# NTSB investigations: Aircraft propeller/rotor, general

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 ERA24LA276](https://openairdocs.org/ntsb/ERA24LA276.md): Snyder Searey · New Ipswich, NH · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 25, 2024 · N453TS · Substantial damage
  > A total loss of engine power due to the exhaust muffler and tailpipe assembly separating from its attach points and impacting the propeller.
- [NTSB CEN18FA258](https://openairdocs.org/ntsb/CEN18FA258.md): Bell 47G · Arlington, IN · Accident · 1 fatal · Field investigation · Final report · Jul 6, 2018 · N96195 · Substantial damage
  > The inflight separation of the upper transmission due to the thread failure of transmission housing attachment bolts, which were installed on the helicopter with thread damage from a prior installation.
- [NTSB WPR17LA121](https://openairdocs.org/ntsb/WPR17LA121.md): Bob Frederick Titan T-51 · Goodyear, AZ · Accident · No injuries · Limited investigation · Final report · Jun 4, 2017 · N51FB · Substantial damage
  > Failure of the propeller speed reduction gearbox input drive gear during the airplane’s initial climb for reasons that could not be determined due to extensive damage.
- [NTSB GAA15CA196](https://openairdocs.org/ntsb/GAA15CA196.md): Robinson Helicopter R44 II · Forest City, SD · Accident · No injuries · Data collection · Final report · Jul 2, 2015 · N824DK · Substantial damage
  > The pilot's failure to monitor the flight environment for adequate terrain/obstacle clearance during takeoff, which resulted in the inflight collision with power transmission line wires.
- [NTSB CEN13LA524](https://openairdocs.org/ntsb/CEN13LA524.md): Stemme S10-VT · Mackinaw City, MI · Accident · Serious injuries · Limited investigation · Final report · Aug 31, 2013 · N389BD · Substantial damage
  > The mechanic’s failure to inspect the tightness of the bolts that connected the flexible disk to the driveshaft, which resulted in the failure of these components.
- [NTSB CEN13LA401](https://openairdocs.org/ntsb/CEN13LA401.md): JDT 1600R · Chesaning, MI · Accident · 1 fatal · Limited investigation · Final report · Jul 6, 2013 · UNREG · Destroyed
  > The failure of the propeller reduction gearbox and the pilot’s subsequent failure to maintain adequate airspeed, which led to the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall and spin. Contributing to the accident were…
- [NTSB ERA12IA459](https://openairdocs.org/ntsb/ERA12IA459.md): Socata TB10 · Pawtucket, RI · Incident · No injuries · Incident investigation · Final report · Jul 15, 2012 · N189TB · No damage
  > The in-flight separation of the propeller blade tip due to a fatigue fracture.
- [NTSB WPR12LA096](https://openairdocs.org/ntsb/WPR12LA096.md): Arrow Falcon Exporters OH-58A · Brawley, CA · Accident · No injuries · Limited investigation · Final report · Jan 21, 2012 · N902SF · Substantial damage
  > The failure of the main rotor mast due to fatigue cracks that originated from corrosion pits. Contributing to the accident was the operator’s failure to adhere to the manufacturer’s recommended overhaul interval for the main rotor mast.
- [NTSB CEN11LA464](https://openairdocs.org/ntsb/CEN11LA464.md): Burtner Charles W Derjager D IX · East Liverpool, OH · Accident · Serious injuries · Limited investigation · Final report · Jul 7, 2011 · N7808M · Substantial damage
  > The pilot's improper landing flare, which resulted in a porpoised landing and propeller contact with the runway, which caused an in-flight disintegration of the propeller during the go-around, and subsequent collision with trees.
- [NTSB CEN11LA368](https://openairdocs.org/ntsb/CEN11LA368.md): Cessna 152 · Ann Arbor, MI · Accident · Serious injuries · Limited investigation · Final report · May 25, 2011 · N222UM · No damage
  > The flight instructor’s failure to maintain clearance from the propeller when exiting the airplane. Contributing to the accident were the instructor’s decision not to shut down the engine before exiting the airplane and the operator’s lack of a policy…
- [NTSB CEN09CA180](https://openairdocs.org/ntsb/CEN09CA180.md): Robinson Helicopter R22 Beta · O'Donnell, TX · Accident · Minor injuries · Data collection · Final report · Feb 25, 2009 · N387AC · Substantial damage
  > The pilot's failure to maintain control while performing a quick stop maneuver to an out of ground effect (OGE) hover. Contributing to the accident was the high density altitude and near calm wind condition.

## 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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '01040000'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/01040000/cases

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