As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE LOW OIL PRESSURE WARNING (BELOW LIMITS) ON APPROACH. CREW SHUT DOWN ENGINE AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THREE LOOSE AND ONE MISSING BOLT TO THE FUEL HEATER OIL TUBE AND AN OIL LEAK AT THE FUEL HEATER SERVO VALVE. REMOVED AND REPLACED FUEL HEATER SERVO IAW AIRBUS MAINTENANCE MANUAL 73-11-20-000-002. FUEL HEATER SERVO WAS A CONFIRMED FAILURE - REQUIRED 8 INSERTS DUE TO NO LOCKING TORQUE - PERFORMED COMPLETE OVERHAUL.