Air carrier flight crew reported an NMAC with a UAS during descent. The Captain took evasive action to avoid a possible collision with the UAS.

Date: 2025-03 · Aircraft: B737 Undifferentiated or Other Model · Phase: descent

Anomalies: airspace-violation-all-types|conflict-nmac|deviation-discrepancy-procedural-far|deviation-discrepancy-procedural-unauthorized-flight-operations-uas|deviation-discrepancy-procedural-published-material-policy

Synopsis

Air carrier flight crew reported an NMAC with a UAS during descent. The Captain took evasive action to avoid a possible collision with the UAS.

Narrative

During descent; on vectors on the ZZZZZ arrival; we were issued a clearance to descend from 6000 to 5000 feet. We saw what appeared to be a fairly large drone at our 11:30 position and closing rapidly towards the aircraft. I disconnected the auto pilot; made a bank turn to the right and ducked my head under the glareshield because I thought the object was going to hit the aircraft. I estimate that the aircraft missed the drone by approximately 5 to 10 feet off the left side of the aircraft. We leveled out at 5000 feet; the auto pilot was then reengaged. The drone appeared to be approximately 3 feet wide; had red and green lights. The drone appeared in the shape of an X" and appeared to have rotors. We then proceeded on vectors and landed at ZZZ airport with no further action. After the parking checklist was completed; I notified the Chief Pilot of the incident and made an Electronic Log Book (ELB) entry to have maintenance perform a walk around inspection with me to ensure that the drone had not hit the aircraft. No damage was observed after the walk around with airline maintenance personnel."

Second reporter narrative

A near miss with a small size drone.

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Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.