As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF (3000 FT), NR 4 ENGINE FIRE SWITCH ILLUMINATED BELL SOUNDED AND MACELL INDICATOR READ APPROX 9.5 ON A/B LOOPS PERFORMED ENGINE SHUT DOWN IAW EMERGENCY CHECKLIST NR 4 THRUST LEVER WOULD NOT MOVE FWD OF REFERENCE NR 2 AND NR 4 ENG ICING LIGHT ILLUMINATED. HOLD OPEN TILL FINAL FIX IS KNOWN.