# NTSB Incident WPR17IA189
> **CESSNA 560XL** · 2017-08-29 · San Jose, CA, USA · NONE
## Event
- **NTSB number:** WPR17IA189
- **Event ID:** 20170828X92641
- **Type:** Incident
- **Date:** 2017-08-29
- **Location:** San Jose, CA, USA
- **Coordinates:** 37.361946, -121.92666
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 5
- **Total aboard:** 5
## Aircraft
- **Make:** CESSNA
- **Model:** 560XL
- **Registration:** N503UP
- **FAR Part:** 135
- **Engines:** 2
- **Damage:** MINR
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The mechanic’s incorrect installation of the right main landing gear (MLG) aft trunnion pivot pin, which resulted in the pin separating from the trunnion, the trunnion puncturing the right wing, and the right MLG collapsing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR17IA189) · AI Analytics · CC0 1.0*