Document ID: chunk:federal_register_of_legislation:F2007L02412:body:0:p1
Version: federal_register_of_legislation:F2007L02412
Segment Type: other
Provision Reference: 
Character Range: 0–8855

AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.001(1) of CASR 1998.  The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Radio Communication and Navigation Equipment
AD/RAD/88  Honeywell Communications and  10/2007 DM
           Mode S Transponder Units

Applicability:  Honeywell RCZ-833J, RCZ-833K, RCZ-851J, RCZ-851K and RCZ-854J communications (COM) units and Honeywell XS-856A, XS-856B and XS-857A Mode S transponder units with the following part numbers (P/N):
                                                                                                                                                                                                                                                                                          Communications Unit                                   P/N          Mode S Transponder  P/N
                                                                                                                                                                                                                                                                                          RCZ-833J                                              7510700-763  XS-856A             7517400-865
                                                                                                                                                                                                                                                                                                                                                7510700-863                      7517400-885
                                                                                                                                                                                                                                                                                          RCZ-833K                                              7510700-765  XS-856B             7517400-866
                                                                                                                                                                                                                                                                                                                                                7510700-875                      7517400-886
                                                                                                                                                                                                                                                                                          RCZ-851J                                              7510700-813  XS-857A             7517400-876
                                                                                                                                                                                                                                                                                          RCZ-851K                                              7510700-815                      7517400-896
                                                                                                                                                                                                                                                                                          RCZ-854J                                              7510700-725
                                                                                                                                                                                                                                                                                                                                                7510700-825
                Note 1:  These units are known to be fitted to, but not limited to, the following aeroplane models:
                Manufacturer                                                                                                                                                                                                                                                              Model
                      British Aerospace                                                                                                                                                                                                                                                   Jetstream 4100 series
                     Bombardier                                                                                                                                                                                                                                                           BD-700-1A10 and BD-700-1A11
                     Cessna                                                                                                                                                                                                                                                               525, 550, 560 and 650 series
                     Dassault                                                                                                                                                                                                                                                             Falcon 900EX and 2000EX series
                     Embraer                                                                                                                                                                                                                                                              EMB-135 and EMB-145 series
                     Learjet                                                                                                                                                                                                                                                              45
                     Lockheed                                                                                                                                                                                                                                                             282-44A-05 (C130B) and 382G series
                     Raytheon                                                                                                                                                                                                                                                             Hawker 800 (including U-125A), 800XP and 1000 series
Requirement:       1. For aircraft equipped with Honeywell RCZ-833J, RCZ-833K, RCZ-851J,
                   RCZ-851K or RCZ-854J COM units, with P/Ns listed in the applicability section of this Directive:
                     a. If not previously accomplished in accordance with AD/RAD/84 - Amend the applicable Aircraft Flight Manual (AFM) by inserting the following statement into the Normal Procedures Section:
                        "After completion of any 4096 ATC Code change (also referred to as Mode A Code), check the status of the transponder.  If the transponder indicates that it is in standby mode, re-select the desired mode (i.e. the transponder should be in the active mode)."
                Amendment of the AFM Normal Procedures Section may be accomplished by inserting a copy of this Directive into the AFM.
                     b. If not previously accomplished in accordance with AD/RAD/84 - Modify the COM unit by incorporating Honeywell Service Bulletin (SB) Publication No A21-3851-005 dated 29 July 2005 or Honeywell SB Publication No
                     A24-3851-002 dated 28 July 2005 as applicable.
                Note 2:  Accomplishment of the modification or replacement with a modified unit in accordance with the instructions contained in Honeywell Alert Service Bulletin (ASB) 7510700-23-A0048 dated 27 January 2006 and, as necessary, ASB
                7517400-23-A6015 Revision 001 dated 29 July 2005 is an acceptable alternative to the Requirement1.b.modification.
                     c. Replace the XS-852E/F Mode S transponder of the COM unit with