As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GNDED. FLIGHT ATTENDANT'S REPORTED HAVING A HEADACHE FROM A DIRTY MUSTY SOCK SMELL DURING CLIMB & DESCENT. FOUND THE APU STARTER PAD LEAKING OIL, REPLACED THE PACKING & ACCOMPLISHED A SATISFACTORY LEAK & OPERATIONAL CHECK IAW AMM 49-42-51.