# NTSB Accident LAX04LA292
> **American Champion (ACAC) 7ECA** · 2004-08-15 · Manchester, CA, USA · NONE
## Event
- **NTSB number:** LAX04LA292
- **Event ID:** 20040817X01241
- **Type:** Accident
- **Date:** 2004-08-15
- **Location:** Manchester, CA, USA
- **Coordinates:** 39.012779, -123.382774
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** American Champion (ACAC)
- **Model:** 7ECA
- **Registration:** N11037
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

maintenance personnel's failure to adequately torque the top spark plug on the number one cylinder, which resulted in a separation of that plug and a loss of engine power.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX04LA292) · AI Analytics · CC0 1.0*