# NTSB Incident SEA90IA042
> **BOEING 747-446B** · 1990-02-15 · EVERETT, WA, USA · NONE
## Event
- **NTSB number:** SEA90IA042
- **Event ID:** 20001212X22632
- **Type:** Incident
- **Date:** 1990-02-15
- **Location:** EVERETT, WA, USA
- **Coordinates:** 47.979587, -122.200012
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 7
- **Total aboard:** 7
## Aircraft
- **Make:** BOEING
- **Model:** 747-446B
- **Registration:** UNREG
- **FAR Part:** 091
- **Engines:** 4
- **Damage:** MINR
## Conditions
- **Light:** NDRK
- **Weather:** VMC
## Probable cause

A BREAK FROM PRE-EXISTING INTERGRANULAR CRACKS WHICH LED TO A FRACTURE.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA90IA042) · AI Analytics · CC0 1.0*