Airworthiness Directive · Amendment 39-16318 · Fuselage
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes
Superseded. A later AD replaced this one: AD 2012-07-08. Comply with the one in force.
This AD applies to all Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170-100 LR, -100 STD, -100 SE, -100 SU, -200 LR, -200 STD, and -200 SU airplanes; certificated in any category.
Note 1: This AD requires revisions to certain operator maintenance documents to include new inspections. Compliance with these inspections is required by 14 CFR 91.403(c). For airplanes that have been previously modified, altered, or repaired in the areas addressed by these inspections, the operator may not be able to accomplish the inspections described in the revisions. In this situation, to comply with 14 CFR 91.403(c), the operator must request approval for an alternative method of compliance according to paragraph (h)(1) of this AD. The request should include a description of changes to the required inspections that will ensure the continued operational safety of the airplane. The FAA has provided guidance for this determination in Advisory Circular (AC) 25-1529-1A.
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 90 days after the effective date of this AD, revise the ALS of the ICA to incorporate the inspection tasks identified in the EMBRAER temporary revisions (TRs) to Appendix A—Part 2 of the EMBRAER 170 Maintenance Review Board Report MRB-1621, listed in Table 1 of this AD. The initial compliance times for the tasks start from the applicable threshold times specified in the TRs for the corresponding tasks of the maintenance review board report or within 500 flight cycles after the effective date of this AD, whichever occurs later. For certain tasks, the compliance times depend on the pre-modification and post-modification status of the actions specified in the associated service bulletin, as specified in the “Applicability” column of the applicable TRs identified in Table 1 of this AD. The threshold values stated in the TRs referenced in Table 1 of this AD are total flight cycles on the airplane since the date of issuance of the original Brazilian airworthiness certificate or the date of issuance of the original Brazilian export certificate of airworthiness.
| TR | Date | Subject | Task No. |
|---|---|---|---|
| TR 4-1 | October 15, 2007 | Ram air turbine compartment, support structure and cutout structure—internal | 53-10-012-0002 53-10-012-0003 |
| Nose landing gear wheel well metallic structure | 53-10-021-0005 53-10-021-0006 | ||
| TR 4-3 | December 6, 2007 | Wing stub spar 3 side fitting—internal | 57-01-012-001 |
| Wing upper skin panels—external | 57-10-010-0002 | ||
| Fixed trailing edge lower skin panel—external | 57-50-002-0002 | ||
| Fixed trailing edge rib 4A—external | 57-50-005-0003 | ||
| Fixed trailing edge rib 6—internal | 57-50-005-0004 | ||
| TR 4-4 | January 18, 2008 | Wing stub main box lower—internal | 57-01-002-003 |
(2) After accomplishing the actions specified in paragraph (g)(1) of this AD, no alternative inspections or inspection intervals may be used unless the inspection or inspection interval is approved by the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA, or the Agência Nacional de Aviação Civil (ANAC) (or its delegated agent); or unless the inspection or interval is approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (h)(1) of this AD.
Note 2: This AD differs from the MCAI and/or service information as follows: No differences.
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.
