# NTSB Accident NYC90LA092
> **SCHWEIZER SGS-1-26B** · 1990-04-26 · UNIONVILLE, PA, USA · MINR
## Event
- **NTSB number:** NYC90LA092
- **Event ID:** 20001212X23017
- **Type:** Accident
- **Date:** 1990-04-26
- **Location:** UNIONVILLE, PA, USA
- **Coordinates:** 39.899971, -75.740699
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** SCHWEIZER
- **Model:** SGS-1-26B
- **Registration:** N9856E
- **FAR Part:** 091
- **Engines:** 0
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE LOSS OF THERMAL LIFT WHICH NECESSITATED A FORCED LANDING ON UNSUITABLE TERRAIN COVERED BY TREES AND HIGH OBSTRUCTIONS.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=NYC90LA092) · AI Analytics · CC0 1.0*