As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WITH APU ON & APU BLEED & PACKS OPEN, THERE IS A STRONG EXHAUST/FUEL SMELL IN AIRCRAFT. DEFERRED APU FUEL SHUT OFF VALVE PER MEL 28-5. MTX PROCEDURE C/W. FOUND LEAKING APU FUEL CONTROL. R&R APU FUEL CONTROL IAW ENGINE MANUAL 49-32-01. OPC AND LEAK CHK GOOD.