What was found
DURING HEAVY CHECK IN MSP, MAINTENANCE FOUND CORROSION COMMON TO THE FWD SERVICE DOOR SURROUND FRAMES. FR 17 P/N C02316001-011 AND FR 20 P/N C02316003-011 ARE AFFECTED. COMPLIED WITH ER/A 634015-14 PRI REV 0, ER/A 634015-14 PRI REV 1 , ER/A 634015-14 PRI REV 2, ER/A 634015-14 PRI REV 3 AND ER/A 634015-14 REV ORIGINAL SECTION 1 ASSOCIATED ER/A 00-634015 ADDED FOR AC 8305. (LP# 1631331; AIRCRAFT WAS GROUNDED)