What was found
WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND RIGHT WING SPAR 2 AT RIB 10 CRACKED AT A3 AND A4 HOLES. MAJOR REPAIR, MAINTENANCE REPAIRED RIGHT WING SPAR 2, AT RIB 10, A3, AND A4 HOLES IAW EMB ETD 2012-170-015618-D REVISION D. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.