# NTSB investigations: Enstrom F-28A, TX

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 CEN20LA051](https://openairdocs.org/ntsb/CEN20LA051.md): Enstrom F28 · Danbury, TX · Accident · No injuries · Class 3 · Limited · Final report · Dec 31, 2019 · N57SJ · Substantial damage
  > The failure of the engine's No.3 intake valve resulting is a loss of engine power and a rollover following the autorotation to soft ground.
- [NTSB CEN13LA437](https://openairdocs.org/ntsb/CEN13LA437.md): Enstrom F-28A · Danbury, TX · Accident · Serious injuries · Limited investigation · Final report · Jul 26, 2013 · N287Q · Substantial damage
  > The loss of collective control for reasons that could not be determined due to extensive fire damage.
- [NTSB CEN13LA360](https://openairdocs.org/ntsb/CEN13LA360.md): Enstrom F-28A · Danbury, TX · Accident · No injuries · Limited investigation · Final report · Jun 19, 2013 · N485PM · Destroyed
  > The total loss of engine power due to the failure of a connecting rod for reasons that could not be determined during postaccident examination.
- [NTSB CEN12CA647](https://openairdocs.org/ntsb/CEN12CA647.md): Enstrom F-28A · Fort Worth, TX · Accident · No injuries · Data collection · Final report · Sep 16, 2012 · N194E · Substantial damage
  > The noncertificated pilot's operation of the helicopter, which resulted in the tail boom's contact with the refueling pump.
- [NTSB DFW07CA053](https://openairdocs.org/ntsb/DFW07CA053.md): Enstrom F28A · Bruceville, TX · Accident · No injuries · Data collection · Final report · Jan 5, 2007 · N764PC · Substantial damage
  > The instructor pilot's improper demonstration of an autorotation, resulting in the helicopter's main rotor blades impacting the ground.
- [NTSB FTW96LA149](https://openairdocs.org/ntsb/FTW96LA149.md): Enstrom F-28A · Killeen, TX · Accident · Minor injuries · Limited investigation · Final report · Mar 16, 1996 · N9574 · Substantial damage
  > The pilot's improper planning/decision, which resulted in fuel exhaustion and a loss of engine power, due to an inadequate supply of fuel. A factor relating to the accident was: lack of suitable terrain for an emergency landing (autorotation).
- [NTSB FTW90LA099](https://openairdocs.org/ntsb/FTW90LA099.md): Enstrom F-28A · Danbury, TX · Accident · Minor injuries · Limited investigation · Final report · Apr 22, 1990 · N287Q · Substantial damage
  > Pilot in command's failure to see and avoid wires during the final stage of an approach to a confined area. A contributing factor to the accident was the pilot's disregard of the operator's instructions after he landed the first time.
- [NTSB FTW88DRG11](https://openairdocs.org/ntsb/FTW88DRG11.md): Enstrom F28A · Port Isabel, TX · Accident · No injuries · Final report · Jul 16, 1988 · N9087 · Substantial damage
  > The pilot reported that he had accomplished a max-performance takeoff, cleared an obstacle, and when he attempted forward flight, the main rotor RPM decreased. He stated he was unable to recover the RPM and maintain altitude so he selected a landing area. Due…
- [NTSB FTW79FA078](https://openairdocs.org/ntsb/FTW79FA078.md): Enstrom F-28A · Friendswood, TX · Accident · No injuries · Closed · May 5, 1979 · N254Q · Substantial damage
- [NTSB FTW77FQG48](https://openairdocs.org/ntsb/FTW77FQG48.md): Enstrom F-28A · Lubbock, TX · Accident · No injuries · Closed · Aug 18, 1977 · N286Q · Substantial damage
- [NTSB FTW76FRG83](https://openairdocs.org/ntsb/FTW76FRG83.md): Enstrom F-28A · Brownsville, TX · Accident · Minor injuries · Closed · Aug 12, 1976 · N9057 · Destroyed
- [NTSB FTW76FRA16](https://openairdocs.org/ntsb/FTW76FRA16.md): Enstrom F-28A · Houston, TX · Accident · No injuries · Closed · Nov 3, 1975 · N494H · Substantial damage
- [NTSB FTW75FPA10](https://openairdocs.org/ntsb/FTW75FPA10.md): Enstrom F-28A · Dallas, TX · Accident · No injuries · Closed · Sep 14, 1974 · N4894 · Substantial damage
- [NTSB FTW74DRG67](https://openairdocs.org/ntsb/FTW74DRG67.md): Enstrom F-28A · Olmito, TX · Accident · No injuries · Closed · Feb 26, 1974 · N9057 · Substantial damage

## 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."eventStateOrRegion" = 'TX' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3300406'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=3300406&state=TX

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