As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE CLIMB BOTH CA&FO SMELLED STRONG MUSTY ODOR. SHUT X-BLEED AND TURNED PACK #1 OFF PER SUPPLEMENTARY PROCEDURE. ODOR DISSAPPATED THEREAFTER-PERFORMED TSM 05-50-00-810-831-A AND VERIFIED COCKPIT ODOR SOURCE AS BEING FROM PACK 1. REF. LG. PG. 3140569-2 FOR REQ'D PACK 1 DEFERRAL.