Special Conditions: Airbus Model A350-900 Series, Limit Pilot Force Because of Side Stick Controller, 33673-33674 [2014-13666]

Download as PDF Federal Register / Vol. 79, No. 113 / Thursday, June 12, 2014 / Rules and Regulations system in the shoulder belt does not have to be considered. 10. It must be shown that the airbag system in the shoulder belt will not release hazardous quantities of gas or particulate matter into the cabin. 11. The airbag system in the shoulderbelt installation must be protected from the effects of fire such that no hazard to occupants will result. 12. A means must be available for a crewmember to verify the integrity of the airbag system in the shoulder-belt activation system prior to each flight, or it must be demonstrated to reliably operate between inspection intervals. The FAA considers that the loss of the airbag-system deployment function alone (i.e., independent of the conditional event that requires the airbag-system deployment) is a majorfailure condition. 13. The inflatable material may not have an average burn rate of greater than 2.5 inches per minute when tested, using the horizontal flammability test defined in part 25, appendix F, part I, paragraph (b)(5). 14. The airbag system in the shoulder belt, once deployed, must not adversely affect the emergency-lighting system (i.e., block floor proximity lights to the extent that the lights no longer meet their intended function). Issued in Renton, Washington, on May 12, 2014. Jeffrey E. Duven, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2014–13663 Filed 6–11–14; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 25 [Docket No. FAA–2013–0896; Special Conditions No. 25–529–SC] Special Conditions: Airbus Model A350–900 Series, Limit Pilot Force Because of Side Stick Controller Federal Aviation Administration (FAA), DOT. ACTION: Final special conditions. AGENCY: These special conditions are issued for Airbus Model A350–900 series airplanes. These airplanes will have a novel or unusual design feature associated with side stick controllers which require limited pilot force because they are operated by only one hand. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this rmajette on DSK2TPTVN1PROD with RULES SUMMARY: VerDate Mar<15>2010 14:18 Jun 11, 2014 Jkt 232001 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: Effective July 14, 2014. FOR FURTHER INFORMATION CONTACT: Todd Martin, FAA, Airframe and Cabin Safety Branch, ANM–115, Transport Airplane Directorate, Aircraft Certification Service, 1601 Lind Avenue SW., Renton, Washington, 98057–3356; telephone (425) 227–1178; facsimile (425) 227–1320. SUPPLEMENTARY INFORMATION: Background On August 25, 2008, Airbus applied for a type certificate for their new Model A350–900 series airplane. Later, Airbus requested and the FAA approved an extension to the application for FAA type certification to June 28, 2009. The Model A350–900 series airplane has a conventional layout with twin wingmounted Rolls-Royce Trent XWB engines. It features a twin aisle 9-abreast economy class layout, and accommodates side-by-side placement of LD–3 containers in the cargo compartment. The basic Model A350– 900 series configuration will accommodate 315 passengers in a standard two-class arrangement. The design cruise speed is Mach 0.85 with a Maximum Take-Off Weight of 602,000 lbs. The Airbus Model A350–900 series airplane is equipped with two side stick controllers instead of the conventional control columns and wheels. This kind of controller is designed for only onehand operation. The requirement of Title 14, Code of Federal Regulations (14 CFR) 25.397(c), which defines limit pilot forces and torques for conventional wheel or stick controls, is not adequate for a side stick controller. Special conditions are necessary to specify the appropriate loading conditions for this kind of controller. Type Certification Basis Under Title 14, Code of Federal Regulations (14 CFR) 21.17, Airbus must show that the Model A350–900 series meets the applicable provisions of 14 CFR part 25, as amended by Amendments 25–1 through 25–129. 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 Model A350–900 series because of a novel or unusual design feature, special conditions are prescribed under § 21.16. PO 00000 Frm 00027 Fmt 4700 Sfmt 4700 33673 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 § 21.101. In addition to the applicable airworthiness regulations and special conditions, the Model A350–900 series 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. The FAA must issue a finding of regulatory adequacy under § 611 of Public Law 92– 574, the ‘‘Noise Control Act of 1972.’’ The FAA issues special conditions, as defined in 14 CFR 11.19, under § 11.38, and they become part of the typecertification basis under § 21.17(a)(2). Novel or Unusual Design Features The Airbus Model A350–900 series airplane will incorporate the following novel or unusual design feature: a side stick controller for only one-hand operation by wrist and not by arms. Discussion Special conditions for Airbus side stick controllers have been developed and applied during previous Airbus certification programs. These special conditions are also appropriate for the Model A350–900 series side stick controller. 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. Discussion of Comments Notice of proposed special conditions No. 25–13–27–SC for Airbus Model A350–900 series airplanes was published in the Federal Register on December 17, 2013 (78 FR 76248). No comments were received, and the special conditions are adopted as proposed. Applicability As discussed above, these special conditions apply to Airbus Model A350–900 series airplanes. Should Airbus apply later 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. E:\FR\FM\12JNR1.SGM 12JNR1 33674 Federal Register / Vol. 79, No. 113 / Thursday, June 12, 2014 / Rules and Regulations Conclusion DEPARTMENT OF TRANSPORTATION This action affects only certain novel or unusual design features on the Airbus Model A350–900 series airplanes. It is not a rule of general applicability. Federal Aviation Administration List of Subjects in 14 CFR Part 25 14 CFR Part 25 [Docket No. FAA–2013–0890; Special Conditions No. 25–524–SC] Aircraft, Aviation safety, Reporting and recordkeeping requirements. The authority citation for these special conditions is as follows: Special Conditions: Airbus Model A350–900 Series Airplane; Ground Pivoting Loads AGENCY: Authority: 49 U.S.C. 106(g), 40113, 44701, 44702, 44704. 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 Airbus Model A350–900 series airplanes in lieu of § 25.397(c), which are identical to A320, A340, and A380 special conditions on the same subject: For the Airbus Model A350–900 series airplane equipped with stick controls designed for forces to be applied by one wrist and not arms, the limit pilot forces are as follows: 1. For all components between and including the handle and its control stops. Roll Nose up 200 lbf. ....... Nose left 100 lbf. 2. For all other components of the side stick control assembly, but excluding the internal components of the electrical sensor assemblies, to avoid damage as a result of an in-flight jam. Pitch Roll Nose up 125 lbf. ....... Nose down 125 lbf. ... Nose left 50 lbf. Nose right 50 lbf. Issued in Renton, Washington, on: April 22, 2014. Jeffrey E. Duven, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2014–13666 Filed 6–11–14; 8:45 am] rmajette on DSK2TPTVN1PROD with RULES BILLING CODE 4910–13–P VerDate Mar<15>2010 14:18 Jun 11, 2014 These special conditions are issued for Airbus Model A350–900 Series airplanes. These airplanes will have a novel or unusual design feature(s) associated with a braking system that affects the airplane’s pivoting behavior. 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: Effective July 14, 2014. FOR FURTHER INFORMATION CONTACT: Todd Martin, FAA, Airframe/Cabin Safety, ANM–115, Transport Airplane Directorate, Aircraft Certification Service, 1601 Lind Avenue SW., Renton, Washington, 98057–3356; telephone (425) 227–1178; facsimile (425) 227–1320. SUPPLEMENTARY INFORMATION: SUMMARY: The Special Conditions Pitch Federal Aviation Administration (FAA), DOT. ACTION: Final special conditions. Jkt 232001 Background On August 25, 2008, Airbus applied for a type certificate for their new Model A350–900 series airplane. Later, Airbus requested and the FAA approved an extension to the application for FAA type certification to June 28, 2009. The Model A350–900 series airplane has a conventional layout with twin wingmounted Rolls-Royce Trent engines. It features a twin aisle 9-abreast economy class layout, and accommodates side-byside placement of LD–3 containers in the cargo compartment. The basic Model A350–900 series configuration will accommodate 315 passengers in a standard two-class arrangement. The design cruise speed is Mach 0.85 with a Maximum Take-Off Weight of 602,000 lbs. Airbus proposes the Model A350– 900 series airplane to be certified for extended operations (ETOPS) beyond 180 minutes at entry into service for up to a 420-minute maximum diversion time. The Airbus Model A350–900 series airplane is equipped with a braking PO 00000 Frm 00028 Fmt 4700 Sfmt 4700 system that affects the airplane’s pivoting behavior. During pivoting the braking system inhibits braking on some wheels. Title 14 Code of Federal Regulations (14 CFR) 25.503 and European Aviation Safety Agency (EASA) Certification Specification (CS) section 25.503, each specify limit loads due to pivoting, however, system effects are not taken into account. Type Certification Basis Under Title 14, Code of Federal Regulations (14 CFR) 21.17, Airbus must show that the Model A350–900 series meets the applicable provisions of 14 CFR part 25, as amended by Amendments 25–1 through 25–129. 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 Model A350–900 series because of a novel or unusual design feature, special conditions are prescribed under § 21.16. 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 § 21.101. In addition to the applicable airworthiness regulations and special conditions, the Model A350–900 series 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 § 611 of Public Law 92– 574, the ‘‘Noise Control Act of 1972.’’ The FAA issues special conditions, as defined in 14 CFR 11.19, under § 11.38, and they become part of the typecertification basis under § 21.17(a)(2). Novel or Unusual Design Features The Airbus Model A350–900 series airplane will incorporate the following novel or unusual design features: a braking system that affects the airplane’s pivoting behavior. Discussion Within the Aviation Rulemaking Advisory Committee, the Loads and Dynamics Harmonization Working Group developed criteria for determining pivoting loads. The group recommended, for airplanes with more than two main landing gear units, a rational pivoting maneuver that takes into account the effects of the braking system and tire characteristics, in lieu of the current requirement. Although the E:\FR\FM\12JNR1.SGM 12JNR1

Agencies

[Federal Register Volume 79, Number 113 (Thursday, June 12, 2014)]
[Rules and Regulations]
[Pages 33673-33674]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2014-13666]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 25

[Docket No. FAA-2013-0896; Special Conditions No. 25-529-SC]


Special Conditions: Airbus Model A350-900 Series, Limit Pilot 
Force Because of Side Stick Controller

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final special conditions.

-----------------------------------------------------------------------

SUMMARY: These special conditions are issued for Airbus Model A350-900 
series airplanes. These airplanes will have a novel or unusual design 
feature associated with side stick controllers which require limited 
pilot force because they are operated by only one hand. 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: Effective July 14, 2014.

FOR FURTHER INFORMATION CONTACT: Todd Martin, FAA, Airframe and Cabin 
Safety Branch, ANM-115, Transport Airplane Directorate, Aircraft 
Certification Service, 1601 Lind Avenue SW., Renton, Washington, 98057-
3356; telephone (425) 227-1178; facsimile (425) 227-1320.

SUPPLEMENTARY INFORMATION: 

Background

    On August 25, 2008, Airbus applied for a type certificate for their 
new Model A350-900 series airplane. Later, Airbus requested and the FAA 
approved an extension to the application for FAA type certification to 
June 28, 2009. The Model A350-900 series airplane has a conventional 
layout with twin wing-mounted Rolls-Royce Trent XWB engines. It 
features a twin aisle 9-abreast economy class layout, and accommodates 
side-by-side placement of LD-3 containers in the cargo compartment. The 
basic Model A350-900 series configuration will accommodate 315 
passengers in a standard two-class arrangement. The design cruise speed 
is Mach 0.85 with a Maximum Take-Off Weight of 602,000 lbs.
    The Airbus Model A350-900 series airplane is equipped with two side 
stick controllers instead of the conventional control columns and 
wheels. This kind of controller is designed for only one-hand 
operation. The requirement of Title 14, Code of Federal Regulations (14 
CFR) 25.397(c), which defines limit pilot forces and torques for 
conventional wheel or stick controls, is not adequate for a side stick 
controller. Special conditions are necessary to specify the appropriate 
loading conditions for this kind of controller.

Type Certification Basis

    Under Title 14, Code of Federal Regulations (14 CFR) 21.17, Airbus 
must show that the Model A350-900 series meets the applicable 
provisions of 14 CFR part 25, as amended by Amendments 25-1 through 25-
129.
    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 Model A350-900 series because of a 
novel or unusual design feature, special conditions are prescribed 
under Sec.  21.16.
    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.
    In addition to the applicable airworthiness regulations and special 
conditions, the Model A350-900 series 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. The FAA must issue a 
finding of regulatory adequacy under Sec.  611 of Public Law 92-574, 
the ``Noise Control Act of 1972.''
    The FAA issues special conditions, as defined in 14 CFR 11.19, 
under Sec.  11.38, and they become part of the type-certification basis 
under Sec.  21.17(a)(2).

Novel or Unusual Design Features

    The Airbus Model A350-900 series airplane will incorporate the 
following novel or unusual design feature: a side stick controller for 
only one-hand operation by wrist and not by arms.

Discussion

    Special conditions for Airbus side stick controllers have been 
developed and applied during previous Airbus certification programs. 
These special conditions are also appropriate for the Model A350-900 
series side stick controller.
    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.

Discussion of Comments

    Notice of proposed special conditions No. 25-13-27-SC for Airbus 
Model A350-900 series airplanes was published in the Federal Register 
on December 17, 2013 (78 FR 76248). No comments were received, and the 
special conditions are adopted as proposed.

Applicability

    As discussed above, these special conditions apply to Airbus Model 
A350-900 series airplanes. Should Airbus apply later 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.

[[Page 33674]]

Conclusion

    This action affects only certain novel or unusual design features 
on the Airbus Model A350-900 series airplanes. It is not a rule of 
general applicability.

List of Subjects in 14 CFR Part 25

    Aircraft, Aviation safety, Reporting and recordkeeping 
requirements.

    The authority citation for these special conditions is as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701, 44702, 44704.

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 Airbus Model A350-900 series airplanes 
in lieu of Sec.  25.397(c), which are identical to A320, A340, and A380 
special conditions on the same subject:
    For the Airbus Model A350-900 series airplane equipped with stick 
controls designed for forces to be applied by one wrist and not arms, 
the limit pilot forces are as follows:
    1. For all components between and including the handle and its 
control stops.

------------------------------------------------------------------------
                   Pitch                                Roll
------------------------------------------------------------------------
Nose up 200 lbf...........................  Nose left 100 lbf.
------------------------------------------------------------------------

    2. For all other components of the side stick control assembly, but 
excluding the internal components of the electrical sensor assemblies, 
to avoid damage as a result of an in-flight jam.

------------------------------------------------------------------------
                   Pitch                                Roll
------------------------------------------------------------------------
Nose up 125 lbf...........................  Nose left 50 lbf.
Nose down 125 lbf.........................  Nose right 50 lbf.
------------------------------------------------------------------------


    Issued in Renton, Washington, on: April 22, 2014.
Jeffrey E. Duven,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2014-13666 Filed 6-11-14; 8:45 am]
BILLING CODE 4910-13-P
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