# NTSB investigations: Lycoming 0-540F1 SERIE: 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 WPR22LA329](https://openairdocs.org/ntsb/WPR22LA329.md): Robinson Helicopter R44 Clipper 1 · Deadhorse, AK · Accident · No injuries · Class 4 · Limited · Final report · Aug 26, 2022 · N240RM · Substantial damage
  > The pilot's failure to maintain helicopter control during a descent, which resulted in a collision with terrain.
- [NTSB CEN21LA184](https://openairdocs.org/ntsb/CEN21LA184.md): Robinson Helicopter R44 · Johnson, KS · Accident · No injuries · Class 3 · Limited · Final report · Apr 5, 2021 · N8348X · Substantial damage
  > The pilot's inadequate pedal application during a transition to hover, which resulted in a loss of yaw control and a subsequent impact with terrain.
- [NTSB WPR18FA077](https://openairdocs.org/ntsb/WPR18FA077.md): Robinson Helicopter R44 · Newport Beach, CA · Accident · 3 fatal · Field investigation · Final report · Jan 30, 2018 · N7530R · Destroyed
  > The pilot's failure to perform weight and balance calculations before departing on the flight, which resulted in his operation of the helicopter outside of its published weight and balance limitations and a subsequent loss of control shortly after takeoff.
- [NTSB GAA16CA075](https://openairdocs.org/ntsb/GAA16CA075.md): Robinson Helicopter R44 · West Palm Beach, FL · Accident · No injuries · Data collection · Final report · Dec 9, 2015 · N4427H · Substantial damage
  > The student pilot's failure to maintain directional control during the landing, which resulted in a horizontal rotation of the helicopter, and abnormal runway contact.
- [NTSB CEN11LA648](https://openairdocs.org/ntsb/CEN11LA648.md): Robinson Helicopter R44 · Ocate, NM · Accident · Serious injuries · Limited investigation · Final report · Sep 15, 2011 · N828PM · Substantial damage
  > The pilot’s failure to apply carburetor heat, which resulted in the formation of carburetor ice and a partial loss of engine power.
- [NTSB MIA08FA044](https://openairdocs.org/ntsb/MIA08FA044.md): Robinson R44 · Ochopee, FL · Accident · 2 fatal · Field investigation · Final report · Jan 22, 2008 · N18HB · Substantial damage
  > The pilot's failure to maintain aircraft control while maneuvering. Contributing to the accident were a tailwind condition and the pilot's inadequate in-flight planning/decision.

## 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 ('41531')
    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=41531

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