As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED ON APU START CABIN FILLED UP WITH SMOKE. LAV SMOKE DETECTOR ILLUMINATED MX TROUBLESHOT AND FOUND FAULTY APU. A/C RELEASED IAW MEL 49-00-00 CAT. C CONTROL NUMBER 01068. A/C RETURNED TO SERVICE ON 10-02-00 IAH MX REMOVED/REPLACED THE APU AND CLEARED THE MEL ISSUED ON A/C/ A/C RETURNED TO SERVICE.CDR CLOSED REFERENCE SDR C2XAOOIA353 FOR CLOSING INFORMATION.