As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STARTED APU BUT HAD NO LIGHT OFF, SHUT DOWN APU, STARTED APU SECOND TIME AND IT STARTED NORMALLY. FOLLOWING APU START HOWEVER, HAD FUEL SMELL ENTER COCKPIT. (FLT7368) INSPECTED APU, NO LEAKS NOTED. COMPLIED WITH APU START/STOP. NO SMELL NOTED AT THIS TIME.