NTSB investigations: Grumman G-164A

7 cases on aircraft the registry lists as Grumman G-164A, where the first occurrence was “Airframe/component/system failure/malfunction”. 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.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19842026

NTSB investigations: Grumman G-164A per year, 1984–2026: 7 cases
1984	1
1985	1
1986	1
1990	1
1994	1
2002	1
2004	1

Where

Open the map

Latest cases

Query with 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 ('3952704') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 130)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

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_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 130))
  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_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 130))
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 FTW04LA164Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Garwood, TXThe separation of the right main landing gear wheel and axle during take-off. Contributing factors were the fatigue of the bolts on the right main landing gear and the rough and uneven terrain.Jun 17, 2004 · N6567 · Substantial damage NTSB DEN02LA081Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Two Buttes, COthe failure of the right main landing wheel master brake cylinder and the subsequent inadvertent ground loop during the landing roll by the pilot.Jul 24, 2002 · N5416 · Substantial damage NTSB FTW94LA214Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Coy, ARThe separation of the landing gear due to failure of the landing gear axle bolts.Jun 24, 1994 · N5321 · Substantial damage NTSB ATL90LA171Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Americus, GAA low cycle fatigue failure of the left main landing gear spring.Sep 14, 1990 · N7905 · Destroyed NTSB LAX86FVA03Accident · Minor injuriesFinal reportSchweizer G164A · Wasco, CAThe acft went off the left side of rwy during a downwind landing. The ag plts made a practice of landing downwind to speed up turn-around time. They relied on their brakes to maintain control. The acc acfts brake pads were worn and the rt brake was fluid…Mar 7, 1986 · N946X · Substantial damage NTSB DEN85LA173Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Deming, NMThe plt told FAA he was spraying a cotton field and was turning around from a swath run when the propeller feathered. The plt told NTSB that the acft 'pitched upward and lost power.' Acft type certificate shows that a hamilton standard propeller m/n…Jun 22, 1985 · N5337 · Substantial damage NTSB DEN84LA224Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Richey, MTThe plt had finished spraying & was proceeding to the glendive arpt. He said that eng or prop began a sudden severe vibration which required the eng to be shut down. An emegency landing was made. The plt stated that the left wing impacted a hill which spun…Jul 15, 1984 · N6589 · Destroyed