SERIES AIRPLANES. THE AD IS N/A FOR 737-700 AIRCRAFT EARLIEST E/C: 1999-01-16 Category: AD Status: N/A Rev: 1 TO PREVENT DAMAGE TO AIRFRAME. HSTAB, ENGINES. Reason Freq: 1 AD AFFECT MODEL 737-100. -200. - 300. -400. AND -500 SERIES AIRPLANES. THE AD IS N/A FOR 737-700 AIRCRAFT EARLIEST E/