What was found
AIRCRAFT ADC (AIR DATA COMPUTER) - 200 FT SPLIT ON APPROACH TO LAND IN HEAVY RAIN. FOUND MOISTURE IN STATIC PORTS (4 EA) DURING POST FLIGHT INSPECTION. CLOSER INSPECTION REVEALED CORROSION ON THE INTERIOR OF THE STATIC PORTS. EXISTING STATIC PORTS (ST600R) HAVE LARGER DIAMETER HOLES THAN THE REPLACEMENT STATIC PORTS WHICH MAY ALLOW WATER ENTRY. REPLACED STATIC PORTS WITH NEW ONES. NO FURTHER DEFECTS. (EA13200504025) (K)