Source: https://www.federalregister.gov/documents/2007/07/19/E7-14050/special-conditions-symphony-aircraft-industries-inc-model-sa160-protection-of-systems-for-high
Timestamp: 2018-09-22 03:22:17
Document Index: 752219126

Matched Legal Cases: ['art 21', '§\u200921', 'art 23', 'art 36', '§\u200923', '§\u200923', '§\u200923', '§\u200921', '§\u200921']

Federal Register :: Special Conditions; Symphony Aircraft Industries, Inc. Model SA160; Protection of Systems for High Intensity Radiated Fields (HIRF)
Special Conditions; Symphony Aircraft Industries, Inc. Model SA160; Protection of Systems for High Intensity Radiated Fields (HIRF)
A Rule by the Federal Aviation Administration on 07/19/2007
The effective date of these special conditions is July 6, 2007. Comments must be received on or before August 20, 2007.
39555-39557 (3 pages)
Docket No. CE271, Special Condition 23-211-SC
https://www.federalregister.gov/d/E7-14050 https://www.federalregister.gov/d/E7-14050
These special conditions are issued to Symphony Aircraft Industries, Inc. for a type design change to the SA160 airplane. This airplane will have novel and unusual design features when compared to the state of technology envisaged in the applicable airworthiness standards. These novel and unusual design features include the installation of electronic flight instrument system (EFIS) displays (Entegra Avionics Suite) manufactured by Avidyne Corporation for which the applicable regulations do not contain adequate or appropriate airworthiness standards for the protection of these systems from the effects of high intensity radiated fields (HIRF). These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to the airworthiness standards applicable to these airplanes.
Mail two copies of your comments to: Federal Aviation Administration, Regional Counsel, ACE-7, Attention: Rules Docket Clerk, Docket No. CE271, Room 506, 901 Locust, Kansas City, Missouri 64106. All comments must be marked: Docket No. CE271. You may inspect comments in the Rules Docket weekdays, except Federal holidays, between 7:30 a.m. and 4 p.m.
We invite interested persons to take part in this rulemaking by sending written data, views, or comments. Identify the regulatory docket or notice number and submit two copies to the address specified above. 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 file in the docket all comments we receive on or before the closing date as well as a report summarizing each substantive public contact with FAA personnel about these special conditions. All comments received will be available in the Rules Docket for examination by interested persons, both before and after the closing date for comments.
We will consider all comments we receive by the closing date for comments. We will consider comments filed late if it is possible to do so without incurring expense or delay. Based on the comments we receive, we may change these special conditions.
If you want the FAA to acknowledge receipt of your comments, include a self-addressed, stamped postcard on which the following statement is made: “Comments to Docket No. CE271.” The postcard will be date stamped and we will mail it back to you.
On November 11, 2006, Symphony Aircraft Industries, Inc. applied to the FAA for a type design change to the SA160 airplane. The Symphony Aircraft SA160 is currently approved under TC No. A46CE. The proposed modification incorporates a novel or unusual design feature, such as digital avionics consisting of an EFIS that is vulnerable to HIRF external to the airplane.
Under the provisions of 14 CFR part 21, § 21.101, Symphony Aircraft Industries, Inc. must show that the SA160 aircraft design change meets the following provisions, or the applicable regulations in effect on the date of application for the change to the project: Cert basis, 14 CFR part 23 effective February 1, 1965, including Amendments 23-1 through 23-53; 14 CFR part 36 effective November 18, 1969, including Amendments 36-1 through 36-22; as applicable, and § 23.1301 of Amendment 23-20; §§ 23.1309, 23.1311, and 23.1321 of Amendment 23-49; and § 23.1322 of Amendment 23-43; exemptions, if any; and the special conditions adopted by this rulemaking action.
Special conditions are initially applicable to the model for which they are issued. Should the applicant apply for a supplemental type certificate to modify any other model already included on the same type certificate to incorporate the same novel or unusual design feature, the special conditions would also apply to the other model under the provisions of § 21.101. Start Printed Page 39556
Symphony Aircraft Industries, Inc. plans to incorporate certain novel and unusual design features into an airplane for which the airworthiness standards do not contain adequate or appropriate safety standards for protection from the effects of HIRF. These features include EFIS, which are susceptible to the HIRF environment, that were not envisaged by the existing regulations for this type of airplane.
or, (2) The applicant may demonstrate by a system test and analysis that the electrical and electronic systems that perform critical functions can withstand a minimum threat of 100 volts per meter peak rms, electrical field strength, from 10 kHz to 18 GHz. When using this test to show compliance with the HIRF requirements, no credit is given for signal attenuation due to installation.
As discussed above, these special conditions are applicable to the SA160 Avidyne Entegra Avionics Suite project. Should Symphony Aircraft Industries, Inc. apply at a later date for a supplemental type certificate to modify any other model on the same type certificate to incorporate the same novel or unusual design feature, the special conditions would apply to that model as well under the provisions of § 21.101.
End Authority Start Printed Page 39557
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 SA160 Avidyne Entegra Avionics Suite Project airplane modified by Symphony Aircraft Industries, Inc. to add an EFIS.
Issued in Kansas City, Missouri, on July 6, 2007.
[FR Doc. E7-14050 Filed 7-18-07; 8:45 am]