Federal Register / Vol. 79, No. 109 / Friday, June 6, 2014 / Rules and Regulations 32639 

Issued in Renton, Washington, April 22, 

2014. 

Jeffrey E. Duven, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2014–13242 Filed 6–5–14; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 25 

[Docket No. FAA–2013–1038; Special 

Conditions No. 25–549–SC] 

Special Conditions: Bombardier 

Aerospace, Models BD–500–1A10 and 

BD–500–1A11 Series Airplanes; Flight 

Envelope Protection: High-Speed 

Limiting 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final Special Conditions. 

SUMMARY: These special conditions are 

issued for the Bombardier Aerospace 

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 contains flyby-wire control laws, including 

envelope protections, for the overspeed 

protection and roll-limiting function. 

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 Date: July 7, 2014. 

FOR FURTHER INFORMATION CONTACT: Joe 

Jacobsen, FAA, Airplane and Flight 

Crew Interface Branch, ANM–111, 

Transport Airplane Directorate, Aircraft 

Certification Service, 1601 Lind Avenue 

SW., Renton, Washington 98057–3356; 

telephone 425–227–2011; facsimile 

425–227–1149. 

SUPPLEMENTARY INFORMATION:

Background 

On December 10, 2009, Bombardier 

Aerospace applied for a type certificate 

for their new Models BD–500–1A10 and 

BD–500–1A11 series airplanes (hereafter 

collectively referred to as ‘‘CSeries’’). 

The CSeries airplanes are swept-wing 

monoplanes with an aluminum alloy 

fuselage sized for 5-abreast seating. 

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. 

The longitudinal control law design of 

the Bombardier CSeries airplanes 

incorporates an overspeed protection 

system in the normal mode. This mode 

prevents the pilot from inadvertently or 

intentionally exceeding a speed 

approximately equivalent to the 

maximum speed for stability 

characteristics (VFC) or attaining 

demonstrated flight diving speed (VDF). 

Current Title 14, Code of Federal 

Regulations (14 CFR) part 25 standards 

did not envision a high-speed limiter 

that might preclude or modify flying 

qualities assessments in the overspeed 

region. 

Type Certification Basis 

Under the provisions of 14 CFR 21.17, 

Bombardier Aerospace 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 CSeries 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 under § 21.101. 

In addition to the applicable 

airworthiness regulations and special 

conditions, the CSeries 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 CSeries airplanes will incorporate 

the following novel or unusual design 

features: An electronic flight control 

system that contains fly-by-wire control 

laws, including envelope protections, 

for the overspeed protection and rolllimiting function. Current part 25 

requirements do not contain appropriate 

standards for high-speed protection 

systems. 

Discussion 

The overspeed protection 

functionality includes multifunction 

spoilers (MFS) that will automatically 

deploy as speed brakes once the 

airspeed exceeds a small tolerance 

above maximum operating limit speed 

(Vmo/Mmo); the MFS will retract 

automatically when speed is 

subsequently reduced. Special 

conditions are necessary in addition to 

the requirements of § 25.143 for the 

operation of the high-speed protection. 

The general intent is that the overspeed 

protection does not impede normal 

maneuvering and speed control, and 

that the overspeed protection does not 

restrict or prevent emergency 

maneuvering. 

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. 25–13–38–SC for the Bombardier 

CSeries airplanes was published in the 

Federal Register on December 11, 2013 

(78 FR 75284). We received one 

comment in favor of the proposed 

special conditions as written. 

Applicability 

As discussed above, these special 

conditions are applicable to the Models 

BD–500–1A10 and BD–500–1A11 series 

airplanes. Should Bombardier 

Aerospace 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. 

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 

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32640 Federal Register / Vol. 79, No. 109 / Friday, June 6, 2014 / Rules and Regulations 

certification basis for the Bombardier 

Aerospace Models BD–500–1A10 and 

BD–500–1A11 series airplanes. 

Flight Envelope Protection—HighSpeed Limiting 

■ 1. In addition to § 25.143, the 

following requirements apply: 

Operation of the high-speed limiter 

during all routine and descent 

procedure flight must not impede 

normal attainment of speeds up to 

overspeed warning. 

Issued in Renton, Washington, on April 22, 

2014. 

Jeffrey E. Duven, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2014–13243 Filed 6–5–14; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 25 

[Docket No. FAA–2014–0301; Special 

Conditions No. 25–550–SC] 

Special Conditions: The Boeing 

Company, Models 737–700, –700C, 

–800, –900ER, –7, –8, and –9 Series 

Airplanes; Airplane Electronic Systems 

Security Protection From Unauthorized 

External Access 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final Special Condition; 

Request for Comments. 

SUMMARY: These special conditions are 

issued for the Boeing Company Models 

737–700, –700C, –800, –900ER, –7, –8, 

and –9 series airplanes. These airplanes 

will have novel or unusual design 

features associated with the architecture 

and connectivity capabilities of the 

airplanes’ computer systems and 

networks, which may allow access to or 

by external computer systems and 

networks and may result in security 

vulnerabilities to the airplanes’ systems. 

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 June 6, 2014. We 

must receive your comments by July 21, 

2014. 

ADDRESSES: Send comments identified 

by docket number FAA–2014–0301 

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: 

Varun Khanna, FAA, Airplane and 

Flight Crew Interface Branch, ANM– 

111, Transport Airplane Directorate, 

Aircraft Certification Service, 1601 Lind 

Avenue SW., Renton, Washington 

98057–3356; telephone 425–227–1298; 

facsimile 425–227–1149. 

SUPPLEMENTARY INFORMATION: The FAA 

has determined that notice of, and 

opportunity for prior public comment 

on, these special conditions is 

impracticable because these procedures 

would significantly delay issuance of 

the design approval and thus delivery of 

the affected aircraft. 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 publication in 

the Federal Register. 

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 January 27, 2012, the Boeing 

Company applied for an amendment to 

Type Certificate No. A16WE to include 

new minor models, 737–7, –8, and –9. 

The Models 737–7, –8, and –9, which 

are derivatives of the 737–700, –800, 

–900ER currently approved under Type 

Certificate No. A16WE, are passenger 

series airplanes designed to 

substantially reduce fuel burn and 

community noise. In addition, the 

design will include a new CFM LEAP– 

1B engine with a 68.4-inch diameter fan, 

8-inch longer nose gear to accommodate 

the larger engine, a relofted tailcone 

(which requires the elevator to be 

trimmed and the elevator tab to be 

relocated outboard to accommodate the 

new contours), new horizontal stabilizer 

strakelets, a retractable auxiliary power 

unit inlet door, fly-by-wire spoilers, 

strengthened flight deck bulkhead, and 

a new winglet design. 

Type Certification Basis 

Under the provisions of Title 14, Code 

of Federal Regulations (14 CFR) 21.101, 

The Boeing Company must show that 

the Models 737–700, –700C, –800, 

–900ER, –7, –8, and –9 series airplanes 

meet the applicable provisions of the 

regulations incorporated by reference in 

Type Certificate No. A16WE or the 

applicable regulations in effect on the 

date of application for the change to the 

type certificate. The regulations 

incorporated by reference in the type 

certificate are commonly referred to as 

the ‘‘original type certification basis.’’ In 

addition, the certification basis includes 

certain special conditions, exemptions, 

or later amended sections of the 

applicable part that are not relevant to 

these special conditions. 

If the Administrator finds that the 

applicable airworthiness regulations 

(i.e., 14 CFR part 25) do not contain 

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