As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A SMOKE ODOR WAS NOTICED BY THE FAS DURING PUSH BACK AND TAXI OUT. THE PILOTS CONFIRMED SMELL AND DEPLANED IN THE ALLEY WAY THROUGH THE MAIN CABIN DOOR. EVAC ON RAMP DUE TO WHITE SMOKE AND STRONG ODOR IN CABIN. C/W OPERATIONAL TEST OF THE A/C SYSTEM IAW AMM 21-51-00-710-801. LH PACK OPS CHECK GOOD. RT PACK OPS CHECK BAD. RT PACK AUTO FAIL AND SMOKE IN CABIN DUPLICATED. FOUND RT PACK TO BE SEIZED. REMOVED AND REPLACED THE RT ACM IAW AMM OPS CHECK GOOD.