# NTSB investigations: Recip eng front section

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 ERA24LA258](https://openairdocs.org/ntsb/ERA24LA258.md): Clapp Saberwing · Valdosta, GA · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 11, 2024 · N120SW · Substantial damage
  > The total loss of engine power due to the shearing of the woodruff key that indexed the crankshaft gear and hub assembly to the crankshaft, which resulted in the gear and hub rotating from their indexed position and caused the crankshaft-to-camshaft timing to…
- [NTSB WPR23LA160](https://openairdocs.org/ntsb/WPR23LA160.md): Remos Remos GX · Glendale, AZ · Accident · No injuries · Class 3 · Limited · Final report · Apr 18, 2023 · N21GX · Substantial damage
  > A total loss of engine power caused by fatigue cracking and fracture of the crankshaft. Contributing to the accident was the operator’s failure to properly maintain the airplane.
- [NTSB CEN21LA401](https://openairdocs.org/ntsb/CEN21LA401.md): Bulfer James G Genesis · Fairmont, MN · Accident · No injuries · Class 3 · Limited · Final report · Sep 6, 2021 · N105BJ · Substantial damage
  > The pilot’s failure to maintain airspeed during a forced landing, which resulted in the airplane exceeding its critical angle of attack and a subsequent aerodynamic stall. Contributing to the accident was the loss of power due to the failure of the engine’s…
- [NTSB CEN21LA138](https://openairdocs.org/ntsb/CEN21LA138.md): Cessna 182F · Millville, IA · Accident · Minor injuries · Class 3 · Limited · Final report · Feb 24, 2021 · N3209U · Substantial damage
  > The inadequate maintenance/inspection of the airplane, which resulted in a total loss of engine power due to oil starvation.
- [NTSB ANC17LA007](https://openairdocs.org/ntsb/ANC17LA007.md): Piper PA-18 · Bethel, AK · Accident · No injuries · Limited investigation · Final report · Nov 22, 2016 · N83641 · Substantial damage
  > The mechanic's failure to install a whistle slot in the engine breather tube, which resulted in a frozen tube, displacement of the crankshaft oil seal, a loss of oil, and smoke in the cockpit, which led to a forced landing.
- [NTSB ERA16LA041](https://openairdocs.org/ntsb/ERA16LA041.md): Woodrow Larry W Sonex · Morganton, NC · Accident · No injuries · Limited investigation · Final report · Nov 15, 2015 · N7035Z · Substantial damage
  > The pilot/owner’s inadequate maintenance inspection following a propeller strike, which resulted in the subsequent in-flight propeller separation due to propagation of fatigue cracks in the crankshaft.
- [NTSB ERA13FA325](https://openairdocs.org/ntsb/ERA13FA325.md): Beech 23 · Laurel, MD · Accident · Serious injuries · Field investigation · Final report · Jul 18, 2013 · N2333Z · Substantial damage
  > The pilot's inadequate preflight preparation of the airplane, which resulted in a total loss of engine power during takeoff and his decision to operate the unairworthy airplane.
- [NTSB ERA13FA082](https://openairdocs.org/ntsb/ERA13FA082.md): Cessna 421C · Lake Worth, FL · Accident · 1 fatal · Field investigation · Final report · Dec 8, 2012 · N297DB · Substantial damage
  > The pilot's failure to follow established engine-out procedures and to maintain a proper airspeed after the total loss of engine power on one of the airplane’s two engines during the initial climb. Contributing to the accident was the total loss of engine…
- [NTSB ERA11IA521](https://openairdocs.org/ntsb/ERA11IA521.md): Beech V35 · New Haven, CT · Incident · No injuries · Incident investigation · Final report · Sep 18, 2011 · N275BM · Minor damage
  > The in-flight fatigue failure of the engine’s crankshaft, which resulted in the separation of the forward portion of the crankshaft and the propeller.
- [NTSB WPR11LA290](https://openairdocs.org/ntsb/WPR11LA290.md): Christen Industries Pitts S-1T · Alkali Lake, OR · Accident · Minor injuries · Limited investigation · Final report · Jun 26, 2011 · N77MN · Substantial damage
  > The loss of engine oil during cruise flight due to the failure of the front bearing oil seal.
- [NTSB ERA09LA146](https://openairdocs.org/ntsb/ERA09LA146.md): Cessna 152 · Wauchula, FL · Accident · No injuries · Limited investigation · Final report · Jan 18, 2009 · N6566P · Substantial damage
  > A loss of engine power due to failure of the Number 3 connecting rod due to oil contamination. Contributing to the accident was the insufficient oil change time intervals performed by company personnel.
- [NTSB ERA09CA054](https://openairdocs.org/ntsb/ERA09CA054.md): Snow 600 · Nashville, TN · Accident · No injuries · Data collection · Final report · Nov 14, 2008 · N1691S · Substantial damage
  > The failure of the propeller shaft seal in flight. Contributing to the accident was the lack of suitable terrain for a forced landing.
- [NTSB MIA08LA196](https://openairdocs.org/ntsb/MIA08LA196.md): Cessna 120 · Jesup, GA · Accident · No injuries · Limited investigation · Final report · Sep 19, 2008 · N77068 · Substantial damage
  > An oil starvation-induced catastrophic engine failure due to the improper installation of the crankshaft expansion plug during engine overhaul.

## 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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '01058510'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/01058510/cases

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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.
