# NTSB investigations: Rockwell International S-2R: 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 WPR17LA174](https://openairdocs.org/ntsb/WPR17LA174.md): Rockwell International S 2R · Brawley, CA · Accident · No injuries · Limited investigation · Final report · Aug 1, 2017 · N4913X · Substantial damage
  > The partial loss of engine power due to the overstress separation of three supercharger drive gear teeth.
- [NTSB CEN13LA390](https://openairdocs.org/ntsb/CEN13LA390.md): Rockwell S-2R · Boise City, OK · Accident · No injuries · Limited investigation · Final report · Jun 12, 2013 · N2249U · Substantial damage
  > The total loss of engine power for reasons that could not be determined because postaccident examination of the engine and fuel system revealed no anomalies.
- [NTSB WPR12LA356](https://openairdocs.org/ntsb/WPR12LA356.md): Rockwell S2R · Royal City, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 14, 2012 · N8468V · Substantial damage
  > The loss of engine power due to the separation of the No. 2 cylinder exhaust rocker boss housing, which prevented the exhaust valve from opening.
- [NTSB CEN12LA357](https://openairdocs.org/ntsb/CEN12LA357.md): Rockwell International S-2R · Howard, SD · Accident · No injuries · Limited investigation · Final report · May 23, 2012 · N8421V · Substantial damage
  > A fractured fabricated aluminum oil line, which resulted in oil exhaustion followed by a forced landing.
- [NTSB CEN11CA006](https://openairdocs.org/ntsb/CEN11CA006.md): Rockwell International S-2R · Texarkana, AR · Accident · No injuries · Data collection · Final report · Oct 5, 2010 · N8432V · Substantial damage
  > The loss of engine power due to cracked engine cylinder.
- [NTSB MIA08LA133](https://openairdocs.org/ntsb/MIA08LA133.md): Rockwell International S-2R · Colquitt, GA · Accident · Minor injuries · Limited investigation · Final report · Jul 5, 2008 · N8499V · Substantial damage
  > Loss of engine power due to the installation of incorrect turbine blades on the compressor turbine disk during repair of the disk assembly.
- [NTSB SEA08LA133](https://openairdocs.org/ntsb/SEA08LA133.md): Thrush S-2R · Holtville, CA · Accident · Minor injuries · Limited investigation · Final report · May 11, 2008 · N8860Q · Substantial damage
  > The loss of oil pressure for undetermined reasons.

## 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 ('7630202', '7630205')
    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=7630202

---
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.