What was found
**WHILE IN HEAVY CHECK** MAINTENANCE FOUND LEVEL 2 CORROSION AT SPLICE AT FR 90. MAINTENANCE REMOVED AND REPLACED SPLICE AT FR 90 REF SRM 51-40-02, 51-40-08, 51-23-05, 51-23-06, AND CPM 51-25-00. AIRCRAFT REMAINS IN HEAVY CHECK FOR DURATION OF THE CHECK.