Source: https://www.federalregister.gov/articles/2009/08/31/E9-20698/special-conditions-rosemount-aerospace-inc-modification-to-airbus-model-a330-200-and-a330-300
Timestamp: 2016-06-30 21:11:47
Document Index: 145419229

Matched Legal Cases: ['§ 21', 'art 25', '§ 21', 'art 34', 'art 34', 'art 36', '§ 611', '§ 21', 'art 4', 'art 25', '§ 25', '§ 25', '§ 25', '§ 25', '§ 25', '§ 25', '§ 25', '§ 25']

Federal Register | Special Conditions: Rosemount Aerospace Inc. Modification to Airbus Model A330-200 and A330-300 Airplanes: Lithium-Battery Systems
Dates: The effective date of these special conditions is August 20, 2009. We must receive your comments by October 15, 2009.
-44730 (4 pages)
Document Number: E9-20698
Shorter URL: https://federalregister.gov/a/E9-20698 Related Topics
These special conditions are issued for the Airbus Model A330-200 and A330-300 airplanes. This airplane, as modified by Rosemount Aerospace, will have a novel or unusual design feature associated with lithium batteries. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. 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.
Under the provisions of § 21.101, Rosemount Aerospace Inc. must show that the Airbus Model A330-200 and A330-300 airplanes, as changed, continue to meet the applicable provisions of the regulation incorporated by reference in Type Certificate No. A46NM 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 regulation incorporated by reference in A46NM is 14 CFR 25.1353 at Amendment 25-38.
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 Rosemount Aerospace Inc. CVSS 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 Airbus Model A330-200 and A330-300 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 34 and the noise-certification requirements of 14 CFR part 36; and the FAA must issue a finding of regulatory adequacy under § 611 of 92, the “Noise Control Act of 1972.”
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 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 § 21.101.
The current regulations governing installation of batteries in large, transport-category airplanes were derived from Civil Air Regulations (CAR) part 4b.625(d) as part of the re-codification of CAR 4b that established 14 CFR part 25 in February, 1965. The new battery requirements, § 25.1353(c)(1) through (c)(4), basically reworded the CAR requirements.
Increased use of nickel-cadmium batteries in small airplanes resulted in increased incidents of battery fires and failures, which led to additional rulemaking affecting large, transport-category airplanes as well as small airplanes. On September 1, 1977, and March 1, 1978, respectively, the FAA issued § 25.1353(c)(5) and (c)(6), governing nickel-cadmium battery installations on large, transport-category airplanes.
At present, there is limited experience with use of rechargeable lithium batteries in applications involving commercial aviation. However, other users of this technology, ranging from wireless-telephone manufacturers to the electric-vehicle industry, have noted safety problems with lithium batteries. These problems include overcharging, over-discharging, and flammability of cell components.
These problems, experienced by users of lithium batteries, raise concerns about the use of these batteries in commercial aviation. The intent of the proposed special conditions is to establish appropriate airworthiness standards for lithium-battery installations in the Airbus Model A330-200 and A330-300 airplanes and to ensure, as required by §§ 25.1309 and 25.601, that these battery installations are not hazardous or unreliable.
4. Installations of lithium batteries must meet the requirements of § 25.863(a) through (d).
5. No corrosive fluids or gases that may escape from any lithium battery may damage surrounding structure, or any adjacent systems, equipment, or electrical wiring of the airplane, in such a way as to cause a major or more-severe failure condition, in accordance with § 25.1309 (b) and applicable regulatory guidance.
9. The instructions for continued airworthiness (ICA), required by § 25.1529 (and 26.11), must contain maintenance steps to:
These special conditions are not intended to replace § 25.1353(b) in the certification basis of the Airbus Model A330-200 and A330-300 airplanes. These special conditions apply only to lithium batteries and their installations. The requirements of § 25.1353(b) remain in effect for batteries and battery installations in Airbus Model A330-200 and A330-300 airplanes that do not use lithium batteries.