As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT HAD LOW POWER DURING TAKE OFF, DURING THE FOLLOW-UP INSPECTION THE MECH. FOUND PIECES OF SILICON MISSING AROUND THE CARB INTAKE SUSPECTED THAT IT WAS INGESTED THROUGH THE CARB DURING TAKE OFF. THIS ACFT HAD STC NR SA4428SW INSTALLED ON 9-16-98 PART OF THIS INSTALLATION WAS TO MOD THE AIR BOX AND INSTALL AN ADAPTER PLATE WITH SILICON SEALANT BETWEEN THE PLATE AND THE AIR BOX A PIECE OF THIS SEALANT WAS MISSING.