NTSB investigations: Schweizer G-164B
13 cases on aircraft the registry lists as Schweizer G-164B, where the first occurrence was “Loss of engine power(total) - mech failure/malf”. 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
| 1983 | 1 |
|---|---|
| 1987 | 1 |
| 1988 | 2 |
| 1994 | 2 |
| 1995 | 1 |
| 1997 | 1 |
| 1999 | 1 |
| 2000 | 2 |
| 2002 | 1 |
| 2003 | 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 ('8059055')
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\" = 351))
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 ('8059055')
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" = 351))
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 SEA03LA086Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Basin City, WAThe failure of the torque sensor idler gear duplex bearing during agricultural aerial application, resulting in a total power loss and a forced landing. Factors include tall wheat and soft terrain.NTSB FTW02LA107Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Ferriday, LAthe failure of the number three cylinder exhaust rocker arm, resulting in a total loss of engine power. A contributing factor was the lack of suitable terrain for the forced landing.NTSB CHI00LA247Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Wallace, NEthe fractured number three exhaust push rod assembly and the unsuitable terrain encountered by the pilot.NTSB FTW00LA200Accident · Serious injuriesLimited investigationFinal reportSchweizer G-164B · Moscow, TXthe failure of the power output reduction gear to the propeller. A contributing factor was the lack of suitable terrain for the forced landing.NTSB ATL99LA055Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Bay Springs, MSThe fuel control drive bearing failure at the intermediate gear resulted in fuel starvation and the subsequent loss of engine power.NTSB LAX97LA121Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Winters, CAthe failure of the engine cylinder head assembly due to operational fatigue.NTSB MIA95LA192Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Quitman, MSImproper (low) outflow from the fuel control unit, due to improper maintenance, which resulted in a loss of engine power and a forced landing.NTSB LAX94LA213Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Gridley, CAa loss of engine power due to a cracked engine cylinder head.NTSB LAX94LA133Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Clarksburg, CAThe total failure of the no. 1 cylinder due to fatigue resulting from an improperly adjusted mixture causing detonation. The soft, wet plowed field was a factor in this accident.NTSB MKC88LA137Accident · No injuriesLimited investigationFinal reportGrumman G164B · Knobel, ARThe plt said he had just completed an aerial application operation and was returning to his base airfield to re-load. While in a low level cruise, the engine quit abruptly, and an emergency ldg was attempted in a soft, muddy soy bean field. During the ldg…NTSB LAX88DVG03Accident · No injuriesFinal reportSchweizer G-164B · Gridley, CADuring an agricultural operation, the engine quit at approximately 50 feet AGL. The airplane was landed on a dirt field and nosed over. Inspection of the engine revealed that the left magneto drive gear teeth were missing and the right magneto drive gear was…NTSB FTW87DRD07Accident · No injuriesFinal reportGrumman G-164B · Chenneyville, LAThe engine experienced a total loss of power due to a failed #1 connecting rod. During the forced landing the left wing contacted cotton plants which caused the aircraft to veer left and flip inverted.NTSB ATL83LA205Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Blakely, GAShortly after takeoff, the eng sputtered, lost power & belched black & gray smoke. The plt was unable to get the acft to maintain altidude. Also, he was unable to reach an open field, so he landed on the tops of trees. An investigation revealed that the front…