What was found
GUM - LOWER FUSELAGE APPROXIMATELY 6 O''CLOCK POSITION HAS CORROSION BUILD UP THROUGH OUT LEFT AND RIGHT FORWARD OF RAM AIR INLET. SKIN OF AIRCRAFT CORRODED AT BS 720A - 720B BETWEEN S28L AND S27R. AREA OF DEFECT DIRECTLY ABOVE RAM AIR DOOR INLET SCOOP. MAINTENANCE CUT OUT CORRODED AREA APPROX 8.375 INCH IN LENGTH AND 3.375 INCH IN WIDTH. REPAIRED PER RM 53-30-3, FIG 1 AND ALL PANELS AND FAIRINGS RE-INSTALLED. RELEASED AIRCRAFT FOR SERVICE. (M)