Summary
We propose to revise an existing airworthiness directive (AD) that applies to certain aircraft equipped with wing lift struts. The existing AD currently requires repetitively inspecting the wing lift struts for corrosion; repetitively inspecting the wing lift strut forks for cracks; replacing any corroded wing lift strut; replacing any cracked wing lift strut fork; and repetitively replacing the wing lift strut forks at a specified time for certain airplanes. The existing AD also currently requires incorporating a ''NO STEP'' placard on the wing lift strut. Since we issued that AD, we have been informed that paragraph (c) in the existing AD is being misinterpreted and causing confusion. This proposed AD would clarify the intent of the language currently in paragraph (c) of the existing AD and would retain all other requirements of the existing AD. We are proposing this AD to correct the unsafe condition on these products.