MassDOT seeks to execute a contract for annual inspections, maintenance and repair of a 1986 MD500E McDonnell Douglas helicopter. The cost of annual inspections and maintenance averages approximately $50,000 per year. This helicopter is located in Norwood, MA. Port City Air, Inc. is a 24/7 FBO and multi-faceted aviation services company located at KPSM, Portsmouth International Airport. Port City Air (PCA) is certified by the FAA Title 14 of the Code of Federal Regulations (14 CFR) Part 145 Repair Station. Port City Air is certified to perform inspections and mechanical upgrades to the MD500E McDonnell Douglas Helicopter. They provide turbine and piston maintenance for both fixed wing aircraft and helicopters along with a full avionics shop.