Definition
A formal record submitted by FAA technical personnel documenting maintenance, inspection, or other work performed on a navigational aid, communication system, or other piece of national airspace system equipment.
Plain English
A written report saying what work was done on a piece of FAA equipment, when it was done, and by whom.
Context Anchor
Seen in FAA acronym, abbreviation, and notice-contraction lists when a shortened form is used for a service activity report.
Why Pilots Care
Pilots review these reports to understand recent changes or work that may affect runway, taxiway, or facility usability.
Example Sentence 1
After completing the VOR calibration, the technician filed a ROSA documenting the adjustments made to the transmitter.
Example Sentence 2
Before takeoff, the pilot checked the latest ROSA for any service activities affecting the departure airport.