# NTSB LAX82FUJ40: Hughes 369D, N1089S, Teec Nos Pos, AZ, April 28, 1982

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: April 28, 1982, 14:20 local (21:20 UTC)
- Place: Teec Nos Pos, AZ
- Location: 36.9334° N, 109.0641° W: Placed by OpenAirDocs: center of Teec Nos Pos, AZ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.9334&lon=-109.0641&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 2 minor
- Status: Completed, report April 28, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72799
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX82FUJ40
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72799/pdf
- Page: https://openairdocs.org/ntsb/LAX82FUJ40

## 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, cruise - normal
  - compressor assembly - failure,partial (cause)
- Forced landing, landing - flare/touchdown
  - autorotation - performed, pilot in command
- Roll over, landing - flare/touchdown
  - terrain condition - rough/uneven (contributing factor)

## Analysis

THE ACFT LOST ENG POWER & CRASHED WHILE ATTEMPTING AN AUTOROTATION. ENG TEARDOWN REVEALED THAT THE #2 BEARING FAILED AS A RESULT OF SOME OF THE BALL RETAINERS BEING BROKEN & CRACKED BETWEEN THE BALL POCKETS. THIS CONDITION ALLOWED THE IMPELLER ASSEMBLY TO MOVE FORWARD CONTACTING THE DIFFUSER ASSEMBLY RESULTING IN A LOSS OF ENG OPERATING POWER.

## Aircraft

- Registration: [N1089S](https://openairdocs.org/deregistered/N1089S-1990-09-12), registration cancelled 1990-09-12, S/N 510963D (OpenAirDocs)
- Reported make and model: HUGHES 369D
- Registry model: [Hughes Helicopters HUGHES 369D](https://openairdocs.org/model/hughes-helicopters-hughes-369d) (registry code 4470706) (OpenAirDocs)
- Category: Helicopter
- Serial number: 510963D
- Airframe hours: 151
- Engines: ALLISON 250-C20B 250 horsepower turbo shaft
- Damage: Substantial damage
- Flight: Business, Part 91
- Operator: Hughes Heli. Inc.
- Registered owner: Hughes Heli. Inc.
- Departed: C, PAGE, AZ
- Destination: C, FARMINGTON, NM

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 49; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; flight hours: 9,620 total, 2,020 in this make and model, 50 in the last 90 days, 7 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 300° at 7 knots
- Visibility: 50 statute miles
- Temperature: 167 °F

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.

---
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.