# NTSB investigations: Rotax 912UL2: Loss of engine power (total)

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 WPR25LA291](https://openairdocs.org/ntsb/WPR25LA291.md): Pipistrel D O O Alpha Trainer · Wittman, AZ · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Sep 25, 2025 · N246EA · Substantial damage
  > On September 25, 2025, at about 0653 mountain daylight time, a Pipistrel D O O Alpha Trainer, N246EA, was substantially damaged when it was involved in an accident near Wittman, Arizona. The two pilots on board received minor injuries. The airplane was…
- [NTSB ERA20LA341](https://openairdocs.org/ntsb/ERA20LA341.md): Tecnam P92 · Centerville, MD · Accident · No injuries · Class 3 · Limited · Final report · Sep 28, 2020 · N562TU · Substantial damage
  > The fatigue failure of the No. 1 cylinder exhaust valve spring retainer due to air trapped in the lubrication system, which resulted in a total loss of engine power.
- [NTSB GAA19CA295](https://openairdocs.org/ntsb/GAA19CA295.md): Pipistrel Alpha Trainer · Salida, CO · Accident · No injuries · Data collection · Final report · May 30, 2019 · N40EN · Substantial damage
  > The pilot's failure to replace the fuel cap after fueling, which resulted in a loss of engine power due to fuel exhaustion and a subsequent forced landing to a field and subsequent collision with a fence.
- [NTSB ERA17LA246](https://openairdocs.org/ntsb/ERA17LA246.md): Costruzioni Aeronautiche Tecna P92 Eaglet · Stevensville, MD · Accident · No injuries · Class 3 · Limited · Final report · Jul 15, 2017 · N561TU · Substantial damage
  > The fatigue failure of an exhaust valve spring retainer due to air trapped in the lubrication system, which resulted in a total loss of engine power.
- [NTSB WPR10LA202](https://openairdocs.org/ntsb/WPR10LA202.md): Costruzioni AeronauticheTecnam P2002 Sierra · Tooele, UT · Accident · No injuries · Limited investigation · Final report · Apr 10, 2010 · N797TS · Substantial damage
  > A total loss of engine power 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.engine_model_code IN ('55574')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '341'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/341/cases?engine=55574

---
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.