As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APU START, FAULT LIGHT ILLUMINATED. ACFT GROUNDED. CHECKED AND FOUND EGT RISING DURING START UP AND SUBSEQUENT APU SHUTDOWN WITH FAULT LIGHT ILLUMINATING. CHECKED FAULT HISTORY IN CDU FOUND MSG 49-31016. RELEASED IAW MEL 49-1B. R & R APU FUEL CONTROL UNIT REF AMM 49-31-11. OPS TEST, LEAK CHECK GOOD, FAULT LIGHT DID NOT ILLUMINATE. THIS CLEARS MEL 49-1B.