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Atlas / NTSB / ERA25LA181

NTSB CAROL · Event

Event ERA25LA181

2025-04-02 Zephyrhills, Florida, United States Airport · ZPH Serious 1 aircraft Status: Completed

Registry · N37PL

FAA Aircraft Registry record.

Make / Model

SCHLEICHER ASW-19

Year of manufacture

1978 · 47 years old at event

Engine

AMA/EXPR UNKNOWN ENG

Seats / Engines

1 seats · 1 engine

Last airworthiness date

20110506

ADS-B equipped

Yes — Mode-S A432C2

Registrant of record

TAMPA BAY SOARING SOCIETY INC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot’s inadequate inflight planning and an encounter with atmospheric conditions where the lift was not sufficient to maintain flight, resulting in an off-airport landing and collision with a fence.

Factual narrative

The pilot of the glider took off under aerotow for a flight in the local soaring area. The pilot released from the tow airplane at an altitude of 2,500 ft and 3 miles downwind of the airport. While soaring, the pilot found a thermal and regained some lost altitude to 2,300 feet msl. The pilot then reported making several 360° turns in the thermal to gain additional altitude, but he then noticed that he was now 8 miles from the airport and decided to turn back toward the airport. While soaring back to the airport, the pilot was unable to find any thermals to regain altitude. When the pilot was 3 miles from the airport at an altitude of 1,000 ft, he determined he did not have sufficient altitude to make it back to the airport and began to look for an off-airport landing area. The pilot found a pasture that he believed would be a suitable landing site. During the approach, the pilot noticed there was a wire fence across the pasture. As he approached the fence during landing, he retracted the spoilers and pitched the nose up in an attempt to clear the fence. Subsequently, the stall warning activated, and the glider impacted a fence pole which resulted in substantial damage to both wings. The pilot reported there were no preaccident mechanical failures or malfunctions with the glider that would have precluded normal operation. He further stated that the accident could have been prevented if he had requested that he be towed and released upwind of the airport. 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).

  • Environmental issues-Conditions/weather/phenomena-Temp/humidity/pressure-Thermal lifting-Effect on operation
  • Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Pilot

Verbatim from NTSB's published report. Source file NTSB_2025_ERA25LA181.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type or causal vocabulary (stall). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗