80 FR 57291 - Special Conditions: Honda Aircraft Company, Model HA-420 HondaJet, Lithium-ion Batteries
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 80, Issue 184 (September 23, 2015)
Federal Aviation Administration
Federal Register Volume 80, Issue 184 (September 23, 2015)
| Page Range | 57291-57293 | |
| FR Document | 2015-24164 |
[Federal Register Volume 80, Number 184 (Wednesday, September 23, 2015)] [Rules and Regulations] [Pages 57291-57293] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2015-24164] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 23 [Docket No.FAA-2015-0721; Notice No. 23-269-SC] Special Conditions: Honda Aircraft Company, Model HA-420 HondaJet, Lithium-ion Batteries AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final special conditions. ----------------------------------------------------------------------- SUMMARY: These special conditions are issued for the Honda Aircraft Company, Model HA-420 airplane. This airplane will have a novel or unusual design feature associated with the installation of lithium-ion (Li-ion) 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. DATES: These special conditions are effective September 23, 2015. FOR FURTHER INFORMATION CONTACT: Les Lyne, Policies & Procedures Branch, ACE-114, Federal Aviation Administration, Small Airplane Directorate, Aircraft Certification Service, 901 Locust; Kansas City, Missouri 64106; telephone (816) 329-4171; facsimile (816) 329-4090. SUPPLEMENTARY INFORMATION: Background On October 11, 2006, Honda Aircraft Company applied for a type certificate for their new Model HA-420. On October 10, 2013, Honda Aircraft Company requested an extension with an effective application date of October 1, 2013. This extension changed the type certification basis to amendment 23-62. The HA-420 is a four to five passenger (depending on configuration), two crew, lightweight business jet with a 43,000-foot service ceiling and a maximum takeoff weight of 9963 pounds. The airplane is powered by two GE-Honda Aero Engines (GHAE) HF-120 turbofan engines. The current regulatory requirements for part 23 airplanes do not contain adequate requirements for the application of Li-ion batteries in airborne applications. This type of battery possesses certain failure, operational characteristics, and maintenance requirements that differ significantly from that of the nickel cadmium and lead acid rechargeable batteries currently approved in other normal, utility, acrobatic, and commuter category airplanes. Therefore, the FAA is proposing this special condition to require that (1) all characteristics of the rechargeable lithium batteries and their installation that could affect safe operation of the HA-420 are addressed, and (2) appropriate Instructions for Continued Airworthiness which include maintenance requirements are established to ensure the availability of electrical power from the batteries when needed. Type Certification Basis Under the provisions of 14 CFR 21.17, Honda Aircraft Company must show that the HA-420 meets the applicable provisions of part 23, as amended by Amendments 23-1 through 23-62 thereto. If the Administrator finds that the applicable airworthiness regulations (i.e., 14 CFR part 23) do not contain adequate or appropriate safety standards for the HA-420 because of a novel or unusual design feature, special conditions are prescribed under the provisions of Sec. 21.16. In addition to the applicable airworthiness regulations and special conditions, the HA-420 must comply with the fuel vent and exhaust emission 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 section 611 of Public Law 92-574, the ``Noise Control Act of 1972.'' The FAA issues special conditions, as defined in 14 CFR 11.19, in accordance with Sec. 11.38, and they become part of the type- certification basis under Sec. 21.17(a)(2). Special conditions are initially applicable to the model for which they are issued. Should the type certificate for that model be amended later to include any other model that incorporates the same or similar novel or unusual design feature, the special conditions would also apply to the other model under Sec. 21.101. Novel or Unusual Design Features The HA-420 will incorporate the following novel or unusual design feature: The installation of Li-ion batteries. The current regulatory requirements for part 23 airplanes do not contain adequate requirements for the application of Li-ion batteries in airborne applications. This type of battery possesses certain failure, operational characteristics, and maintenance requirements that differ significantly from that of the nickel cadmium and lead acid rechargeable batteries currently approved in other normal, utility, acrobatic, and commuter category airplanes. Discussion The applicable parts 21 and 23 airworthiness regulations governing the installation of batteries in general aviation airplanes, including Sec. 23.1353, were derived from Civil Air Regulations (CAR 3) as part of the recodification that established 14 CFR part 23. The battery requirements, which are identified in Sec. 23.1353, were a rewording of the CAR requirements that did not add any substantive technical requirements. An increase in incidents involving battery fires and failures that accompanied the increased use of Nickel-Cadmium (Ni-Cad) batteries in aircraft resulted in rulemaking activities on the battery requirements for transport category airplanes. These regulations were incorporated into Sec. 23.1353(f) and (g), which apply only to Ni-Cad battery installations. The use of Li-ion batteries on the HA-420 airplane has prompted the FAA to review the adequacy of the existing battery regulations with respect to that chemistry. As the result of this review, the FAA has determined that the existing regulations do not adequately address several failure, operational, and maintenance characteristics of Li-ion batteries that could affect safety of the [[Page 57292]] battery installation of the HA-420 airplane electrical power supply. The introduction of Li-ion batteries into aircraft raises some concern about associated battery/cell monitoring systems and how these may affect utilization of an otherwise ``good'' battery as an energy source to the electrical system when monitoring components fail. Associated battery/cell monitoring systems (i.e., temperature, state of charge, etc.) should be evaluated/tested with respect the expected extremes in the aircraft operating environment. Li-ion batteries typically have different electrical impedance characteristics than lead-acid or Ni-Cad batteries. Honda Aircraft Company needs to evaluate other components of the aircraft electrical system with respect to these characteristics. At present, there is very limited experience regarding the use of Li-ion rechargeable batteries in applications involving commercial aviation. However, other users of this technology range from wireless telephone manufacturers to the electric vehicle industry and have noted significant safety issues regarding the use of these types of batteries, some of which are described in the following paragraphs: 1. Overcharging. In general, lithium batteries are significantly more susceptible to internal failures that can result in self- sustaining increases in temperature and pressure (i.e., thermal runaway) than their nickel-cadmium or lead-acid counterparts. This is especially true for overcharging, which causes heating and destabilization of the components of the cell, leading to the formation (by plating) of highly unstable metallic lithium. The metallic lithium can ignite, resulting in a self-sustaining fire or explosion. Finally, the severity of thermal runaway due to overcharging increases with increasing battery capacity due to the higher amount of electrolyte in large batteries. 2. Over-discharging. Discharge of some types of lithium battery cells beyond a certain voltage (typically 2.4 volts) can cause corrosion of the electrodes of the cell; resulting in loss of battery capacity that cannot be reversed by recharging. This loss of capacity may not be detected by the simple voltage measurements commonly available to flight crews as a means of checking battery status--a problem shared with nickel-cadmium batteries. 3. Flammability of Cell Components: Unlike nickel-cadmium and lead- acid batteries, some types of lithium batteries use liquid electrolytes that are flammable. The electrolyte can serve as a source of fuel for an external fire if there is a breach of the battery container. These safety issues experienced by users of lithium batteries raise concern about the use of these batteries in commercial aviation. The intent of the special condition is to establish appropriate airworthiness standards for lithium battery installations in the HA-420 and to ensure, as required by Sec. Sec. 23.1309 and 23.601, that these battery installations are not hazardous or unreliable. Additionally, RTCA, in a joint effort with the FAA and industry, has released RTCA/DO-311, Minimum Operational Performance Standards for Rechargeable Lithium Battery Systems, which gained much of its text directly from previous Li-ion special conditions. Honda Aircraft Company proposes to use DO-311 as the primary methodology for assuring the battery will perform its intended functions safely as installed in the HA-420 airplane and as the basis for test and qualification of the battery. This Special Condition incorporates applicable portions of DO- 311. Discussion Notice of proposed special conditions No. 23-15-03-SC for the Honda Aircraft Company, Model HA-420 airplane was published in the Federal Register on April 14, 2015 (80 FR 19889). No comments were received, and the special conditions are adopted as proposed. Applicability As discussed above, these special conditions are applicable to the HA-420. Should Honda Aircraft Company apply at a later date for a change to the type certificate to include another model incorporating the same novel or unusual design feature, the special conditions would apply to that model as well. Under standard practice, the effective date of final special conditions would be 30 days after the date of publication in the Federal Register; however, as the certification date for the Honda Aircraft Company HA-420 is imminent, the FAA finds that good cause exists to make these special conditions effective upon issuance. Conclusion This action affects only certain novel or unusual design features on one model of airplanes. It is not a rule of general applicability and it affects only the applicant who applied to the FAA for approval of these features on the airplane. List of Subjects in 14 CFR Part 23 Aircraft, Aviation safety, Signs and symbols. Citation The authority citation for these special conditions is as follows: Authority: 49 U.S.C. 106(g), 40113, 44701, 44702, 44704, 14 CFR 21.16 and 14 CFR 11.38 and 11.19. The Special Conditions 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 Honda Aircraft Company, HA-420 airplanes. 1. Lithium-Ion Battery Installation a. Safe cell temperatures and pressures must be maintained during any probable charging or discharging condition, or during any failure of the charging or battery monitoring system not shown to be extremely remote. The applicant must design Li-ion battery installation to preclude explosion or fire in the event of those failures. b. The applicant must design the Li-ion batteries to preclude the occurrence of self-sustaining, uncontrolled increases in temperature or pressure. c. No explosive or toxic gasses emitted by any Li-ion battery in normal operation or as the result of any failure of the battery charging or monitoring system, or battery installation not shown to be extremely remote, may accumulate in hazardous quantities within the airplane. d. Li-ion batteries that contain flammable fluids must comply with the flammable fluid fire protection requirements of Sec. 23.863(a) through (d). e. No corrosive fluids or gasses that may escape from any Li-ion battery may damage surrounding airplane structure or adjacent essential equipment. f. The applicant must provide provision for each installed Li-ion battery to prevent any hazardous effect on structure or essential systems that may be caused by the maximum amount of heat the battery can generate during a short circuit of the battery or of its individual cells. g. Li-ion battery installations must have-- (1) A system to control the charging rate of the battery automatically so as to prevent battery overheating or overcharging; or (2) A battery temperature sensing and over-temperature warning system with a means for automatically disconnecting the battery from its charging source in the event of an over-temperature condition; or [[Page 57293]] (3) A battery failure sensing and warning system with a means for automatically disconnecting the battery from its charging source in the event of battery failure. h. Any Li-ion battery installation whose function is required for safe operation of the airplane, must incorporate a monitoring and warning feature that will provide an indication to the appropriate flightcrew members whenever the capacity and State of Charge (SOC) of the batteries have fallen below levels considered acceptable for dispatch of the airplane. i. The Instructions for Continued Airworthiness (ICA) must contain recommended manufacturers maintenance and inspection requirements to ensure that batteries, including single cells, meet a safety function level essential to the aircraft's continued airworthiness. (1) The ICA must contain operating instructions and equipment limitations in an installation maintenance manual. (2) The ICA must contain installation procedures and limitations in a maintenance manual, sufficient to ensure that cells or batteries, when installed according to the installation procedures, still meet safety functional levels essential to the aircraft's continued airworthiness. The limitations must identify any unique aspects of the installation. (3) The ICA must contain corrective maintenance procedures to check battery capacity at manufacturers recommended inspection intervals. (4) The ICA must contain scheduled servicing information to replace batteries at manufacturers recommended replacement time. (5) The ICA must contain maintenance and inspection requirements to check visually for battery and/or charger degradation. j. Batteries in a rotating stock (spares) that have experienced degraded charge retention capability or other damage due to prolonged storage must be functionally checked at manufacturers recommended inspection intervals. k. The System Safety Assessment (SSA) process should address the software and complex hardware levels for the sensing, monitoring, and warning systems if these systems contain complex devices. The functional hazard assessment (FHA) for the system is required based on the intended functions described. The criticality of the specific functions will be determined by the safety assessment process for compliance with Sec. 23.1309. Advisory Circular 23-1309-1C contains acceptable means for accomplishing this requirement. For determining the failure condition, the criticality of a function will include the mitigating factors. The failure conditions must address the loss of function and improper operations. Issued in Kansas City, Missouri, on September 14, 2015. Mel Johnson, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. 2015-24164 Filed 9-22-15; 8:45 am] BILLING CODE 4910-13-P
![Federal Register / Vol. 80, No. 184 / Wednesday, September 23, 2015 / Rules and Regulations 57291
operation between normal inspections SUPPLEMENTARY INFORMATION: section 611 of Public Law 92–574, the
or overhauls. ‘‘Noise Control Act of 1972.’’
d. Functions incorporated into any Background
The FAA issues special conditions, as
electronic engine control that make it On October 11, 2006, Honda Aircraft defined in 14 CFR 11.19, in accordance
part of any equipment, systems, or Company applied for a type certificate with § 11.38, and they become part of
installation whose functions are beyond for their new Model HA–420. On the type-certification basis under
that of basic engine control, and which October 10, 2013, Honda Aircraft § 21.17(a)(2).
may also introduce system failures and Company requested an extension with Special conditions are initially
malfunctions, are not exempt from an effective application date of October applicable to the model for which they
§ 23.1309 and must be shown to meet 1, 2013. This extension changed the are issued. Should the type certificate
part 23 levels of safety as derived from type certification basis to amendment for that model be amended later to
§ 23.1309. Part 33 certification data, if 23–62. include any other model that
applicable, may be used to show The HA–420 is a four to five incorporates the same or similar novel
compliance with any part 23 passenger (depending on configuration), or unusual design feature, the special
requirements. If part 33 data is used to two crew, lightweight business jet with conditions would also apply to the other
substantiate compliance with part 23 a 43,000-foot service ceiling and a model under § 21.101.
requirements, then the applicant must maximum takeoff weight of 9963
be able to provide this data for showing pounds. The airplane is powered by two Novel or Unusual Design Features
or compliance. GE-Honda Aero Engines (GHAE) HF– The HA–420 will incorporate the
Issued in Kansas City, Missouri on 120 turbofan engines. following novel or unusual design
September 14, 2015. The current regulatory requirements feature: The installation of Li-ion
Mel Johnson, for part 23 airplanes do not contain batteries.
Acting Manager, Small Airplane Directorate, adequate requirements for the The current regulatory requirements
Aircraft Certification Service. application of Li-ion batteries in for part 23 airplanes do not contain
[FR Doc. 2015–24156 Filed 9–22–15; 8:45 am] airborne applications. This type of adequate requirements for the
BILLING CODE 4910–13–P battery possesses certain failure, application of Li-ion batteries in
operational characteristics, and airborne applications. This type of
maintenance requirements that differ battery possesses certain failure,
DEPARTMENT OF TRANSPORTATION significantly from that of the nickel operational characteristics, and
cadmium and lead acid rechargeable maintenance requirements that differ
Federal Aviation Administration batteries currently approved in other significantly from that of the nickel
normal, utility, acrobatic, and commuter cadmium and lead acid rechargeable
14 CFR Part 23 category airplanes. Therefore, the FAA batteries currently approved in other
[Docket No.FAA–2015–0721; Notice No. 23– is proposing this special condition to normal, utility, acrobatic, and commuter
269–SC] require that (1) all characteristics of the category airplanes.
rechargeable lithium batteries and their
Special Conditions: Honda Aircraft installation that could affect safe Discussion
Company, Model HA–420 HondaJet, operation of the HA–420 are addressed, The applicable parts 21 and 23
Lithium-ion Batteries and (2) appropriate Instructions for airworthiness regulations governing the
AGENCY: Federal Aviation Continued Airworthiness which include installation of batteries in general
Administration (FAA), DOT. maintenance requirements are aviation airplanes, including § 23.1353,
ACTION: Final special conditions. established to ensure the availability of were derived from Civil Air Regulations
electrical power from the batteries when (CAR 3) as part of the recodification that
SUMMARY: These special conditions are needed. established 14 CFR part 23. The battery
issued for the Honda Aircraft Company, requirements, which are identified in
Model HA–420 airplane. This airplane Type Certification Basis
§ 23.1353, were a rewording of the CAR
will have a novel or unusual design Under the provisions of 14 CFR 21.17, requirements that did not add any
feature associated with the installation Honda Aircraft Company must show substantive technical requirements. An
of lithium-ion (Li-ion) batteries. The that the HA–420 meets the applicable increase in incidents involving battery
applicable airworthiness regulations do provisions of part 23, as amended by fires and failures that accompanied the
not contain adequate or appropriate Amendments 23–1 through 23–62 increased use of Nickel-Cadmium (Ni-
safety standards for this design feature. thereto. Cad) batteries in aircraft resulted in
These special conditions contain the If the Administrator finds that the rulemaking activities on the battery
additional safety standards that the applicable airworthiness regulations requirements for transport category
Administrator considers necessary to (i.e., 14 CFR part 23) do not contain airplanes. These regulations were
establish a level of safety equivalent to adequate or appropriate safety standards incorporated into § 23.1353(f) and (g),
that established by the existing for the HA–420 because of a novel or which apply only to Ni-Cad battery
airworthiness standards. unusual design feature, special installations.
DATES: These special conditions are conditions are prescribed under the The use of Li-ion batteries on the HA–
effective September 23, 2015. provisions of § 21.16. 420 airplane has prompted the FAA to
FOR FURTHER INFORMATION CONTACT: Les In addition to the applicable review the adequacy of the existing
mstockstill on DSK4VPTVN1PROD with RULES
Lyne, Policies & Procedures Branch, airworthiness regulations and special battery regulations with respect to that
ACE–114, Federal Aviation conditions, the HA–420 must comply chemistry. As the result of this review,
Administration, Small Airplane with the fuel vent and exhaust emission the FAA has determined that the
Directorate, Aircraft Certification requirements of 14 CFR part 34 and the existing regulations do not adequately
Service, 901 Locust; Kansas City, noise certification requirements of 14 address several failure, operational, and
Missouri 64106; telephone (816) 329– CFR part 36, and the FAA must issue a maintenance characteristics of Li-ion
4171; facsimile (816) 329–4090. finding of regulatory adequacy under batteries that could affect safety of the
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![Federal Register / Vol. 80, No. 184 / Wednesday, September 23, 2015 / Rules and Regulations 57293
(3) A battery failure sensing and condition, the criticality of a function and Toxics Docket (OPPT Docket), EPA
warning system with a means for will include the mitigating factors. The Docket Center (EPA/DC), West William
automatically disconnecting the battery failure conditions must address the loss Jefferson Clinton Bldg., Rm. 3334, 1301
from its charging source in the event of of function and improper operations. Constitution Ave. NW., Washington,
battery failure. Issued in Kansas City, Missouri, on DC. The Public Reading Room is open
h. Any Li-ion battery installation September 14, 2015. from 8:30 a.m. to 4:30 p.m., Monday
whose function is required for safe Mel Johnson, through Friday, excluding legal
operation of the airplane, must holidays. The telephone number for the
Acting Manager, Small Airplane Directorate,
incorporate a monitoring and warning Public Reading Room is (202) 566–1744,
Aircraft Certification Service.
feature that will provide an indication and the telephone number for the OPPT
[FR Doc. 2015–24164 Filed 9–22–15; 8:45 am]
to the appropriate flightcrew members Docket is (202) 566–0280. Please review
BILLING CODE 4910–13–P
whenever the capacity and State of the visitor instructions and additional
Charge (SOC) of the batteries have fallen information about the docket available
below levels considered acceptable for at http://www.epa.gov/dockets.
dispatch of the airplane. ENVIRONMENTAL PROTECTION
FOR FURTHER INFORMATION CONTACT: For
i. The Instructions for Continued AGENCY
technical information contact: Sue
Airworthiness (ICA) must contain Slotnick, National Program Chemicals
recommended manufacturers 40 CFR Parts 9 and 721
Division (7404T), Office of Pollution
maintenance and inspection [EPA–HQ–OPPT–2011–0489; FRL 9927–44] Prevention and Toxics, Environmental
requirements to ensure that batteries, Protection Agency, 1200 Pennsylvania
RIN 2070–AJ88
including single cells, meet a safety Ave. NW., Washington, DC 20460–0001;
function level essential to the aircraft’s Significant New Use Rule for telephone number: (202) 566–1973;
continued airworthiness. Hexabromocyclododecane and email address: slotnick.sue@epa.gov.
(1) The ICA must contain operating 1,2,5,6,9,10-Hexabromocyclododecane For general information contact: The
instructions and equipment limitations TSCA-Hotline, ABVI-Goodwill, 422
in an installation maintenance manual. AGENCY: Environmental Protection South Clinton Ave., Rochester, NY
(2) The ICA must contain installation Agency (EPA). 14620; telephone number: (202) 554–
procedures and limitations in a ACTION: Final rule. 1404; email address: TSCA-Hotline@
maintenance manual, sufficient to epa.gov.
ensure that cells or batteries, when SUMMARY: EPA is promulgating a
installed according to the installation significant new use rule (SNUR) under SUPPLEMENTARY INFORMATION:
procedures, still meet safety functional the Toxic Substances Control Act I. Executive Summary
levels essential to the aircraft’s (TSCA) for two chemical substances
continued airworthiness. The collectively referred to as ‘‘HBCD.’’ This A. Does this action apply to me?
limitations must identify any unique action requires persons who intend to You may be potentially affected by
aspects of the installation. manufacture (including import) or this action if you manufacture (defined
(3) The ICA must contain corrective process hexabromocyclododecane or by statute to include import) or process
maintenance procedures to check 1,2,5,6,9,10-hexabromocyclododecane hexabromocyclododecane (Chemical
battery capacity at manufacturers (HBCD) for use in consumer textiles Abstracts Service Registry Number
recommended inspection intervals. (other than for use in motor vehicles) to (CASRN) 25637-99-4) or 1,2,5,6,9,10-
(4) The ICA must contain scheduled notify EPA at least 90 days before hexabromocyclododecane (CASRN
servicing information to replace commencing that activity. The required 3194-55-6) for use in consumer textiles
batteries at manufacturers notification will provide EPA with the other than for use in motor vehicles.
recommended replacement time. opportunity to evaluate the intended Throughout this final rule preamble, the
(5) The ICA must contain use and, if appropriate, to prohibit or term ‘‘HBCD’’ represents both chemical
maintenance and inspection limit that activity before it occurs. In substances, unless a specific CASRN is
requirements to check visually for this SNUR, the exemption for persons also noted. The North American
battery and/or charger degradation. importing or processing a chemical Industrial Classification System
j. Batteries in a rotating stock (spares) substance as part of an article does not (NAICS) codes that are identified in this
that have experienced degraded charge apply to importers and processors of unit are not intended to be exhaustive,
retention capability or other damage due HBCD as part of a textile article (e.g., as but rather provide a guide to help
to prolonged storage must be part of a bolt of cloth or part of an readers determine whether this rule
functionally checked at manufacturers upholstered chair). EPA is also making applies to them. Potentially affected
recommended inspection intervals. a technical amendment to the codified entities may include:
k. The System Safety Assessment list of control numbers for approved • Chemical Manufacturing (NAICS
(SSA) process should address the information collection activities so that code 325).
software and complex hardware levels it includes the control number assigned • Painting and Wall Covering
for the sensing, monitoring, and by the Office of Management and Contractors (NAICS code 238320).
warning systems if these systems Budget (OMB) to the information • Textile and Fabric Finishing (except
contain complex devices. The collection activities contained in this Broadwoven Fabric) Mills (NAICS code
functional hazard assessment (FHA) for rule. 313312).
the system is required based on the • Curtain and Drapery Mills (NAICS
mstockstill on DSK4VPTVN1PROD with RULES
intended functions described. The DATES: This final rule is effective code 314121).
criticality of the specific functions will November 23, 2015. • Other Household Textile Product
be determined by the safety assessment ADDRESSES: The docket for this action, Mills (NAICS code 314129).
process for compliance with § 23.1309. identified by docket identification (ID) • All Other Miscellaneous Textile
Advisory Circular 23–1309–1C contains number EPA–HQ–OPPT–2011–0489, is Product Mills (NAICS code 314999).
acceptable means for accomplishing this available at http://www.regulations.gov • Upholstered Household Furniture
requirement. For determining the failure or at the Office of Pollution Prevention Manufacturing (NAICS code 337121).
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Document Created: 2015-12-15 09:44:25
Document Modified: 2015-12-15 09:44:25
| Category | Regulatory Information | |
| Collection | Federal Register | |
| sudoc Class | AE 2.7: GS 4.107: AE 2.106: | |
| Publisher | Office of the Federal Register, National Archives and Records Administration | |
| Section | Rules and Regulations | |
| Action | Final special conditions. | |
| Dates | These special conditions are effective September 23, 2015. | |
| Contact | Les Lyne, Policies & Procedures Branch, ACE-114, Federal Aviation Administration, Small Airplane Directorate, Aircraft Certification Service, 901 Locust; Kansas City, Missouri 64106; telephone (816) 329-4171; facsimile (816) 329-4090. | |
| FR Citation | 80 FR 57291 | |
| CFR Associated | Aircraft; Aviation Safety and Signs and Symbols |
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