What was found
ACRID SMOKE IN CABIN AFTER START UP. AVIONIC ON & ENVIRONMENTAL ON. MX CONFIRMED #2 TRANSPONDER WAS SOURCE OF FUMES. REMOVED AND REPLACED #2 MODE S TRANSPONDER.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ACRID SMOKE IN CABIN AFTER START UP. AVIONIC ON & ENVIRONMENTAL ON. MX CONFIRMED #2 TRANSPONDER WAS SOURCE OF FUMES. REMOVED AND REPLACED #2 MODE S TRANSPONDER.