What was found
NR 1 ENGINE SHOWS FAULT CODE 78-21541 (EACH REVERSER SLEEVE HAS ONE POSITION SIGNAL OUT OF RANGE) AND REF LOGPAGE 11999947, FAULT CODE 75-20541 (THE LPTACC POSITION SIGNAL IS OUT OF RANGE). DEFERRED PER T/C 78273000. GROUNDED - YES. ACCOMPLISHED FIM 78-36 TASK 808. IN ADDITION DIRECTS TO PERFORM FIM 75-34 TASK 815 FOR GROUPED FAULTS 75-20541 AND 78-21541. PER FIM REPLACED EEC REF AMM 73-21-60. EEC SW VERIFIED TO BE CURRENT REF AMM 73-21-60-470-801-F00. ACCOMPLISHED ALL EEC TESTS AFTER INSTALL, ALL TESTS PASSED. NO FAULTS.