# NTSB Incident WPR13IA144
> **BOMBARDIER DHC-8-402** · 2013-03-05 · Danville, CA, USA · NONE
## Event
- **NTSB number:** WPR13IA144
- **Event ID:** 20130312X23544
- **Type:** Incident
- **Date:** 2013-03-05
- **Location:** Danville, CA, USA
- **Coordinates:** 37.839443, -122.003334
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 51
- **Total aboard:** 51
## Aircraft
- **Make:** BOMBARDIER
- **Model:** DHC-8-402
- **Registration:** N417QX
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** MINR
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The failure and separation of a section of the No. 2 engine's combustion chamber's small exit duct (SED), which created an airflow disruption that led to an engine surge and subsequent fire. Contributing to the accident was the insufficient weld penetration that remained totally contained within the SED outer dome and did not penetrate through to the inner duct as required by the manufacturing specifications.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR13IA144) · AI Analytics · CC0 1.0*