As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB OUT, SUFFERED NR 3 THRUST REVERSER PRESSURE FAULT. PERFORMED QRH & RETURNED TO DEPARTURE. REPLACED PNU FLEX LINE. FOUND CONNECTOR TO RT THRUST REVERSER LOCK LOOSE. TIGHTEND CONNECTOR. NO FAULTS IN AIU-1, -2 OR -3. OPS CHECKED NR 3 THRUST REVERSER. CHECKED OK. PREFORMED MAX POWER CHECK WITH NO THRUST REVERSER FAULTS DURING RUN IAW JRH.