As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ENGINE BLEED AIR CROSSOVER OPERATIONAL TEST IAW AMM 36-11-00-710-801, THE NR 2 ENGINE DUCT PRESSURE WAS HIGH. N1 ABOVE 65 PERCENT, RT DUCT PRESSURE WAS 60 PSI. ACFT GROUNDED. ENGINE BLEED AIR SYS HEALTH CHECK REVEALED NO DEFECTS. REMOVED & REPLACED THE NR 2 ENGINE BLEED AIR REGULATOR & PRSOV IAW AMM 36-11-03, & AMM 36-11-04. LEAK CHECKED GOOD. ACCOMPLISHED ENGINE BLEED AIR CROSSOVER OPERATIONAL TEST. PASSED AT UPPER LIMIT 50 PSI.