# NTSB Accident WPR21FA266
> **BEECH C90** · 2021-07-10 · Wikieup, AZ, USA · FATL
## Event
- **NTSB number:** WPR21FA266
- **Event ID:** 20210711103452
- **Type:** Accident
- **Date:** 2021-07-10
- **Location:** Wikieup, AZ, USA
- **Coordinates:** 34.824722, -113.39138
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** BEECH
- **Model:** C90
- **Registration:** N3688P
- **FAR Part:** PUBU
- **Engines:** 2
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The failure and separation of the left wing’s outboard section due to a fatigue crack in the lower spar cap. Contributing to the accident was the operator’s decision to repair the wing spar instead of replacing it as recommended by the aircraft manufacturer. Also contributing to the accident was the failure of the Non-Destructive Testing inspector to detect the fatigue crack during inspection.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR21FA266) · AI Analytics · CC0 1.0*