# NTSB Accident CHI91DER10
> **Kolb Company TWINSTAR MK II** · 1991-06-30 · STAPLES, MN, USA · SERS
## Event
- **NTSB number:** CHI91DER10
- **Event ID:** 20001212X17204
- **Type:** Accident
- **Date:** 1991-06-30
- **Location:** STAPLES, MN, USA
- **Coordinates:** 46.360099, -94.800369
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** Kolb Company
- **Model:** TWINSTAR MK II
- **Registration:** N503BP
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DUSK
- **Weather:** VMC
## Probable cause

THE DISCONNECTED ELEVATOR TRIM CABLE.  RELATED FACTORS ARE THE INADEQUATE MAINTENANCE/INSTALLATION, AND THE PILOT'S INABILITY TO MAINTAIN AIRCRAFT CONTROL.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI91DER10) · AI Analytics · CC0 1.0*