What was found
ENGINEERING REQUEST ACCOMPLISH RT ENGINE BLEED AIR SYS HEALTH CHECK. ACFT GROUNDED. PERFORMED T/C NG36NG-00001, ENGINE BLEED AIR SYS HEALTH CHECK ON NR 2 ENGINE UP TO STEP 5- STILL REQUIRES STEP 6- ENGINE BLEED AIR CROSSOVER OPS TEST. R & R PRECOOLER CONTROL VALVE, REF AMM 36-12-02. R & R HIGH STAGE REGULATOR, REF AMM 36-11-07. ACCOMPLISHED BLEED AIR CROSSOVER OPS TEST, ALL BLEED SYS INDICATIONS NORMAL AND WITHIN LIMITS IAW AMM 36-11-00-710-801. GROUND VERIFICATION ACCOMPLISHED AND PASSED.