What was found
AFTER RIGHT ENGINE START, RT ENGINE BLEED EICAS MESSAGE. ON INITIAL CLIMB STARTING AT APPROXIMATELY 500' AGL UNTIL 7000' MESSAGE RT ENGINE DUCT PRESS INDICATION WAS 0 PSI. PERFORMED FIM TASK 36-10-FT837 AND VISUAL INSPECTION OF PRSOV, PER AMM 36-11-09. FOUND AIR LEAK DOWNSTREAM OF PRSOV AIR FEED DUCT WHEN MANUALLY SUPPLIED WITH PRESSURE. SUSPECT BLOWN SEAL AND COUPLER BETWEEN PYLON AND ENGINE DUCT CONNECTION. UPON INSPECTION OF NR 2 ENGINE BLEED ISSUE FOUND PRSOV FEED LINE LEAKING DOWN STREAM INTO ENGINE COMPARTMENT. FOUND LOOSE DUCT BELOW PRSOV. REINSTALLED DOUCT COUPLING, IAW AMM 36-11-01. LEAK CHECK GOOD. PERFORMED ENGINE RUN AT POWER, IAW AMM 71-00-00. ALL BLEED SYSTEMS WORK AS SHOULD.