# NTSB Incident ENG12IA012
> **MCDONNELL DOUGLAS MD-10-30F** · 2012-02-13 · Portland, OR, USA · —
## Event
- **NTSB number:** ENG12IA012
- **Event ID:** 20120221X03231
- **Type:** Incident
- **Date:** 2012-02-13
- **Location:** Portland, OR, USA
- **Coordinates:** 45.589168, -122.605552
## Injuries
- **Highest injury:** —
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 0
## Aircraft
- **Make:** MCDONNELL DOUGLAS
- **Model:** MD-10-30F
- **Registration:** N304FE
- **FAR Part:** 121
- **Engines:** 3
- **Damage:** MINR
## Conditions
- **Light:** NR
- **Weather:** Unk
## Probable cause

The fracture of the fan mid shaft due to a stress corrosion cracking initiated by local regions of corrosion pitting, which resulted from oil migration within the shaft and its subsequent degradation.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ENG12IA012) · AI Analytics · CC0 1.0*