As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) BETWEEN START UP OF 2-1 ENGINES CREW HAD A STRONG ODOR OF BURNING ELECTRICAL COMING FROM RADIO CRATE BEHING CAPTAIN, SHORTLY AFTER, NR 2 ADC BREAKER TRIPPED AND PILOTS PROCEED TO SHUT DOWN. AFTER INVESTIGATION, MAINTENANCE FOUND THAT NR 2 SERVO ALTIMETER WAS FAULTY AND CAUSE THE SHORT IN THE ADC. BOTH UNIT HAVE BEEN SENT FOR STRIP REPORT.