As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING, THE MASTER CAUTION AND AMBER "MAINT" LIGHT ON THE OVERHEAD PANEL ILLUMINATED. GROUNDED - YES. UPON NAVIGATING ONBOARD MTX COMPUTER FOUND CORRELATED FAULT CODE 36-12-12021 (#2 ENGINE) BLEED FAMV R. PLACED ON MEL 36-12-01A. REMOVED AND REPLACED RH FAN AIR MODULATING VALVE IN REF TO B737-9 AMM 36-12-03. ALSO PERFORMED OPS CHECK AND LRU TEST PER AMM 36-00-00-730-801 AND BOTH OPS CHECKED GOOD.