As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:NAL ENG IDLE IS HIGHER THAN R ENG IN GND, FLT IDLE AS WELL AS WHEN SPOOLING UP. ALL ENG PARAMETERS EPR/EGT/N2/N3/FF SHOW HIGHER DURING GND/FLT IDLE & SPOOL UP NOTE: BLEED AIR DUCT PSI HAS SIGNIFICANT DIFFERENCE, BOTH PACKS.R&R L ENG IDLE CONTROL RELAY K10103 PER WDM 76-11-21 OP'S CHK'D PER AMM 71-00-00 TEST #10 LOW & HIGH IDLE TEST. CHECKED GOOD. DUCT PRESSURE SPLIT CAUSED BY DIFFERENCE IN ENG SPEED BETWEEN LEFT & RIGHT ENG'S.