# NTSB Accident CEN10LA560
> **SCHWEIZER 269C** · 2010-09-20 · Schaumburg, IL, USA · NONE
## Event
- **NTSB number:** CEN10LA560
- **Event ID:** 20100927X10441
- **Type:** Accident
- **Date:** 2010-09-20
- **Location:** Schaumburg, IL, USA
- **Coordinates:** 41.989166, -88.101112
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** SCHWEIZER
- **Model:** 269C
- **Registration:** N34LB
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The in-flight separation of the left aft cluster fitting assembly following the loss of torque on the lock nut due to a manufacturing defect.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN10LA560) · AI Analytics · CC0 1.0*