As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ODOR IN THE COCKPIT. SMELLED LIKE MACHINE OIL. NO UNUSUAL ODORS IN THE CABIN. COMPLETED JC 26L00021001, AND 26L00021002. NO ODOR IN TH ECOCKPIT AND CABIN. FOUND APU AS THE SOURCE OF ODOR, FOUND MULTIPLE OIL LEAKS. CHANGED THE APU. REMOVED AND REPLACED APU IAW CARD 26L31049005. OPS CHECKED GOOD.