# NTSB Accident SEA92LA098
> **SCHWEIZER SGS-1-35C** · 1992-05-20 · BIG TIMBER, MT, USA · NONE
## Event
- **NTSB number:** SEA92LA098
- **Event ID:** 20001211X14732
- **Type:** Accident
- **Date:** 1992-05-20
- **Location:** BIG TIMBER, MT, USA
- **Coordinates:** 45.96088, -109.850494
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** SCHWEIZER
- **Model:** SGS-1-35C
- **Registration:** N2739H
- **FAR Part:** 091
- **Engines:** 0
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

AIRSPEED WAS NOT MAINTAINED.  FACTORS TO THE ACCIDENT WERE: NO THERMAL LIFT AND INADEQUATE REMEDIAL ACTION.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA92LA098) · AI Analytics · CC0 1.0*