Airworthiness Directive · Amendment 39-14788 · Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135BJ and EMB-145XR Airplanes
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135BJ and EMB-145XR Airplanes
Model EMB-145XR airplanes, as listed in EMBRAER Service Bulletin 145-30-0035, Revision 03, dated March 8, 2005; and Model EMB-135BJ airplanes, as listed in EMBRAER Service Bulletin 145LEG-30-0002, Revision 01, dated January 4, 2005; certificated in any category.
This amendment adopts a new airworthiness directive (AD), applicable to certain Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135BJ and Model EMB-145XR airplanes. This AD requires, for all airplanes, installation of an additional indication device to the clear-ice indication system. For certain airplanes, this AD requires replacing the existing clear-ice indication lamp with a new, improved lamp. For certain other airplanes, this AD also requires modifying certain electrical connections to add an indication device to the clear-ice indication system, removing a certain placard, and re- activating the clear-ice additional indicator lamp. The actions specified by this AD are intended to prevent undetected build-up of clear ice on the wing surfaces, which could lead to reduced controllability of the airplane. This action is intended to address the identified unsafe condition.
To prevent undetected build-up of clear ice on the wing surfaces, which could lead to reduced controllability of the airplane, accomplish the following:
(a) For Model EMB-145XR airplanes: Within 24 months or 5,000 flight hours after the effective date of this AD, whichever comes first, perform the actions specified in paragraphs (a)(1) and (a)(2) of this AD, as applicable, in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 145-30-0035, Revision 03, dated March 8, 2005.
(1) Install complete electrical connections and provisions to add an additional indication device to the clear-ice indication system, as specified in Part I of the Accomplishment Instructions of the service bulletin.
(2) Replace the existing clear-ice indication lamp with a new lamp having a new part number, as specified in Part II of the Accomplishment Instructions of the service bulletin.
(b) For Model EMB-135BJ airplanes: Within 24 months or 5,000 flight hours after the effective date of this AD, whichever comes first, perform the actions in paragraphs (b)(1), (b)(2), (b)(3), and (b)(4) of this AD, as applicable, in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 145LEG-30-0002, Revision 01, dated January 4, 2005.
(1) Install complete electrical connections and provisions to add an additional indication device to the clear-ice indication system, as specified in Part I of the Accomplishment Instructions of the service bulletin.
(2) Modify the electrical connections of factory-provisioned airplanes to add an additional indication device to the clear-ice indication system, as specified in Part II of the Accomplishment Instructions of the service bulletin.
(3) Remove the “Clear-Ice Inoperative” placard and reactivate the clear-ice additional indicator lamp, as specified in Part III of the Accomplishment Instructions of the service bulletin.
(4) Replace the existing clear-ice indicator lamp with a new, improved lamp having a new part number, as specified in Part IV or V of the Accomplishment Instructions of the service bulletin.
(c) Actions accomplished before the effective date of this AD in accordance with EMBRAER Service Bulletin 145-30-0035, Revision 02, dated January 6, 2005, are considered acceptable for compliance with the corresponding actions specified in this AD.
(d)(1) In accordance with 14 CFR 39.19, the Manager, International Branch, ANM-116, FAA, Transport Airplane Directorate, is authorized to approve alternative methods of compliance for this AD.
(2) Before using any AMOC approved in accordance with § 39.19 on any airplane to which the AMOC applies, notify the appropriate principal inspector in the FAA Flight Standards Certificate Holding District Office.
Note 1: The subject of this AD is addressed in Brazilian airworthiness directive 2004-01-01, effective January 27, 2004.
(e) Unless otherwise specified in this AD, the actions must be done in accordance with EMBRAER Service Bulletin 145-30-0035, Revision 03, dated March 8, 2005; or EMBRAER Service Bulletin 145LEG-30-0002, Revision 01, dated January 4, 2005; as applicable. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. To get copies of this service information, contact Empresa Brasileira de Aeronautica S.A. (EMBRAER), P.O. Box 343—CEP 12.225, Sao Jose dos Campos—SP, Brazil. To inspect copies of this service information, go to the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or to the National Archives and Records Administration (NARA). For information on the availability of this material at the NARA, call (202) 741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
