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DEN85LA185 · Eiriavion OY PIK-20B

6 Jul 1985 · GRAND LAKE, CO, United States

Eiriavion OY PIK-20B · Accident: forced landing en route

From Lake County Airport (LXV) to an unrecorded destination

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Event

NTSB case
DEN85LA185
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
0 · all aircraft and ground
Ground fatalities
0
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Visual Meteorological Cond

Eiriavion OY PIK-20B

Aircraft type
Eiriavion Oy PIK-20
Category
Glider
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N563Y
Operator
William D. Ray · private individual
Onboard fatalities
Unknown
Route
From Lake County Airport (LXV), Leadville, COTo not recorded
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
En route · descent
First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Forced landing
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Substantial

Cause areas

  • Pilot in command › Directional control, not possible
  • Pilot in command › Proper altitude, not possible

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

ON RETURNING FROM A 300-KILOMETER CROSS-COUNTRY FLIGHT, IN A GLIDER THE PILOT NOTICED THE ABSENCE OF THERMAL ACTIVITY AND WAS FORCED TO LAND IN AN OPEN FIELD. THE PILOT SAID HE LANDED WITH A 2-5 KNOT TAILWIND AND HIS APPROACH AND TOUCHDOWN SPEED WAS TOO FAST. THE GLIDER STRUCK A SMALL HOLE, THE PILOT LOST CONTROL AND THE GLIDER GROUNDLOOPED.

Verbatim NTSB analysis from the NTSB dataset

Sources

NTSB record DEN85LA185
Event ID
20001214X37095
Case number
DEN85LA185
Dataset
historical-pre2008
Source SHA-256
89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: 0459f5969cff6aebf859668befa5797eed1d80d82bac36be7465a9bf4d914987; retrieved 2026-09-23T16:56:51.367Z.