# NTSB CHI86FEE05: Eipper Mxii, N4976X, Aurora, IL, July 4, 1986

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: July 4, 1986, 15:30 local (20:30 UTC)
- Place: Aurora, IL
- Location: 41.7606° N, 88.3201° W: Placed by OpenAirDocs: center of Aurora, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.7606&lon=-88.3201&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report January 25, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 13289
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI86FEE05
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13289/pdf
- Page: https://openairdocs.org/ntsb/CHI86FEE05

## Sequence of events

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

- Airframe/component/system failure/malfunction, cruise - normal
  - misc eqpt/furnishings - deployed inadvertently (cause)
  - misc eqpt/furnishings - failure,total (cause)
- Loss of control - in flight, cruise - normal
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

DURING CRUISE FLIGHT THE ULTRALIGHT EXPERIENCED AN INADVERTENT DEPLOYMENT OF THE DRAG CHUTE ACCOMPANIED BY A FAILURE OF THE DRAG CHUTE TO INFLATE. THIS RESULTED IN AN UNCONTROLLED DESCENT AND SUBSEQUENT IMPACT WITH THE TERRAIN.

## Aircraft

- Registration: [N4976X](https://openairdocs.org/deregistered/N4976X-1988-06-24), registration cancelled 1988-06-24, S/N 1903 (OpenAirDocs)
- Reported make and model: EIPPER MXII
- Registry model: [Ultralight Air QUICKSILVER MX II](https://openairdocs.org/model/ultralight-air-quicksilver-mx-ii) (registry code 05675WC) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 1903
- Airframe hours: 180
- Engines: ROTAX 503 46 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Dennis W. Stacy
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, September 19, 1984, 65 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; private; airplane ratings: single-engine land; medical: class 3, expired; seat: left; flight hours: 286 total, 163 in this make and model, 255 as pilot in command, 21 in the last 90 days, 8 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 210° at 15 knots
- Visibility: 7 statute miles
- Lowest ceiling: 25,000 ft broken
- Temperature: 86 °F, dew point 72 °F
- Altimeter: 29.00 inHg
- Observed at: DPA, 11 nm away

## 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 19860704030409A](https://openairdocs.org/incident/19860704030409A), Jul 4, 1986: Amtr MX2, Aurora, IL, Substantial damage. Ultralight parachute vibrated out of cannister and lines became tangled. Cable caused propeller blade to break.

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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