What was found
PRELIMINARY REPORT - SMOKE IN APU . PILOT REPORT: APU AUTO SHUTDOWN AFTER ENG 1 START. PRELIMINARY MAINTENANCE, THIS ITEM IS DEFERRED TO DMI 66, MEL 49-10-01 CAT C, APU SYSTEM SELF TEST VIA MCDU PERFORMED, LOW OIL LEVEL, LUBRICATION LINE WAS FOUND BROKEN, MEL PROCEDURE ACCOMPLISHED. FROM DMI 66: IAW EWO-A32-49-9205 AND AMM 49-11-11-000-003 AND AMM 49-11-11-400-003. APU WAS REMOVED AND REPLACED. THE OPERATIONAL REST OF THE APU WAS ACCOMPLISHED SATISFACTORY.