# NTSB investigations: Hughes 269B: 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 CHI06LA124](https://openairdocs.org/ntsb/CHI06LA124.md): Hughes 269B · Sullivan, OH · Accident · No injuries · Limited investigation · Final report · May 3, 2006 · N9471F · Substantial damage
  > Fatigue failure of the fuselage-to-tail boom cluster fitting, and the secondary failure of the tail rotor drive shaft. An additional cause was the incomplete compliance with an applicable Airworthiness Directive. A factor was the ditch.
- [NTSB FTW91FA123](https://openairdocs.org/ntsb/FTW91FA123.md): Hughes 269B · Brickeys, AR · Accident · 1 fatal · Field investigation · Final report · Jul 18, 1991 · N11XC · Destroyed
  > The failure of the clutch control cable due to fraying which initiated the forced landing and the operator's failure to perform recommended inspections on the aircraft. Factors were the pilot's failure to maintain rotor RPM and the unsuitable terrain.
- [NTSB MIA89LA255](https://openairdocs.org/ntsb/MIA89LA255.md): Hughes 269B · Lexington, MS · Accident · Minor injuries · Limited investigation · Final report · Sep 21, 1989 · N9318F · Substantial damage
  > Fatigue failure of the linear actuator lug. A related factor was: trees in the emergency landing area.
- [NTSB FTW85FA050](https://openairdocs.org/ntsb/FTW85FA050.md): Hughes 269B · Clint, TX · Accident · 2 fatal · Field investigation · Final report · Nov 13, 1984 · N9336F · Destroyed
  > N9336F, crashed while on a training flt. The certified flt instructor & his student were killed. Investigation revealed that the main drive shaft thrust bearing had failed. A service bulletin dated 1968 mandated replacement of the bearing at 300 hr time in…
- [NTSB LAX84FA371](https://openairdocs.org/ntsb/LAX84FA371.md): Hughes 269B · Palos Verde Est, CA · Accident · 2 fatal · Field investigation · Final report · Jun 28, 1984 · N9400F · Destroyed
  > Gnd witnesses obsvd helicopter into normal turn at 500 ft AGL followed by a violent rt turn. During the violent turn the tail rotor assy separated & the main rotor blades coned upwards. The helicopter went into a near vertical descent & crashed. Wreckage exam…
- [NTSB CHI82DA327](https://openairdocs.org/ntsb/CHI82DA327.md): Hughes 269B · Medina, OH · Accident · No injuries · Final report · Aug 28, 1982 · N9307F · Destroyed
  > The pilot stated that shortly after takeoff, at about 800 feet AGL he felt a violent vibration lasting for 2 or 3 seconds. He reentered the downwind leg to the airport and experienced the vibration again. The aircraft then entered an uncontrollable spiral to…

## 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 ('4470502')
    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?model=4470502&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.