What was found
AFTER TAKEOFF, CLIMBING THROUGH 15,000 FT, RECEIVED RT ENG OIL FILTER CLOG INDICATION. ALL ENG PARAMETERS WERE NORMAL. IAW QRH, ENG WAS RETARDED TO IDLE FOR LANDING. EMER DECLARED, RETURNED & LANDED UNEVENTFULLY. ACFT WAS REMOVED FROM SERVICE. RT ENG STRAINER CLOGGED LIGHT CHECKED & APPROVED FOR DEFERRAL IAW MEL 79-3. INSTALLED PLACARD & ENTERED IN MIC SHEET, OPEN. REPLACED NR 2 ENG OIL STRAINER CLOG SWITCH.