As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENG OTBD THRUST REVERSER HAS 18IN X 24IN SECTION MISSING. REMOVED FIRE BLANKET. INSTALLED FIRE BLANKET, 2 EA IN LT REVERSER. ALL FASTENERS INSTALLED EXCEPT ON THE T/E OF BOTH BLANKETS. SECURED BLANKETS. REINSTALLED PYLON VENT VLV.