Airworthiness Directive · Amendment 39-13924 · Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Series Airplanes
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Series Airplanes
This AD applies to all EMBRAER Model ERJ 170 series airplanes, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all EMBRAER Model ERJ 170 series airplanes. This AD requires revising the airplane flight manual (AFM) to include certain operational instructions and prohibit dispatch of any flight with the integrated electronic standby system (IESS) inoperative, even though it is allowed by the current version of the Master Minimum Equipment List; and performing a test to determine proper operation of the network interface card (NIC) communications and repairing if necessary. This AD also requires installing a certain software version of the PRIMUS EPIC system, after which the AFM revision must be removed from the AFM. This AD is prompted by reports of temporary loss of all cockpit display units (DU). We are issuing this AD to prevent temporary or possible sustained loss of all modular avionics units (MAU), which triggers a cascade of failures in systems dependent on MAUs functionalities. Such failures could reduce the flightcrew's situational awareness and increase workload and consequently reduce the ability of the flightcrew to maintain the safe flight and landing 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 72 hours after the effective date of the AD: Revise the Limitations Section of the EMBRAER ERJ 170 AFM by inserting a copy of EMBRAER Operational Bulletin 170-011/04, Revision 1, dated December 23, 2004, into the AFM.
Within 30 days after the effective date of this AD, or before or concurrently with doing the software installation required by paragraph (h) of this AD, whichever occurs first: Do a test to determine proper operation of the NIC communications in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 170-31-0003, dated December 23, 2004. If any failure is detected, before further flight, repair the airplane in accordance with a method approved by either the Manager, International Branch, ANM-116, FAA, Transport Airplane Directorate; or the Departmento de Aviacao Civil (DAC) (or its delegated agent).
Within 40 days or 300 flight hours after the effective date of this AD, whichever occurs first: Install the software version of the PRIMUS EPIC system identified as “load 15.3” or higher, in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 170-31-0002, dated December 23, 2004. After installation of this software, remove the AFM revision required by paragraph (f) of this AD.
(i) Although EMBRAER Service Bulletin 170-31-0003 specifies to submit certain information to the airplane manufacturer, this AD does not include that requirement.
