What was found
WHEN THROTTLES ADVANCED FOR TAKEOFF RT ENG OIL PSI LIGHT ILLUMINATED AND RT ENG OIL PSI EICAS MSG ANNUNCIATED, LIGHT EXT WITH THROTTLES AT IDLE, RE-ILLUMINATED EACH TIME THROTTLE IS ADVANCE OIL PSI INDICATES NORMAL. INSP MAIN ENG OIL FILTER CHIP DETECTORS NO DISCREPANCIES NOTED. REPLACED MAIN ENG OIL FILTER PRECAUTION. FOUND WIRE W3510-027-18 CHAFING CLAMP AT PREVIOUSLY. REPAIRED SPLICE. REPLACED CLAMP AND REPOSITIONED TO PREVENT CHAFING. AFTER WIRE REPAIR RT ENG OIL LIGHT ETOPS CATEGORY 'E': PROBLEMS WITH SYSTEMS CRITICAL TO ETOPS.