This is a Sources Sought notice for planning purposes only, not a solicitation. The U.S. Coast Guard seeks industry input on the feasibility of overhauling and reusing Dowty R391 propellers from the C-27J fleet on HC-130J aircraft. The government is assessing potential technical and airworthiness solutions and will use responses to inform any future requirement. Responses are due by May 23, 2026, at 8:00 a.m. ET. No budget, performance location, or solicitation timeline is provided.