Commercial Fixed Wing
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 11.0
Situational Awareness; Training / Qualification
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Issued New Clearance; Flight Crew Exited Penetrated Airspace
Airspace Structure; Chart Or Publication; Company Policy; Human Factors; Procedure
Arrival sectors were de-combined due to complexity since a runway is closed at SJU. I was working one of the arrival sectors at the time of the event. When I expanded my scope I observed that Aircraft X was at 3000 feet in a 4000 foot MVA (Minimum Vectoring Altitude). The other arrival controller also noticed and gave Aircraft X a 050 heading to a lower MVA area. The Supervisor was right behind the controller monitoring the operation and I am pretty sure he saw the whole thing and did not say anything at the time. I did not hear that Aircraft X was given a low altitude alert. This is a safety problem that I think we are drifting from because we are forgetting the importance of safety alerts and that the MVA's are there for a reason. We need to be reminded of the importance of issuing safety alerts and safety flow of traffic.
ATC Center Controller reported another sector allowed an aircraft to operate below the Minimum Vectoring Altitude.