What was found
NR 4 ENGINE THRUST REVERSER OPERATING LIGHT CAME ON IN FLIGHT. NO ADVERSE INDICATIONS. REPLACED PDU, NO HELP REV INOP. TRANSFERRED TO DMI 33496 PER MEL 78-2A. PLACARD INSTALLED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
NR 4 ENGINE THRUST REVERSER OPERATING LIGHT CAME ON IN FLIGHT. NO ADVERSE INDICATIONS. REPLACED PDU, NO HELP REV INOP. TRANSFERRED TO DMI 33496 PER MEL 78-2A. PLACARD INSTALLED.