NTSB investigations: Grumman G-164A
11 cases on aircraft the registry lists as Grumman G-164A, where the sequence of events included Nose over/nose down. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 2008 | 1 |
|---|---|
| 2011 | 2 |
| 2012 | 1 |
| 2013 | 1 |
| 2015 | 3 |
| 2018 | 2 |
| 2025 | 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3952704')
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\" = '096' 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"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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3952704')
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" = '096' 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" DESCRun 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 CEN25LA160Accident · No injuriesClass 4 · LimitedFinal reportGrumman G164 · Louise, TXThe reported loss of engine power for undetermined reasons.NTSB CEN18LA357Accident · No injuriesLimited investigationFinal reportGrumman G164 · Opelousas, LAThe loss of two securing bolts that allowed the left magneto to move around, which disrupted the spark timing and resulted in the engine losing total power.NTSB CEN18LA152Accident · No injuriesLimited investigationFinal reportGrumman G 164A · Garwood, TXA partial loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.NTSB ERA15LA314Accident · No injuriesLimited investigationFinal reportGrumman G164 · Trenton, NCThe pilot's decision to land the airplane with a tailwind and his subsequent application of excessive braking, which resulted in a nose-over.NTSB CEN15LA330Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Emmett, KSThe engine failure due to several loose, damaged cylinder stud nuts and hold-down bolts. Contributing to the accident was maintenance personnel’s failure to detect that the cylinder nuts and hold-down bolts were not properly secured during the engine’s most…NTSB CEN15LA204Accident · Minor injuriesLimited investigationFinal reportGrumman G 164A · Maysville, OKThe loss of engine power for reasons that could not be determined because a postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.NTSB CEN13LA443Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Monte Vista, COThe partial loss of engine power due to a fatigue failure of the engine cylinder exhaust rocker housing as a result of an excessively torqued rocker assembly.NTSB WPR12CA242Accident · No injuriesData collectionFinal reportGrumman G-164A · Riverton, WYThe pilot's loss of directional control during the landing roll and his deliberate application of excessive braking pressure, which resulted in a noseover.NTSB CEN11LA556Accident · No injuriesLimited investigationFinal reportGrumman G-164A · El Campo, TXSeparation of the No. 3 cylinder exhaust valve rocker arm, which resulted in a loss of engine power.NTSB ERA11LA290Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Albion, NYA bearing failure in the engine’s supercharger section, which resulted in a total loss of engine power during flight. Contributing to the accident was the soft soil of the forced landing site.NTSB NYC08LA245Accident · 1 fatalLimited investigationFinal reportGrumman G-164A · Pelham, GAA partial loss of engine power for undetermined reasons which led to a forced landing in unsuitable terrain.