What was found
WEAR ON FUSELAGE SKIN IN LONGERON 21RT BETWEEN STA Y=503-508,SM, CARD 28, ZONE 110. WEAR ON FUSELAGE SKIN IN LONGERON 21RT BETWEEN STA Y=503-508 OUT OF LIMITS. ORIGINAL THICKNESS 0.050" REMAINING THICKNESS 0.035", DAMAGE WAS REPAIRED IAW ETI-17-16-084, REV 1 AND ER/A 547867-14, REV ORIGINAL. IAW ER/A 547867-14, REV ORIGINAL SECTION II. RII COMPLETED.