B737 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 212; Flight Crew Total 16000; Flight Crew Type 3000
Conflict NMAC
General None Reported / Taken
Human Factors
Descending through 7000 feet on the Quabn3 RNAV arrival an object passed by the left side; above and within approximately 50 feet of our aircraft. The ACM and I both saw it for only a second or less. The object was football shaped; red and blue in color. It appeared to be either a balloon or a drone.
B737 Captain reported NMAC with a drone or a balloon on the QUABN3 Arrival into BOS.