What was found
TPA - FLT 2636 - ON CLIMB-OUT FROM TPA, CAPT OBSERVED A DUCT PRESSURE OF OVER 100 PSI ON THE RIGHT SIDE AND 40 PSI ON THE LEFT SIDE. THE NR 5 LEADING EDGE SLAT TRANSIT LIGHT WAS ALSO ILLUMINATED. CREW CYCLED LEADING EDGE SLATS TWICE BUT LIGHT WOULD NOT EXTINGUISH. VISUAL LOOK AT SLATS SHOWED A SLIGHT SPLIT. FLIGHT RETURNED TO FIELD AT TPA AND LANDED WITHOUT FURTHER INCIDENT. NO EMERGENCY WAS DECLARED. MAINTENANCE REMOVED AND REPLACED THE NR 2 ENGINE BLEED AIR PRESSURE REGULATOR. OPERATIONAL TEST OF BLEED SYSTEM GOOD. ALSO, REMOVED AND REPLACED THE NR 5 LEADING EDGE SLT ROD END ASSY (P/N 65-44651-12). OPERATIONAL CHECK AND INDICATION CHECK NORMAL. (M)