As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PSEU LIGHT ILLUMINATED AFTER LANDING AND REMAINED ILLUMINATED FOR A FEW MINUTES - LIGHT EXTINGUISHED. GROUNDED - YES. CONFIRMED FCC-B INTERFACE FAULTS. REMOVED AND REPLACED FCC-B REF B737-800 AMM 22-11-33. OP CHECK GOOD. NO PSEU FAULTS. HGS SHOWS #2 RAD ALT WITHIN TOLERANCE. ETOPS GROUND VERIFICATION SUCCESSFUL.