Sarah MacLeod was instrumental in the formation of the Aeronautical Repair Station Association. She is a managing member of Obadal, Filler, MacLeod & Klein, P.L.C., and is engaged in the legal representation of foreign and domestic air carriers, aircraft maintenance and alteration facilities, distributors, pilots and other individuals and companies in federal court and before federal administrative bodies.
She is Assistant Chair for Air Carrier and General Aviation Maintenance of the FAA's Aviation Rulemaking Advisory Committee (ARAC), a post she has held since 1996. She chaired the ARAC in 1995-1996 and was its Vice-Chair in 1994-1995. She was a member of the FAA's Suspected Unapproved Parts (SUP) Task Force, which developed the plan on which the FAA SUP program is based; and she edited the Parts Manufacturer Approval Manual.