# NTSB investigations: Piper PA-25-235: 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 CEN17LA372](https://openairdocs.org/ntsb/CEN17LA372.md): Piper PA 25-235 · Westphalia, KS · Accident · No injuries · Limited investigation · Final report · Sep 28, 2017 · N7336Z · Substantial damage
  > A total loss of engine power due to a fatigue failure of the crankshaft that resulted from main bearing shift and lack of lubrication.
- [NTSB CEN15LA297](https://openairdocs.org/ntsb/CEN15LA297.md): Piper PA 25-235 · Galveston, TX · Accident · Serious injuries · Limited investigation · Final report · Jun 28, 2015 · N94MC · Substantial damage
  > The loss of engine power due to a failure of a crankshaft idler gear shaft.
- [NTSB CEN14LA261](https://openairdocs.org/ntsb/CEN14LA261.md): Piper PA-25-235 · Boulder, CO · Accident · Minor injuries · Limited investigation · Final report · May 28, 2014 · N8808L · Substantial damage
  > The pilot's failure to adequately monitor the airplane's actual fuel consumption rate, which resulted in a total loss of engine power due to fuel exhaustion.
- [NTSB ERA13LA174](https://openairdocs.org/ntsb/ERA13LA174.md): Piper PA-25-235 · Panama City, FL · Accident · Minor injuries · Limited investigation · Final report · Mar 18, 2013 · N86AB · Substantial damage
  > A loss of preload to the crankshaft gear attachment bolt, resulting in rotation of the crankshaft gear and a subsequent total loss of engine power. The root cause for the loss of preload could not be determined during a postaccident examination of the…
- [NTSB CEN12LA622](https://openairdocs.org/ntsb/CEN12LA622.md): Piper PA-25-235 · Jasper, MO · Accident · No injuries · Limited investigation · Final report · Sep 6, 2012 · N7655Z · Substantial damage
  > The total loss of engine power due to separation of a carburetor air box support bracket and subsequent airflow obstruction to the carburetor.
- [NTSB ERA12LA474](https://openairdocs.org/ntsb/ERA12LA474.md): Piper PA-25-235 · Westerly, RI · Accident · Minor injuries · Limited investigation · Final report · Jul 23, 2012 · N7313Z · Substantial damage
  > A total loss of engine power for reasons that could not be determined due to the postaccident salt water-damaged state of the engine.
- [NTSB CEN12LA437](https://openairdocs.org/ntsb/CEN12LA437.md): Piper PA-25-235 · Mott, ND · Accident · No injuries · Limited investigation · Final report · Jul 12, 2012 · N8801L · Substantial damage
  > The rupture of a corroded oil line, which resulted in a total loss of engine power due to oil starvation.
- [NTSB ERA09LA490](https://openairdocs.org/ntsb/ERA09LA490.md): Piper PA-25-235 · Bainbridge, GA · Accident · No injuries · Limited investigation · Final report · Aug 27, 2009 · N7339Z · Substantial damage
  > A total loss of engine power due to the loss of camshaft timing as a result of the displacement of the idler gear assembly.
- [NTSB ERA09LA380](https://openairdocs.org/ntsb/ERA09LA380.md): Piper PA-25-235 · Westerly, RI · Accident · No injuries · Limited investigation · Final report · Jul 4, 2009 · N4898Y · Substantial damage
  > The pilot's failure to use carburetor heat resulting in a complete loss of engine power due to carburetor icing.
- [NTSB ERA09LA131](https://openairdocs.org/ntsb/ERA09LA131.md): Piper PA-25-235 · Pensacola, FL · Accident · 1 fatal · Limited investigation · Final report · Jan 6, 2009 · N7160Z · Substantial damage
  > The pilot’s failure to maintain airspeed following a total loss of engine power during a low-level approach, which resulted in an aerodynamic stall. Contributing to the accident was fuel exhaustion due to the pilot’s inadequate preflight planning.

## 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 ('7102504')
    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" = '341' 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/341/sequence?model=7102504

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