# NTSB investigations: Ayres S2R-T34: 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 DFW06LA198](https://openairdocs.org/ntsb/DFW06LA198.md): Ayres S2R-T34 · Parkdale, AR · Accident · No injuries · Limited investigation · Final report · Aug 11, 2006 · N444HF · Substantial damage
  > The failure of a compressor turbine blade for undetermined reasons, which resulted in a total loss of engine power. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB LAX98LA129](https://openairdocs.org/ntsb/LAX98LA129.md): Ayres S2RT-34RE · Buckeye, AZ · Accident · No injuries · Limited investigation · Final report · Mar 25, 1998 · N4010X · Substantial damage
  > The incorrect turbine blades installed on the engine, the fractured compressor turbine blades and separation of the blade, and the improper maintenance installation of the incorrect CT blades by the repair station. A factor in the accident was the inadequate…
- [NTSB LAX97LA182](https://openairdocs.org/ntsb/LAX97LA182.md): Ayres S2R-T-34 · Tonopah, AZ · Accident · No injuries · Limited investigation · Final report · May 8, 1997 · N4011G · Substantial damage
  > the failure of the power turbine due to an overtemperature condition created by an improperly adjusted fuel control. A factor in the accident was the tripped circuit breaker which prevented the wing lights from operating during the forced night landing.
- [NTSB FTW93LA171](https://openairdocs.org/ntsb/FTW93LA171.md): Ayres SR2-T34 · Harrisburg, AR · Accident · No injuries · Limited investigation · Final report · May 31, 1993 · N6051F · Substantial damage
  > The loss of engine power due to the failure of the reduction gear assembly due to fatigue. A factor was the lack of suitable terrain for the forced landing.

## 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 ('0970106')
    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=0970106&occurrence=351

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