# NTSB MKC84LU005: UFM Easy Riser, Des Moines, IA, July 7, 1984

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: July 7, 1984, 10:30 local (15:30 UTC)
- Place: Des Moines, IA
- Coordinates: 41.649295, -93.619018 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.6493&lon=-93.6190&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 33801
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC84LU005
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33801/pdf
- Page: https://openairdocs.org/ntsb/MKC84LU005

## Sequence of events

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

- Loss of control - in flight, maneuvering
  - maneuver - initiated, pilot in command
  - airspeed - inadequate, pilot in command (cause)
  - stall/spin - inadvertent, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE ULTRALIGHT WAS MAKING TURNS AT LOW ALT WHEN IT STALLED AND SPUN INTO THE GROUND. THE PLT WAS UNABLE TO RECOVER BEFORE GROUND IMPACT.

## Aircraft

- Registration: UNREG (not matched to a registry record)
- Reported make and model: UFM EASY RISER
- Category: Ultralight, amateur-built
- Engines: YAMAHA 100 15 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 103
- Registered owner: Randy D. Stackhouse

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; airplane ratings: single-engine land; medical: unknown; seat: center; flight hours: 100 total, 100 in this make and model, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 90° at 10 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 75 °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.

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