# NTSB SEA82FYA07: Hughes 369HS, N9184F, Gooding, ID, May 6, 1982

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: May 6, 1982, 07:45 local (13:45 UTC)
- Place: Gooding, ID
- Coordinates: 45.899208, -116.129547 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.8992&lon=-116.1295&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report May 6, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 70847
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA82FYA07
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/70847/pdf
- Page: https://openairdocs.org/ntsb/SEA82FYA07

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power(total) - mech failure/malf, maneuvering - aerial application
  - turboshaft engine,gas generator turbine shaft - worn (contributing factor)
  - turboshaft engine,gas generator turbine shaft - fatigue (cause)
- Forced landing, landing - flare/touchdown
  - autorotation - initiated, pilot in command
- Hard landing, landing - flare/touchdown
- Roll over, landing - flare/touchdown

## Analysis

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.

## Aircraft

- Registration: [N9184F](https://openairdocs.org/deregistered/N9184F-1990-12-18), registration cancelled 1990-12-18, S/N 540599S (OpenAirDocs)
- Reported make and model: HUGHES 369HS
- Registry model: [Hughes 369HS](https://openairdocs.org/model/hughes-369hs) (registry code 4470728) (OpenAirDocs)
- Category: Helicopter
- Serial number: 540599S
- Airframe hours: 2500
- Engines: ALLISON 250-C20 400 horsepower turbo shaft
- Damage: Destroyed
- Flight: Aerial application, Part 137
- Operator: Thomas Heli
- Registered owner: Thomas Heli
- Departed: GOODING, ID
- Destination: GOODING, ID

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; flight hours: 3,091 total, 2,000 in this make and model, 3,001 as pilot in command, 46 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 50 statute miles
- Temperature: 104 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19820506014089A](https://openairdocs.org/incident/19820506014089A), May 6, 1982: Hughes 369HS, Gooding, ID, Substantial damage. Engine failed on pull up from a swath run. Spur adapter gear shaft failure from metal fatigue. Rolled on landing.

## Other investigations on N9184F (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX75FUA24](https://openairdocs.org/ntsb/LAX75FUA24), Mar 28, 1975: Hughes 369HS (N9184F), Long Beach, CA, substantial damage

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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