63300 Federal Register / Vol. 79, No. 205 / Thursday, October 23, 2014 / Rules and Regulations 

1. In the header of the document, 

‘‘Notice No.’’ should have been ‘‘Special 

Conditions No.’’ 

2. In one instance, one of the airplane 

model numbers was published as ‘‘BD– 

500–1A1’’ instead of ‘‘BD–500–1A11.’’ 

Correction 

In Final special conditions document 

(FR Doc. 2014–21789) published on 

September 12, 2014 (79 FR 54574), 

make the following corrections: 

1. On page 54574, second column in 

the header information, correct ‘‘Notice 

No.’’ to read ‘‘Special Conditions No.’’ 

2. On page 54575, third column, last 

line in the introductory text in the 

section titled, ‘‘The Special 

Conditions,’’ correct ‘‘BD–500–1A1’’ to 

read ‘‘BD–500–1A11.’’ 

Issued in Renton, Washington, on October 

16, 2014. 

Michael Kaszycki, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2014–25241 Filed 10–22–14; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 25 

[Docket No. FAA–2014–0666; Special 

Conditions No. 25–566–SC] 

Special Conditions: Bombardier 

Aerospace, Models BD–500–1A10 and 

BD–500–1A11 Series Airplanes; 

Isolation or Airplane Electronic System 

Security Protection From Unauthorized 

Internal Access 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final special conditions; 

corrections. 

SUMMARY: This document corrects two 

errors that appeared in Docket No. 

FAA–2014–0666, Special Conditions 

No. 25–566–SC, which was published in 

the Federal Register on September 12, 

2014 (79 FR 54572). There is an error in 

the header information and in one 

instance of one of the airplane model 

numbers in the publication. 

DATES: The effective date of this 

correction is October 23, 2014. 

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: On 

September 12, 2014, the Federal 

Register published document 

designated as ‘‘Docket No. FAA–2014– 

0666, Notice No. 25–566–SC,’’ (79 FR 

54572). The document issued special 

conditions pertaining to network 

security in the digital systems 

architecture, access from internal 

sources, on the BD–500–1A10 and BD– 

500–1A11 series airplanes. 

As published, the document 

contained two errors: 

1. In the header of the document, 

‘‘Notice No.’’ should have been ‘‘Special 

Conditions No.’’ 

2. In one instance, the airplane model 

number was published as ‘‘BD–500– 

1A1’’ instead of ‘‘BD–500–1A11.’’ 

Correction 

In Final special conditions document 

(FR Doc. 2014–21788), published on 

September 12, 2014 (79 FR 54572), 

make the following corrections: 

1. On page 54572, third column in the 

header information, correct ‘‘Notice 

No.’’ to read ‘‘Special Conditions No.’’ 

2. On page 54574, first column, last 

line in the introductory text of the 

section titled, ‘‘The Special 

Conditions,’’ correct ‘‘BD–500–1A1’’ to 

read ‘‘BD–500–1A11.’’ 

Issued in Renton, Washington, on October 

16, 2014. 

Michael Kaszycki, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2014–25240 Filed 10–22–14; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 25 

[Docket No. FAA–2014–0434; Special 

Conditions No. 25–544–SC] 

Special Conditions: Bombardier 

Aerospace, Models BD–500–1A10 and 

BD–500–1A11; Composite Wing and 

Fuel Tank Structure Post-Crash Fire 

Survivability 

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 novel or unusual design 

features when compared to the state of 

technology envisioned in the 

airworthiness standards for transport 

category airplanes. These design 

features are composite materials used in 

the construction of the fuel tank skin 

and structure, which may behave 

differently in a post-crash fire than 

traditional aluminum construction. 

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: This action is 

effective on November 24, 2014. 

FOR FURTHER INFORMATION CONTACT: 

Alan Sinclair, FAA, Airframe and Cabin 

Safety Branch, ANM–115 Transport 

Airplane Directorate, Aircraft 

Certification Service, 1601 Lind Avenue 

SW., Renton, Washington 98057–3356; 

telephone 425–227–2195; facsimile 

425–227–1232. 

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. 

Conventional airplanes with 

aluminum skin and structure provide a 

well-understood level of safety during 

post-crash fire scenarios with respect to 

fuel tanks. This is based on service 

history and extensive full-scale fire 

testing. The CSeries airplanes will not 

be fabricated primarily with aluminum 

for the fuel tank structure. Instead, they 

will be fabricated using predominantly 

composite structure and skin for the 

wings and fuel tanks. Composites may 

or may not have the equivalent 

capability of aluminum, and current 

regulations do not provide objective 

performance requirements for wing and 

fuel tank structure with respect to postcrash fire safety. Because the use of 

composite structure is novel and 

unusual with respect to the designs 

envisioned when the applicable 

regulations were promulgated, 

additional tests and analyses 

substantiation will be required to show 

that the CSeries airplanes will provide 

an acceptable level of safety with 

respect to the performance of the wings 

and fuel tanks during an external fuelfed fire. 


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