Challenger 300
Flight Crew Air Transport Pilot (ATP)
Conflict NMAC; Deviation / Discrepancy - Procedural FAR; Ground Event / Encounter Aircraft; Inflight Event / Encounter Object
Air Traffic Control Issued Advisory / Alert; Flight Crew Became Reoriented
Aircraft; Human Factors
On approach in to PBI we were vectored to join the ILS 10L. Controller gave us 150 heading to join and 2000 feet cleared for the ILS. As we crossed ZISUR Tower issued a Drone sighting on final (anywhere from 1000 feet-2000 feet); at which I had just caught glimps of it directly on the centerline and 100-200 feet above our altitude. It passed directly above us and did not cause us to maneuver the aircraft to miss it. We notified tower of its location and altitude. Landing was uneventful.We unloaded the passengers and did not say anything about the drone as we were unloading since it did not involve any maneuvering on our behalf. PBI Tower called the FBO and asked us to call. When I called he wanted to know the description of the drone and they were calling the sheriff to go find its operator. The drone was square and approx. 2'x2'. Appeared to be silver and look like a quad copter.There was very little we could do as a crew besides maintain outside traffic scanning. After catching sight; we alerted tower to the exact location (ZISUR) and it appeared to be right at 2000 feet.  Had the glideslope not captured we most likely would have had to maneuver the aircraft or would have hit the drone.
During ILS approach to PBI 10L; the tower informed us that a drone was reported in the vicinity of the final approach course. As we scanned for said drone; we passed under it at approximately 100 to 200 feet. This happened at the ZISUR waypoint on the aforementioned ILS. We were asked by the tower; after landing; to give them a call. Captain (CA) made the call and described the drone as a quadcopter; silver in color. Tower informed CA that a sheriff's vehicle was on the way out to the drone location to investigate. We have notified the the Assistant Chief Pilot on duty.
CL300 flight crew is informed by PBI Tower of a drone sighting by a previous aircraft; near ZISUR on the ILS 10L. The drone is sighted at ZISUR and the crew passes 100-200 feet beneath it without maneuvering.