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TMCNet:  Special Conditions: ATR-GIE Avions de Transport Regional, Models ATR42-500 and ATR72-212A Airplanes; Aircraft Electronic System Security Protection From Unauthorized External Access

[November 13, 2012]

Special Conditions: ATR-GIE Avions de Transport Regional, Models ATR42-500 and ATR72-212A Airplanes; Aircraft Electronic System Security Protection From Unauthorized External Access

Nov 13, 2012 (FIND, Inc. via COMTEX) -- SUMMARY: These special conditions are issued for the ATR-GIE Avions de Transport Regional Models ATR42-500 and ATR72-212A airplanes. These airplanes will have novel or unusual design features associated with the architecture and connectivity capabilities of the airplanes' computer systems and networks, which may allow access to or by external computer systems and networks. Connectivity to, or access by, external systems and networks may result in security vulnerabilities to the airplanes' systems. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for these design features. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.

DATES: The effective date of these special conditions is November 5, 2012. We must receive your comments by December 13, 2012.

ADDRESSES: Send comments identified by docket number FAA-2012-0959 using any of the following methods: . Federal eRegulations Portal: Go to http://www.regulations.gov/and follow the online instructions for sending your comments electronically.

. Mail: Send comments to Docket Operations, M-30, U.S. Department of Transportation (DOT), 1200 New Jersey Avenue SE., Room W12-140, West Building Ground Floor, Washington, DC, 20590-0001.

. Hand Delivery or by Courier: Take comments to Docket Operations in Room W12-140 of the West Building Ground Floor at 1200 New Jersey Avenue SE., Washington, DC, between 8 a.m. and 5 p.m., Monday through Friday, except federal holidays.

. Fax: Fax comments to Docket Operations at 202-493-2251.

Privacy: The FAA will post all comments it receives, without change, to http://www.regulations.gov/, including any personal information the commenter provides. Using the search function of the docket web site, anyone can find and read the electronic form of all comments received into any FAA docket, including the name of the individual sending the comment (or signing the comment for an association, business, labor union, etc.). DOT's complete Privacy Act Statement can be found in the Federal Register published on April 11, 2000 (65 FR 19477-19478), as well as at http://DocketsInfo.dot.gov/.

Docket: Background documents or comments received may be read at [Page Number 67558] http://www.regulations.gov/at any time. Follow the online instructions for accessing the docket or go to the Docket Operations in Room W12-140 of the West Building Ground Floor at 1200 New Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except federal holidays.

FOR FURTHER INFORMATION CONTACT: Varun Khanna, FAA, Airplane and Flight Crew Interface Branch, ANM-111, Transport Airplane Directorate, Aircraft Certification Service, 1601 Lind Avenue SW., Renton, Washington 98057-3356; telephone 425-227-1298; facsimile 425-227-1149.

SUPPLEMENTARY INFORMATION: The FAA has determined that notice of, and opportunity for prior public comment on, these special conditions are impracticable because these procedures would significantly delay issuance of the design approval and thus delivery of the affected aircraft. In addition, the substance of these special conditions has been subject to the public comment process in several prior instances with no substantive comments received. The FAA therefore finds that good cause exists for making these special conditions effective upon issuance.

Comments Invited We invite interested people to take part in this rulemaking by sending written comments, data, or views. The most helpful comments reference a specific portion of the special conditions, explain the reason for any recommended change, and include supporting data.

We will consider all comments we receive by the closing date for comments. We may change these special conditions based on the comments we receive.

Background On January 22, 2009, ATR-GIE Avions de Transport Regional (hereafter referred to as "ATR-GIE") applied for a change to FAA Type Certificate No. A53EU to install a new avionics suite that includes connectivity capabilities between airplane computer systems and networks and external systems and networks in their Models ATR42-500 and ATR72-212A airplanes. Both airplanes are two-engine, turbo-propeller driven. The Model ATR42-500 has a maximum takeoff weight of 41,005 pounds and an emergency exit arrangement to support a maximum of 60 passengers. The Model ATR72-212A has a maximum takeoff weight of 49,603 pounds and an emergency exit arrangement to support a maximum of 72 passengers.

Type Certification Basis Under the provisions of Title 14, Code of Federal Regulations (14 CFR) 21.101, ATR-GIE must show that the Models ATR42-500 and ATR72-212A, as changed, continue to meet the applicable provisions of the regulations incorporated by reference in Type Certificate No. A53EU or the applicable regulations in effect on the date of application for the change. The regulations incorporated by reference in the type certificate are commonly referred to as the "original type certification basis." In addition, the certification basis includes certain special conditions, exemptions, and equivalent safety findings that are not relevant to these special conditions.

If the Administrator finds that the applicable airworthiness regulations (i.e., 14 CFR part 25) do not contain adequate or appropriate safety standards for the Models ATR42-500 and ATR72-212A airplanes because of a novel or unusual design feature, special conditions are prescribed under the provisions of [Section] 21.16.

Special conditions are initially applicable to the model for which they are issued. Should the type certificate for that model be amended later to include any other model that incorporates the same novel or unusual design features, or should any other model already included on the same type certificate be modified to incorporate the same novel or unusual design features, the special conditions would also apply to the other model.

In addition to the applicable airworthiness regulations and special conditions, the Models ATR42-500 and ATR72-212A airplanes must comply with the fuel vent and exhaust emission requirements of 14 CFR part 34 and the noise certification requirements of 14 CFR part 36.

The FAA issues special conditions, as defined in 14 CFR 11.19, in accordance with [Section] 11.38, and they become part of the type certification basis under [Section] 21.101.

Novel or Unusual Design Features The Models ATR42-500 and ATR72-212A airplanes will incorporate the following novel or unusual design features: Digital systems architecture composed of several connected networks. The proposed architecture and network configuration may be used for, or interfaced with, a diverse set of functions, including: . Flight-safety related control, communication, display, monitoring, and navigation systems (aircraft control functions); . Airline business and administrative support (airline information services); . Passenger information and entertainment systems (passenger entertainment services); and, . The capability to allow access to or by systems external to the airplane.

Discussion The Models ATR42-500 and ATR72-212A architecture and network configuration may allow increased connectivity to, or access by, external airplane sources, airline operations, and maintenance systems to the aircraft control functions and airline information services. The aircraft control functions and airline information services perform functions required for the safe operation and maintenance of the airplane. Previously these functions and services had very limited connectivity with external sources. The architecture and network configuration may allow the exploitation of network security vulnerabilities resulting in intentional or unintentional destruction, disruption, degradation, or exploitation of data, systems, and networks critical to the safety and maintenance of the airplane. The existing regulations and guidance material did not anticipate these types of airplane system architectures. Furthermore, 14 CFR regulations and current system safety assessment policy and techniques do not address potential security vulnerabilities, which could be exploited by unauthorized access to airplane systems, data buses, and servers. Therefore, these special conditions are issued to ensure that the security (i.e., confidentiality, integrity, and availability) of airplane systems is not compromised by unauthorized wired or wireless electronic connections.

Applicability As discussed above, these special conditions are applicable to the ATR-GIE Avions de Transport Regional Models ATR42-500 and ATR72-212A airplanes. Should ATR-GIE apply at a later date for a change to the type certificate to include another model incorporating the same novel or unusual design feature, the special conditions would apply to that model as well.

Conclusion This action affects only certain novel or unusual design features on two models of airplanes. It is not a rule of general applicability.

The substance of these special conditions has been subjected to the notice and comment period in several prior instances and has been derived [Page Number 67559] without substantive change from those previously issued. It is unlikely that prior public comment would result in a significant change from the substance contained herein. Therefore, because a delay would significantly affect the certification of the airplane, the FAA has determined that prior public notice and comment are unnecessary and impracticable, and good cause exists for adopting these special conditions upon issuance. The FAA is requesting comments to allow interested persons to submit views that may not have been submitted in response to the prior opportunities for comment described above.

List of Subjects in 14 CFR Part 25 Aircraft, Aviation safety, Reporting and recordkeeping requirements.

The authority citation for these special conditions is as follows: Authority: 49 U.S.C. 106(g), 40113, 44701, 44702, 44704.

The Special Conditions Accordingly, pursuant to the authority delegated to me by the Administrator, the following special conditions are issued as part of the type certification basis for ATR-GIE Avions de Transport Regional Models ATR42-500 and ATR72-212A airplanes.

1. Airplane Electronic System Security Protection from Unauthorized External Access. The applicant must ensure airplane electronic system security protection from access to or by unauthorized sources external to the airplane, including those possibly caused by maintenance activity.

2. The applicant must ensure that electronic system security threats are identified and assessed, and that effective electronic system security protection strategies are implemented to protect the airplane from all adverse impacts on safety, functionality, and continued airworthiness.

3. The applicant must establish appropriate procedures to allow the operator to ensure that continued airworthiness of the aircraft is maintained, including all post-type-certification modifications that may have an impact on the approved electronic system-security safeguards.

Issued in Renton, Washington, on November 5, 2012.

Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service.

[FR Doc. 2012-27517 Filed 11-9-12; 8:45 am] BILLING CODE 4910-13-P Vol. 77, No. 219 14 CFR Part 25; [Docket No. FAA-2012-0959; Special Conditions No. 25-473-SC] Rules and Regulations

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