ER WING - REAR SPAR VAPOR BARRIER - INSPECTION. REPAIR AND MODIFICATION. SERVICE BULLETIN MOS 28-SEP-2009 3378:04 AFL 5500 812 6312 TRAILING EDGE FLAP - NUMBER 3 AND NUMBER 6 TAILCONE ASSEMBLIES - INSPECTION AND REPAIR. SERVICE BULLETIN MOS AFL 5600 (s) WINGS - TRAILING EDGE FLAP - NUMBER 3 AND NUMBER 6 TAILCONE ASSEM