited · Final report · Sep 2, 2025 · N742MA · Substantial damage
  > The pilot’s failure to maintain directional control during the landing rollout, which resulted in a ground loop.
- [NTSB CEN25LA024](https://openairdocs.org/ntsb/CEN25LA024.md): Pitts S-2A · Stoughton, WI · Accident · No injuries · Class 4 · Limited · Final report · Oct 19, 2024 · N11JC · Substantial damage
  > The pilot’s failure to maintain directional control during landing.
- [NTSB CEN23LA121](https://openairdocs.org/ntsb/CEN23LA121.md): American Champion 8KCAB · Oklahoma City, OK · Accident · No injuries · Class 4 · Limited · Final report · Feb 20, 2023 · N303SB · Substantial damage
  > The pilot’s failure to maintain directional control during the landing, that resulted in a runway excursion, and an impact with an obstacle.
- [NTSB CEN22LA302](https://openairdocs.org/ntsb/CEN22LA302.md): Pitts S1 · Sturgeon Bay, WI · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 1, 2022 · N23RS · Substantial damage
  > The pilot’s failure to maintain airplane control during landing, which resulted in a runway excursion and nose over. Contributing to the accident was the pilot’s inadequate preflight inspection and the pilot’s lack of flight control system knowledge.
- [NTSB CEN19TA310](https://openairdocs.org/ntsb/CEN19TA310.md): Champion 7KCAB · Winnsboro, LA · Accident · No injuries · Class 3 · Final report · Sep 7, 2019 · N4136Y · Substantial damage
  > The pilot's failure to maintain directional control during a crosswind landing, which resulted in an impact with a tree.
- [NTSB ERA18LA023](https://openairdocs.org/ntsb/ERA18LA023.md): Great Lakes 2T1A · Montague, MA · Accident · No injuries · Limited investigation · Final report · Nov 2, 2017 · N3512L · Substantial damage
  > The pilot’s failure to maintain directional control during the attempted takeoff, which resulted in a runway excursion.
- [NTSB GAA17CA181](https://openairdocs.org/ntsb/GAA17CA181.md): Aerotek Pitts S-2A · West Palm Beach, FL · Accident · No injuries · Data collection · Final report · Mar 8, 2017 · N1230S · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll in crosswind conditions.
- [NTSB GAA17CA125](https://openairdocs.org/ntsb/GAA17CA125.md): Great Lakes 2T1A · Canon City, CO · Accident · No injuries · Data collection · Final report · Jan 28, 2017 · N16GL · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll. Contributing to the accident was the pilot’s unstabilized approach.
- [NTSB GAA16CA500](https://openairdocs.org/ntsb/GAA16CA500.md): Aerotek Pitts Special · Reno, NV · Accident · No injuries · Data collection · Final report · Sep 17, 2016 · N91JW · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll, which resulted in a ground loop.
- [NTSB GAA16CA368](https://openairdocs.org/ntsb/GAA16CA368.md): Avions Mudry ET Cie CAP · Spring Branch, TX · Accident · No injuries · Data collection · Final report · Jul 5, 2016 · N42415 · Substantial damage
  > The flight instructor's inability to maintain directional control during the landing roll as a result of the malfunctioning brake master cylinder.
- [NTSB CEN14LA493](https://openairdocs.org/ntsb/CEN14LA493.md): Davis Benny Christen Eagle II · Vinton, IA · Accident · No injuries · Limited investigation · Final report · Sep 3, 2014 · N229HP · Substantial damage
  > The pilot's loss of directional control during landing after the airplane encountered uneven pavement at the intersection with a crossing runway.
- [NTSB ERA14LA005](https://openairdocs.org/ntsb/ERA14LA005.md): Aerotek Pitts S 1T · Punta Gorda, FL · Accident · No injuries · Limited investigation · Final report · Oct 19, 2013 · N53CG · Substantial damage
  > The pilot’s loss of directional control during landing. Contributing to the accident was the pilot’s decision to operate the airplane with known ergonomic restrictions due to his size.
- [NTSB ERA11CA488](https://openairdocs.org/ntsb/ERA11CA488.md): American Champion 8KCAB · Leesburg, VA · Accident · No injuries · Data collection · Final report · Sep 10, 2011 · N878AC · Substantial damage
  > The pilot did not follow the engine start checklist.
- [NTSB CEN11CA485](https://openairdocs.org/ntsb/CEN11CA485.md): Bellanca 8KCAB · Greeley, CO · Accident · No injuries · Data collection · Final report · Jul 16, 2011 · N731JD · Substantial damage
  > The pilot's loss of directional control during landing, resulting in a runway excursion.
- [NTSB WPR10CA282](https://openairdocs.org/ntsb/WPR10CA282.md): Great Lakes 2T-1A-2 · Chandler, AZ · Accident · No injuries · Data collection · Final report · May 31, 2010 · N6075L · Substantial damage
  > The pilot’s failure to maintain directional control and the flight instructor's inadequate remedial action during the landing roll, which resulted in a ground loop.
- [NTSB CEN09CA450](https://openairdocs.org/ntsb/CEN09CA450.md): Bellanca 8KCAB · Waring, TX · Accident · No injuries · Data collection · Final report · Jul 18, 2009 · N2991D · Substantial damage
  > The pilot's failure to maintain directional control during landing roll-out. Contributing to the accident was the worn left main landing gear brake.
- [NTSB CEN09CA421](https://openairdocs.org/ntsb/CEN09CA421.md): Pitts S-2A · Springfield, IL · Accident · No injuries · Data collection · Final report · Jul 8, 2009 · N18BT · Substantial damage
  > The pilot's inability to maintain directional control while landing due to the unintentional obstruction of the rudder by the passenger.

## 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 ('41522', '41601')
    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" = '230'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/230/cases?engine=41522

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