What was found
PDX - C4 AIRCRAFT SKIN UNDER LOWER TCAS ANTENNA HAS CORROSION BUILD UP AROUND TWO ATTCHMENT SCREWS. REPAIRED IAW DHC-8-200 SRM 51-20-11 AND 51-20-16.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PDX - C4 AIRCRAFT SKIN UNDER LOWER TCAS ANTENNA HAS CORROSION BUILD UP AROUND TWO ATTCHMENT SCREWS. REPAIRED IAW DHC-8-200 SRM 51-20-11 AND 51-20-16.