Quiet Technology Aerospace (QTA) has received a supplemental type certificate (STC) for a carbon fiber engine inlet replacement barrel for Gulfstream G280s with inner barrel corrosion on Honeywell HTF7250G engine inlets, the company announced yesterday. QTA’s lightweight carbon graphite composite barrel replaces the aluminum inner barrel on the G280’s Honeywell engine inlets that are susceptible to corrosion and acoustic screen degradation.

“This is not a repair that will fail again, potentially causing engine damage, but a permanent solution to the issue,” according to Hollywood, Florida-based QTA. Its composite barrel comes with a lifetime warranty that the company said remains with the aircraft’s serial number.

This is the sixth FAA-approved STC in QTA’s carbon fiber engine inlet replacement program that it launched four years ago. The five other STCs are for the Learjet 60, Gulfstream 200, Hawker 1000, Falcon 2000LX/EX, and Challenger 300/350. Since then, QTA has installed more than 100 carbon fiber intel barrels on 56 aircraft worldwide.