# NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164B: Loss of engine power(total) - mech failure/malf

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB NYC06LA178](https://openairdocs.org/ntsb/NYC06LA178.md): Grumman-Schweizer G-164B · Frederick, MD · Accident · No injuries · Limited investigation · Final report · Jul 11, 2006 · N6645Q · Substantial damage
  > A failure of the masterod, due to a hydraulic lock on a previous flight, which resulted in a total loss of engine power.
- [NTSB DEN06CA081](https://openairdocs.org/ntsb/DEN06CA081.md): Grumman G-164B · Dighton, KS · Accident · Minor injuries · Data collection · Final report · Jun 1, 2006 · N14RY · Substantial damage
  > The 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 SEA02LA123](https://openairdocs.org/ntsb/SEA02LA123.md): Grumman-Schweizer G-164B · Weiser, ID · Accident · No injuries · Limited investigation · Final report · Jul 6, 2002 · N8440K · Substantial damage
  > The 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 SEA01LA149](https://openairdocs.org/ntsb/SEA01LA149.md): Grumman G-164B · Quincy, WA · Accident · No injuries · Limited investigation · Final report · Aug 11, 2001 · N6774Q · Substantial damage
  > The failure of the impeller assembly as a consequence of impeller rub and binding within the impeller collector case for undetermined reasons.
- [NTSB LAX00LA345](https://openairdocs.org/ntsb/LAX00LA345.md): Grumman-Schweizer G-164B · Tracy, CA · Accident · No injuries · Limited investigation · Final report · Sep 22, 2000 · N8981H · Substantial damage
  > Loss of engine power due to failure and separation of the number one connecting rod.
- [NTSB ATL99LA017](https://openairdocs.org/ntsb/ATL99LA017.md): Grumman-Schweizer G164B · Cuthbert, GA · Accident · Minor injuries · Limited investigation · Final report · Nov 11, 1998 · N6656Q · Destroyed
  > The 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 CHI96LA186](https://openairdocs.org/ntsb/CHI96LA186.md): Grumman-Schweizer G-164B · Crookston, MN · Accident · No injuries · Limited investigation · Final report · May 25, 1996 · N48518 · Substantial damage
  > catastrophic engine failure.
- [NTSB LAX96LA124](https://openairdocs.org/ntsb/LAX96LA124.md): Schweizer G-164B · Tracy, CA · Accident · No injuries · Limited investigation · Final report · Feb 21, 1996 · N6674Q · Substantial damage
  > overheating 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 CHI95LA266](https://openairdocs.org/ntsb/CHI95LA266.md): Grumman G164B · Bloomington, NE · Accident · No injuries · Limited investigation · Final report · Aug 10, 1995 · N6771Q · Substantial damage
  > the 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 FTW95LA392](https://openairdocs.org/ntsb/FTW95LA392.md): Grumman G-164B · Springlake, TX · Accident · No injuries · Limited investigation · Final report · Jun 8, 1995 · N211JM · Substantial damage
  > The 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 LAX95LA195](https://openairdocs.org/ntsb/LAX95LA195.md): Grumman G-164B · Robbins, CA · Accident · No injuries · Limited investigation · Final report · May 25, 1995 · N6774K · Substantial damage
  > a loss of engine power due to a separation of the number 6 cylinder, and the nose over during the subsequent forced landing.
- [NTSB FTW94LA266](https://openairdocs.org/ntsb/FTW94LA266.md): Grumman G-164B · Matagorda, TX · Accident · No injuries · Limited investigation · Final report · Aug 10, 1994 · N8251K · Destroyed
  > A power loss due to cracked engine cylinder. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW94LA177](https://openairdocs.org/ntsb/FTW94LA177.md): Grumman G-164B · Casscoe, AR · Accident · Minor injuries · Limited investigation · Final report · May 24, 1994 · N48386 · Destroyed
  > The inadvertent stall and power loss for undetermined reasons. A factor was the lack of suitable terrain for the forced landing.
- [NTSB SEA94LA072](https://openairdocs.org/ntsb/SEA94LA072.md): Grumman G-164 · Walla Walla, WA · Accident · No injuries · Limited investigation · Final report · Mar 2, 1994 · N6612Q · Substantial damage
  > Unsuitable terrain for a forced landing after a loss of power due to a failed engine cylinder. Factors include a partial magneto failure.
- [NTSB CHI93LA303](https://openairdocs.org/ntsb/CHI93LA303.md): Schweizer G167B · Borup, MN · Accident · No injuries · Limited investigation · Final report · Jul 27, 1993 · N6637Q · Substantial damage
  > the loss of engine power due to a cracked cylinder head.
- [NTSB CHI92DCJ05](https://openairdocs.org/ntsb/CHI92DCJ05.md): Grumman-Schweizer G-164B · Atkinson, NE · Accident · No injuries · Final report · Aug 11, 1992 · N48672 · Substantial damage
  > A cracked engine cylinder.
- [NTSB SEA91LA136](https://openairdocs.org/ntsb/SEA91LA136.md): Schweizer G-164B · Wilson Creek, WA · Accident · No injuries · Limited investigation · Final report · May 27, 1991 · N8407K · Substantial damage
  > The 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 LAX90DVA04](https://openairdocs.org/ntsb/LAX90DVA04.md): Grumman-Schweizer G-164B · Buttonwillow, CA · Accident · Serious injuries · Final report · Jun 8, 1990 · N6725K · Destroyed
  > Failure of the #7 cylinder due to a pre-existing crack. The terrain condition was a related factor.
- [NTSB MKC89LA170](https://openairdocs.org/ntsb/MKC89LA170.md): Grumman G-164B · Portland, AR · Accident · No injuries · Limited investigation · Final report · Jul 28, 1989 · N8116K · Substantial damage
  > Engine failure due to failure of an engine cylinder.
- [NTSB MKC89LA148](https://openairdocs.org/ntsb/MKC89LA148.md): Grumman G-164B · Stockville, NE · Accident · No injuries · Limited investigation · Final report · Jul 2, 1989 · N6629Q · Substantial damage
  > Total failure of the powerplant caused by a broken cylinder.
- [NTSB FTW89DRD08](https://openairdocs.org/ntsb/FTW89DRD08.md): Schweizer G-164B · Kaplan, LA · Accident · Minor injuries · Final report · Jun 16, 1989 · N48592 · Destroyed
  > Loss of engine power due to a cracked cylinder.
- [NTSB FTW89DRD06](https://openairdocs.org/ntsb/FTW89DRD06.md): Grumman-Schweizer G-164B · Ville Platte, LA · Accident · No injuries · Final report · Jun 6, 1989 · N6693Q · Substantial damage
  > Wear and/or failure of the carburetor/float. Factors related to the accident were: the terrain conditions.
- [NTSB LAX84LA338](https://openairdocs.org/ntsb/LAX84LA338.md): Grumman G-164B · Tracy, CA · Accident · No injuries · Limited investigation · Final report · Jun 7, 1984 · N6708K · Substantial damage
  > The 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 ATL84FA105](https://openairdocs.org/ntsb/ATL84FA105.md): Grumman G-164B · Dawson, GA · Accident · 1 fatal · Field investigation · Final report · Feb 19, 1984 · N6558K · Destroyed
  > A 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 MIA84LA060](https://openairdocs.org/ntsb/MIA84LA060.md): Grumman AG-CAT · Homestead, FL · Accident · Minor injuries · Limited investigation · Final report · Jan 16, 1984 · N6736Q · Destroyed
  > The 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 ATL83LA168](https://openairdocs.org/ntsb/ATL83LA168.md): Grumman G-164B · New Hope, AL · Accident · Minor injuries · Limited investigation · Final report · Apr 21, 1983 · N6756Q · Substantial damage
  > The 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…

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```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 ('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
```

This list as a web page: https://openairdocs.org/ntsb?model=3952802&occurrence=351

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