As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A/C HAD AN AIR TURNBACK TO KWI DUE TO LEFT BLEED DUCT LEAK DISPLAYED. LIGHT EXTINGUISHED AFTER ENGINE BLEED AIR SUPPLY AND ISOLATION VALVES CLOSED. ACCOMPLISHED INSPECTION OF WING/BODY LEAK DECTION LOOPS REPLACED DAMAGED HARDWARE AND DECTOR ELEMENTS AS PER MM 26-18-01 REPLACED DECTOR CARDS PER MM 26-10-01 ACCOMPLISHED OPS CHECK OF SYSTEM CHECK GOOD. (ITEM CLOSED)