As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER RELEASING BRAKES; ON POWER OUT OF MCO HEARD LOUD POP AND WHEN APPLYING PRESSURE TO BRAKES FELT VIBRATION COMING FROM MLG AREA. JACKED EACH MLG, INSPECTED EACH BRAKE & CYCLED NUMEROUS TIMES. NO DEFECTS NOTED. SERVICED ALL BRAKE LOCKOUTS. BRAKES CHECKED GOOD AS PER B727 MM 32-40-0.