WASHINGTON, July 21 -- Federal Aviation Administration has issued a rule called: Airworthiness Directives; The Boeing Company Airplanes.

The rule was published in the Federal Register on July 21 by Peter A. White, Deputy Director, Integrated Certificate Management Division, Aircraft Certification Service.

Summary: The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This AD was prompted by a report of a frame web crack at a certain fuselage station (STA) between certain stringers common to the frame web notch. This AD requires repetitive inspections for cracks of the frames and repair of cracks. The FAA is issuing this AD to address the unsaf...