# NTSB Accident WPR21LA069
> **CESSNA 172** · 2020-12-13 · San Diego, CA, USA · NONE
## Event
- **NTSB number:** WPR21LA069
- **Event ID:** 20201213102410
- **Type:** Accident
- **Date:** 2020-12-13
- **Location:** San Diego, CA, USA
- **Coordinates:** 32.815722, -117.13955
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** CESSNA
- **Model:** 172
- **Registration:** N5098E
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A partial loss of engine power due to the fatigue fracture of the No. 3 exhaust valve rocker arm stud.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR21LA069) · AI Analytics · CC0 1.0*