As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DIVERTED DUE TO RT OTBD STABILIZER L/E DEICE BOOT WOULD NOT DEFLATE. ACFT WAS INBOUND THAT WAS EXPERIENCING ICING CONDITIONS. ACFT MAINTENANCE TROUBLESHOT THE ACFT REPLACED THE VALVE-DUAL HEAT, PN 4100S005-04, SN 3237, REPLACE WITH 4100S005-04, SN 3102 IAW AMM 30-11-16. CHECKED SERVICIABLE.