# NTSB Accident WPR18FA088
> **HASTINGS THOMAS G CIRRUS VK 30** · 2018-02-11 · AGUA DULCE, CA, USA · FATL
## Event
- **NTSB number:** WPR18FA088
- **Event ID:** 20180211X53503
- **Type:** Accident
- **Date:** 2018-02-11
- **Location:** AGUA DULCE, CA, USA
- **Coordinates:** 34.463333, -118.303611
## Injuries
- **Highest injury:** FATL
- **Fatal:** 4
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 4
## Aircraft
- **Make:** HASTINGS THOMAS G
- **Model:** CIRRUS VK 30
- **Registration:** N52TH
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The driveshaft fracture due to overstress loading and rotational bending as a result of the under-torqued nuts on the elastomeric couplings backing off and the subsequent in-flight separation of the horizontal fairing due to contact with the separated end of the driveshaft, which led to a loss of control. Contributing to the accident was inadequate maintenance.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR18FA088) · AI Analytics · CC0 1.0*