# NTSB Accident WPR10LA034
> **AERO COMMANDER 690** · 2009-10-21 · Cedar City, UT, USA · NONE
## Event
- **NTSB number:** WPR10LA034
- **Event ID:** 20091029X63056
- **Type:** Accident
- **Date:** 2009-10-21
- **Location:** Cedar City, UT, USA
- **Coordinates:** 37.70111, -113.151664
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** AERO COMMANDER
- **Model:** 690
- **Registration:** N690TR
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The failure of the landing gear accumulator/regulator and the installation of the improper priority valve,  which precluded the landing gear from extending and locking into place.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR10LA034) · AI Analytics · CC0 1.0*