As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING TASKCARD # 31-005-00 FOUND FAULT CODE BLEED FAMV RUDT R. MAINTENANCE MESSAGE 36-12031. GROUNDED - YES. THROUBLESHOT PER B737-9 IFIM 36-12-00-810-804 PERFORMED ELECTRICAL LRU REPLACEMENT TEST PER B737-9 AMM TASK 36-00-710-801. TEST PASSED. FAULT CLEARED. NO FURTHER ACTION REQUIRED.