Summary
The FAA proposes to adopt a new airworthiness directive (AD) for all Hamburger Flugzeugbau G.m.b.H. Model HFB 320 HANSA airplanes. This proposed AD would require revising the Limitations Section of the Airplane Flight Manual to prohibit operation of the airplane past its designed life limit for the primary structure, which is 15,000 flight hours or 15,000 fight cycles, whichever occurs first; and to require contacting the FAA for approval of analysis that the airplane is safe to continue operation beyond the designed life limit. This proposed AD is prompted by a report that all airplanes in operation might have met or exceeded the designed life limit for the primary structure. We are proposing this AD to prevent continued operation of an airplane beyond its designed life limit for the primary structure, which could result in reduced structural integrity of the airplane.