# NTSB investigations: Lycoming HIO-360 series, PA

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 ERA26LA122](https://openairdocs.org/ntsb/ERA26LA122.md): Hughes 269A · Gettysburg, PA · Accident · Minor injuries · Class 4 · Limited · Final report · Feb 21, 2026 · N1020S · Substantial damage
  > The flight instructor’s failure to identify the excess power required to lift off from soft and muddy ground, which resulted in a loss of control and subsequent collision with a hangar during takeoff.
- [NTSB ERA22LA210](https://openairdocs.org/ntsb/ERA22LA210.md): Henderson Clifford S Super Bear CSH-1 · Indiana, PA · Accident · No injuries · Class 4 · Limited · Final report · Apr 5, 2022 · N371M · Substantial damage
  > The pilot's loss of directional control while landing, which resulted in a ground loop.
- [NTSB ERA21LA357](https://openairdocs.org/ntsb/ERA21LA357.md): Enstrom F28 · Toughkenamon, PA · Accident · No injuries · Class 4 · Limited · Final report · Sep 8, 2021 · N51789 · Substantial damage
  > The pilot’s failure to maintain control of the helicopter during an out-of-ground effect hover in a gusty wind, due to loss of tail rotor effectiveness.
- [NTSB GAA19CA514](https://openairdocs.org/ntsb/GAA19CA514.md): Hughes 269A · Shamokin, PA · Accident · No injuries · Data collection · Final report · Aug 25, 2019 · N653CH · Substantial damage
  > The pilot's improper landing flare during an autorotation, which resulted in a hard landing. Contributing to the accident was a loss of engine power for reasons that could not be determined because postaccident examination revealed no evidence of any…
- [NTSB ERA13LA433](https://openairdocs.org/ntsb/ERA13LA433.md): Enstrom F-28C · Bloomsburg, PA · Accident · 1 fatal · Limited investigation · Final report · Sep 27, 2013 · N631DP · Minor damage
  > The relieved pilot’s failure to maintain clearance from the rotating main rotor blades after he exited the helicopter.
- [NTSB ERA12CA357](https://openairdocs.org/ntsb/ERA12CA357.md): Hughes TH-55 · Pittsfield, PA · Accident · No injuries · Data collection · Final report · May 19, 2012 · N74914 · Substantial damage
  > The student pilot's failure to maintain helicopter control during an encounter with loss of tail rotor effectiveness.
- [NTSB NYC06CA008](https://openairdocs.org/ntsb/NYC06CA008.md): Enstrom F-28C · Smoketown, PA · Accident · No injuries · Data collection · Final report · Oct 11, 2005 · N51772 · Substantial damage
  > The student pilot's failure to maintain aircraft control while performing pedal turns at a hover, resulting in a collision with terrain.
- [NTSB IAD04LA013](https://openairdocs.org/ntsb/IAD04LA013.md): Schweizer 269C · Media, PA · Accident · No injuries · Limited investigation · Final report · Feb 28, 2004 · N75070 · Substantial damage
  > A lack of previous lubrication to the tail rotor drive shaft forward fitting teeth, which resulted in their gradual wear, the eventual slippage of the shaft, and the subsequent loss of tailrotor thrust and forced landing.
- [NTSB NYC98FA018](https://openairdocs.org/ntsb/NYC98FA018.md): Enstrom F-28C · Fairview, PA · Accident · No injuries · Field investigation · Final report · Oct 24, 1997 · N1944J · Substantial damage
  > inadequate maintenance, which led to detonation and a melted piston, and subsequent power loss.
- [NTSB NYC83LA206](https://openairdocs.org/ntsb/NYC83LA206.md): Hughes 269C · Spring House, PA · Accident · No injuries · Limited investigation · Final report · Aug 10, 1983 · N1093Y · Substantial damage
  > The helicopter rolled over during a practice demonstration autorotation landing. The CFI was at the controls with the student following through. According to the instructor the student overrode the controls just prior to touchdown with too much cyclic. The…
- [NTSB NYC79FGM40](https://openairdocs.org/ntsb/NYC79FGM40.md): Hughes 300C · Barnesboro, PA · Accident · No injuries · Closed · Jul 30, 1979 · N8641F · Destroyed
- [NTSB NYC78FA088](https://openairdocs.org/ntsb/NYC78FA088.md): Hughes 269C · Derry, PA · Accident · No injuries · Closed · Sep 4, 1978 · N7466F · Substantial damage
- [NTSB NYC73AN134](https://openairdocs.org/ntsb/NYC73AN134.md): Enstrom F-28A · Philadelphia, PA · Accident · No injuries · Closed · Apr 17, 1973 · N9562 · 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" = 'PA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41524'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41524&state=PA

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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.