Jul 13 2000

Mr. Robert E. Scovill, Jr.
Tennessee

Dear Mr. Scovill:

Thank you for your June 5, 2000, letter and enclosures regarding the fuel drainage system in Cessna high-wing, single-engine airplanes. You stated that a design flaw exists in the integral wing fuel tank manufactured by Cessna and that this flaw may ultimately cause engine failure. You also suggested that the National Transportation Safety Board investigate this matter and make appropriate safety recommendations.

The Safety Board appreciates your safety concerns and has contacted the Federal Aviation Administration (FAA) to discuss this issue. The board has verified that the FAA has developed and is implementing a plan to determine if the integral wing fuel tanks of Cessna high-wing, single-engine airplanes comply with applicable certification standards. Board staff will carefully monitor the FAA's progress to ensure that appropriate actions are taken. In addition, all Board personnel tasked with investigating general aviation accidents will be made aware of the possibility that water contamination in the integral wing fuel tanks of Cessna high-wing, single -engine airplanes may not be detectable during preflight inspections.

Thank you for your sharing your concerns with me and for your interest in aviation safety.

Sincerely,

Jim Hall
Chairman