# NTSB Incident CHI88IA141
> **SWEARINGEN SA226-TC** · 1988-06-22 · CHICAGO, IL, USA · NONE
## Event
- **NTSB number:** CHI88IA141
- **Event ID:** 20001213X25895
- **Type:** Incident
- **Date:** 1988-06-22
- **Location:** CHICAGO, IL, USA
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 6
- **Total aboard:** 6
## Aircraft
- **Make:** SWEARINGEN
- **Model:** SA226-TC
- **Registration:** N329BA
- **FAR Part:** 135
- **Engines:** 2
- **Damage:** —
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

FAILURE OF THE FRONT MOTOR BEARING IN THE SAS SERVO MOTOR ASSEMBLY, AND THE RESULTANT 'JAMMING' OF THE ELEVATOR CONTROL CABLES. THE PILOT ABORTED THE TAKEOFF AS A RESULT OF THE VIBRATION IN THE YOKE.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI88IA141) · AI Analytics · CC0 1.0*