NTSB investigations: Hughes 500D

6 cases on aircraft the registry lists as Hughes 500D. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.

Cases per year

19802026
NTSB investigations: Hughes 500D per year, 1980–2026: 6 cases
19801
19821
19861
19951
20031
20221

Latest cases

Query with SQL
duckdb -csv -c "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 ('4470806'))
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

NTSB CEN22LA146Accident · Minor injuriesClass 3 · LimitedFinal reportHughes 369 · Adair, IAThe mechanic’s failure to properly torque a fuel control unit B-nut, which resulted in a partial loss of engine power, an attempted autorotation, and an impact with terrain.Mar 17, 2022 · N500MZ · Substantial damageNTSB LAX03FA200Accident · 4 fatalField investigationFinal reportMcDonnell Douglas 369D · Volcano, HIa loss of engine power due to the fatigue fracture and separation of the compressor coupling adapter. The fatigue fracture was initiated by fretting on the pilot diameter due to both the inadequate design of the coupling and the coaxial misalignment of the…Jun 15, 2003 · N4493M · DestroyedNTSB ANC95LA075Accident · Minor injuriesLimited investigationFinal reportHughes 500D · Ketchikan, AKAn air leak at a 'b' nut fitting on a pneumatic pc tube to the power turbine governor. Company maintenance personnel did not detect a leak after performing maintenance on the governer and P2 air line.Jun 12, 1995 · N549SW · Substantial damageNTSB FTW86LA152Accident · No injuriesLimited investigationFinal reportHughes 369-500D · Fort Stockton, TXThe helicopter pilot entered autorotation after experiencing fuel exhaustion. The pilot knew he was low on fuel, but was depending on his warning light to indicate low fuel. The warning light never came on. On touchdown the tail rotor struck the ground…Aug 20, 1986 · N4493M · Substantial damageNTSB ANC82DA062Accident · 1 fatalFinal reportHughes 369D · Near Bornite, AKTwo workers were transported to a mine drilling site where the helicopter was landed on a man-made heli-pad. The heli-pad was an area about 50 ft long and 12 ft wide that had been cut into the side of a rocky hill. After off-loading the workers, the pilot…Jul 28, 1982 · N820Y · DestroyedNTSB DEN80FTC12Accident · Minor injuriesClosedHughes 369D · Chugwater, WYApr 9, 1980 · N49667 · Destroyed