# Accident 20090822016499A: Jonker JS1B, Tullahoma, TN, August 22, 2009

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 22, 2009, 16:52 local time
- Place: Tullahoma, TN
- Airport: Tullahoma Regional Airport/Wm Norther
- Damage: Substantial damage
- Phase of flight: Approach
- Operating rules: General operating rules (Part 91)
- Location: 35.3801° N, 86.2468° W: Placed by OpenAirDocs at TULLAHOMA RGNL/WM NORTHERN FLD (THA), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.3801&lon=-86.2468&mi=10
- Aircraft: N504BT, a cancelled registration (https://openairdocs.org/deregistered/N504BT-2010-03-03) (OpenAirDocs)
- Registry model: Jonker Sailplanes CC JS 1B (registry code 056280S, https://openairdocs.org/model/jonker-sailplanes-cc-js-1b) (OpenAirDocs)
- Registry engine: NONE (registry code 00000, https://openairdocs.org/engine/none) (OpenAirDocs)
- Reported make and model: JONKER JS1B
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 0
- Pilot flight hours: 4,600 total, 4 in this make and model, 23 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20090822016499A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23)  AIRCRAFT WAS NOT MAINTAINED AT A SUFFICIENT ALTITUDE, DURING TURN FROM BASE TO FINAL, TO OVERCOME APPARENT HIGH NEGATIVE LIFT EXPERIENCED ON FINAL.  PILOT WAS FORCED TO ATTEMPT AN EMERGENCY LANDING IN AN ADJACENT PARKING LOT.  AIRCRAFT IMPACTED THE GROUND AT AN EXCESSIVELY HIGH SINK RATE AND SUBSEQUENTLY IMPACTED A TREE AT THE OPPOSITE END OF THE PARKING AREA.  AIRCRAFT CONTACTED THE GROUND WINGS LEVEL AND SLIGHTLY NOSE LOW.  AIRCRAFT SUFFERED SUBSTANTIAL DAMAGE DUE TO HIGH G FORCES UPON LANDING.  MAJOR WING DAMAGE WAS CAUSED BY CONTACT OF THE WING LEADING EDGE WITH A TREE.  PILOT HAD VERY MINOR SCRAPES OF KNEE AND ELBOW.  NO MEDICAL ATTENTION WAS SOUGHT.

## NTSB investigation

None matched to this report by aircraft and date. Search the NTSB's own records: https://data.ntsb.gov/carol-main-public/basic-search

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.