Airworthiness Directive · Amendment 39-14352 · Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135BJ, -135ER, -135KE, -135KL, -135LR, -145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP Airplanes
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135BJ, -135ER, -135KE, -135KL, -135LR, -145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP Airplanes
This AD applies to EMBRAER Model EMB-135BJ, -135ER, -135KE, -135KL, -135LR, -145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP airplanes; as identified in EMBRAER Service Bulletin 145-30-0028, Revision 10, dated March 22, 2005; certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for certain EMBRAER airplane models as identified above. This AD requires modifying the total air temperature (TAT) sensor heating system. This AD also allows replacing the fully automated digital electronic control (FADEC) assemblies with new or modified assemblies as an additional means of compliance. This AD results from a report indicating that the FADEC unit failed to compensate for ice accretion on the engine fan blades due to a false temperature signal from the TAT sensor to the FADEC. We are issuing this AD to prevent failure of the TAT sensor, which could result in insufficient thrust to take off or (if coupled with the loss of an engine during takeoff) to abort the takeoff in a safe manner, and consequent 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 180 days after the effective date of this AD: Modify the TAT sensor heating system in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 145-30-0028, Revision 10, dated March 22, 2005.
Actions done before the effective date of this AD are acceptable for compliance with the corresponding requirements of this AD as specified in paragraphs (g)(1) and (g)(2) of this AD.
(1) Modifications in accordance with EMBRAER Service Bulletin 145-30-0028, Revision 09, dated March 1, 2004, are acceptable for compliance with paragraph (f) of this AD.
(2) Modifications in accordance with the revisions of the service bulletin in Table 1 of this AD are acceptable for compliance with the corresponding action in this AD, provided that the additional actions specified in PART III of the Accomplishment Instructions of EMBRAER Service Bulletin 145-30-0028, Revision 09, dated March 1, 2004, or Revision 10, dated March 22, 2005, are accomplished within the compliance time required by paragraph (f) of this AD.
| EMBRAER Service Bulletin | Revision | Date |
|---|---|---|
| 145-30-0028 | 04 | March 13, 2001. |
| 145-30-0028 | 05 | May 24, 2001. |
| 145-30-0028 | 06 | September 26, 2001. |
| 145-30-0028 | 07 | April 10, 2003. |
| 145-30-0028 | 08 | August 20, 2003. |
Replacing the existing FADEC assemblies with new or modified FADEC assemblies that include software version 7.6 or 8.0, in accordance with the Accomplishment Instructions of the applicable service bulletin listed in Table 2 of this AD, is acceptable for compliance with paragraph (f) of this AD. If the FADEC assemblies are replaced with new or modified assemblies as specified in this paragraph, all applicable engine indication and crew alerting system (EICAS), central maintenance computer (CMC), and IC-600 upgrades; as well as any other applicable actions associated with upgrading the EICAS, CMC, or IC-600; must also be done, as specified in the section of the service bulletin identified in the “Paragraph Where Upgrades are Identified” column of Table 2 of this AD.
| For EMBRAER Model— | EMBRAER Service Bulletin | Revision | Date | Paragraph where upgrades are identified |
|---|---|---|---|---|
| EMB-135ER, -135KE, -135KL, -135LR, -145, -145ER, -145MR, -145LR, -145XR, -145MP, -145EP | 145-73-0021 | Original | July 23, 2004 | 1.C., “Description—Time for Accomplishment”. |
| EMB-135ER, -135KE, -135KL, -135LR, -145, -145ER, -145MR, -145LR, -145XR, -145MP, -145EP | 145-73-0022 | 01 | July 15, 2004 | 1.C., “Description—Time for Accomplishment”. |
| EMB-135ER, -135KE, -135KL, -135LR, -145, -145ER, -145MR, -145LR, -145XR, -145MP, -145EP | 145-73-0023 | Original | June 28, 2004 | 1.C., “Description—Time for Accomplishment”. |
| EMB-135ER, -135KE, -135KL, -135LR, -145, -145ER, -145MR, -145LR, -145XR, -145MP, -145EP | 145-73-0024 | 01 | July 15, 2004 | 1.C., Description—Time for Accomplishment”. |
| EMB-135ER, -135KE, -135KL, -135LR, -145, -145ER, -145MR, -145LR, -145XR, -145MP, -145EP | 145-73-0025 | Original | July 23, 2004 | 1.C., “Description—Time for Accomplishment”. |
| EMB-135ER, -135KE, -135KL, -135LR, -145, -145ER, -145MR, -145LR, -145XR, -145MP, -145EP | 145-73-0027 | Original | March 15, 2005 | 1.B., “Concurrent Requirements”. |
| EMB-135ER, -135KE, -135KL, -135LR, -145, -145ER, -145MR, -145LR, -145XR, -145MP, -145EP | 145-73-0028 | Original | March 15, 2005 | 1.B., “Concurrent Requirements”. |
| EMB-135ER, -135KE, -135KL, -135LR, -145, -145ER, -145MR, -145LR, -145XR, -145MP, -145EP | 145-73-0029 | Original | May 4, 2005 | 1.B., “Concurrent Requirements”. |
| EMB-135ER, -135KE, -135KL, -135LR, -145, -145ER, -145MR, -145LR, -145XR, -145MP, -145EP | 145-73-0029 | 01 | June 27, 2005 | 1.B., “Concurrent Requirements”. |
| EMB-135ER, -135KE, -135KL, -135LR, -145, -145ER, -145MR, -145LR, -145XR, -145MP, -145EP | 145-73-0030 | Original | May 5, 2005 | 1.B., “Concurrent Requirements”. |
| EMB-135ER, -135KE, -135KL, -135LR, -145, -145ER, -145MR, -145LR, -145XR, -145MP, -145EP | 145-73-0031 | Original | May 5, 2005 | 1.B., “Concurrent Requirements”. |
| EMB-135BJ | 145LEG-73-0003 | 01 | July 15, 2004 | 1.C., “Description—Time for Accomplishment”. |
| EMB-135BJ | 145LEG-73-0004 | 02 | October 6, 2004 | 1.C., “Description—Time for Accomplishment”. |
| EMB-135BJ | 145LEG-73-0005 | Original | June 7, 2005 | 1.D., “Description”. |
| EMB-135BJ | 145LEG-73-0006 | Original | March 8, 2005 | 1.B., “Concurrent Requirements”. |
| EMB-145XR | 145-73-0026 | Original | June 28, 2004 | 1.C., “Description—Time for Accomplishment”. |
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.
Aircraft
