required within 12 months of the release date. MAN N/A 22 Mar 2012 I CB Airframe 981180 CB 118 Inspection Stringer 6 Compliance with this Longeron Above Main Entrance Door customer bulletin is required within 12 months of the release date. Aircraft serial numbers 5306 through 5341, 5343. and 5348 MAN 14 Feb 2012