As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU RELIABILITY COLD START ACCOMPLISHED ON FLIGHT LEG ONT-RFD SAT -47 FL 410, START UNSUCCESSFUL ON 3 ATTEMPTS.(<P>C/W OPS CHECK OF APU. NO DEFECTS NOTED, APU STARTS SUCCESSFULLY. APU COLD START MDDR 115327 REMAINS OPEN IAW AMM 49-11-00.</P><P>LP 1090199 - DUE TO APU FAILED TO START ON 3 ATTEMPTS. APU WAS PLACED ON DEFERRAL. </P>)