AD 93-01-05 Airworthiness Directives: Allied Signal Aerospace Company, Air Transport Avionics (Formerly Bendix/King Air Transport Avionics Division) Traffic Alert and Collision Avoidance System II Processors

Makes named: beech, bendix. Models named: 65-A90, DHC-8-100, F.28 Mark 1000, Mark 4000, Convair 340, 440, G-159, G-IV. Read the applicability below — it usually turns on serial or part numbers too.

Traffic Alert and Collision Avoidance System II processors that are installed on, but not limited to the following airplanes (all serial numbers), certificated in any category: Aerospatiale ATR-42; Airbus Industries A-340; Beech Model 65-A90 airplanes; Boeing 727-100, 727-200, 737-200, 737-300, 737-400, 737-500, 747- 100, 747-200, 747-300, 747-400, 747SP, 757-200, 767-200, and 767-300 Series airplanes; de Havilland DHC-7 series and Model DHC-8-100 airplanes; Fokker Models F.28 Mark 1000 and Mark 4000 airplanes; General Dynamics Models Convair 340 and 440 airplanes; Gulfstream Models G-159 and G-IV airplanes; Lockheed L1011 series airplanes; McDonnell Douglas--DC-8-60, DC-9-31, DC-9-51, DC-10-10 DC-10-30, DC- 13-30F, MD-11, and MD-80 series airplanes; and Rockwell International NA-265-65 airplanes.

Prior to December 31, 1994, unless already accomplished. To prevent collisions or near misses caused by incompatibility between the traffic alert and collision avoidance system (TCAS) II processors and the current air traffic control system, accomplish the following: (a) Remove any TCAS II processor with a part number (P/N) suffix listed in the ``Existing P/N Suffix'' column of the table below, and install a corresponding TCAS II processor with a P/N listed in the ``New P/N Suffix'' column of the table below: ------------------------------------------------------------------------ New P/N Existing P/N suffix suffix ------------------------------------------------------------------------ -0102 or -0107................................................ -0108 -0203 or -0207................................................ -0208 -0301, -0302, or -0307........................................ -0308 -0402, -0405, or -0407........................................ -0408 -0504 or -0507................................................ -0508 -0606 or -0607................................................ -0608 -8101......................................................... -0108 ------------------------------------------------------------------------ (b) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished. (c) An alternative method of compliance or adjustment of the compliance times that provides an equivalent level of safety may be approved by the Manager, Atlanta Aircraft Certification Office, 1669 Phoenix Parkway, Suite 210C, Atlanta, Georgia 30349. The request shall be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Atlanta Aircraft Certification Office (ACO). Note: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Atlanta ACO. (d) Information that relates to the proposed AD may be examined at the FAA, Central Region, Office of the Assistant Chief Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri 64106. (e) This amendment (39-8787) becomes effective on February 4, 1994. Issued in Kansas City, Missouri, on December 29, 1993. Gerald W. Pierce, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. 93-32113 Filed 12-30-93; 8:45 am] BILLING CODE 4910-13-U