NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164B
26 cases on aircraft the registry lists as Grumman Acft ENG Cor-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 |
|---|---|
| 1984 | 3 |
| 1989 | 4 |
| 1990 | 1 |
| 1991 | 1 |
| 1992 | 1 |
| 1993 | 1 |
| 1994 | 3 |
| 1995 | 3 |
| 1996 | 2 |
| 1998 | 1 |
| 2000 | 1 |
| 2001 | 1 |
| 2002 | 1 |
| 2006 | 2 |
Where
Latest 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 ('3952802')
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 ('3952802')
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 NYC06LA178Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Frederick, MDA failure of the masterod, due to a hydraulic lock on a previous flight, which resulted in a total loss of engine power.NTSB DEN06CA081Accident · Minor injuriesData collectionFinal reportGrumman G-164B · Dighton, KSThe broken rocker arm boss causing the number 1 cylinder exhaust valve to stay closed and subsequently the engine failed. A factor contributing to the accident was the soft field the airplane set down in.NTSB SEA02LA123Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Weiser, IDThe fracture of the number 3 cylinder exhaust pushrod resulting in the exhaust valve's inability to open during the exhaust cycle and the subsequent engine stoppage. Contributing factors were the ditch and elevated roadway which the aircraft crossed during…NTSB SEA01LA149Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Quincy, WAThe failure of the impeller assembly as a consequence of impeller rub and binding within the impeller collector case for undetermined reasons.NTSB LAX00LA345Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Tracy, CALoss of engine power due to failure and separation of the number one connecting rod.NTSB ATL99LA017Accident · Minor injuriesLimited investigationFinal reportGrumman-Schweizer G164B · Cuthbert, GAThe fatigue failure of the accessory gear shaft which resulted in fuel starvation and the loss of engine power. A factors was the fuel system filter restriction.NTSB CHI96LA186Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Crookston, MNcatastrophic engine failure.NTSB LAX96LA124Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Tracy, CAoverheating and failure of the engine's master rod and master rod bearing due to oil starvation. A factor relating to the accident was: the lack of suitable terrain for an emergency landing.NTSB CHI95LA266Accident · No injuriesLimited investigationFinal reportGrumman G164B · Bloomington, NEthe disintegration of the engine's super charger bearings. Factors associated with the accident were the total failure of the engine's super charger and the unsuitable terrain surrounding the airplane's departure path encountered by the pilot.NTSB FTW95LA392Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Springlake, TXThe loss of engine power due to the uncontained failure of the third stage turbine wheel. A factor was the lack of suitable terrain for the forced landing.NTSB LAX95LA195Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Robbins, CAa loss of engine power due to a separation of the number 6 cylinder, and the nose over during the subsequent forced landing.NTSB FTW94LA266Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Matagorda, TXA power loss due to cracked engine cylinder. A factor was the lack of suitable terrain for the forced landing.NTSB FTW94LA177Accident · Minor injuriesLimited investigationFinal reportGrumman G-164B · Casscoe, ARThe inadvertent stall and power loss for undetermined reasons. A factor was the lack of suitable terrain for the forced landing.NTSB SEA94LA072Accident · No injuriesLimited investigationFinal reportGrumman G-164 · Walla Walla, WAUnsuitable terrain for a forced landing after a loss of power due to a failed engine cylinder. Factors include a partial magneto failure.NTSB CHI93LA303Accident · No injuriesLimited investigationFinal reportSchweizer G167B · Borup, MNthe loss of engine power due to a cracked cylinder head.NTSB CHI92DCJ05Accident · No injuriesFinal reportGrumman-Schweizer G-164B · Atkinson, NEA cracked engine cylinder.NTSB SEA91LA136Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Wilson Creek, WAThe loss of engine power in flight due to improper overhaul of the carburetor float assembly fulcrum screw, shutting off fuel flow to the engine.NTSB LAX90DVA04Accident · Serious injuriesFinal reportGrumman-Schweizer G-164B · Buttonwillow, CAFailure of the #7 cylinder due to a pre-existing crack. The terrain condition was a related factor.NTSB MKC89LA170Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Portland, AREngine failure due to failure of an engine cylinder.NTSB MKC89LA148Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Stockville, NETotal failure of the powerplant caused by a broken cylinder.NTSB FTW89DRD08Accident · Minor injuriesFinal reportSchweizer G-164B · Kaplan, LALoss of engine power due to a cracked cylinder.NTSB FTW89DRD06Accident · No injuriesFinal reportGrumman-Schweizer G-164B · Ville Platte, LAWear and/or failure of the carburetor/float. Factors related to the accident were: the terrain conditions.NTSB LAX84LA338Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Tracy, CAThe acft lost power during takeoff & nosed over in a wheat field. An exam revealed that the #7 cylinder head was cracked from the rear spark plug hole, 3/4 of the circumference around the exhaust valve.NTSB ATL84FA105Accident · 1 fatalField investigationFinal reportGrumman G-164B · Dawson, GAA failed cylinder head assembly resulted in a total power loss very shortly after takeoff. Witnesses observed the aerial application acft at 30-50 ft AGL over the rwy before it pulled up steeply, rolled and entered a near vertical uncontrolled descent to…NTSB MIA84LA060Accident · Minor injuriesLimited investigationFinal reportGrumman AG-CAT · Homestead, FLThe acft crashed during a forced landing after the engine lost power. Investigation revealed that that # 8 cylinder failed. The original cracking was determined to be from fatigue.NTSB ATL83LA168Accident · Minor injuriesLimited investigationFinal reportGrumman G-164B · New Hope, ALThe acft collided with trees during a forced landing following an engine failure. The pilot stated that during a pull-upafter spraying a field the engine made a loud bang and smoke and oil began to pour out of the engine. Then the engine froze and the pilot…