This section of the FEDERAL REGISTER

contains regulatory documents having general

applicability and legal effect, most of which

are keyed to and codified in the Code of

Federal Regulations, which is published under

50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by

the Superintendent of Documents. Prices of

new books are listed in the first FEDERAL

REGISTER issue of each week.

Rules and Regulations Federal Register

67291 

Vol. 78, No. 218 

Tuesday, November 12, 2013 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 25 

[Docket No. FAA–2013–0843; Special 

Conditions No. 25–500–SC] 

Special Conditions: Bombardier Inc., 

Models BD–500–1A10 and BD–500– 

1A11 Series Airplanes; Design Roll 

Maneuver Condition 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final Special Conditions; 

Request for Comments. 

SUMMARY: These special conditions are 

issued for the Bombardier Inc. Models 

BD–500–1A10 and BD–500–1A11 series 

airplanes. These airplanes will have a 

novel or unusual design feature 

associated with an electronic flight 

control system that provides roll control 

of the airplanes through pilot inputs to 

the flight computers. 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: The effective date of these 

special conditions is November 12, 

2013. We must receive your comments 

by December 27, 2013. 

ADDRESSES: Send comments identified 

by docket number FAA–2013–0843 

using any of the following methods: 

• Federal eRegulations Portal: Go to 

http://www.regulations.gov/ and follow 

the online instructions for sending your 

comments electronically. 

• Mail: Send comments to Docket 

Operations, M–30, U.S. Department of 

Transportation (DOT), 1200 New Jersey 

Avenue SE., Room W12–140, West 

Building Ground Floor, Washington, DC 

20590–0001. 

• Hand Delivery or Courier: Take 

comments to Docket Operations in 

Room W12–140 of the West Building 

Ground Floor at 1200 New Jersey 

Avenue SE., Washington, DC, between 9 

a.m. and 5 p.m., Monday through 

Friday, except federal holidays. 

• Fax: Fax comments to Docket 

Operations at 202–493–2251. 

Privacy: The FAA will post all 

comments it receives, without change, 

to http://www.regulations.gov/, 

including any personal information the 

commenter provides. Using the search 

function of the docket Web site, anyone 

can find and read the electronic form of 

all comments received into any FAA 

docket, including the name of the 

individual sending the comment (or 

signing the comment for an association, 

business, labor union, etc.). DOT’s 

complete Privacy Act Statement can be 

found in the Federal Register published 

on April 11, 2000 (65 FR 19477– 

19478), as well as at http:// 

DocketsInfo.dot.gov/. 

Docket: Background documents or 

comments received may be read at 

http://www.regulations.gov/ at any time. 

Follow the online instructions for 

accessing the docket or go to the Docket 

Operations in Room W12–140 of the 

West Building Ground Floor at 1200 

New Jersey Avenue SE., Washington, 

DC, between 9 a.m. and 5 p.m., Monday 

through Friday, except federal holidays. 

FOR FURTHER INFORMATION CONTACT: 

Mark Freisthler, FAA, Airframe and 

Cabin Safety Branch, Transport 

Airplane Directorate, Aircraft 

Certification Service, 1601 Lind Avenue 

SW., Renton, Washington 98057–3356; 

telephone 425–227–1119; facsimile 

425–227–1232. 

SUPPLEMENTARY INFORMATION: The FAA 

has determined that notice of, and 

opportunity for prior public comment 

on, these special conditions is 

unnecessary because 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. 

Comments Invited 

We invite interested people to take 

part in this rulemaking by sending 

written comments, data, or views. The 

most helpful comments reference a 

specific portion of the special 

conditions, explain the reason for any 

recommended change, and include 

supporting data. 

We will consider all comments we 

receive by the closing date for 

comments. We may change these special 

conditions based on the comments we 

receive. 

Background 

On December 10, 2009, Bombardier 

Inc. applied for a type certificate for 

their new Models BD–500–1A10 and 

BD–500–1A11 series airplanes (hereafter 

collectively referred to as ‘‘C-series’’). 

The C-series airplanes are swept-wing 

monoplanes with a pressurized cabin. 

They share an identical supplier base 

and significant common design 

elements. The fuselage is an aluminum 

alloy material, blended double-bubble 

fuselage design, sized for nominal 5- 

abreast seating. Each airplane’s 

powerplant consists of two under-wing 

Pratt and Whitney PW1524G ultra-high 

bypass, geared turbofan engines. Flight 

controls are fly-by-wire flight with two 

passive/uncoupled side sticks. Avionics 

include five landscape primary cockpit 

displays. The dimensions of the 

airplanes encompass a wingspan of 115 

feet; a height of 37.75 feet; and a length 

of 114.75 feet for the Model BD–500– 

1A10 and 127 feet for the Model BD– 

500–1A11. Passenger capacity is 

designated as 110 for the Model BD– 

500–1A10 and 125 for the Model BD– 

500–1A11. Maximum takeoff weight is 

131,000 pounds for the Model BD–500– 

1A10 and 144,000 pounds for the Model 

BD–500–1A11. Maximum takeoff thrust 

is 21,000 pounds for the Model BD– 

500–1A10 and 23,300 pounds for the 

Model BD–500–1A11. Range is 3,394 

miles (5,463 kilometres) for both models 

of airplanes. Maximum operating 

altitude is 41,000 feet for both models 

of airplanes. 

The current design roll maneuver 

requirement in Title 14, Code of Federal 

Regulations (14 CFR) part 25 is 

inadequate for addressing an aircraft 

with electronic flight controls that affect 

maneuvering. These special conditions 

will adjust the current roll maneuver 

requirement, § 25.349, to take into 

account the effects of an electronic flight 

control system. 

mstockstill on DSK4VPTVN1PROD with RULES

67292 Federal Register / Vol. 78, No. 218 / Tuesday, November 12, 2013 / Rules and Regulations 

Type Certification Basis 

Under the provisions of 14 CFR 21.17, 

Bombardier Inc. must show that the Cseries airplanes meet the applicable 

provisions of part 25 as amended by 

Amendments 25–1 through 25–129 

thereto. 

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 C-series airplanes because of a 

novel or unusual design feature, special 

conditions are prescribed under the 

provisions of § 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. 

In addition to the applicable 

airworthiness regulations and special 

conditions, the C-series 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 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, in accordance 

with § 11.38, and they become part of 

the type certification basis under 

§ 21.17(a)(2). 

Novel or Unusual Design Features 

The C-series airplanes will 

incorporate the following novel or 

unusual design features: 

The airplanes are equipped with an 

electronic flight control system that 

provides control through pilot inputs to 

the flight computer. Current part 25 

airworthiness regulations account for 

control laws for which aileron 

deflection is proportional to control 

stick deflection. They do not address 

any nonlinearities or other effects on 

aileron actuation that may be caused by 

electronic flight controls. Since this type 

of system may affect flight loads, and 

therefore the structural capability of the 

airplanes, special conditions are needed 

to address these effects. 

Discussion 

These special conditions differ from 

current requirements in that they 

require that the roll maneuver be based 

on defined actuation of the cockpit roll 

control as opposed to defined 

deflections of the aileron itself. Also, the 

special conditions require an additional 

load condition at VA, in which the 

cockpit roll control is returned to 

neutral following the initial roll input. 

These special conditions differ from 

similar special conditions applied on 

previous programs. These special 

conditions are limited to the roll axis 

only, whereas previous special 

conditions also included the pitch and 

yaw axes. Special conditions are no 

longer needed for the pitch or yaw axes, 

because Amendment 25–91 takes into 

account the effects of an electronic flight 

control system in those axes (§ 25.331 

for pitch and § 25.351 for yaw). 

Applicability 

As discussed above, these special 

conditions are applicable to the Models 

BD–500–1A10 and BD–500–1A11 series 

airplanes. Should Bombardier Inc. 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. 

Conclusion 

This action affects only certain novel 

or unusual design features on two 

model series of airplanes. It is not a rule 

of general applicability. 

The substance of these special 

conditions 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. Therefore, because a 

delay would significantly affect the 

certification of the airplanes, the FAA 

has determined that prior public notice 

and comment are unnecessary and 

impracticable, and good cause exists for 

adopting these special conditions upon 

publication in the Federal Register. 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. 

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 the Bombardier 

Inc. Models BD–500–1A10 and BD– 

500–1A11 series airplanes. 

Design Roll Maneuver Condition 

In lieu of compliance to § 25.349(a): 

The following conditions, speeds, and 

cockpit roll control motions (except as 

the motions may be limited by pilot 

effort) must be considered in 

combination with an airplane load 

factor of zero and of two-thirds of the 

positive maneuvering factor used in 

design. In determining the resulting 

control surface deflections, the torsional 

flexibility of the wing must be 

considered in accordance with 

§ 25.301(b): 

1. Conditions corresponding to steady 

rolling velocities must be investigated. 

In addition, conditions corresponding to 

maximum angular acceleration must be 

investigated for airplanes with engines 

or other weight concentrations outboard 

of the fuselage. For the angular 

acceleration conditions, zero rolling 

velocity may be assumed in the absence 

of a rational time history investigation 

of the maneuver. 

2. At VA, sudden movement of the 

cockpit roll control up to the limit is 

assumed. The position of the cockpit 

roll control must be maintained until a 

steady roll rate is achieved and then 

must be returned suddenly to the 

neutral position. 

3. At VC, the cockpit roll control must 

be moved suddenly and maintained so 

as to achieve a roll rate not less than 

that obtained in paragraph (2). 

4. At VD, the cockpit roll control must 

be moved suddenly and maintained so 

as to achieve a roll rate not less than one 

third of that obtained in paragraph (2). 

Issued in Renton, Washington, on 

September 19, 2013. 

Ross Landes, 

Acting Manager,Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2013–26913 Filed 11–8–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2013–0173; Airspace 

Docket No. 13–ASW–6] 

Amendment of Class E Airspace; 

Carlsbad, NM 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: This action amends Class E 

airspace at Carlsbad, NM. Controlled 

mstockstill on DSK4VPTVN1PROD with RULES