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Atlas / NTSB / WPR20CA273

NTSB CAROL · Event

Event WPR20CA273

2020-08-14 Warner Springs, California, United States None 1 aircraft Status: Completed

Registry · N7547

FAA Aircraft Registry record.

Make / Model

SCHWEIZER SGS 2-33A

Year of manufacture

1970 · 50 years old at event

Engine

NONE NONE

Seats / Engines

2 seats · 1 engine

Last airworthiness date

19700414

ADS-B equipped

Yes — Mode-S AA2C32

Registrant of record

SKY SAILING INC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot's inability to maintain altitude due to a loss of thermal lift, which resulted in an off-airport landing.

Factual narrative

The glider pilot reported that, during the return flight to the airport, he encountered more downdrafts than expected and did not have enough altitude to reach the airport. He selected an area for the forced landing where during the landing roll on the rough terrain, both wings sustained substantial damage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the glider that would have precluded normal operation. The glider pilot reported that, during the return flight to the airport, he encountered more downdrafts than expected and did not have enough altitude to reach the airport. He selected an area for the forced landing where during the landing roll on the rough terrain, both wings sustained substantial damage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the glider that would have precluded normal operation.     Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).

  • C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Altitude-Attain/maintain not possible - C
  • Environmental issues-Conditions/weather/phenomena-Temp/humidity/pressure-Thermal lifting-Effect on operation

Verbatim from NTSB's published report. Source file NTSB_2020_WPR20CA273.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.