As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: POSSIBLE FUME EVENT TOWARDS REAR OF AC ONLY ON INITIAL CLIMB THEN AGAIN ON IDLE DESCENT, NEVER ON GROUND AFT FA DETECTED ACRID EXHAUST TYPE ODOR.DESCRIBED AS SMELLY FEET AND METALLIC. NOT DETECTED WHILE ON GROUND AIR OR APU BLEED. (OPEN)