NTSB investigations: Hughes Helicopters HUGHES 369D, HI
37 cases on aircraft the registry lists as Hughes Helicopters HUGHES 369D. 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
| 1980 | 1 |
|---|---|
| 1984 | 1 |
| 1985 | 4 |
| 1987 | 2 |
| 1988 | 1 |
| 1990 | 3 |
| 1991 | 1 |
| 1992 | 1 |
| 1993 | 3 |
| 1994 | 3 |
| 1995 | 1 |
| 1996 | 1 |
| 1997 | 2 |
| 2001 | 1 |
| 2002 | 1 |
| 2003 | 2 |
| 2005 | 1 |
| 2006 | 1 |
| 2007 | 1 |
| 2013 | 1 |
| 2016 | 1 |
| 2018 | 1 |
| 2020 | 1 |
| 2024 | 1 |
| 2026 | 1 |
Where
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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.\"eventStateOrRegion\" = 'HI' 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 ('4470706'))
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.
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" = 'HI' 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 ('4470706'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB WPR26FA141Accident · 3 fatalClass 3 · FieldPreliminary reportHughes 369D · Haena, HIOn March 26, 2026, about 1539 Hawaii standard time, a Hughes 369D helicopter, N715KV, was substantially damaged when it was involved in an accident near Haena, Hawaii. The pilot and one passenger sustained serious injuries, and three passengers were fatally…NTSB ANC24LA016Accident · No injuriesClass 4 · LimitedFinal reportHughes 369D · Hana, HIThe pilot’s failure to ensure the passenger’s gear was properly secured before departure.NTSB ANC21LA003Accident · No injuriesClass 3 · LimitedFinal reportHughes 369 · Honolulu, HIA partial loss of engine power due to an obstructed fuel line as a result of the separation of the circlip from the pin used on the fuel start pump. The reason for the circlip separation could not be determined based on the available evidence.NTSB WPR18LA221Accident · No injuriesClass 2 · LimitedFinal reportHughes 369 · Honolulu, HIThe operator's improper installation of the tail rotor (TR) teeter bearings, which resulted in cascading in-flight failures of the TR components and attach hardware.NTSB WPR17FA021Accident · 2 fatalField investigationFinal reportHughes 369 · Pukoo, HIThe pilot's decision to continue visual flight into an area of instrument meteorological conditions at night in rain, which resulted in his geographic disorientation and controlled flight into terrain.NTSB WPR13CA406Accident · Minor injuriesData collectionFinal reportHughes 369D · Kalalau, HIThe entanglement of a tarp in the helicopter's main rotor from a nearby trash bundle.NTSB SEA07LA108Accident · Minor injuriesLimited investigationFinal reportHughes 369D · Kahuku, HIFatigue cracking of the oil line from the engine gearbox to the oil pressure gauge, which resulted in loss of engine lubricating oil, leading to seizure of the power turbine.NTSB LAX06TA259Accident · No injuriesFinal reportHughes 369D · Lahaina, HIthe pilot's failure to shut down the engine prior to exiting the helicopter resulting in the tail rotor contacting the ground. A contributing factor was the gusting wind conditions present at the accident site.NTSB LAX06IA011Incident · No injuriesIncident investigationFinal reportHughes 369D · Kahului, HIThe fatigue cracking and failure of the tail rotor control rod during cruise flight, which resulted in a hard landing during the precautionary landing.NTSB LAX04LA116Accident · No injuriesLimited investigationFinal reportHughes 369D · Wahiawa, HIThe pilot's failure to properly secure the external sling load, which allowed the load to shift, and subsequently strike and remove the tail rotor.NTSB LAX03LA212Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Kualapuu, HIthe total loss of engine power resulting from a fatigue failure of the 3rd stage turbine wheel airfoils. The reason for the airfoil's fatigue failure could not be determined.NTSB LAX03LA017Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Kaaawa, Oahu, HIDynamic rollover during an attempted takeoff, due to the combined effects of the soft sloping terrain and the pilot's failure to redistribute the passengers to a more favorable lateral CG condition.NTSB LAX02LA007Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Kahoolawe Isle, HIInadequate visual surveillance by the pilot before takeoff resulting in liftoff with a deplaning passenger still partially aboard the helicopter. A factor in the accident was the operator's inadequate procedures.NTSB LAX97LA176Accident · 2 fatalLimited investigationFinal reportHughes 369D · Puako, HIerosion of second stage stator vanes, inadequate maintenance inspection for the erosion, and subsequent fatigue failure of a stator vane, which resulted in loss of engine power and a forced landing on mountainous/hilly terrain. Also causal was: the pilot's…NTSB LAX97FA107Accident · Serious injuriesField investigationFinal reportHughes 369D · Milolii, HIfailure of the tail rotor for undetermined reason(s), resulting in tail rotor imbalance, separation of the tail rotor, and an autorotative landing on rough terrain with high vegetation. The lack of suitable terrain for a forced landing was a related factor.NTSB LAX97LA039Accident · No injuriesLimited investigationFinal reportMcDonnell Douglas 369D · Hana, HIsubsequent failure of the spur adapter gearshaft (SAG), after 'retaining ring to compressor impeller machining' occurred and allowed the SAG to shift aft. The mechanism which induced the ring to impeller machining was not determined. Mountainous terrain in…NTSB LAX95GA264Accident · 3 fatalFinal reportMcdonnell Douglas 369D · Hauula, HIthe pilot's poor judgement by intentionally flying into adverse weather conditions in mountainous terrain with an external load and no observer which resulted in loss of aircraft control. Factors were pressure from the conditions/events and a lack of total…NTSB LAX94LA241Accident · No injuriesLimited investigationFinal reportHughes 369D · Kaneohe, HIthe operator's and pilot's failure to ensure that the cargo net containing empty paper bags was sufficiently ballasted to prevent it from flying up into the tail rotor.NTSB LAX94FA197Accident · 1 fatalField investigationFinal reportHughes 369D · Hanapepe, HIInadequate turbine engine compressor cleaning procedures based on information in the manufacturer's service letter, and loss of engine power due to blockage of the fuel nozzle strainer with foreign material (sodium). Factors related to the accident were: the…NTSB LAX94LA174Accident · Minor injuriesLimited investigationFinal reportHughes 369D · Hi. Nat'L Park, HIthe pilot's in-flight decision to maneuver the helicopter close to an active volcano steam vent which resulted in a whiteout condition from the steam, and the pilot's subsequent loss of visual contact with the ground.NTSB LAX94LA076Accident · No injuriesLimited investigationFinal reportHughes 369D · Waimea, Kauai, HIAn inadequate engine compressor cleaning procedure specified in the manufacturer's service letter, which resulted in the total loss of engine power due to contamination, blockage, and collapse of the fuel nozzle inlet screen. Factors in the accident were: the…NTSB LAX93LA249Accident · No injuriesLimited investigationFinal reportHughes 369D · Kahului, HIThe failure of the pilot to maintain adequate ground obstruction clearance while engaged in a cattle herding operation.NTSB LAX93LA132Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Kahului, HIThe pilots failure to maintain an adequate visual lookout for obstructions while performing a low altitude surveillance operation in a mountainous area, and, his failure to select an altitude sufficient to ensure clearance from all potential obstacles.NTSB LAX93LA071Accident · No injuriesLimited investigationFinal reportHughes 369D · Hilo, HIThe bearing failures due to the operator's use of improper maintenance inspection and overhaul procedures by installing an unserviceable compressor module in the helicopter engine. Factors in the accident were the unsuitable nature of the terrain for the…NTSB LAX91T#A09Accident · Serious injuriesClass 3Final reportHughes 369 · Hilo, HINTSB LAX91LA058Accident · Minor injuriesLimited investigationFinal reportMcdonnell Douglas 369D · Keanae, HIFuel starvation caused by a loose fuel line 'b' nut, due to improper maintenance; and the failure of the pilot to correctly judge the landing flare during the autorotation.NTSB LAX91LA054Accident · 1 fatalLimited investigationFinal reportMcdonnell Douglas 369D · Haleakla Nat Pk, HIFuel starvation due to the unporting of the fuel supply pick-up.NTSB LAX90FA230Accident · No injuriesField investigationFinal reportHughes 369D · Hanapepe, HIFailure of pilot of the photographing helicopter to maintain clearance and avoid collision.NTSB LAX88LA179Accident · Serious injuriesLimited investigationFinal reportMcDonnell Douglas 369D · Waialua, HIFailure to follow procedures established by the manufacture for uncommanded trim inputs and his decision to make a hover approach to landing.NTSB LAX88LA043Accident · No injuriesLimited investigationFinal reportHughes 369D · Honolulu, HIThe plt rprtd that during an external load operation, the helicopter ran out of fuel. Subsequently, it was damaged when it touched down hard during a forced landing.NTSB LAX87FA112Accident · 1 fatalField investigationFinal reportHughes 369D · Honolulu, HIDrg tkof clb, a loud noise occurred as 1 of 5 main rotors (mrb's) & the tail boom sepd fm the helicopter (hel). The hel then crashed & hit a submerged reef aprx 200' fm the heliport. An exam of the failed mrb showed its retention strap assy(rsa), pn…NTSB LAX86LA043Accident · No injuriesLimited investigationFinal reportHughes 369D · Kunia, Oahu, HIWhile cruising the plt detected a loss of engine power & elected to make a precautionary landing. During landing flare engine power was lost & the acft touched down hard & with excessive ground speed. Exam of the acft's fuel control valve governor failed to…NTSB LAX85FJA03Accident · No injuriesFinal reportHughes 369D · Hilo, HIThe helicopter tail boom was damaged by the main rotor blades during a forced autorotative landing. The plt reported that shortly after takeoff at an alt of 4500 ft MSL, the eng N2 dropped to 92% and aprx 15 seconds later, the eng flamed out. Investigation…NTSB LAX85FA136Accident · 1 fatalField investigationFinal reportHughes 369D · Hilo, HIA search was initiated when the helicopter did not arrive. It was fnd 2 days later where it crashed drg an autorotation in a rain forest. Drg the flare/touchdown, vegetation had caught on a tundra pad on the l skid & the acft rolled over. An exam revealed the…NTSB LAX85LA116Accident · Minor injuriesLimited investigationFinal reportHughes 369D · Makakilo, HIOn an air taxi flt, after landing at a prearranged site the plt signaled to his 3 pax to board the helicopter. As the pax attempted to board from the right side of the acft, the rotor blades went out of track/phase. The acft began uncontrollable bouncing up…NTSB LAX84LA314Accident · No injuriesLimited investigationFinal reportHughes 369D · Honolulu, HIThe helicopter experienced a tail rotor failure shortly after departing the airport on a VFR local sling loading flt. The plt stated that, 'at approx 500 ft asl on climb out experienced sudden, severe vibration. Made a 180 degree turn to return to airport &…NTSB LAX81FA017Accident · 1 fatalClosedHughes 369D · Kaaawa, HI