As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAINT LIGHT ILLUMINATED. GROUNDED - YES. FOUND FAULT BLEED FAMV L FAULT CODE 36 112541 MAINT MSG 36 12020 PERFORMED B737-9 IFIM TASK 36-12-00-810-801 AND PNEUMATIC ENGINE ON SYSTEM TEST REF B737-9 AMM 36-00-00-730-801. SYSTEM TEST PASS AND MAINT LIGHT EXTINGUISHED.