# NTSB investigations: Mcdonnell Douglas Helicopter 369E: Hard landing

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 CEN24LA377](https://openairdocs.org/ntsb/CEN24LA377.md): Mcdonnell Douglas Helicopter 369E · Manvel, TX · Accident · No injuries · Class 4 · Limited · Final report · Sep 30, 2024 · N8372F · Substantial damage
  > The pilot’s improper recovery from a practice autorotation which resulted in a hard landing. Contributing to the accident was the instructor’s inadequate supervision of the pilot receiving instruction.
- [NTSB WPR24LA243](https://openairdocs.org/ntsb/WPR24LA243.md): Mcdonnell Douglas Helicopter 369E · Cottonwood, AZ · Accident · No injuries · Class 3 · Limited · Final report · Jul 13, 2024 · N473E · Substantial damage
  > The pilot’s low-speed, high-power maneuvering in high density altitude and near maximum gross weight, which resulted in an uncommanded right yaw due to a loss of tail rotor effectiveness and a subsequent hard landing.
- [NTSB CEN23LA404](https://openairdocs.org/ntsb/CEN23LA404.md): Mcdonnell Douglas Helicopter 369E · Arcola, TX · Accident · No injuries · Class 4 · Limited · Final report · Sep 7, 2023 · N8372F · Substantial damage
  > The instructor’s failure to re-apply engine power during a power recovery after a practice autorotation which resulted in a hard landing.
- [NTSB CEN22LA063](https://openairdocs.org/ntsb/CEN22LA063.md): Mcdonnell Douglas Helicopter 369E · St. Louis, MO · Accident · No injuries · Class 4 · Limited · Final report · Dec 2, 2021 · N911PH · Substantial damage
  > The pilot’s failure to apply power during the recovery procedure for the practice autorotation, which resulted in a hard landing.
- [NTSB WPR19LA205](https://openairdocs.org/ntsb/WPR19LA205.md): Md Helicopter 369 · Eugene, OR · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 28, 2019 · N438RC · Substantial damage
  > The left seat pilot’s failure to account for environmental conditions conducive to a loss of tail rotor effectiveness, which resulted in a loss of tail rotor effectiveness and subsequent loss of control.
- [NTSB WPR19LA087](https://openairdocs.org/ntsb/WPR19LA087.md): MD Helicopter 369 · Kukuihaele, HI · Accident · Serious injuries · Class 3 · Limited · Final report · Feb 21, 2019 · N506PH · Substantial damage
  > The partial loss of engine power due to corrosion in the engine bleed valve due to wash solution intrusion. Contributing to the accident was the installation of a bushing manufactured to incorrect dimensions in the bleed valve, and the uneven terrain at the…
- [NTSB WPR13GA374](https://openairdocs.org/ntsb/WPR13GA374.md): Mcdonnell Douglas Helicopter 369E · Burns, OR · Accident · No injuries · Final report · Aug 12, 2013 · N62PJ · Substantial damage
  > The total loss of engine power during cruise flight due to the separation of one of the 4th-stage turbine wheel blades due to low-cycle fatigue cracking that had progressed to high-cycle fatigue cracking, which ultimately led to the overload failure of the…
- [NTSB ERA10LA023](https://openairdocs.org/ntsb/ERA10LA023.md): Mcdonnell Douglas Helicopter 369E · Winnsboro, SC · Accident · No injuries · Limited investigation · Final report · Oct 19, 2009 · N502SL · Substantial damage
  > The flight instructor's failure to monitor the simulated emergency procedure, resulting in a hard landing. Contributing to the accident was the intentional throttle application by one of the flightcrew.

## 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.aircraft_model_code IN ('3027369')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '092' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/092/sequence?model=3027369

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