What was found
ON TAKE-OFF NR 2 ENGINE COMPRESSOR STALL ON INITIAL RUN-UP FROM IDLE. R & R NR 2 ENG PRBC IAW MM 75-31-11. BLEED VALVE SCHEDULING COMPLETED PER P&W MM 72-00-00. R.I.I. COMPLETED FOR NR 2 ENG PRBC VALVE CHANGE IAW MM 75-31-11. DID NOT FIX OFF IDLE STALL. LUBRICATED 8TH & 13TH STAGE BLEED VALVES ON NR 2 ENG PER 75-30-00. R&R START BLEED CONTROL VALVE OPERATIONAL CHECK NORMAL. BLEED VALVE SCHEDULING COMPLETED OK PER PWA MM 72-00-00. R & R NR 2 ENG PRBC FOR PRECAUTIONARY IAW MM 75-31-11. BLEED VALVE SCHEDULING COMPLETED, OPS & LEAK CHECK OK. RII COMPLETED FOR PRBC CHECK. NO FAULTS NOTED. AIRCRAFT RETUNED TO SERVICE.