What was found
APU COLD SOAK START: FL370, OAT-54. 1ST ATTEMPT NO EGT, 26% UNSUCCESSFUL. 2ND ATTEMPT NO EGT, 27% UNSUCCESSFUL, 3RD ATTEMPT NO EGT, 27% UNSUCCESSFUL.(<P>INFO NOTED, REF THIS LOG BLOCK 2. THIS CLOSES MDDR 156399.</P> / <P>ITEM 2: APU INOP DUE TO SEVERAL COLD SOAK START ATTEMPTS. TRANSFER TO DMI 156461 IAW MEL 49-11-01A, CAT C.</P> / <P>12NOV21 - 1429835 - ITEM # 6 - PDX - REMOVED AND REPLACED APU IGNITION UNIT IAW B767 AMM 49-41-03 OPS CHECK GOOD, NO FAULTS NOTED.</P> / <P>12NOV21 - 1429836 - ITEM# 9 - PDX - DUE TO SUCCESSFUL GROUND START OF APU IAW B767 AMM 49-41-02. THIS CLEARS DMI 156461. PLACARDS REMOVED</P>)