Airworthiness Directive · Amendment 39-16290 · Landing gear
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 and -145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP Airplanes
This AD applies to Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135BJ, -135ER, -135KE, -135KL, -135LR, -145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP airplanes; certificated in any category; equipped with landing gear electronic unit (LGEU) having part number (P/N) 355-022-002.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Unless already done, do the following actions:
(1) Within 12 months after the effective date of this AD, replace any LGEU having P/N 355-022-002 having a serial number (S/N) 1000 through 1999 inclusive with a new LGEU having P/N 355-022-003, in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 145-32-0120, Revision 02, dated February 17, 2009; or 145LEG-32-0032, Revision 02, dated February 17, 2009; as applicable.
(2) As of 12 months after the effective date of this AD, no person may install on any airplane an LGEU having a P/N 355-022-002 having a S/N 1000 through 1999 inclusive.
(3) Within 30 months after the effective date of this AD, replace any LGEU having P/N 355-022-002 having a serial number not identified in paragraph (g)(1) of this AD, with a new LGEU having P/N 355-022-003, in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 145-32-0120, Revision 02, dated February 17, 2009; or 145LEG-32-0032, Revision 02, dated February 17, 2009; as applicable.
(4) As of 30 months after the effective date of this AD, no person may install on any airplane an LGEU having a P/N 355-022-002 and a serial number not identified in paragraph (g)(1) of this AD.
(5) Replacing the LGEU is also acceptable for compliance with the corresponding requirement of paragraph (g)(1) or (g)(3) of this AD if done before the effective date of this AD in accordance with one of the service bulletins identified in Table 1 of this AD.
| EMBRAER Service Bulletin— | Revision— | Dated— |
|---|---|---|
| 145LEG-32-0032 | Original | October 8, 2008. |
| 145LEG-32-0032 | 01 | November 4, 2008. |
| 145-32-0120 | Original | September 15, 2008. |
| 145-32-0120 | 01 | November 4, 2008. |
Note 1: This AD differs from the MCAI and/or service information as follows: Although EMBRAER Service Bulletins 145LEG-32-0032, Revision 02, dated February 17, 2009; and 145-32-0120, Revision 02, dated February 17, 2009; specify that no person may install on any airplane an LGEU having P/N 355-022-002 as of 30 months after the effective date of this AD, we have determined that no LGEU having P/N 355-022-002 with a S/N 1000 through 1999 inclusive may be installed as of 12 months after the effective date of this AD. Allowing installation of those serial numbers beyond 12 months would not address the identified unsafe condition and ensure an adequate level of safety. This difference has been coordinated with the Agência Nacional de Aviação Civil (ANAC).
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
