NTSB investigations
16 cases where NTSB found Propeller governor.
Cases per year
| 2008 | 1 |
|---|---|
| 2009 | 1 |
| 2011 | 1 |
| 2012 | 1 |
| 2013 | 2 |
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2021 | 1 |
| 2023 | 1 |
| 2024 | 1 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "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\", '01046122')) ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"
Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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", '01046122')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB CEN24LA187Accident · Serious injuriesClass 4 · LimitedFinal reportAviat A1 · Poole, NEThe non-certificated pilot’s failure to configure the airplane for takeoff, which resulted in a runway excursion.NTSB CEN24LA061Accident · No injuriesClass 3 · LimitedFinal reportCessna 421C · McGregor, TXThe failure of the spring pin in the right propeller governor, which precluded the pilot from controlling the propeller pitch to maintain engine rpm, resulting in a loss of engine thrust, excessive drag, and the subsequent forced landing to a field.NTSB WPR21LA208Accident · Minor injuriesClass 3 · LimitedFinal reportBoeing A75N1(PT17) · Hollister, CAThe improper installation of a relief valve spring that was shorter than the standard spring length, which slowed the response of the propeller governor to change the pitch of the blades during climbout, resulting in a partial loss of power.NTSB ERA19LA232Accident · Minor injuriesClass 3 · LimitedFinal reportVans RV7 · Ocean City, MDThe disconnection of the propeller governor control arm from the propeller governor due to a missing attachment bolt, which resulted in a partial loss of engine power during takeoff when the governor control vibrated to a high pitch, low rpm setting.NTSB ERA19LA096Accident · 1 fatalLimited investigationFinal reportConvair C131 · Atlantic Ocean (Atlantic Ocean)The captain's decision to continue with the flight with a malfunctioning left engine propeller control and the subsequent loss of engine power on both engines for undetermined reasons, which resulted in ditching into the ocean. Contributing to the accident…NTSB WPR18FA131Accident · 1 fatalField investigationFinal reportAmerican Air Racing Thunder Mustang · Reno, NVThe pilot's failure to properly secure the engine coolant pump pulley during recent maintenance, which resulted in a loss of the engine's lubrication, cooling, and propeller control systems, and a forced landing, during which the airplane nosed over.…NTSB ERA18LA021Accident · No injuriesClass 2 · LimitedFinal reportSocata TB200 · Annapolis, MDA loss of engine power for undetermined reasons after the disconnection of the propeller governor control due to inadequate securenment during maintenance.NTSB WPR16FA095Accident · 1 fatalField investigationFinal reportMooney M20K · Woodland, WAThe pilot's delay in recognizing that the airplane was not performing as expected and aborting the takeoff, which resulted in collision with a berm beyond the end of the runway. Contributing to the accident were the pilot's exceedance of the airplane's gross…NTSB CEN15IA365Incident · No injuriesIncident investigationFinal reportBeech V35 · Mount Vernon, OHThe loosening of the flyweight due to the installation of an improperly hardened flyweight carrier, which resulted in the overspeed of the propeller and engine and the subsequent in-flight separation of the propeller.NTSB CEN15LA298Accident · Minor injuriesLimited investigationFinal reportCirrus Design SR22 · Houston, TXMaintenance personnel's improper installation of the propeller governor, which resulted in damage to the governor drive gear and its subsequent failure and a subsequent loss of engine power.NTSB CEN13LA414Accident · Minor injuriesLimited investigationFinal reportAyres S2R-T41 · Coy, ARThe propeller’s uncommanded reverse thrust during the landing flare due to improper rigging of the propeller’s governor linkage.NTSB CEN13LA346Accident · No injuriesLimited investigationFinal reportRogers T-51 Mustang KIT · St Francis, KSForeign debris in the propeller governor, which led to excessive wear in the governor and its subsequent in-flight failure.NTSB WPR12LA265Accident · Serious injuriesLimited investigationFinal reportRoetman Ryland K JR Eagle · Rexburg, IDA loss of engine oil pressure, which led to the subsequent uncommanded loss of thrust and decrease in the propeller rpm during a low-level aerobatic maneuver.NTSB CEN11LA512Accident · No injuriesLimited investigationFinal reportWSK PZL Mielec M-18A · Anderson, INThe fatigue failure of the propeller governor speeder spring, which resulted in the pilot’s inability to control engine output power.NTSB WPR09LA197Accident · No injuriesLimited investigationFinal reportRaytheon A36 · Lopez Island, WAA loss of engine power during cruise flight due to oil starvation. The oil starvation event was due to the failure of maintenance personnel to tighten the aft mounting nuts for the newly installed propeller governor and the pilot’s failure to secure the oil…NTSB SEA08IA217Incident · No injuriesIncident investigationFinal reportDiamond DA 40 · San Carlos, CAThe improper assembly of the governor during manufacture.