What was found
IN FLIGHT, 10,000 FT, REPEAT WRITE UP. STEADY OIL TEMP CLIMB PAST 160. TEMP WENT 184, 190, 192 FOR APPROX 15 SECONDS. THEN 200 DEGREES FOR APPROX 5 SEC. ECAM FOLLOWED-THROTTLE IDLE. ECAM CLEARED, CAUTION WENT AWAY. CK'ED MAIN SCAVENGE OIL FILTER ASSY AS REQ, ALL OK. REMOVED AND REPLACED NR 1 ENGINE FUEL/OIL HEAT EXCHANGER, PER A300 AMM 79-22-02-4-05, PERFORMED INSP, CHECK PER AMM 79-22-02-6-05, NO DEFECTS NOTED. RAN NR 1 ENG PER A300 JRH, ALL ENGINE PARAMETERS NORMAL, AND LEAK CHECK NORMAL. RAN NR 1 AND NR 2 ENG, OIL TEMP WITHIN 4 DEGREES OF EACH OTHER. AT 85 PERCENT OIL TEMP 100 C, 91 PERCENT 106 C, AT 102 PERCENT OIL TEMP 112 C. ALL ENGINE COWLS CLOSED.