# Accident 19990706008359A: Wthrly 620B, Timber Lake, SD, July 6, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 6, 1999, 13:15 local time
- Place: Timber Lake, SD
- Airport: Timberlake Municipal Airport
- Damage: Substantial damage
- Phase of flight: Forced/Precautionary Landing
- Operating rules: Agricultural (Part 137)
- Location: 45.4197° N, 101.0704° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=45.4197&lon=-101.0704&mi=10
- Aircraft: N350WR, a cancelled registration (https://openairdocs.org/deregistered/N350WR-2014-05-22) (OpenAirDocs)
- Registry model: Weatherly 620B (registry code 9630605, https://openairdocs.org/model/weatherly-620b) (OpenAirDocs)
- Registry engine: Pratt & Whitney R-985 series (registry code 52008, https://openairdocs.org/engine/pratt-whitney-r-985-series) (OpenAirDocs)
- Reported make and model: WTHRLY 620B
- People aboard: 1
- Fatal injuries: 0
- NTSB investigation: [NTSB CHI99LA214](https://openairdocs.org/ntsb/CHI99LA214) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990706008359A

## Narrative

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

ACFT CRASHED 1/2 MILE FROM THE ARPT AFTER TAKE-OFF, OTHER CIRCUMSTANCES AR E UNKNOWN. (.19) ON JULY 6, 1999, AT 1240 MOUNTAIN DAYLIGHT TIME, A WEATHERLY 620B, N350WR, SUSTAINED SUBSTANTIAL DAMAGE WHEN IT IMPACTED TERRAIN AFTER TAKEOFF FROM RUNWAY 17 (2,400 FEET BY 120 FEET, DRY/TURF) AT THE TIMBER LAKE AIRPORT NEAR TIMBER LAKE, SOUTH DAKOTA. VISUAL METEOROLOGICAL CONDITIONS PREVAILED AT THE TIME OF THE ACCIDENT.  THE AERIAL SPRAYING AIRCRAFT WAS OPERATING UNDER THE PROVISIONS OF 14 CFR PART 137 AT THE TIME OF THE ACCIDENT AND WAS NOT ON A FLIGHT PLAN.  THE PILOT, WHO WAS THE SOLE OCCUPANT, REPORTED NO INJURIES.  THE FLIGHT WAS ORIGINATING AT THE TIME OF THE ACCIDENT.                                                                          (-23)THE AIRCRAFT WAS TAKING OFF ON RUNWAY 17 AT TIMBER LAKE, SD.  IT DRIFTED OFF THE RUNWAY STRIKING A FNECE.  THE PILOT THEN DUMPED THE CHEMICAL LOAD.  THE AIRCRAFT THEN STRUCK ANOTHER FENCE AND CAME TO REST ON EDGE OF A COUNTY ROAD.

## The NTSB's investigation of this event (1)

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.

- [NTSB CHI99LA214](https://openairdocs.org/ntsb/CHI99LA214), Jul 6, 1999: Weatherly 620B (N350WR), Timber Lake, SD, substantial damage. Probable cause: the pilots selection of the shorter runway and his failure to abort the takeoff. Factors to the accident were the high density altitude, the fence and the fence posts.

## Other reports on N350WR (1)

Matched to the same aircraft by N-number and date.

- [Accident 20130606011289A](https://openairdocs.org/incident/20130606011289A), Jun 6, 2013: Weatherly Aviation Co Inc 620B (N350WR), Ludlow, SD, Destroyed, 1 fatal. On 06/06/2013, at 1920 local, a 1996 Weatherly 620B owned by air kraft spraying inc. was involved in a fatal spraying accident during aerial application. VFR…

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.