Source: https://www.federalregister.gov/documents/2003/11/07/03-28013/special-conditions-garmin-international-inc-efis-on-the-diamond-da-40-protection-of-systems-for-high
Timestamp: 2017-09-25 09:06:57
Document Index: 351177419

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

Federal Register :: Special Conditions; Garmin International, Inc. EFIS on the Diamond DA-40; Protection of Systems for High Intensity Radiated Fields (HIRF)
Special Conditions; Garmin International, Inc. EFIS on the Diamond DA-40; Protection of Systems for High Intensity Radiated Fields (HIRF)
The effective date of these special conditions is October 22, 2003. Comments must be received on or before December 8, 2003.
68 FR 63011
63011-63013 (3 pages)
Docket No. CE199, Special Condition 23-139-SC
03-28013
1. Protection of Electrical and Electronic Systems from High Intensity Radiated Fields (HIRF)
https://www.federalregister.gov/d/03-28013 https://www.federalregister.gov/d/03-28013
Start Preamble Start Printed Page 63011
These special conditions are issued to Garmin International, Inc., 1200 E. 151st St., Olathe, KS 66062, for a Supplemental Type Certificate for the Diamond Aircraft Industries DA-40. 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 an electronic flight instrument system (EFIS) display, Model G-1000, manufactured by Garmin International, Inc. 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.
Comments on these special conditions may be mailed in duplicate to: Federal Aviation Administration, Regional Counsel, ACE-7, Attention: Rules Docket Clerk, Docket No. CE199, Room 506, 901 Locust, Kansas City, Missouri 64106. All comments must be marked: Docket No. CE199. Comments may be inspected in the Rules Docket weekdays, except Federal holidays, between 7:30 a.m. and 4 p.m.
Interested persons are invited to submit such written data, views, or arguments, as they may desire. Communications should identify the regulatory docket or notice number and be submitted in duplicate to the address specified above. All communications received on or before the closing date for comments will be considered by the Administrator. The special conditions may be changed in light of the comments received. All comments received will be available in the Rules Docket for examination by interested persons, both before and after the closing date for comments. A report summarizing each substantive public contact with FAA personnel concerning this rulemaking will be filed in the docket. Commenters wishing the FAA to acknowledge receipt of their comments submitted in response to this notice must include a self-addressed, stamped postcard on which the following statement is made: “Comments to Docket No. CE199.” The postcard will be date stamped and returned to the commenter.
On March 6, 2003, Garmin International, Inc., 1200 E. 151st St., Olathe, KS 66062, made an application to the FAA for a new Supplemental Type Certificate for the Diamond Aircraft Industries DA-40 airplane. The DA-40 is currently approved under TC No. A47CE. 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, Garmin International, Inc. must show that the Diamond DA-40 aircraft meets the following original certification basis provisions or the applicable regulations in effect on the date of application for the change to the DA-40: Type Certification under 14 CFR part 21, § 21.29, including the following requirements: Joint Aviation Requirements (JAR) 23, Initial Issue, dated March 11, 1994. The DA-40 was certificated using the FAA/JAA validation certification procedures and significant regulatory differences were addressed. Therefore, the certification basis is equivalent to 14 CFR part 23, effective February 1, 1965, including Amendments 23-1 through Amendment 23-51. 14 CFR part 36, effective December 1, 1969, including Amendments 36-1 through Amendment 36-21. Special Condition 23-107-SC, applicable to the Model DA-40 for protection of systems for High Intensity Radiated Fields, published on June 7, 2001. 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 Start Printed Page 63012for 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.
Garmin International, Inc. plans to incorporate certain novel and unusual design features into the Diamond DA-40 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.
Compliance with HIRF requirements may be demonstrated by tests, analysis, models, similarity with existing systems, or any combination of these. Service experience alone is not acceptable since normal flight operations may not include an exposure to the HIRF environment. Reliance on a system with similar design features for redundancy as a means of protection Start Printed Page 63013against the effects of external HIRF is generally insufficient since all elements of a redundant system are likely to be exposed to the fields concurrently.
As discussed above, these special conditions are applicable to the Diamond DA-40 airplane. Should Garmin International, 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.
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 Diamond DA-40 airplane modified by Garmin International, Inc. to add a G-1000 EFIS system.
Each system that performs critical functions must be designed and installed to ensure that the operations, and operational capabilities of these systems to perform critical functions, are not adversely affected when the airplane is exposed to high intensity radiated electromagnetic fields external to the airplane.
[FR Doc. 03-28013 Filed 11-6-03; 8:45 am]