As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DUCT PRESSURE SPLIT GREATER THAN 20 PSI, RT 44, LT 18 ON CL RT 42, LT 19 AT 340 LEVEL. ACFT GROUNDED. ACCOMPLISHED T/C NG-36WC-00001 UP TO STEP L PAR 5. FOUND A CRACK IN THE CONTROL PRESSURE LINE AT HSV. REMOVED AND REPLACED THE NR 1 ENGINE HSV CONTROL PRESSURE SENSE LINE IAW AMM 20-10-51. ACCOMPLISHED AN ENGINE BLEED AIR SENSE LINE LEAK CHECK IAW AMM 36-11-00, LEAK CHECKED GOOD.