# NTSB investigations: Grumman G-164A: Loss of engine power (partial)

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 CEN24LA313](https://openairdocs.org/ntsb/CEN24LA313.md): Grumman G164 · Dyess, AR · Accident · No injuries · Class 3 · Limited · Final report · Aug 9, 2024 · N6569 · Substantial damage
  > The improper overhaul of the carburetor and the malfunction of left magneto which resulted in a partial loss of engine power.
- [NTSB CEN23LA317](https://openairdocs.org/ntsb/CEN23LA317.md): Grumman G-164A · Patoka, IL · Accident · No injuries · Class 3 · Limited · Final report · Jul 22, 2023 · N9892 · Substantial damage
  > A partial loss of engine power due to the failure of two compressor turbine blades as a result of the engine operating near or above the engine’s operating limits for an undetermined amount of time beyond the recommended engine’s TBO limit, which led to…
- [NTSB CEN18LA152](https://openairdocs.org/ntsb/CEN18LA152.md): Grumman G 164A · Garwood, TX · Accident · No injuries · Limited investigation · Final report · Apr 27, 2018 · N6637 · Substantial damage
  > A partial loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN13LA443](https://openairdocs.org/ntsb/CEN13LA443.md): Grumman G-164A · Monte Vista, CO · Accident · No injuries · Limited investigation · Final report · Jul 29, 2013 · N5324 · Substantial damage
  > The partial loss of engine power due to a fatigue failure of the engine cylinder exhaust rocker housing as a result of an excessively torqued rocker assembly.
- [NTSB CEN12LA458](https://openairdocs.org/ntsb/CEN12LA458.md): Grumman G-164A · Egeland, ND · Accident · No injuries · Limited investigation · Final report · Jul 7, 2012 · N6583 · Substantial damage
  > The partial loss of engine power for reasons that could not be determined during postaccident examinations.
- [NTSB WPR09LA373](https://openairdocs.org/ntsb/WPR09LA373.md): Grumman G164 · Riverdale, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 28, 2009 · N8741H · Substantial damage
  > The partial loss of engine power due to the failure of the engine's supercharger-blower.
- [NTSB NYC08LA245](https://openairdocs.org/ntsb/NYC08LA245.md): Grumman G-164A · Pelham, GA · Accident · 1 fatal · Limited investigation · Final report · Jul 12, 2008 · N7395 · Substantial damage
  > A partial loss of engine power for undetermined reasons which led to a forced landing in unsuitable terrain.

## 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_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '342' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/342/sequence?model=3952704

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