What was found
ON CLIMBOUT RT DUCT PRESSURE READ 45PSI, LT DUCT PRESSURE READ 22-23 PSI. AS WE LEVELED AT OUR CRUISE ALTITUDES BOTH NEEDLES LT AND RT READ 335 PSI AND WERE NORMAL. LEAK CHECKED LINES FOUND LINE ON BLEED AIR REGULATOR LOOSE AND FITTING ON PRECOOLER CONTROL VALVE LEAKING. TIGHTENED LINE AND REPLACED SEAL ON VALVE. NO OTHER FAULTS NOTED REF MM 36-11-00, MM 36-00-00, MM 36-12-02. PERFORMED HIGH POWER RUN 2 MIN, NO FAULTS NOTED.