Source: https://www.federalregister.gov/articles/2002/01/22/02-1507/special-conditions-avions-marcel-dassault-breguet-aviation-amdba-model-falcon-10-airplane
Timestamp: 2015-12-01 05:44:42
Document Index: 741730724

Matched Legal Cases: ['art 25', 'art 25', '§ 21', 'art 25', 'art 34', 'art 25', 'art 36', '§ 11', '§ 11', '§ 21', '§ 21', '§ 21']

Federal Register | Special Conditions: Avions Marcel Dassault-Breguet Aviation (AMD/BA) Model Falcon 10 Airplane; High-Intensity Radiated Fields (HIRF)
Special Conditions: Avions Marcel Dassault-Breguet Aviation (AMD/BA) Model Falcon 10 Airplane; High-Intensity Radiated Fields (HIRF)
Publication Date: Tuesday, January 22, 2002
Dates: The effective date of these special conditions is January 9, 2002. Comments must be received on or before February 21, 2002.
Effective Date: 01/09/2002
Comments Close: 02/21/2002
67 FR 2793
-2795 (3 pages)
Docket No. NM209, Special Conditions No. 25-195-SC
Document Number: 02-1507
Shorter URL: https://federalregister.gov/a/02-1507 Related Topics
These special conditions are issued for Avions Marcel Dassault-Breguet Aviation (AMD/BA) Model Falcon 10 airplanes modified by Duncan Aviation, Inc. These modified airplanes will have novel and unusual design features when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. The modification incorporates the installation of an air data display unit that displays critical flight parameters to the flightcrew. The applicable airworthiness standards do not contain adequate or appropriate safety standards for the protection of these systems from the effects of high-intensity radiated fields. The special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that provided by the existing airworthiness standards.
The effective date of these special conditions is January 9, 2002. Comments must be received on or before February 21, 2002.
Comments on these special conditions may be mailed in duplicate to: Federal Aviation Administration, Transport Airplane Directorate, Attn: Rules Docket (ANM-113), Docket No. NM209, 1601 Lind Avenue SW., Renton, Washington, 98055-4056; or delivered in duplicate to the Transport Airplane Directorate at the above address. Comments must be marked: Docket No. NM209. Comments may be inspected in the Rules Docket weekdays, except Federal holidays, between 7:30 a.m. and 4:00 p.m.
The FAA has determined that notice and opportunity for prior public comment hereon are impracticable because these procedures would significantly delay issuance of the approval design and thus delivery of the affected airplanes. 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.
On November 7, 2001, Duncan Aviation Inc., 15745 South Airport Road, Battle Creek, MI, 49015, applied for a supplemental type certificate (STC) to modify the Avions Marcel Dassault-Breguet Aviation (AMD/BA) Model Falcon 10 airplane listed on Type Certificate A33EU. The Model Falcon 10 is a twin engine, small transport airplane. It is capable of carrying two flightcrew members and up to nine passengers. This model is powered by two Airesearch Manufacturing Company of Arizona Model TPE731-2-1C engines. The modification incorporates the installation of an air data display system that displays critical flight parameters to the flightcrew. These systems can be susceptible to disruption to command and/or response signals as a result of electrical and magnetic interference. This disruption of signals could result in loss of all critical flight displays and announcement functions or present misleading information to the pilot.
Under the provisions of 14 CFR 21.101, Duncan Aviation must show that the AMD/BA Model Falcon 10 airplanes, as changed, continue to meet the applicable provisions of the regulations incorporated by reference in Type Certificate No. A33EU, 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.” The certification basis for the modified AMD/BA Model Falcon 10 airplane includes 14 CFR part 25, dated February 1, 1965, including Amendments 25-1 through 25-20, as listed in the Type Certificate Data Sheet (TCDS) A33EU.
If the Administrator finds that the applicable airworthiness regulations (i.e., part 25, as amended) do not contain adequate or appropriate safety standards for the AMD/BA Model Falcon 10 airplane because of a novel or unusual design feature, special conditions are prescribed under the provisions of § 21.16.
In addition to the applicable airworthiness regulations and special conditions, the Model Falcon 10 airplane must comply with the part 25 fuel vent and exhaust emission requirements of 14 CFR part 34 and the part 25 noise certification requirements of 14 CFR part 36.
Special conditions, as defined in § 11.19, are issued in accordance with § 11.38 and become part of the type certification basis in accordance with § 21.101(b)(2).
Special conditions are initially applicable to the model for which they are issued. Should Duncan Aviation, Inc. apply for a supplemental type certificate to modify any other model included on the same type certificate to incorporate the same novel or unusual design feature, these special conditions would also apply to the other model under the provisions of § 21.101(a)(1).
The AMD/BA Model Falcon 10 airplane will incorporate the following novel or unusual design feature: an air data display unit that displays critical flight parameters to the flightcrew. These systems can be susceptible to disruption to command and/or response signals as a result of electrical and magnetic interference. This disruption of signals could result in loss of all critical flight displays and announcement functions or present misleading information to the pilot.
There is no specific regulation that addresses protection requirements for electrical and electronic systems from HIRF. Increased power levels from ground-based radio transmitters and the growing use of sensitive avionic/electronic and electrical systems to command and control airplanes have made it necessary to provide adequate protection.
To ensure that a level of safety is achieved equivalent to that intended by the regulations incorporated by reference, special conditions are needed for the AMD/BA Model Falcon 10 as modified by Duncan Aviation Inc. These special conditions require that new avionic/electronic and electrical systems such as the air data display unit, that perform critical functions, be designed and installed to preclude component damage and interruption of function due to both the direct and indirect effects of HIRF.
With the trend toward increased power levels from ground-based transmitters, plus the advent of space and satellite communications, coupled with electronic command and control of the airplane, the immunity of critical digital avionics systems to HIRF must be established.
It is not possible to precisely define the HIRF to which the airplane will be exposed in service. There is also uncertainty concerning the effectiveness of airframe shielding for HIRF. Furthermore, coupling of electromagnetic energy to cockpit-installed equipment through the cockpit window apertures is undefined. Based on surveys and analysis of existing HIRF emitters, an adequate level of protection exists when compliance with the HIRF protection special condition is shown with either paragraph 1 or paragraph 2, below:
10kHz-100 kHz
100kHz-500 kHz
500 kHz-2MHz
As discussed above, these special conditions are applicable to the Avions Marcel Dassault-Breguet Aviation (AMD/BA) Model Falcon 10 airplane modified by Duncan Aviation, Inc. Should Duncan apply at a later date for a supplemental type certificate to modify any other model included on the same type certificate to incorporate the same novel or unusual design feature, these special conditions would apply to that model as well under the provisions of § 21.101(a)(1).
This action affects only certain novel or unusual design features on AMD/BA Model Falcon 10 airplanes modified by Duncan Aviation, Inc. It is not a rule of general applicability and affects only the applicant who applied to the FAA for approval of these features on the airplane.
The substance of the special conditions for this airplane has been subjected to the notice and comment period in several prior instances and has been derived 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. For this reason, and because a delay would significantly affect the certification of the airplane, which is imminent, 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.
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 Avions Marcel Dassault-Breguet Aviation (AMD/BA) Model Falcon 10 airplanes modified by Duncan Aviation, Inc.
Issued in Renton, Washington, on January 9, 2002.
[FR Doc. 02-1507 Filed 1-18-02; 8:45 am]