What was found
UPON MASTER RECALL THE CONT CABIN ZONE TEMP LIGHT ILLUMINATED AND EXTINGUISHED WHEN MASTER CAUTION SYSTEM IS RESET AS PER THE QRH. REMOVED & REPLACED CONT CABIN ZONE TEMP VLV REF MM 21 61 21 OPS & LEAK CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
UPON MASTER RECALL THE CONT CABIN ZONE TEMP LIGHT ILLUMINATED AND EXTINGUISHED WHEN MASTER CAUTION SYSTEM IS RESET AS PER THE QRH. REMOVED & REPLACED CONT CABIN ZONE TEMP VLV REF MM 21 61 21 OPS & LEAK CHECK GOOD.