Source: https://www.federalregister.gov/documents/2006/07/20/E6-11562/special-condition-avidyne-corporation-inc-various-airplane-models-protection-of-systems-for-high
Timestamp: 2018-03-18 18:23:41
Document Index: 151690614

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

Federal Register :: Special Condition; Avidyne Corporation, Inc.; Various Airplane Models; Protection of Systems for High Intensity Radiated Fields (HIRF)
Special Condition; Avidyne Corporation, Inc.; Various Airplane Models; Protection of Systems for High Intensity Radiated Fields (HIRF)
The effective date of these special conditions is May 10, 2006. Comments must be received on or before August 21, 2006.
71 FR 41104
Docket No. CE244, Special Condition 23-184A-SC
E6-11562
https://www.federalregister.gov/d/E6-11562 https://www.federalregister.gov/d/E6-11562
These amended special conditions are issued to Avidyne Corporation, 55 Old Bedford Road, Lincoln, MA 01773. This is an amendment to special condition 23-184-SC, which was published on May 23, 2006 (71 FR 29574), for installation of an EFIS manufactured by Avidyne on various models. The original issue left off the Cirrus Design Corporation SR22, which was the first model to be certified under the STC.
The airplanes listed under this multi-model approval will have novel and unusual design features when compared Start Printed Page 41105to the state of technology envisaged in the applicable airworthiness standards. These novel and unusual design features include the installation of the Entegra II Avionics System, consisting of: (2) Model 700-0003-( ) Integrated Flight Displays (IFD), (2) Model 700-00011-( ) Magnetometer/OAT sensors, and (1) Model 700-00085-000 Keyboard/Controller. These components are all manufactured by Avidyne Corporation, Inc. 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.
Comments on these special conditions may be mailed in duplicate to: Federal Aviation Administration, Regional Counsel, ACE-7, Attention: Rules Docket Clerk, Docket No. CE244, Room 506, 901 Locust, Kansas City, Missouri 64106. All comments must be marked: Docket No. CE244. Comments may be inspected in the Rules Docket weekdays, except Federal holidays, between 7:30 a.m. and 4 p.m.
In early 2006, the Avidyne Corporation, 55 Old Bedford Road, Lincoln, MA 01773, made an application to the FAA for a new Supplemental Type Certificate for airplane models listed under the type certification basis. The models are currently approved under the type certification basis listed in the paragraph headed “Type Certification Basis.” The proposed modification incorporates a novel or unusual design feature, such as a digital avionics system, that may be vulnerable to HIRF external to the airplane.
Under the provisions of 14 CFR part 21, § 21.101, Avidyne Corporation, must show that affected airplane models, as changed, continue to meet the applicable provisions, of the regulations incorporated by reference in Type Certificate Numbers listed below 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” and can be found in the Type Certificate Numbers listed below. In addition, the type certification basis of airplane models that embody this modification will include §§ 23.1301, 23.1309, 23.1311, and 23.1321, 23.1322 of Amendment 23-49; exemptions, if any; and the terms of this special condition adopted by this rulemaking action.
Cessna Aircraft Company 172R, 172S 182S, 182T, T182T 3A12 3A1314 CFR Part 23. 14 CFR Part 23.
320, 320-1, 320A, 320B, 320C, 320D, 320E, 320F 340, 340A, 335, 340, 340A 3A25 CAR 3.
Cirrus Design Corporation SR20, SR22 A00009CH 14 CFR Part 23.
Diamond Aircraft Industries DA 20-A1, DA20-C1 A40 TA4CH A47CE 14 CFR Part 23. 14 CFR Part 21, 14 CFR Part 23.
A42 A57CE 14 CFR Part 21, 14 CFR Part 23.
Maule Aerospace Technology, Inc Bee Dee M-4, M-5-180C, MXT-7-160, M-4, M-5-200, MX-7-180A, M-4C, M-5-210C, MXT-7-180, M-4S, M-5-210TC, MX-7-180B, M-4T, M-5-220C, MXT-7-420, M-4-180C, M-5-235C, M-7-235B, M-4-180S, M-6-180, M-7-235A, M-4-180T, M-6-235, M-7-235C M-4-210 M-7-235 MX-7-180C, M-4-210C, MX-7-235, M-7-260, M-4-210S MX-7-180 MT-7-260, M-4-210T, MX-7-420, M-7-260C,M-4-220, MXT-7-180, M-7-420AC, M-4-220C, MT-7-235, MX-7-160C, M-4-220S, M-8-235, MX-7-180AC, M-4-220T, MX-7-160 3A23 CAR 3.
Partenavia Costruzioni Aeronauticas S.p.A P 68, P 68B, P 68C, P 68C-TC, P 68 “OBSERVER”, AP68 TP series 300, P68TC “OBSERVER”, AP68TP 600, P68 “OBSERVER 2” A31EU 14 CFR Part 23.
The New Piper Aircraft, Inc PA-28-160, PA-28-150, PA-28-180, PA-28S-160, PA-28S-180, PA-28-235, PA-28-140 2 PCLM, PA-28-140 4 PCLM, PA-28R-180, PA-28R-200, PA-28R-200, PA-28-180, PA-28-235, PA-28-151, PA-28-181, PA-28-181, PA-28-161, PA-28-161, PA-28-161, PA-28R-201, PA-28R-201T, PA-28-236, PA-28RT-201, PA-28RT-201, PA-28RT-201T, PA-28-201T
A-32-260, PA-32-300, PA-32S-300, PA-32R-300, PA-32RT-300, PA-32RT-300T, PA-32R-301, PA-32R-301, PA-32R-301T, PA-32-301, PA-32-301T, PA-32R-301T A3SO CAR 3.
Raytheon Aircraft Company A36, B36TC, G36 3A15 CAR 3.
58 and 58A 3A16 CAR 3.
SOCATA—Groupe AEROSPATIALE TB 20, TB 10, TB 21, TB9, TB 200 A51EU 14 CFR Part 23.
de Havilland Inc (Twin Otter) DHC-6-1, DHC-6-100, DHC-6-200, DHC-6-300 A9EA CAR 3.
Start Printed Page 41107
MU-2B-25, MU-2B-35, MU-2B-26, MU-2B-36, MU-2B-26A, MU-2B-36A, MU-2B-40, MU-2B-60 A10SW CAR 3.
PC-6, PC-6-H1, PC-6-H2, PC-6/350, PC-6/350-H1, PC-6/350-H2, PC-6/A, PC-6/A-H1, PC-6/A-H2, PC-6/B-H2, PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, PC-6/C-H2, PC-6/C1-H2 7A15 CAR 3.
The New Piper Aircraft, Inc PA-31, PA-31-300, PA-31-325, PA-31-350 A20SO CAR 3.
Raytheon Aircraft Company A100 (U-21F), A100A, A100C, B100 A14CE 14 CFR Part 23.
F90 A31CE 14 CFR Part 23.
65, 65-A90-1, A65, 65-A90-2, A65-8200, 65-A90-3, 65-80, 65-A90-4, 65-A80, 65-A80-8800, 65-B80, 65-88, 65-90, 65-A90, 70, B90, C90, C90A, E90, H90 3A20 CAR3, 14 CFR Part 23.
Twin Commander 560-F, 681, 680, 690, 680E, 685, 680F, 690A, 720, 690B, 680FL, 690C, 680FL(P), 690D, 680T, 695, 680V, 695A, 680W, 695B 2A4 CAR 3.
Avidyne Corporation 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 Electronic Flight Instrument Systems (EFIS), which are susceptible to the HIRF environment, that were not envisaged by the existing regulations for this type of airplane.
The combined effect of the technological advances in airplane design and the changing environment has resulted in an increased level of vulnerability of electrical and electronic systems required for the continued safe flight and landing of the airplane. Effective measures against the effects of exposure to HIRF must be provided by the design and installation of these systems. The accepted maximum energy Start Printed Page 41108levels in which civilian airplane system installations must be capable of operating safely are based on surveys and analysis of existing radio frequency emitters. These special conditions require that the airplane be evaluated under these energy levels for the protection of the electronic system and its associated wiring harness. These external threat levels, which are lower than previous required values, are believed to represent the worst case to which an airplane would be exposed in the operating environment.
As discussed above, these special conditions are applicable to one modification to the airplane models listed under the heading “Type Certification Basis.” Should Avidyne Corporation, apply to extend this modification to include additional airplane models, the special conditions would extend to these models as well under the provisions of § 21.101.
Issued in Kansas City, Missouri on July 14, 2006.
[FR Doc. E6-11562 Filed 7-19-06; 8:45 am]