The National Oceanic and Atmospheric Administration requires a contractor to troubleshoot, repair, and tune two Vapor Power Hi R Temp boilers aboard the NOAA Ship Rainier, including addressing unburnt fuel in the aft boiler and adjusting controls on both boilers. The place of performance is the NOAA Ship Rainier at MOC-P, 2002 SE Marine Science Drive, Newport, OR 97365, with the period of performance scheduled for September 14–18, 2027. This is a total small business set-aside under NAICS 336611 for a firm-fixed-price service contract. Award will be based on a trade-off evaluation considering technical approach, past performance, and price, with non-price factors significantly more important than price initially. Offerors must provide a technical approach, at least two references, proof of SAM registration, and liability insurance.