What was found
LOWER FUSELAGE AVIONICS EQUIPMENT VENTILATION AIR INLET CHECK VALVE WITH CORROSION. REPLACED SKIN AIR INLET CHECK VALVE IAW AMM TASK 21-26-52-000-001-A AND AMM 21-26-52-400-001-A.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LOWER FUSELAGE AVIONICS EQUIPMENT VENTILATION AIR INLET CHECK VALVE WITH CORROSION. REPLACED SKIN AIR INLET CHECK VALVE IAW AMM TASK 21-26-52-000-001-A AND AMM 21-26-52-400-001-A.