# NTSB Accident ERA15LA328
> **GULFSTREAM AEROSPACE G IV** · 2015-04-10 · Caribbean Sea, UN · NONE
## Event
- **NTSB number:** ERA15LA328
- **Event ID:** 20150827X41302
- **Type:** Accident
- **Date:** 2015-04-10
- **Location:** Caribbean Sea, UN
- **Coordinates:** 22.416666, -74.833335
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** GULFSTREAM AEROSPACE
- **Model:** G IV
- **Registration:** N450KK
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The in-flight failure of the cabin pressurization relief/safety valve (CPRV) due to an obstruction of the CPRV static port, which allowed the airplane to overpressurize. The reason for the initial overpressurization condition could not be determined.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA15LA328) · AI Analytics · CC0 1.0*