# NTSB Accident CHI00LA002
> **Enstrom EN-28** · 1999-10-02 · INDIANAPOLIS, IN, USA · MINR
## Event
- **NTSB number:** CHI00LA002
- **Event ID:** 20001212X19916
- **Type:** Accident
- **Date:** 1999-10-02
- **Location:** INDIANAPOLIS, IN, USA
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 2
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** Enstrom
- **Model:** EN-28
- **Registration:** N602H
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's attempted operation of the helicopter with known deficiencies, and his improper autorotation to landing. Factors were one fouled spark plug and another partially failed spark plug in the same cylinder, and the construction area.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI00LA002) · AI Analytics · CC0 1.0*