COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Beechcraft 55, 58 and 95-55 (Baron) Series Aeroplanes AD/BEECH 55/72 Pilot and Copilot Seat Tracks and Seat Frames 13/88 Applicability: 1. Models 58, 58A with S/Nos TH-579 through TH-702 58P, 58PA with S/Nos TJ-12 through TJ-27 58TC, 58TCA with S/Nos TK-1, TK-2. 2. Models 95-B55, 95-B55A with S/Nos TC-1918 through TC-2456 E55, E55A with S/Nos TE-1071 through TE-1201. 3. Models 58, 58A with S/Nos TH-703 through TH-1388 TH-1390 through TH-1395. 58P, 58PA with S/Nos TJ-28 through TJ-435 TJ-437 through TJ-443. 58TC, 58TCA with S/Nos TK-3 through TK-146 TK-148 through TK-150. Requirement: For Para 1. Action in accordance with Beechcraft Mandatory SB 2010 Rev 1 Part I. For Para 2. Action in accordance with Beechcraft Mandatory SB 2010 Rev 1 Part II. For Para 3. Action in accordance with Beechcraft Mandatory SB 2010 Rev 1 Part I and Part II. Note 1: FAA AD 88-21-02 refers. Note 2: Compliance with Beechcraft SB 2233 is an acceptable alternative to modification per SB 2010 Part I. Compliance: At the next scheduled inspection for Maintenance Release issue after 29 December 1988. Background: To prevent failure of pilot and copilot seat attachment during an emergency landing.