As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: ON TAKE OFF ROLL & CLIMB STRONG SMELL OF A MUSKY ODOR (DIRTY SOCK) CONFIRMED BY FA'S. LASTED ABOUT 10 MINUTES. MAINTENANCE FOUND EXCESSIVR GREASE ON #1 ENGINE FAN BLADES, CLEANED FAN BLADES AND GUIDE VANES IAW AMM 70-00-00.