What was found
LEFT ENGINE POPPING NOISE REPORTED BY TOWER AND OTHER AIRCRAFT. INSPECTED BOTH ENGINE INLETS AND OUTLETS, MASTER CHIP DETECTORS AND MCD'S IAW AMM 79-21- NTF. DOWNLOADED PCMCIA CARD BUT CARD UNABLE TO LOAD, R & R PCMCIA CARD IAW AMM 31-36. FOUND EPCS MESSAGE FOR NR 1 ENGINE, S-PDIU, S-274-18, S-275-15 AND S-354-29 IAW FIM 77-35 / FIM 71-01. REPLACED EEC ALTTERNATOR STATOR AND EEC IAW AMM 73-21. OPS TESTED OK. R & R THE 14TH STAGE BLEED VALVE IAW AMM 75-32. R & R NR 1 ENGINE ALTERNATOR OIL SEALS IAW AMM 72-61. INSTALLED THE STATOR IAW AMM 73-21. PERFORMED HIGH POWER RUN AND NO LEAKS NOTED.