What was found
LT WING TIP INBD T/E UPPER SURFACE STATIC WICK BASE HAS 2 SQ IN AREA OF CORROSION EXTENDING UNDER BASE BETWEEN BASE AND UPPER SKIN SURFACE. REF A300 AMM 57-00-00. REMOVED AND REPLACED UPPER BEAM ON WING TIP IAW A300-600 SRM 57-30-11-4 AND SRM 51-40-21. REMOVED AND REINSTALLED WING TIP IAW A300-600 AMM 57-30-11-4. REMOVED AND REPLACED STATIC WICK IAW A300-600 AMM 23-61-21-4, RESISTANCE CHECK GOOD, NAV PARK LIGHTS OPS CHECK GOOD IAW A300-600 AMM 33-41-31.