20230617021959I

Incident · Minor damage

FAA incident report · Gulfstream Aerospace G-IV · Sioux City, IA · June 17, 2023

Date: June 17, 2023 · 11:00 local
Place: Sioux City, IA
Airport: Sioux Gateway Airport
Phase of flight: Cruise/Level Flight
Operating rules: Air taxi and commuter (Part 135)
Operator: 7P9A
Damage: Minor damage
Aircraft: N926TT
NTSB investigation: NTSBENG23LA030
Reported as: Gulfstream Aerospace G-IV
Reported engine: Rolls-Royce TAY
People aboard: 9
Fatal injuries: 0
Other injuries: 0
Pilot’s certificate: Airline transport
Pilot’s flight hours: 8,564 total

N926TTRegistered now · Gulfstream Aerospace G-IVS/N 1372 · Built 1999 Airframe modelGulfstream Aerospace G-IV Engine modelRolls-Royce TAY-611SERTurbo-fan

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry 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.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

PIC stated that takeoff and departure were normal. During cruise flight continous light chop and moderate turbulance were experienced. He requested and received clearance to FL430. After 30-40 seconds he reports hearing "a massive exposion sounding noise." ATC was notified of engine failure. Pilot requested landing at the nearest suitable airport. Aircraft landed without any further issues.

As the FAA filed it

PIC STATED THAT TAKEOFF AND DEPARTURE WERE NORMAL. DURING CRUISE FLIGHT CONTINOUS LIGHT CHOP AND MODERATE TURBULANCE WERE EXPERIENCED. HE REQUESTED AND RECEIVED CLEARANCE TO FL430. AFTER 30-40 SECONDS HE REPORTS HEARING "A MASSIVE EXPOSION SOUNDING NOISE." ATC WAS NOTIFIED OF ENGINE FAILURE. PILOT REQUESTED LANDING AT THE NEAREST SUITABLE AIRPORT. AIRCRAFT LANDED WITHOUT ANY FURTHER ISSUES.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

NTSB ENG23LA030Incident · No injuriesClass 3 · LimitedFinal reportSioux City, IAA No. 2 (right) engine failure due to a spinner fairing separation and subsequent impact with the fan blades that resulted in a midspan fracture of one fan blade. The spinner fairing separated as a result of a fatigue crack that originated from the heat…Jun 17, 2023 · Minor damage