As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR INTERRUPT, RETURNED & EMER DECLARED. LANDING UNEVENTFUL. ACFT WAS OVERWEIGHT. DURING CLIMB THROUGH 10,000 FEET A STRONG BURNT RUBBER SMELL WAS REPORTED IN CABIN BUT DISSIPATED QUICKLY. ACCOMPLISHED MCM 21-96-01 WITH NO FINDINGS. R & R BOTH LT & RT AIR CONDITIONING REGULATORS.