Airworthiness Directive · Amendment 39-14371 · Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 Airplanes, and Model EMB-145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP Airplanes
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 Airplanes, and Model EMB-145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP Airplanes
This AD applies to EMBRAER Model EMB-135BJ airplanes, identified in EMBRAER Service Bulletin 145LEG-32-0020, Revision 01, June 21, 2005; and Model EMB-135ER, -135KE, -135KL, and -135LR airplanes, and Model EMB-145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP airplanes, identified in EMBRAER Service Bulletin 145-32-0104, Revision 03, dated June 21, 2005; certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for certain EMBRAER Model EMB-135 airplanes, and Model EMB-145, -145ER, - 145MR, -145LR, -145XR, -145MP, and -145EP airplanes. This AD requires modification of the logic of the steering system of the nose landing gear (NLG) wheel. This AD results from reports of the loss of directional control of the airplane on the ground after an internal failure of the NLG wheel steering system. We are issuing this AD to prevent failure of the NLG wheel steering system, which could result in reduced controllability of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 6,000 flight hours or 36 months after the effective date of this AD, whichever occurs first, modify the logic of the NLG wheel steering system in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 145LEG-32-0020, Revision 01, June 21, 2005 (for Model EMB-135BJ airplanes); or EMBRAER Service Bulletin 145-32-0104, Revision 03, dated June 21, 2005 (for Model EMB-135ER, -135KE, -135KL, and -135LR airplanes; and Model EMB-145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP airplanes); as applicable.
Actions accomplished before the effective date of this AD in accordance with the service bulletins listed in Table 1 of this AD are considered acceptable for compliance with the corresponding actions specified in this AD.
| EMBRAER service bulletin | Revision level | Date |
|---|---|---|
| 145-32-0104 | Original | January 18, 2005. |
| 145-32-0104 | 01 | April 4, 2005. |
| 145-32-0104 | 02 | May 19, 2005. |
| 145LEG-32-0020 | Original | April 1, 2005. |
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.
