# NTSB Accident LAX99LA111
> **COOPER VANS RV-6** · 1999-02-26 · VACAVILLE, CA, USA · MINR
## Event
- **NTSB number:** LAX99LA111
- **Event ID:** 20001205X00196
- **Type:** Accident
- **Date:** 1999-02-26
- **Location:** VACAVILLE, CA, USA
- **Coordinates:** 38.409713, -122.009765
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 1
- **Total aboard:** 2
## Aircraft
- **Make:** COOPER
- **Model:** VANS RV-6
- **Registration:** N36VR
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The failure of the engine assembler to apply the proper torque on the connecting rods bolts, which led to fatigue cracking and ultimately fracture of the rod bolts.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX99LA111) · AI Analytics · CC0 1.0*