CTHIn ForceLegislation
AD/RAD/51 Amdt 1 - Rockwell International/Collins Aviation Division TDR-94D Transponder
Radio Communication and Navigation EquipRadio Communication and Navigation Equipment
Start here
Get a plain-English read of Radio Communication and Navigation Equip
Turn the raw legal text into a practical explanation grounded in AD/RAD/51 Amdt 1 - Rockwell International/Collins Aviation Division TDR-94D Transponder.
Radio Communication and Navigation Equipment
| AD/RAD/51 Amdt 1 | Rockwell International/Collins AviationDivision TDR-94D Transponder | 10/2008 |
|---|
| Applicability: | Rockwell International/Collins Aviation Division TDR-94D Mode S Transponder, part number (P/N) 622-9210-002, installed on, but not limited to, the following aeroplanes: |
|---|---|
| Beechcraft 300 series.Bombardier (de Havilland) DHC-8 series,Bombardier (Canadair) Challenger CL-601 series,British Aerospace HS 125-700 series,Dassault Mystere-Falcon 200 and 900,Grumman Gulfstream G1159 series,Saab 340A and 340B, andShort Brothers SD3-60. | |
| Requirement: | 1. If not previously accomplished in accordance with the original issue of this Directive or United States Federal Aviation Administration (FAA) AD 93-04-02, fabricate a placard with the following words in letters at least 25mm in height and install the placard within the pilot’s clear view on the instrument panel: |
| ‘OPERATION OF TCAS II IN ANY MODE OTHERTHAN THE “TA ONLY” MODE IS PROHIBITED’ | |
| 2. If not previously accomplished in accordance with the original issue of this Directive or FAA AD 93-04-02, modify the software of the transponder in accordance with the Accomplishment Instructions of Collins Service Bulletin TDR-94/94D-34-6 Revision 2 dated 21 September 1992. (The placard mandated by Requirement 1 is no longer necessary after this Modification is incorporated.) | |
| Note: FAA AD 93-04-02 Amendment 39-8504 refers. | |
| Compliance: | For Requirement 1 - Prior to 25 October 2008. |
| For Requirement 2 - Prior to 1 December 2008. | |
|---|---|
| This Amendment becomes effective on 25 September 2008. | |
| Background: | Tests have revealed that these Mode S Transponders, when operating in the resolution advisory mode, may loose the capability of co-ordinating with other aircraft. This could result in a near miss situation or mid-air collision. Compliance with this Directive is intended to prevent collisions or near misses caused by failure of these Mode S Transponders. |