# NTSB investigations: Lycoming IO-320 series: 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 WPR26LA163](https://openairdocs.org/ntsb/WPR26LA163.md): Piper PA30 · Auburn, WA · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Apr 18, 2026 · N741TJ · Substantial damage
  > On April 18, 2026, about 1330 Pacific daylight time, a Piper PA-30 Twin Comanche, N741TJ, was substantially damaged when it was involved in an accident near Auburn, Washington. The pilot and pilot-rated passenger sustained minor injuries. The airplane was…
- [NTSB GAA21WA137](https://openairdocs.org/ntsb/GAA21WA137.md): Piper PA-30 · Courcelles-sur-Viosnes, France · Accident · No injuries · Class 4 · Foreign · Mar 2, 2021 · N7977Y · Substantial damage
- [NTSB WPR20LA223](https://openairdocs.org/ntsb/WPR20LA223.md): Piper PA 30 · Vaughn, NM · Accident · No injuries · Class 3 · Limited · Final report · Jul 15, 2020 · N8488Y · Substantial damage
  > The total loss of power in the right engine due to fuel starvation. Contributing to the accident was the pilot’s failure to follow the manufacturer-recommended procedure after the loss of power in the right engine.
- [NTSB WPR20LA180](https://openairdocs.org/ntsb/WPR20LA180.md): Bellanca 7KCAB · Renton, WA · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 12, 2020 · N36339 · Substantial damage
  > Maintenance personnel’s inadequate post-maintenance inspections that resulted in the total loss of engine power due to a blockage in the air intake.
- [NTSB CEN15LA357](https://openairdocs.org/ntsb/CEN15LA357.md): Piper PA 30 · Clifton, TX · Accident · Minor injuries · Limited investigation · Final report · Jul 13, 2015 · N7768Y · Destroyed
  > The pilot's failure to maintain control during a precautionary landing following a total loss of power to one engine. The reason for the loss of engine power could not be determined based on available information.
- [NTSB WPR14LA323](https://openairdocs.org/ntsb/WPR14LA323.md): Rans S-16 · Fort Bridger, WY · Accident · No injuries · Limited investigation · Final report · Aug 1, 2014 · N116GS · Substantial damage
  > The fuel flow divider inlet line’s B-nut coming loose during takeoff, resulting in a total loss of engine power. Contributing to the accident was the pilot's failure to adequately tighten the B-nut during recent maintenance.
- [NTSB CEN12LA512](https://openairdocs.org/ntsb/CEN12LA512.md): Piper PA-30 · Bragg City, MO · Accident · No injuries · Limited investigation · Final report · Jul 29, 2012 · N8121Y · Substantial damage
  > The pilot's failure to properly tighten the b-nut from the engine-driven fuel pump to the fuel-metering unit during maintenance, which resulted in a total loss of engine power due to fuel starvation.
- [NTSB ERA09LA098](https://openairdocs.org/ntsb/ERA09LA098.md): Hess John L Spezio II · Newville, PA · Accident · Minor injuries · Limited investigation · Final report · Dec 18, 2008 · N66JH · Substantial damage
  > A loss of engine power due to carburetor ice as a result of the pilot's delayed use of carburetor heat.
- [NTSB LAX08LA107](https://openairdocs.org/ntsb/LAX08LA107.md): Piper PA-30 · Holbrook, AZ · Accident · Serious injuries · Limited investigation · Final report · Apr 15, 2008 · N8442Y · Substantial damage
  > A total loss of engine power due to fuel starvation as a result of the pilot's fuel system mismanagement and incorrect positioning of the fuel selector valves.

## 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 ('41509')
    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=41509

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