As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WITH BOTH OUTFLOW VALVES CLOSED, MAX PRESSURE DIFFERENTIAL 4.5 INCHES CABIN CLIMBING. CHECK FOR PNEU LEAK. RETURNED TO MIA. SECURED INNER PANEL ON C-2 FOR HTE UNLOCK ACTUATOR ACCESS. AIRCRAFT WILL HOLD PRESSURATION OK FOR SERVICE IAW MM # 21-31-00, PAGE 122.