Airworthiness Directive · Amendment 39-14518 · Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes
Superseded. A later AD replaced this one: AD 2017-06-08. Comply with the one in force.
This AD applies to all EMBRAER Model ERJ 170-100 LR, -100 STD, -100 SE, and -100 SU airplanes, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all EMBRAER Model ERJ 170 airplanes. This AD requires revising the Airworthiness Limitations section (ALS) of the airplane maintenance manual (AMM) to include new, specific maintenance tasks related to the incorporation of a new horizontal stabilizer actuator. This AD also requires revising the ALS of the AMM to include revised repetitive inspection intervals for certain tasks in the maintenance plan related to the aileron and flap/slat flight controls system. This AD results from safety assessments of the aileron and flap/slat flight controls system, conducted after the type certification of the airplane, which showed that some dormant faults did not comply with the safety assessment criteria. We are issuing this AD to prevent failure of the aileron and flap/slat controls 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 30 days after the effective date of this AD: Revise the Airworthiness Limitations section of the Instructions for Continued Airworthiness in the EMBRAER 170 AMM to include revisions to the maintenance tasks and repetitive inspections intervals, and applicable corrective actions that are approved by either the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA; or the Departmento de Aviacao Civil (DAC), (or its delegated agent). The revisions in paragraphs (f)(1) and (f)(2) of this AD are approved methods.
(1) EMBRAER Temporary Revision (TR) 1-3 of the EMBRAER 170 Maintenance Review Board (MRB) Report MRB-1621, dated December 27, 2004, to the EMBRAER 170 AMM includes revised repetitive inspection intervals for MRB tasks 27-11-00-002 (Operational Check of Control-Yoke Disconnect System) and 27-11-11-001 (Operational Check of Aileron Override Unit). Where the revision requires a compliance time that is less than 700 flight hours after the effective date of this AD, do the action within 700 flight hours after the effective date of this AD. Thereafter, except as provided by paragraph (h) of this AD, no alternative inspection intervals may be approved.
(2) The revised EMBRAER 170 AMM maintenance tasks identified in Table 1 of this AD include new maintenance tasks and inspections related to the incorporation of a new horizontal stabilizer actuator. Thereafter, except as provided by paragraph (h) of this AD, no alternative tasks or inspections may be approved.
| AMM chapter | Task Nos. | Date | Title |
|---|---|---|---|
| 27-11-03 | 27-11-03-710-801-A, 27-11-03-720-801-A | January 25, 2005 | Aileron Control Cable-Adjustment/Test. |
| 27-41-01 | 27-41-01-210-801-A, 27-41-01-220-801-A, 27-41-01-220-802-A | January 25, 2005 | Horizontal Stabilizer Trim Actuator—Inspection/Check. |
| 27-81-01 | 27-81-01-710-801-A | January 25, 2005 | Slat Actuator—Adjustment/Test. |
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.
