As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU AUTO SHUTDOWN & FILLED ENTIRE CABIN WITH SMOKE. ALSO, SAW SMOKE COMING OUT OF TAILPIPE. [SUP 06-01-07] REPLACED APU. RESTARTED APU NORMALLY, INDICATIONS NORMAL. OPERATED PACKS AND NO FURTHER SMOKE OR ASSOCIATED OIL SMELL IN CABIN. A/C RETURNED TO SERVICE.