What was found
TAKE-OFF POWER APPLIED & DURING ROLL. AT APPROX 60 KTS, NR 1 ENG FUEL FILTER CLOGG LIGHT ILLUMINATED WITH ECAM ALERT. TAKEOFF ABORTED, THROTTLES REDUCED. ECAM WARNING EXTINGUISHED, ALL ENGINE INDICATIONS NORMAL. SUBSEQUENT T/O NORMAL, BUT NR 1 ENG CLOG ECAM RETURNED DURING CLIMB. WITH NR 1 ENG POWER BELOW 100 %, WARNING LIGHT & ECAM EXTINGUISHED. PERFORMED FUEL FILTER INSP IAW MM 73-12-03-06, NO DEBRI FOUND. INSTALLED NEW FILTER IAW MM 73-12-02-04. OHMED WIRING FOR WARNING LIGHT TO FUEL FILTER DIFFERENTIAL PRESSURE SWITCH IAW WRI 73-34-01, PG 01. R & R NR 1 FUEL FILTER DIFFERENTIAL PRESSURE SWITCH IAW MM 73-34-11-4 05. LEAK CHECKED OK. OK FOR SERVICE.