SEA82FYA07 · Hughes 369HS
Hughes 369HS · Accident: total loss of engine power (mechanical failure) while maneuvering
From Gooding, ID to Gooding, ID
Event
- NTSB case
- SEA82FYA07
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- 0
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Hughes 369HS
- Aircraft type
- Hughes 369
- Category
- Helicopter
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N9184F
- Operator
- Thomas Heli
- Onboard fatalities
- Unknown
- Route
- From Gooding, IDTo Gooding, ID
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 137: Agricultural
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Maneuvering · aerial application
- First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Total loss of engine power (mechanical failure)
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Cause areas
- Turboshaft engine, gas generator turbine shaft › Fatigue
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
WHILE MAKING A TURN AT THE END OF A SWATH RUN, THE PILOT HEARD A BANG AND THEN NOTICED A LOSS OF ENGINE POWER. HE ENTERED AN AUTOROTATIVE LANDING FROM A LOW ALTITUDE AT LOW AIRSPEED. SUBSEQUENTLY, THE HELICOPTER LANDED HARD AND ROLLED OVER ON ITS RIGHT SIDE. AN INVESTIGATION REVEALED THAT THE SPUR ADAPTER GEARSHAFT HAD FAILED FROM FATIGUE. THE FATIGUE INITIATED ON THE LOADED SIDE OF A SPLINE TOOTH AT AN AREA OF HEAVY WEAR. TOTAL FLIGHT TIME OF THE FAILED PART WAS 3491 HRS. THE SPUR ADAPTER COUPLER THE COMPRESSOR TO THE N1 TURBINE.
Verbatim NTSB analysis from the NTSB dataset
Sources
NTSB record SEA82FYA07
- Event ID
- 20020917X04163
- Case number
- SEA82FYA07
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 7eacad80d5b20404159e2ba5116654b21a74083a3ba7241f69dbb2c69f1538d4; retrieved 2026-09-21T18:16:00.177Z.