As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIAGNOSTICS REPORTED NR 2 ENGINE TREND DATA SHOWS A SHIFT IN DELTA CRUISE INDICATIVE OF EGT INDICATION ERRORS. ACFT GROUNDED. CJ9 HARNESS DID NOT PASS RESISTANCE CHECK. RESISTANCE VALUES WERE PAST ITS LIMIT WHILE CHECKING PINS 7 AND 8 GOING TO THE S1 PROBE. REPLACED CJ9 HARNESS ON THE NR 2 ENG. OPS NORMAL, REF MM TASK 77-21-01-200-801-F00. S2 PROBE INSULATION RESISTANCE CHECK FAILED, REPLACED S2 PROBE ON THE NR 2 ENG. OPS NORMAL REF MM 77-21-01.