As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU HAS HISTORY OF COLD SOAK START FAIL ON FIRST 2 START ATTEMPTS. TO ASSIST ENGINEERING REQUESTS BITE CHECK DATA. REPLACED INLET TEMP SENSOR PER MM 49 61 31 00 801 AND MM 49 61 31 400 801, PERFORMED APU BITE PROCEDURE 49 61 00 700 801 CURRENT STATUS PAGE NO FAILURES FOUND.