# NTSB investigations: Continental GTSIO-520-C: Loss of engine power(partial) - 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 LAX07FA035](https://openairdocs.org/ntsb/LAX07FA035.md): Cessna 421B · Big Bear Lake, CA · Accident · 3 fatal · Field investigation · Final report · Nov 14, 2006 · N642BD · Destroyed
  > Failure of the turbine wheel shaft in the left turbocharger during the takeoff initial climb for undetermined reasons, and the pilot's failure to attain and maintain safe single engine airspeed that led to a loss of control.
- [NTSB DEN04CA096](https://openairdocs.org/ntsb/DEN04CA096.md): Cessna T210J · Cheyenne, WY · Accident · Minor injuries · Data collection · Final report · Jul 3, 2004 · N2KD · Substantial damage
  > the detachment of the nut and bolt that attaches the throttle control cable to the fuel induction due to improper maintenance. Contributing factors were the fiber optics wire, fence, and ditch, and the unavailability of suitable terrain on which to make a…
- [NTSB ANC98FA019](https://openairdocs.org/ntsb/ANC98FA019.md): Cessna 207 · Homer, AK · Accident · 1 fatal · Field investigation · Final report · Feb 6, 1998 · N91029 · Destroyed
  > A fatigue failure, and partial separation of the number 6 engine cylinder head assembly, the operator's inadequate progressive inspection performed by company maintenance personnel, and the pilot's inadvertent stall during a maneuvering turn toward an…
- [NTSB LAX91LA129](https://openairdocs.org/ntsb/LAX91LA129.md): Cessna 421B · Tucson, AZ · Accident · Serious injuries · Limited investigation · Final report · Mar 12, 1991 · N924MD · Substantial damage
  > The fatigue failure of the right engine turbo exhaust clamp, and, the failure of the flying pilot to complete the single engine emergency procedures in a timely manner. A factor in the accident was the failure of the pilot in command to adequately supervise…
- [NTSB LAX90FA311](https://openairdocs.org/ntsb/LAX90FA311.md): Cessna 411 · Fallon, NV · Accident · 1 fatal · Field investigation · Final report · Sep 3, 1990 · N7321U · Destroyed
  > Failure of the pilot to perform emergency procedures for loss of engine power (including his failure to feather the propeller of the affected engine). Factors related to the accident were: inadequate maintenance, contamination in the fuel system, and overheat…
- [NTSB LAX89LA217](https://openairdocs.org/ntsb/LAX89LA217.md): Cessna 421 · Picacho, AZ · Accident · Minor injuries · Limited investigation · Final report · Jun 17, 1989 · N421S · Destroyed
  > Failure of the number three exhaust valve on the left engine. A major factor was the high density altitude where the airplane would not operate on single engine.
- [NTSB LAX87FA151](https://openairdocs.org/ntsb/LAX87FA151.md): Cessna T210K · Prescott, AZ · Accident · Serious injuries · Field investigation · Final report · Mar 20, 1987 · N8105G · Destroyed
  > After overloading the aircraft with 5 pax and baggage, the pilot departed on a personal cross country flight to phoenix, AZ. He climbed the acft to and maintained an altitude of 14,500 feet MSL until reaching salt lake city, UT. The aircraft was then…
- [NTSB DEN84FA004](https://openairdocs.org/ntsb/DEN84FA004.md): Cessna 421C · Center, CO · Accident · No injuries · Field investigation · Final report · Oct 9, 1983 · N770JW · Substantial damage
  > The acft collided with a dirt bank after a left engine overspeed and loss of directional control during takeoff. The plthad already aborted one takeoff due to overboost and a sticking wastegate. The problem seemed corrected after work and lubrication by a…

## 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 ('17035')
    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" = 352))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=17035&occurrence=352

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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.