What was found
DURING CLIMB THROUGH 12,000 FEET ELEVATOR FEEL DIFF, PRESSURE LIGHT ILLUMINATED. PERFORMED PROCEDURES IAW POM, FOUND NO OTHER DISCREPANCIES. AFTER ONE HOUR AT CRUISE, LIGHT EXTINGUISHED FOR 5 MINUTES THEN ILLUMINATED, THEN LIGHT EXTINGUISHED IN DESCENT. LANDED IN ATL. REPLACED ELEVATOR FEEL COMPUTER DIFFERENTIAL PRESSURE SWITCH. OPS CHECK NORMAL.