United States Government Publishing Office publisher pbl distributor dst United States National Archives and Records Administration Office of the Federal Register author aut Government Organization text government publication eng FR Regulatory Information 2003_register executive 2010-09-23 article Proposed Rules D09002ee1c8183411 D09002ee1c8183476 United States Department of Transportation originator org United States Government Agency or Subagency United States Federal Aviation Administration originator org United States Government Agency or Subagency The Federal Aviation Administration (FAA) proposes to adopt a new airworthiness directive (AD) that is applicable to certain serial numbers (SN's) of NARCO Avionics Inc. AT150 transponders. This proposal would require modification to the transponder by adding a resistor and transistor to the circuit board. This proposal is prompted by reports of AT150 transponders not recognizing and responding properly to Mode S interrogations from Mode S ground stations and Traffic Alert and Collision Avoidance System (TCAS-II) airborne equipment. The actions specified by the proposed AD are intended to prevent loss of aircraft airspace separation and the possibility of mid-air collision. 68 FR 8161 https://www.govinfo.gov/app/details/FR-2003-02-20/03-4056 03-4056 fr20fe03-10 RIN 2120-AA64 4910-13-U Docket No. 2002-NE-32-AD https://www.govinfo.gov/app/details/FR-2003-02-20/03-4056 https://www.govinfo.gov/content/pkg/FR-2003-02-20/html/03-4056.htm https://www.govinfo.gov/content/pkg/FR-2003-02-20/pdf/03-4056.pdf Air Transportation Aircraft Aviation Safety Safety 2 p. 8161 8162 68 FR 8161 Title 14 Part 39 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; NARCO Avionics Inc. AT150 Transponders; Federal Register Vol. 68, Issue PRORULE 03-4056 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 2003-04-21 Docket No. 2002-NE-32-AD 4910-13-U 03-4056 Notice of proposed rulemaking (NPRM).

The Federal Aviation Administration (FAA) proposes to adopt a new airworthiness directive (AD) that is applicable to certain serial numbers (SN's) of NARCO Avionics Inc. AT150 transponders. This proposal would require modification to the transponder by adding a resistor and transistor to the circuit board. This proposal is prompted by reports of AT150 transponders not recognizing and responding properly to Mode S interrogations from Mode S ground stations and Traffic Alert and Collision Avoidance System (TCAS-II) airborne equipment. The actions specified by the proposed AD are intended to prevent loss of aircraft airspace separation and the possibility of mid-air collision.

Comments must be received by April 21, 2003. Balram Rambrich, Aerospace Engineer, New York Aircraft Certification Office, FAA, Engine and Propeller Directorate, 10 Fifth Street, 3rd floor, Valley Stream, NY 11581-1200; telephone (516) 256-7507; fax (516) 256-2716. Air Transportation Aircraft Aviation Safety Safety Airworthiness directives: NARCO Avionics Inc., 9-ane-adcomment@faa.gov Vol. 68, no. 34 Office of the Federal Register, National Archives and Records Administration 2003-02-20 continuing daily deposited born digital 299 p. Table of Contents: AE 2.7: GS 4.107: AE 2.106: KF70.A2 https://www.govinfo.gov/app/details/FR-2003-02-20 P0b002ee1809e2089 0097-6326 0042-1219 0364-1406 769-004-00000-9 000582072 f:fr20fe03 https://www.govinfo.gov/app/details/FR-2003-02-20 https://www.govinfo.gov/content/pkg/FR-2003-02-20/pdf/FR-2003-02-20.pdf https://www.govinfo.gov/content/pkg/FR-2003-02-20/xml/FR-2003-02-20.xml fdlp 8153 8443 DGPO 2010-09-23 2024-06-07 FR-2003-02-20 machine generated eng FR FR-2003-02-20 68 34