Service Bulletin 00029 applies to the CC11-100 Sport Cub and CC11-160 Carbon Cub models S/N 00001-00263. SB00029 relates to the fuel system installed on these airframes.
Cub Crafters, Inc. has determined that there is potential for a low spot to form in the left aft fuel line where condensation could collect below the rear corner of the left side window. This service bulletin provides instructions for retrofitting aircraft to include an additional fuel drain to avoid the potential of water collecting in the line.
Compliance with Part A is required prior to next flight and until Part B is complied with. Part B compliance is recommended at next 100 hour inspection. Continued inspections are required at each annual condition inspection.
If you have any questions, please contact Cub Crafters Customer Support at (509) 248-9491 or support@cubcrafters.com.
Victoria Schmidt
Technical Publications Manager
Cub Crafters, Inc.