# NTSB Accident WPR17LA114
> **TAPPEN CHRIS VELOCITY SUV** · 2017-05-30 · Puyallup, WA, USA · NONE
## Event
- **NTSB number:** WPR17LA114
- **Event ID:** 20170531X93750
- **Type:** Accident
- **Date:** 2017-05-30
- **Location:** Puyallup, WA, USA
- **Coordinates:** 47.103889, -122.287223
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** TAPPEN CHRIS
- **Model:** VELOCITY SUV
- **Registration:** N399DG
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The airplane builder's failure to install safety wires on the brake disc attachment bolts, and the mechanic’s failure to identify the omission during the condition inspection. The subsequent brake disc separation resulted in a loss of directional control during the landing roll.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR17LA114) · AI Analytics · CC0 1.0*