# NTSB investigations: Rolls-Royce 250-C30

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 WPR26FA121](https://openairdocs.org/ntsb/WPR26FA121.md): MD Helicopters 369FF · Mojave, CA · Accident · 1 fatal · Class 3 · Field · Preliminary report · Mar 9, 2026 · N530XX · Substantial damage
  > On March 9, 2026, about 1517 Pacific daylight time, an MD Helicopters 369FF, N530XX, was destroyed when it was involved in an accident near Mojave, California. The pilot was fatally injured. The helicopter was operated as a Title 14 Code of Federal…
- [NTSB WPR26FA074](https://openairdocs.org/ntsb/WPR26FA074.md): MD Helicopters 369FF · Superior, AZ · Accident · 4 fatal · Class 3 · Field · Preliminary report · Jan 2, 2026 · N3502P · Substantial damage
  > On January 2, 2026, at about 1100 mountain standard time, an MD Helicopters MD369FF helicopter, N3502P, was substantially damaged when it impacted a highline/slackline near Superior, Arizona. The pilot and three passengers were fatally injured. The helicopter…
- [NTSB CEN25LA098](https://openairdocs.org/ntsb/CEN25LA098.md): MD Helicopters 369FF · Cookville, MO · Accident · No injuries · Class 4 · Limited · Final report · Feb 16, 2025 · N6100N · Substantial damage
  > The pilot’s failure to maintain adequate clearance from a tree during the low altitude operation.
- [NTSB WPR24LA239](https://openairdocs.org/ntsb/WPR24LA239.md): Mcdonnell Douglas Helicopter 369 · Mesa, AZ · Accident · No injuries · Class 4 · Limited · Final report · Jul 9, 2024 · N540HH · Substantial damage
  > The pilot receiving instruction’s failure to maintain helicopter control during autorotation, which resulted in a dynamic rollover. Contributing to the accident was the delayed remedial action from the flight instructor.
- [NTSB WPR24LA028](https://openairdocs.org/ntsb/WPR24LA028.md): MD Helicopters 369FF · Mesa, AZ · Accident · No injuries · Class 4 · Limited · Final report · Nov 6, 2023 · N369FF · Substantial damage
  > The pilot’s failure to maintain a proper autorotation profile during deceleration that resulted in the tail rotor assembly impacting the ground.
- [NTSB CEN23LA389](https://openairdocs.org/ntsb/CEN23LA389.md): Mcdonnell Douglas Heli 530FF · Liberty Hill, TX · Accident · No injuries · Class 4 · Limited · Final report · Aug 31, 2023 · N530JR · Substantial damage
  > The pilot’s improper recovery from a practice autorotation resulting in a hard landing. Contributing to the accident was the instructor’s inadequate supervision of the pilot receiving instruction.
- [NTSB WPR22LA340](https://openairdocs.org/ntsb/WPR22LA340.md): Bell Helicopter Textron 206L-1 · Banning, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 10, 2022 · N242BH · Substantial damage
  > The improper attachment of the tail rotor drive shaft to the air conditioner drive pulley without a drive ring, which resulted in the failure of the hardware, a loss of tail rotor drive, and the loss of control of the helicopter followed by a hard landing and…
- [NTSB CEN22LA402](https://openairdocs.org/ntsb/CEN22LA402.md): MD Helicopters 369E · Pearland, TX · Accident · No injuries · Class 3 · Limited · Final report · Aug 30, 2022 · N1576F · Substantial damage
  > The pilot receiving instruction’s failure to maintain aircraft control, and the flight instructor’s delayed remedial action, which resulted in a hard landing.
- [NTSB WPR21LA183](https://openairdocs.org/ntsb/WPR21LA183.md): MD Helicopters 369FF · Mesa, AZ · Accident · No injuries · Class 4 · Limited · Final report · May 5, 2021 · N6068S · Substantial damage
  > A tail rotor blade strike to an undetermined object while practicing approaches to unimproved terrain.
- [NTSB GAA18CA378](https://openairdocs.org/ntsb/GAA18CA378.md): Mcdonnell Douglas Heli 369 · Yabucoa, PR · Accident · No injuries · Data collection · Final report · Jun 16, 2018 · N900FF · Substantial damage
  > The pilot's failure to maintain main rotor clearance from a fiber line while picking up a lineman.
- [NTSB WPR10FA085](https://openairdocs.org/ntsb/WPR10FA085.md): Eurocopter AS350BA (FX2) · Hana, Maui, HI · Accident · Serious injuries · Field investigation · Final report · Dec 16, 2009 · N87EW · Substantial damage
  > An uncommanded engine shutdown due to an improperly calibrated fuel control unit (FCU) and power turbine governor (PTG). Also causal was the operator’s inadequate maintenance practices and procedures that failed to properly assess and correct the FCU and PTG…
- [NTSB CHI06CA266](https://openairdocs.org/ntsb/CHI06CA266.md): MD Helicopters 369FF · Port Clinton, OH · Accident · No injuries · Data collection · Final report · Sep 16, 2006 · N530FF · Substantial damage
  > The pilot not maintaining clearance from the water during the survey flight. A factor was the low altitude the survey flight was flown at.

## 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 ('54023'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=54023

---
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.