# NTSB Accident WPR17LA056
> **BEECH 99** · 2017-01-19 · Billings, MT, USA · NONE
## Event
- **NTSB number:** WPR17LA056
- **Event ID:** 20170119X81250
- **Type:** Accident
- **Date:** 2017-01-19
- **Location:** Billings, MT, USA
- **Coordinates:** 45.807777, -108.542778
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** BEECH
- **Model:** 99
- **Registration:** N326CA
- **FAR Part:** 135
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The fatigue failure of the left main landing gear (MLG) actuator piston rod, which prevented the hydraulic system from producing pressure to control the MLG’s position and led to the right MLG collapsing during landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR17LA056) · AI Analytics · CC0 1.0*