As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS AIRCRAFT WITH APU ON HAS EXHAUST SMELL ON TAKEOFF, APU HAS STRONG RAW FUEL SMELL BOTH FA'S COMPLAIN OF STRONG ODOR OF FUEL ON TAKEOFF SMELLS GO AWAY WHEN APU BLEED IS OFF. MAINTENANCE ISOLATED SOURCE TO APU FUEL FEED LINE LEAK. REPLACED APU FUEL FEED LINE IAW AMM 28-22-08. LEAK CHECK, AND REQUIRED FOLLOW-UP PROCEDURES FOR PNEUMATIC AND ECS SYSTEMS ALL SATISFACTORY.