# NTSB SEA83FU002: Eipper Quicksilver MX, Sumner, WA, May 29, 1983

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: May 29, 1983, 13:45 local (20:45 UTC)
- Place: Sumner, WA
- Coordinates: 47.210037, -122.230705 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=47.2100&lon=-122.2307&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): 39636
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA83FU002
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/39636/pdf
- Page: https://openairdocs.org/ntsb/SEA83FU002

## Analysis

THE ACFT COLLIDED WITH A TREE AND CRASHED INTO A PARKING LOT WHEN THE ENGINE QUIT DURING A LOW PASS MANEUVER NEAR A MEMORIAL DAY CROWD IN A PARK. THE ULTRALIGHT ACFT WAS DESTROYED AND THE PILOT WAS SERIOUSLY INJURED. WITNESSES DESCRIBEDTHE ACFT DOING WING-OVER MANEUVERS OVER THE LAKE AND MAKING A SECOND PASS OVER THE BOAT RAMP PARK WHEN THE MISHAP OCCURRED. ONE WITNESS STATED THE ENGINE STOPPED AND THE PILOT REACHED OVER HIS HEAD IN AN APPARENT ATTEMPT TO RESTART THE ENGINE. THIS ACFT HAD 2 FUEL CONTAINERS. THE MAIN TANK WAS TURNED ON (PETCOCK OPEN) BUT IT WAS EMPTY OF FUEL. THE OTHER TANK WAS HALF FULL BUT OFF (PETCOCK CLOSED). THE ACFT COLLIDED WITH THE TREE WHILE THE PILOT WAS TRYING TO RESTARTTHE ENGINE. THE ACFT HAD ONLY BEEN FLYING A FEW MINUTES BEFORE THE ACCIDENT.

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, maneuvering
  - fluid,fuel - starvation (cause)
  - fuel system - improper use of, pilot in command (cause)
- Forced landing, landing
  - emergency procedure - initiated, pilot in command
- In flight collision with object, landing - flare/touchdown
  - object - tree(s) (contributing factor)

## Aircraft

- Registration: UNREG (not matched to a registry record)
- Reported make and model: EIPPER QUICKSILVER MX (QUICKSILVE)
- Category: Ultralight
- Airframe hours: 35
- Engines: CUYUNA 1 35 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 103
- Registered owner: William G. Karras

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 59; private, commercial; airplane ratings: single-engine land; medical: unknown; seat: front; flight hours: 25 in the last 90 days, 15 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 135° at 5 knots
- Visibility: 29 statute miles
- Lowest ceiling: none
- Temperature: 81 °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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