# NTSB investigations: Lycoming HIO-360-D1A

A list on [Lycoming HIO-360-D1A](https://openairdocs.org/engine/lycoming-hio-360-d1a.md).

Matched to the registry by N-number and event date, newest first.

- [NTSB ANC26LA068](https://openairdocs.org/ntsb/ANC26LA068.md): Schweizer 269C · Skwentna, AK · Accident · Minor injuries · Class 4 · Limited · Investigation open · Jul 5, 2026 · N907AL · Substantial damage
- [NTSB ERA25LA144](https://openairdocs.org/ntsb/ERA25LA144.md): Schweizer 269C · Mogadore, OH · Accident · 1 fatal · Class 3 · Limited · Final report · Mar 14, 2025 · N262LH · Substantial damage
  > The pilot’s decision to fly at low altitude, at night, and over water, which resulted in the helicopter’s collision with power lines.
- [NTSB ERA22LA290](https://openairdocs.org/ntsb/ERA22LA290.md): Schweizer 300 C · Boonville, NC · Accident · No injuries · Class 4 · Limited · Final report · Jun 23, 2022 · N2158T · Substantial damage
  > The helicopter’s impact with a non-biological object, which resulted in substantial damage to a main rotor blade.
- [NTSB GAA19CA284](https://openairdocs.org/ntsb/GAA19CA284.md): Schweizer 269C · Riverside, CA · Accident · No injuries · Data collection · Final report · May 24, 2019 · N269P · Substantial damage
  > The student pilot's failure to maintain yaw control and the engine's rpm during transition to a hover, which resulted in hard landing.
- [NTSB WPR17LA093](https://openairdocs.org/ntsb/WPR17LA093.md): Schweizer 269C · Coolidge, AZ · Accident · Minor injuries · Limited investigation · Final report · Apr 27, 2017 · N521AR · Substantial damage
  > A partial loss of engine power due to separation of the throttle cable.
- [NTSB ERA17FA123](https://openairdocs.org/ntsb/ERA17FA123.md): Jordan Bruce C Pitts S2E · Apex, NC · Accident · 1 fatal · Field investigation · Final report · Mar 8, 2017 · N30BJ · Substantial damage
  > The pilot's failure to maintain airplane control during the final approach to the runway in gusting tailwind conditions, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall.
- [NTSB WPR15LA249](https://openairdocs.org/ntsb/WPR15LA249.md): Schweizer 269C - Undesignat · Mesa, AZ · Accident · Minor injuries · Limited investigation · Final report · Aug 23, 2015 · N315TV · Substantial damage
  > The disbondment of a main rotor damper, which resulted in the degradation of its damping action and led to excessive main rotor vibrations and oscillations that caused substantial damage to the helicopter in flight and led to a hard landing.
- [NTSB ERA13LA314](https://openairdocs.org/ntsb/ERA13LA314.md): Sikorsky 269C · Burnham, ME · Accident · Serious injuries · Limited investigation · Final report · Jul 3, 2013 · N888ZW · Substantial damage
  > The pilot's failure to maintain yaw control while operating out of ground effect at a low airspeed, which resulted in the loss of tail rotor effectiveness, an uncontrolled descent, and an in-flight collision with trees and terrain. Contributing to the…
- [NTSB CEN12CA431](https://openairdocs.org/ntsb/CEN12CA431.md): Schweizer 269C · Denton, TX · Accident · No injuries · Data collection · Final report · Jul 6, 2012 · N565LH · Substantial damage
  > The flight instructor and student pilot exceeded the helicopter's takeoff performance, which resulted in low rotor rpm and settling.
- [NTSB WPR12FA191](https://openairdocs.org/ntsb/WPR12FA191.md): Hughes 269C · Phoenix, AZ · Accident · Serious injuries · Field investigation · Final report · May 2, 2012 · N380TL · Substantial damage
  > A loss of tail rotor drive due to a fatigue failure of the main transmission pinion, which resulted in a loss of directional control during cruise flight.
- [NTSB CEN11LA606](https://openairdocs.org/ntsb/CEN11LA606.md): Schweizer Hughes 269C · Mt. Clemens, MI · Accident · 1 fatal · Limited investigation · Final report · Aug 21, 2011 · N7505B · 2 aircraft · No damage
  > The wing walker’s decision to release his grip of the airplane during an attempted aerial transfer from airplane to helicopter before both aircraft achieved the proper relative positioning for the transfer.
- [NTSB CEN10LA560](https://openairdocs.org/ntsb/CEN10LA560.md): Schweizer 269C · Schaumburg, IL · Accident · No injuries · Limited investigation · Final report · Sep 20, 2010 · N34LB · Substantial damage
  > The in-flight separation of the left aft cluster fitting assembly following the loss of torque on the lock nut due to a manufacturing defect.
- [NTSB CEN10LA408](https://openairdocs.org/ntsb/CEN10LA408.md): Schweizer 269C · Minden, NE · Accident · No injuries · Limited investigation · Final report · Jul 19, 2010 · N410JM · Substantial damage
  > The pilot's inadequate flare during an autorotation, which resulted in a hard landing and subsequent rollover.
- [NTSB LAX08CA138](https://openairdocs.org/ntsb/LAX08CA138.md): Schweizer 300C · Ogden, UT · Accident · Serious injuries · Data collection · Final report · Jun 2, 2008 · N1510A · Substantial damage
  > The pilot under instruction's encounter with a settling with power condition, and the flight instructor's failure to maintain adequate rotor rpm during the subsequent go-around. Also causal was the instructor pilot's delayed remedial action during the…
- [NTSB BFO89LA078](https://openairdocs.org/ntsb/BFO89LA078.md): Hughes 269C · Parkersburg, WV · Accident · Serious injuries · Limited investigation · Final report · Aug 31, 1989 · N58281 · Substantial damage
  > The pilot's inadvertent use (movement) of the collective control during engine operation before shutdown, and a subsequent lift-off, loss of control, roll over, and collision with the ground.
- [NTSB NYC81DHA05](https://openairdocs.org/ntsb/NYC81DHA05.md): Hughes 300C · Whitehouse, NJ · Accident · No injuries · Closed · Nov 25, 1980 · N58281 · 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_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c."mKey" = a.case_mkey
WHERE a.engine_model_code IN ('41893')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/engine/lycoming-hio-360-d1a/ntsb

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