ASN Wikibase Occurrence # 318177
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Saturday 17 June 2023 |
| Time: | 10:59 |
| Type: |  Gulfstream G-IV(SP) |
| Owner/operator: | Planet Nine Private Air |
| Registration: | N926TT |
| MSN: | 1372 |
| Year of manufacture: | 1999 |
| Total airframe hrs: | 16893 hours |
| Fatalities: | Fatalities: 0 / Occupants: 9 |
| Aircraft damage: | Minor |
| Category: | Incident |
| Location: | Sioux City, IA -
 United States of America
|
| Phase: | En route |
| Nature: | Passenger - Non-Scheduled/charter/Air Taxi |
| Departure airport: | Philadelphia International Airport, PA (PHL/KPHL) |
| Santa Rosa-Sonoma County Airport, CA (STS/KSTS) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Information verified through data from accident investigation authorities |
On June 17, 2023, about 1059 central daylight time (CDT), a Gulfstream G-IV, N926TT, operated by Planet 9 Private Air, LLC., experienced an uncontained No. 2 (right) engine failure shortly after beginning a step climb at FL400. The flight crew secured the No. 2 engine, declared an emergency, and diverted the airplane to Sioux Gateway Airport (SUX), Sioux City, Iowa where they made an uneventful single engine landing. There were no injuries reported. The airplane was operated as a Title 14 Code of Federal Regulations Part 135 flight from Philadelphia International Airport (PHL), Philadelphia, Pennsylvania to Charles M. Schulz Sonoma County Airport (STS), Santa Rosa, California.
According to the flight crew, they had been approved to climb from FL400 to FL430 and moments after pressing flight level change (FLCH), they experienced massive vibrations, and a subsequent No. 2 engine rollback.
A visual inspection of the No. 2 engine inlet and nacelle were performed after landing at SUX. One fan blade was separated at the midspan, and all fan blades exhibited leading edge impact damage. There was a hole in the engine nacelle forward of the fan plane of rotation at approximately the 1 o’clock position.
The airplane was quarantined at SUX for additional engine and nacelle examination. The recorders will be downloaded at the NTSB Headquarters in Washington, DC. The engine will be retained for teardown examination. In accordance with ICAO Annex 13 guidelines, the German Federal Bureau of Aircraft Accident Investigation (BFU) and the United Kingdom Air Accidents Investigation Branch (AAIB) assigned Accredited Representatives as the state of manufacture and design of the engines to assist with the investigation. Additional parties to the investigation include the Federal Aviation Administration (FAA), Gulfstream Aerospace, and Rolls-Royce as a Technical Advisor to German BFU.
Accident investigation:
 |
|
Sources:
NTSB
https://www.flyplanet9.com/fleet/n926tt/
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 18-Jul-2023 21:42 | Captain Adam | Added |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation