As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DUCT PRESSURE SPLIT ON TAKEOFF LT 18 RT 40 TO 45. CORRECTED TO LT 37, RT 41 BY LEVEL OFF AT FL 350. ACFT GROUNDED. COMPLIED WITH TASK CARD NG-36WC-00001: ENGINE BLEED AIR SYSTEM HEALTH CHECK. R & R PRSOV IAW AMM 36-11-04-000-801 AND AMM 36-11-04-400-801. COMPLETED ENGINE BLEED AIR CROSSOVER OPS TEST IAW AMM 36-11-00-710-801. OPS TEST GOOD. ALL READINGS WITHIN PARAMETERS. NO FURTHER DEFECTS NOTED.