# NTSB investigations: Franklin 6A4150 series: Loss of engine power(total) - mech failure/malf

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 CHI03LA306](https://openairdocs.org/ntsb/CHI03LA306.md): Bellanca 14-13-2 · Moline, IL · Accident · No injuries · Limited investigation · Final report · Sep 6, 2003 · N74467 · Substantial damage
  > The partial failure of the engine driven fuel pump and fuel starvation. An additional cause was the pilot misjudging the proper glidepath and his improper in-flight decision during the precautionary landing to pull back the power and lower the flaps prior to…
- [NTSB LAX03FA108](https://openairdocs.org/ntsb/LAX03FA108.md): Stinson 108-1 · Eloy, AZ · Accident · Minor injuries · Field investigation · Final report · Mar 7, 2003 · N8344K · Substantial damage
  > a loss of engine power caused by the fatigue failure of the number 4 cylinder exhaust valve.
- [NTSB LAX97LA134](https://openairdocs.org/ntsb/LAX97LA134.md): Bellanca 14-13 · Oroville, CA · Accident · No injuries · Limited investigation · Final report · Mar 28, 1997 · N86851 · Substantial damage
  > a loss of engine power due to connecting rod bolt failure. The reason for the bolt failure was not determined. A contributing factor was the presence of trees in the emergency landing path.
- [NTSB MIA89LA069](https://openairdocs.org/ntsb/MIA89LA069.md): Bellanca 14-13-2 · Sebring, FL · Accident · No injuries · Limited investigation · Final report · Jan 13, 1989 · N74473 · Substantial damage
  > Failure of the cam gear snap ring, which allowed the camshaft gear to become disconnected. Factors related to the accident were trees in the emergency landing area.
- [NTSB ANC88LA126](https://openairdocs.org/ntsb/ANC88LA126.md): Stinson 108 · Mt Spur, AK · Accident · No injuries · Limited investigation · Final report · Sep 5, 1988 · N97326 · Substantial damage
  > At 1500 feet m.s.l. a complete engine failure occurred. An emergency landing was made on a gravel bar. During the rollout the airplane collided with a gravel bank. An on site examination of the engine revealed a hole in the case next to the left exhaust…
- [NTSB LAX87LA148](https://openairdocs.org/ntsb/LAX87LA148.md): Stinson 108-1 · Rio Vista, CA · Accident · No injuries · Limited investigation · Final report · Mar 17, 1987 · N97115 · Substantial damage
  > The aircraft nosed over in soft soil after a forced landing. The aircraft's engine failed during the departure climb and the pilot was unable to restart it. The pilot accomplished a forced landing to a field. The aircraft nosed over when the nose gear became…
- [NTSB LAX84LA358](https://openairdocs.org/ntsb/LAX84LA358.md): Bellanca 14-13 · Sacramento, CA · Accident · No injuries · Limited investigation · Final report · Jun 17, 1984 · N74200 · Substantial damage
  > The plt reported that the fuel pump failed in flt & he made an emergency landing on a private strip. He said that he landed hard & the acft nosed over.
- [NTSB ANC82DAG29](https://openairdocs.org/ntsb/ANC82DAG29.md): Stinson 181 · Talkeetna, AK · Accident · Serious injuries · Final report · May 31, 1982 · N108TM · Substantial damage
  > The pilot made a forced landing after a spark plug blew out of the engine. During the landing the aircraft collided with a tree.

## 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 ('27024')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 351))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27024&occurrence=351

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