# NTSB CHI84LA309: Glasflugel Libelle, N1106B, Osseo, MI, July 1, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 1, 1984, 16:15 local (20:15 UTC)
- Place: Osseo, MI
- Coordinates: 41.82022, -84.529365 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.8202&lon=-84.5294&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12707
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84LA309
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12707/pdf
- Page: https://openairdocs.org/ntsb/CHI84LA309

## Sequence of events

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

- On ground/water encounter with terrain/water, landing
  - in-flight planning/decision - improper, pilot in command (cause)
  - precautionary landing - performed, pilot in command
  - unsuitable terrain or takeoff/landing/taxi area - selected, pilot in command (cause)
  - terrain condition - high vegetation (contributing factor)

## Analysis

THE PLT STATED THAT THE THERMALS DISSIPATED & HE HAD TO MAKE AN OFF ARPT LANDING. THE LANDING WAS MADE IN A FIELD OF TALL GRASS & THE LEFT WING CONTACTED THE GRASS FIRST RESULTING IN A 90 DEG GROUND LOOP. THE AFT FUSELAGE SECTION SEPARATED.

## Aircraft

- Registration: [N1106B](https://openairdocs.org/aircraft/N1106B), registered now, S/N 68 (OpenAirDocs)
- Reported make and model: GLASFLUGEL LIBELLE
- Registry model: [Glasflugel STANDARD LIBELLE](https://openairdocs.org/model/glasflugel-standard-libelle) (registry code 3800341) (OpenAirDocs)
- Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs)
- Category: Glider
- Serial number: 68
- Airframe hours: 1348
- Engines: unknown
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Peter W. Smith
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 12, 1984, 13 hours before
- Departed: OH14, MONTPELIER, OH
- Airport: Y85, Hillsdale

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 46; private; seat: center; flight hours: 122 total, 60 in this make and model, 15 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 60° at 5 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 81 °F

## 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 19840701036739A](https://openairdocs.org/incident/19840701036739A), Jul 1, 1984: Glasfl LIBELLE, Osseo, MI, Substantial damage. Ran out of lift due to high overcast on a crosscountry flight. Tall grass in a chosen field caused a ground loop.

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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