# NTSB Accident CHI99LA173
> **Aero Commander 500** · 1999-06-04 · EFFINGHAM, IL, USA · NONE
## Event
- **NTSB number:** CHI99LA173
- **Event ID:** 20001212X18936
- **Type:** Accident
- **Date:** 1999-06-04
- **Location:** EFFINGHAM, IL, USA
- **Coordinates:** 39.110218, -88.550109
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** Aero Commander
- **Model:** 500
- **Registration:** N711NE
- **FAR Part:** 091
- **Engines:** —
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

inadvertent wheels-up landing and the checklist not followed by the pilot.  The landing gear lever not engaged was an additional cause.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI99LA173) · AI Analytics · CC0 1.0*