Event Brief
PCB contamination halts Minuteman III test comms
By The BriefBrief · Sources (2)
Filed: Aug 31, 2026 at 10:00 PM ET
Summary: F.E. Warren Air Force Base halted use of an AN/PRM-10 test oscillator set after tests found traces of polychlorinated biphenyls (PCBs) on a kit used for communications testing. An airman reported exposure during a routine inspection in August, received medical attention, and was returned to duty with no adverse effects.
WHO: Air Force Global Strike Command; 20th Air Force; personnel at F.E. Warren Air Force Base
WHAT: Air Force Global Strike Command directed units to stop using AN/PRM-10 communications test oscillator kits after PCB residue was found.
WHEN: Aug 31, 2026
WHERE: F.E. Warren Air Force Base, Wyoming, USA
WHY: PCB residue was discovered on an AN/PRM-10 test oscillator kit during a routine inspection, exposing an airman to the residue.
ℹ️ This event is analyzed using pattern arcs, velocity indicators, and source analysis in our MI Console.
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