What was found
NR 2 ENGINE HAS FAULT CODES 75-10362 HPTACC POSITION SIGNAL IS OUT OF RANGE, 75-20412 HPTACC POSITION SIGNAL DISAGREE, 75-10412 HPTACC POSITION SIGNAL DISAGREE. ACFT GROUNDED. CONFIRMED FAULT, NR 2 EEC BITE FAULT HISTORY SHOW FAULT CODES 75-10362, 75-20412, AND 75-10412 ON FLIGHT LEGS 0, 1, 5, AND 9. REPLACED 2 EEC REF AMM TASK 73-21-60. ACCOMPLISHED ENGINE RUN-UP, EEC TEST, & ACTUATOR TEST, OPS CHECK NORMAL REF AMM 71-00-00 AND AMM 73-21-00. VERIFIED THE CORRECT EEC SOFTWARE IAW IPC 73-21-60-01A.