Piper PA-18 Super Cub — Service Bulletins

This Service Bulletin No. 0003 addresses safety concerns for all Piper PA-18 Super Cub aircraft equipped with 24-gallon fuel tanks installed under STC #SA02171AK by Cub Crafters, Inc. The bulletin is particularly relevant for tanks manufactured prior to June 2003, as these have been reported to develop leaks and cracks, posing a risk of in-flight fires. Compliance with the bulletin is mandatory and should be carried out immediately to ensure the safety of the aircraft and its occupants. The document provides instructions for inspection and potential removal of the affected fuel tanks, as well as contact information for assistance with the process.

• Affected aircraft: All PA-18 series with STC #SA02171AK installed by Cub Crafters, Inc.
• Immediate compliance is mandatory to prevent leaks and in-flight fires.
• Inspect for fuel leaks before each flight, especially near fuel tank drains.
• Tanks manufactured prior to June 2003 must be removed and returned for re-welding.
• No charge for re-welding by Dakota Cub; Cub Crafters will assist with tank removal and reinstallation at no charge.