As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL350, AND FUEL TEMPERATURE 5, NR 2 FUEL ICING LIGHT ILLUMINATED. PERFORMED RELEVANT EMERG CK-LIST. DECLARED EMERGENCY. RELEASED FOR SERVICE PER MEL/CDL: 73-04 CATEGORY: C "MEL 73-04. TWO FUEL FILTER DIFFERENTIAL PRESSURE WARNING SYSTEM INOP. REMOVED AND REPLACED NR 2 FUEL FILTER PRESSURE SWITCH PER 727-200 M/M 73-14-021-4. OPS AND LEAK CHECK NORMAL ON ENG RUN.