IS AD APPLIES TO THE BOEING COMPANY MODEL 737-600. -703. -700C. -800. -900. AND -900ER SERIES AIRPLANES. CERTIFICATED IN ANY CATEGORY. LINE NUMBERS (L/NS) 1060 THROUGH 3289 INCLUSIVE. AND 3294. BUT EXCLUDING &NS 3138. 3158. 3169. 3175. 3216. 3224. 3253. AND 3274. FlIghtdocs- powered by flightdocs Cop