Gulfstream is an organization that has been in communication with various individuals, including Larry Visoski and Jeffrey E., regarding the maintenance and upgrade of aircraft, including a G550 [1] [2] [3] and a GIV [4] [5] [6]. Gulfstream's engineering team in Savannah has been involved in reviewing and addressing issues with the aircraft, such as corrosion and system integrity [2] [5]. The organization has also been manufacturing replacement parts, including an angle that was corroded, with a delivery date of January 4th [5]. Gulfstream has provided recommendations for system checks and temporary repairs, including a full system integrity check of the PreCooler system and cabin pressurization [5]. The organization has also completed maintenance inspections on aircraft, including a 12-year and 16-year inspection [6].