As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU PNUEMATICS INOP(<P>TRANSFER TO MDDR #143232, CAT C, PER DDG 49-11-01-01. DUE 12 MAR21. PLACARDS INSTALLED, MX ACTION COMPLIED WITH.</P><P>LP 1254846: T/S PER FIM 49-11 FT A21 FIG 130. NO MINI FLAG. REMOVED AND REPLACED ECU. OPS CHECK GOOD IAW AMM 49-61-05. THIS CLEARS DMI 143232. PLACARDS REMOVED. MCC NOTIFIED.</P>)