As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REPORTED A SMELL IN THE CABIN WHEN SWITCHING THE BLEED AIR SOURCE FOR THE PACKS FROM ENGINE TO APU BLEED. PLACED ON MEL. FOUND CHAFED FUEL LINE THAT ROUTES TO APU FUEL SOLENOID. POSSIBLE OIL LEAK AS WELL THERE WAS NO OIL IN THE TANK. R2 APU FUEL LINE ON 2/12/2010.