Incident: Gulfstream Aerospace G-IV
Jun 17, 2023 · Sioux City, IA
NTSB numberENG23LA030Event id20230623192429
- 0
- Fatalities
- 0
- Serious injuries
- 0
- Minor injuries
- 9
- Uninjured
Probable cause
A 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 affected zone of a tack weld that secured a spacer to the aft side of the fairing. Contributing to the incident was inadequate spinner fairing inspection procedures that did not require removal of the spinner fairing to inspect the aft side for earlier detection of crack indications.
Source: National Transportation Safety Board. Record last changed Oct 28, 2026, 10:54 UTC.
Aircraft involved
- Aircraft
- Gulfstream Aerospace G-IV
- Registration
- N926TT
- Year built
- 1999
- Category
- Airplane
- Damage
- Minor
- Operating rules
- Part 135: commuter and on-demand
- Defining event
- Enroute-change of cruise level Powerplant sys/comp malf/fail
Source: National Transportation Safety Board aviation accident database. Counts only; Voydar holds no names.
Nearest airports
Airports with a Voydar profile closest to the recorded position. Proximity only.
- Sioux Gateway Airport / Brigadier General Bud Day Field (SUX)0 nm (0 km) south
This page restates the NTSB's public record. Injury figures are counts; Voydar does not hold or publish the names of anyone involved.