SAIB CE-01-27

SPECIAL

AIRWORTHINESS

INFORMATION

BULLETIN Aircraft Certification Service Washington, DC U.S. Department of Transportation Federal Aviation Administration No. CE-01-27 June 8, 2001 We post SAIBs on the internet at "av-info.faa.gov" This is information only. Recommendations are not mandatory.

Introduction This Special Airworthiness Information Bulletin (SAIB) alerts you, an owner or operator, of Piper PA-18- 150 Series airplanes of possible corrosion that may occur due to accumulation of debris under the floor of the aircraft.

Background During the import/recurrent inspection of a Piper PA-18-150 Super Cub aircraft, the FAA inspector noted that there was a heavy accumulation of debris, (i.e. scraps of paper, insulation type material, grass, dirt, etc.)

under the aircraft floor where the access was limited. To gain access to the area, the applicant volunteered to install two inspection panels on the belly of the aircraft. This made the area easier to clean and inspect.

This SAIB is a result of that inspection.

Recommendation The FAA is recommending that you perform inspection and possible clean up of the area under floorboards.

You may accomplish this by adding inspection panels to the belly of the aircraft or by removal of the floorboards. This will provide access to the hard to reach areas for inspection, clean up, and future corrosion prevention of the fuselage structure. You may install access panels in accordance with Advisory Circular (AC) 43.13-1B paragraph 2-14. You can read AC 43.13-1B at FAA’s web site: “www.faa.gov”.

For Further Information Contact M Hassan Amini, Aerospace Engineer, FAA Small Aircraft Directorate, Atlanta Aircraft Certification Office, One Crown Center, 1895 Phoenix Boulevard, Suite 450, Atlanta, GA 30349;

telephone: (770) 703-6080; facsimile: (770) 703-6097; email: m.h.amini@faa.gov