An air carrier pilot reported a near midair collision with a uas.

Attributes
ACN	1678939
Time
Date	201908
Local Time Of Day	1201-1800
Place
Locale Reference	PHX.Airport
State Reference	AZ
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B767-200
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Aircraft 2
Make Model Name	UAV - Unpiloted Aerial Vehicle
Flight Phase	Other unknown
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Conflict NMAC

Narrative:

While transitioning from the RNAV arrival to the approach; a uas passed directly under us; probably within a couple hundred feet. The first officer saw it; and could not identify what kind or exactly the size; but saw a glint of metal; said it seemed maybe several feet in diameter. No indications showed up on the TCAS. We were leveling off at 5;000 feet heading west. We reported the sighting to ATC; and responded to their questions in stages (workload permitting).

Original NASA ASRS Text

Title: An air carrier pilot reported a NMAC with a UAS.

Narrative: While transitioning from the RNAV arrival to the approach; a UAS passed directly under us; probably within a couple hundred feet. The First Officer saw it; and could not identify what kind or exactly the size; but saw a glint of metal; said it seemed maybe several feet in diameter. No indications showed up on the TCAS. We were leveling off at 5;000 feet heading west. We reported the sighting to ATC; and responded to their questions in stages (workload permitting).

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.