What was found
ON DESCENT POWER REDUCED TO APPROX 47% & INCREASED TO APPROX 70%. LT ENG POWER REMAINED AT 47% & DISPLAYED AN AMBER ENG CTRL FAIL L MESSAGE & A WHITE AT FAIL MESSAGE. COMPLETED CHECKLIST ITEMS & ENG REMAINED UNRESPONSIVE AT IDLE POWER FOR REMAINDER OF FLT. PERFORMED ENG DOWNLOAD & EMAILED TO MANUFACTURE SUPPORT FOR REVIEW. ONE ACTIVE FAULT FOUND MCID 0201 CVG ACTUATOR FAULT. PERFORMED MCID 0201 CVG ACTUATOR FAULT ISOLATION PROCEDURE. PERFORMED W5 HARNESS AND CVG ACTUATOR RESISTANCE CHECKS. WORK PERFORMED IN REF TO AS907-2-1S LMM 72-05-25. ALL READINGS ARE WITHIN LIMITS. NO DEFECTS NOTED ON W5 HARNESS. REMOVED W5 HARNESS. INSTALLED NEW HARNESS. WORK PERFORMED IAW AS907-2-1S LMM 76-10-01. OP CHECKS GOOD REMOVED AND REPLACED W/NEW ACTUATOR. PERFORMED IAW AS907-2-1S LMM 75-30-06. OPS/LEAK CHECKS GOOD. ORIG SUBMISSION DATE: 9/5/2023