What was found
AT CRUISE AT FL 360, MOMENTARY RED BOX AROUND N2 AND N1 VALUE FOR ENGINE 2 INDICATIONS. NO EXCEEDANCES OBSERVED. AFTER ENGINE SHUTDOWN AT THE GATE, THE NR 2 ENGINE N2 VALUE DISPLAY HAS A RED BOX AROUND IT. GROUNDED-YES. REF B737-900 FIM TASK 71-06 TASK 802, NR 2 ENGINE EXCEEDANCES PAGE SHOWS PREV FLT N2 RED LIMIT PEAK AT 91.3 AND RED AT 105.0 FOR 2.8 SEC, NR 2 EEC RECENT FAULTS PAGE SHOWS MESSAGE 73-20012,73-30102 AND 73-11282. C/W B737-900 AMM TASK 71-00-00-800-804-F00 STEP (2) THROUGH 2). ACCOMPLISHED BORESCOPE INSPECTION ON NR 2 ENGINE STAGES 1, 4, 8 HPC BLADES, PER AMM TASK 72-00-00-200-804-F00, NO DEFECTS FOUND. LEAK CHECK GOOD. ACCOMP AMM TASK 72-00-00-200-807-F00 HPT BLADES BORESCOPE. LEAK CHECK GOOD, NO DEFECTS. REMOVED AND REPLACED NR 2 ENGINE EEC, IAW AMM 73-21-60 / 401 FADEC SYSTEM TESTED OK. ACCOMP FIM 71-06 TASK 802 STEP F(1) POWER ASSURANCE CHECK, PER AMM 71-00-00-700-813-F00, ASSURANCE CHECK SATISFACTORY, NO FAULTS NOTED. ACCOMPLISHED FINAL STEPS OF FIM 71-06 TASK 802 F (A) EEC BITE TEST SUCCESSFUL, NO FAULTS NOTED. AMM TASK 71-00-800-804-F00 COMPLETED, NO FINDINGS. ALL FAULTS CLEARED. A/C OK FOR SERVICE.