# NTSB investigations: Wright R-1820 series: Airframe/component/system failure/malfunction

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 MIA04LA092](https://openairdocs.org/ntsb/MIA04LA092.md): North American T-28B · Wesley Chapel, FL · Accident · 1 fatal · Limited investigation · Final report · Jun 3, 2004 · N261FM · Substantial damage
  > The pilot's failure to verify security of the left engine cowling and its subsequent separation in-flight and collision with the vertical stabilizer resulting in the loss of aircraft control.
- [NTSB LAX03FA162](https://openairdocs.org/ntsb/LAX03FA162.md): North American T28C · Sherman Oaks, CA · Accident · 2 fatal · Field investigation · Final report · May 24, 2003 · N537Z · Destroyed
  > The pilot's in-flight loss of control due to spatial disorientation. Factors in the accident were the distraction caused by the malfunctioning mode C altitude reporting system, and the location of the transponder control head, which necessitated repeated…
- [NTSB FTW95FA278](https://openairdocs.org/ntsb/FTW95FA278.md): North American T-28B · Ramah, CO · Accident · 2 fatal · Field investigation · Final report · Jul 9, 1995 · N28TP · Destroyed
  > The aircrew allowed the airplane's design stress limits to be exceeded.
- [NTSB NYC90DNE01](https://openairdocs.org/ntsb/NYC90DNE01.md): North American T-28B · New Braintree, MA · Accident · No injuries · Final report · Oct 28, 1989 · N504GH · Substantial damage
  > The failure of the nose gear, which failed to retract with the main landing gear after takeoff; the gear was observed to be misaligned, and collapsed during the aircraft's touchdown.
- [NTSB MIA89LA057](https://openairdocs.org/ntsb/MIA89LA057.md): Sikorsky S-58B · Kissimmee, FL · Accident · No injuries · Limited investigation · Final report · Dec 23, 1988 · N45726 · Substantial damage
  > The plt stated that he was repositioning the acft for fuel, and during a practice autorotation attempt the engine hydro-mechanical clutch failed. It did not re-engage upon the application of power and the acft was landed hard.
- [NTSB LAX85FJA06](https://openairdocs.org/ntsb/LAX85FJA06.md): Emroth Emair MA-1B · Pahala, HI · Accident · 1 fatal · Final report · Aug 26, 1985 · N1012Y · Destroyed
  > Witnesses reported seeing pieces of wood and fabric coming off the acft during it's second swath run. At the end of the run, the acft climbed abruptly to clear trees after which it entered an uncontrolled descent to ground impact. The acft was destroyed by…
- [NTSB FTW84LA136](https://openairdocs.org/ntsb/FTW84LA136.md): Sikorsky S-58E · Morgan City, LA · Accident · Serious injuries · Limited investigation · Final report · Feb 13, 1984 · N70709 · Substantial damage
  > The helicopter was hovering above trees at about 100 ft AGL when the tail rotor chip detector lgt flickered svrl times, then illuminated steadily. This was followed by a loud grinding noise from the tail area & the acft yawed to the right. The acft entered an…

## 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 ('67020')
    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" = 130))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=67020&occurrence=130

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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.