# NTSB Incident ANC05IA016
> **Boeing 747SR-146B SF** · 2004-12-05 · Anchorage, AK, USA · NONE
## Event
- **NTSB number:** ANC05IA016
- **Event ID:** 20041213X01972
- **Type:** Incident
- **Date:** 2004-12-05
- **Location:** Anchorage, AK, USA
- **Coordinates:** 61.174446, -149.996383
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 3
- **Total aboard:** 3
## Aircraft
- **Make:** Boeing
- **Model:** 747SR-146B SF
- **Registration:** JA8158
- **FAR Part:** 129
- **Engines:** 4
- **Damage:** MINR
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The fatigue and subsequent fracture of a portion of the airplane's pressure bulkhead, which resulted in a rapid decompression during cruise flight.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ANC05IA016) · AI Analytics · CC0 1.0*