# Accident 20150410018379A: Gulfstream Aerospace G-IV, Fort Lauderdale, FL, April 10, 2015

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: April 10, 2015, 18:45 local time
- Place: Fort Lauderdale, FL
- Airport: Fort Lauderdale Executive
- Damage: Substantial damage
- Phase of flight: Cruise/Level Flight
- Operating rules: General operating rules (Part 91)
- Location: 22.4167° N, 74.8333° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=22.4167&lon=-74.8333&mi=10
- Aircraft: N450KK, a cancelled registration (https://openairdocs.org/deregistered/N450KK-2018-06-26) (OpenAirDocs)
- Registry model: Gulfstream Aerospace G-IV (registry code 3980115, https://openairdocs.org/model/gulfstream-aerospace-g-iv) (OpenAirDocs)
- Registry engine: Rolls-Royce TAY-611SER (registry code 54561, https://openairdocs.org/engine/rolls-royce-tay-611ser) (OpenAirDocs)
- Reported make and model: GULFSTREAM AEROSPACE G-IV
- Reported engine: ROLLS-ROYC TAY 611-8
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Airline transport
- Pilot flight hours: 13,000 total, 700 in this make and model, 35 in the last 90 days
- NTSB investigation: [NTSB ERA15LA328](https://openairdocs.org/ntsb/ERA15LA328) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20150410018379A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

THE FLIGHT CREW (NO PAX) AND AIRCRAFT EXPERIENCED AN OVER-PRESSURIZATION INCIDENT ENROUTE AT FL430.  THE PILOTS FOLLOWED THE AIRCRAFT FLIGHT MANUAL (AFM) PROCEDURES AND EXECUTED A NORMAL LANDING AT FXE.  AN INITIAL INSPECTION PERFORMED BY THE FLIGHT CREW DID NOT REVEAL ANY INDICATIONS OF DAMAGE.  THE AIRCRAFT WAS FLOWN TO A MAINTENANCE FACILITY AT BCT ON THE FOLLOWING DAY.

THE INITIAL INSPECTION CONDUCTED BY THE REPAIR FACILITY REPORTED DISCREPANCIES INCLUDING THE AIRCRAFTS AURAL WARNING SPEAKER WAS DETERIORATED AND THE VOLUME WAS NOT FUNCTIONING PROPERLY.  ALSO, THE OUTFLOW VALVE SAFETY PORT WAS PLUGGED WITH MUD AND BUG RESIDUE AND WAS NOT FUNCTIONING.

GULFSTREAM AEROSPACE CORP. REPRESENTATIVES INSPECTED THE AIRCRAFT AND REPORTED DISCREPANCIES INCLUDING A CRACKED FLOOR BEAM, DAMAGED WING LINKS, AND DIMPLED AREAS IN THE FLOORBOARDS.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ERA15LA328](https://openairdocs.org/ntsb/ERA15LA328), Apr 10, 2015: Gulfstream Aerospace G IV (N450KK), Caribbean Sea, A1, substantial damage. 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…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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