AD 2007-07-12 Airworthiness Directives; Honeywell Flight Management Systems (FMSs) Served by Honeywell NZ-2000 Navigation Computers Approved Under Technical Standard Order (TSO) TSO-C115a, and IC-800 Integrated Avionics Computers Approved Under TSOs C9c, C52a, and C115a; as Installed on Various Transport Category Airplanes

This AD applies to all Honeywell NZ-2000 navigation computers approved under Technical Standard Order (TSO) TSO-C115a, and IC-800 integrated avionics computers approved under TSOs C9c, C52a, and C115a; as installed on transport category airplanes, certificated in any category, including but not limited to the airplanes identified in Table 1 of this AD. Table 1.—Known Affected Airplanes Manufacturer Model Bombardier, Inc CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604) airplanes. Dassault Aviation Mystere-Falcon 900 airplanes. Gulfstream Aerospace Corporation G-1159A, G-IV, and GV airplanes. Lockheed 382G series airplanes. Raytheon Aircraft Company BAe.125 Series 800A (including C-29A and U-125) airplanes. Hawker 800XP and 1000 airplanes.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Identification of Part Number/Modification Level (f) Within 14 days after the effective date of this AD: Determine if the installed NZ-2000 navigation computers and IC-800 integrated avionics computers serving FMSs have computer part numbers and software modification levels identified in Honeywell Technical Newsletter A23-6111-008, Revision 001, dated February 22, 2007. For purposes of this AD, airplanes with FMS computers having a part number and software modification level identified in the newsletter are “affected airplanes.” Revision of Airplane Flight Manual (AFM) (g) For any affected airplane: Within 14 days after the effective date of this AD, revise the Limitations section of the applicable AFM to incorporate the information included in Appendix A of Honeywell Technical Newsletter A23-6111-008, Revision 001, dated February 22, 2007. This may be done by inserting a copy of Appendix A of the newsletter into the AFM. Alternative Methods of Compliance (AMOCs) (h)(1) The Manager, Los Angeles Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. (2) To request a different method of compliance or a different compliance time for this AD, follow the procedures in 14 CFR 39.19. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. Material Incorporated by Reference (i) You must use Honeywell Technical Newsletter A23-6111-008, Revision 001, dated February 22, 2007, to perform the actions that are required by this AD, unless the AD specifies otherwise. The Director of the Federal Register approved the incorporation by reference of this document in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Honeywell, P.O. Box 21111, Phoenix, AZ 85036-1111, for a copy of this service information. You may review copies at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html . Issued in Renton, Washington, on March 23, 2007. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E7-5896 Filed 4-2-07; 8:45 am] BILLING CODE 4910-13-P

This AD results from reports of in-flight unannunciated shifts of computed position in airplanes with the subject flight management system (FMS) computers identified in paragraph (c) of this AD. We are issuing this AD to prevent a shift in the FMS computed position, which could result in uncommanded deviations from the intended flight path of the airplane and, if those deviations are undetected by the flight crew, compromised terrain/traffic avoidance.