As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT APPROX. 300' AGL, THE APU FAILED. AT 400' ICASS MESSAGE APU FAIL MESSAGE ILLUMINATED. RETURNED TO FIELD. L;ANDING UNEVENTFUL. REMOVED FROM SERVICE. REF W/O 335965 TASK CARD: ECMP-APS2300 FMA R/R FOR WORK PERFORMED. REPLACED APU FUEL MODULE ASSY. RETURNED TO SERVICE.