Narrative:

After arriving at the gate; an air marshal informed me he saw a drone just off the left wingtip on short final to [runway] 4R ewr. It was close enough for him to see the propeller blades on the drone. He observed it abeam the oil refinery on short final to [runway] 4R and gave me [an approximate] time. I would say it was inside 1;000 feet altitude. None of the pilots saw a drone; but I decided to report this as the air marshal is a reliable source. I notified one of our pilot reps in the ewr ramp tower; and was given the phone number to call ewr control tower to inform them. The drone did not hit the aircraft.

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Original NASA ASRS Text

Title: B767 Captain reported a UAV; observed by a sky marshal from the passenger cabin; less than 1;000 feet horizontal.

Narrative: After arriving at the gate; an Air Marshal informed me he saw a drone just off the left wingtip on short final to [Runway] 4R EWR. It was close enough for him to see the propeller blades on the drone. He observed it abeam the oil refinery on short final to [Runway] 4R and gave me [an approximate] time. I would say it was inside 1;000 feet altitude. None of the pilots saw a drone; but I decided to report this as the Air Marshal is a reliable source. I notified one of our pilot reps in the EWR Ramp Tower; and was given the phone number to call EWR Control Tower to inform them. The drone did not hit the aircraft.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.