# NTSB investigations: Grumman G-164A: Loss of engine power(partial) - 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 LAX05LA152](https://openairdocs.org/ntsb/LAX05LA152.md): Grumman G-164A · Yuba City, CA · Accident · No injuries · Limited investigation · Final report · Apr 30, 2005 · N5304 · Substantial damage > a partial loss of engine power due to multiple cracks in the number 7 cylinder. The reasons for the cracks were not determined - [NTSB IAD04LA027](https://openairdocs.org/ntsb/IAD04LA027.md): Grumman G-164A · Chatsworth, NJ · Accident · No injuries · Limited investigation · Final report · Jul 2, 2004 · N915X · Substantial damage > A blocked internal oil passage, which resulted in inadequate lubrication of the blower impeller shaft, and the subsequent partial loss of engine power. - [NTSB LAX00LA261](https://openairdocs.org/ntsb/LAX00LA261.md): Grumman G-164A · Gridley, CA · Accident · No injuries · Limited investigation · Final report · Jul 11, 2000 · N897X · Substantial damage > A partial loss of engine power due to the failure of an exhaust valve during an aerial application flight. - [NTSB FTW00LA098](https://openairdocs.org/ntsb/FTW00LA098.md): Grumman G-164A · Garwood, TX · Accident · No injuries · Limited investigation · Final report · Mar 13, 2000 · N6637 · Substantial damage > The failure of the left magneto, which resulted in the partial loss of engine power during takeoff. - [NTSB FTW93LA169](https://openairdocs.org/ntsb/FTW93LA169.md): Grumman G-164A · Weiner, AR · Accident · No injuries · Limited investigation · Final report · May 27, 1993 · N4593 · Substantial damage > Partial power loss due to improper installation of the linkage control bracket. A factor was the lack of suitable terrain for the forced landing. - [NTSB FTW91DPG03](https://openairdocs.org/ntsb/FTW91DPG03.md): Grumman G-164A · Earle, AR · Accident · No injuries · Final report · Apr 2, 1991 · N5336 · Substantial damage > A power loss for undetrmined reasons. A factor was the muddy/soft terrain in which the forced landing was performed. - [NTSB MKC90LA126](https://openairdocs.org/ntsb/MKC90LA126.md): Grumman G-164A · Fisher, AR · Accident · No injuries · Limited investigation · Final report · Jun 12, 1990 · N5257 · Destroyed > Partial loss of engine power for an undetermined reason. - [NTSB MKC90LA067](https://openairdocs.org/ntsb/MKC90LA067.md): Grumman AG-CAT G-164A · Parkin, AR · Accident · No injuries · Limited investigation · Final report · Mar 17, 1990 · N5336 · Substantial damage > Total failure of the engine's master connecting rod. - [NTSB CHI89DEX06](https://openairdocs.org/ntsb/CHI89DEX06.md): Grumman G-164A · Sullivan, IN · Accident · No injuries · Final report · Aug 2, 1989 · N952X · Substantial damage > A failure of the supercharger oil seal which resulted in a partial loss of engine power during takeoff and the uncontrolled touchdown during the forced landing. Factors related to the accident were: partial failure of the supercharger and spark plub fowling. - [NTSB MKC88LA161](https://openairdocs.org/ntsb/MKC88LA161.md): Grumman G-164A · Gillett, AR · Accident · No injuries · Limited investigation · Final report · Aug 20, 1988 · N6567 · Substantial damage > While en route to engage in an aerial application operation, the plt said the engine began to misfire and cut out. Unable to correct the malfunction, the plt dumped his chemical load and began returning to the departure airstrip. En route, he felt he would… - [NTSB FTW86LRD12](https://openairdocs.org/ntsb/FTW86LRD12.md): Grumman G-164A · Branch, LA · Accident · No injuries · Final report · May 21, 1986 · N5407 · Substantial damage > Shortly after takeoff, a partial power loss occurred & the plt made a forced landing in a soft plowed field, where the acft nosed over onto its back. The plt rprtd the loss of power was due to failure of the eng blower. - [NTSB FTW85LA002](https://openairdocs.org/ntsb/FTW85LA002.md): Grumman G-164A · Progreso, TX · Accident · No injuries · Limited investigation · Final report · Oct 1, 1984 · N5255 · Substantial damage > Shortly after takeoff, plt heard explosive report from engine and experienced partial pwr loss. Plt attempted to return for landing but could not maintain sufficient altitude. Load not jettisoned. During forced landing roll out in cane field acft nosed over.… - [NTSB ATL83LA348](https://openairdocs.org/ntsb/ATL83LA348.md): Grumman G-164A · Clinton, KY · Accident · No injuries · Limited investigation · Final report · Aug 31, 1983 · N5256 · Substantial damage > The plt reported that he was spraying a field that was bordered by obstacles. When he was about half way thru a procedure turn, the eng began 'backfiring & losing power.' The plt moved the throttle to about the 1/2 power setting, hoping the condition would be… ## 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 ('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" = 352)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?model=3952704&occurrence=352 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.