74348 Federal Register / Vol. 81, No. 207 / Wednesday, October 26, 2016 / Proposed Rules 

design feature, or should any other 

model already included on the same 

type certificate be modified to 

incorporate the same novel or unusual 

design feature, these special conditions 

would also apply to the other model 

under § 21.101. 

In addition to the applicable 

airworthiness regulations and special 

conditions, the Model BD–700–2A12 

and BD–700–2A13 airplanes must 

comply with the fuel-vent and exhaustemission requirements of 14 CFR part 

34, and the noise-certification 

requirements of 14 CFR part 36. 

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 

§ 21.101. 

Novel or Unusual Design Features 

Bombardier Inc. Model BD–700–2A12 

and BD–700–2A13 airplanes will 

incorporate the following novel or 

unusual design feature: The fuselage 

will be fabricated using aluminumlithium materials instead of 

conventional aluminum. 

Discussion 

The certification basis for the 

Bombardier Model BD–700–2A12 and 

BD–700–2A11 airplanes does not 

include the burn-through requirements 

defined in § 25.856(b) because both 

airplane models have a passenger 

capacity of fewer than 20. The Model 

BD–700–2A12 and BD–700–2A13 

airplanes are introducing a new material 

other than what has traditionally been 

shown to be survivable from a ‘‘toxic’’ 

standpoint. The applicant must ensure 

that the material being installed on an 

airplane does not introduce a new 

hazard that would reduce the 

survivability of the passengers during a 

post-crash situation, or that would 

provide levels of toxic fumes that would 

be lethal or incapacitating, thus 

preventing evacuation of the airplane in 

a crash scenario. 

In accordance with § 21.16, fuselage 

structure that includes aluminumlithium construction is an unusual 

design feature for large, transportcategory airplanes certificated under 14 

CFR part 25. 

Regulations applicable to burn 

requirements, including §§ 25.853 and 

25.856(a), remain valid for these 

airplanes, but do not reflect the threat 

generated from potentially toxic levels 

of gases produced from aluminumlithium materials. 

These proposed 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. 

Applicability 

As discussed above, these special 

conditions are applicable to the 

Bombardier Model BD–700–2A12 and 

BD–700–2A13 airplanes. Should 

Bombardier apply at a later date for a 

change to the type certificate to include 

another model incorporating the same 

novel or unusual design feature, these 

special conditions would apply to the 

other model as well. 

Conclusion 

This action affects only certain novel 

or unusual design features on 

Bombardier Model BD–700–2A12 and 

BD–700–2A13 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, the Federal Aviation 

Administration (FAA) proposes the 

following special conditions as part of 

the type certification basis for 

Bombardier Model BD–700–2A12 and 

BD–700–2A13 airplanes. 

The Model BD–700–2A12 and BD– 

700–2A13 airplanes must show that 

toxic levels of gases produced from the 

aluminum-lithium material, when 

exposed to a post-crash fire threat, are 

in no way an additional threat to the 

passengers, including, but not limited 

to, their ability to evacuate, when 

compared to traditional aluminum 

airplane materials. 

Issued in Renton, Washington, on October 

14, 2016. 

Michael Kaszycki, 

Assistant Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2016–25808 Filed 10–25–16; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 25 

[Docket No. FAA–2016–4158; Notice No. 25– 

16–06–SC] 

Special Conditions: Bombardier Inc. 

Model BD–700–2A12 and BD–700– 

2A13 Airplanes; Fuselage In-Flight Fire 

Safety and Flammability Resistance of 

Aluminum-Lithium Material 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed special 

conditions. 

SUMMARY: This action proposes special 

conditions for the Bombardier Inc. 

(Bombardier) Model BD–700–2A12 and 

BD–700–2A13 airplanes. These 

airplanes will have a novel or unusual 

design feature when compared to the 

state of technology envisioned in the 

airworthiness standards for transportcategory airplanes. This design feature 

is a fuselage fabricated using aluminumlithium materials instead of 

conventional aluminum. The applicable 

airworthiness regulations do not contain 

adequate or appropriate fire-safety 

standards for this design feature. These 

proposed special conditions contain the 

additional fire-safety standards that the 

Administrator considers necessary to 

establish a level of safety equivalent to 

that established by the existing 

airworthiness standards. 

DATES: Send your comments on or 

before December 12, 2016. 

ADDRESSES: Send comments identified 

by docket number FAA–2016–4158 

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 


Lhorne on DSK30JT082PROD with PROPOSALS
Federal Register / Vol. 81, No. 207 / Wednesday, October 26, 2016 / Proposed Rules 74349 

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 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: 

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 

425–227–1320. 

SUPPLEMENTARY INFORMATION: 

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 May 30, 2012, Bombardier applied 

for an amendment to type certificate no. 

T00003NY to include the new Model 

BD–700–2A12 and BD–700–2A13 

airplanes. These airplanes are 

derivatives of the Model BD–700 series 

of airplanes and are marketed as the 

Bombardier Global 7000 (Model BD– 

700–2A12) and Global 8000 (Model BD– 

700–2A13). These airplanes are twinengine, transport-category, executiveinterior business jets. The maximum 

passenger capacity is 19 and the 

maximum takeoff weights are 106,250 

lb. (Model BD–700–2A12) and 104,800 

lb. (Model BD–700–2A13). 

Type Certification Basis 

Under the provisions of Title 14, Code 

of Federal Regulations (14 CFR) 21.101, 

Bombardier must show that the Model 

BD–700–2A12 and BD–700–2A13 

airplanes meet the applicable provisions 

of the regulations listed in Type 

Certificate no. T00003NY, or the 

applicable regulations in effect on the 

date of application for the change, 

except for earlier amendments as agreed 

upon by the FAA. 

In addition, the certification basis 

includes other regulations, special 

conditions, and exemptions that are not 

relevant to these proposed special 

conditions. Type Certificate no. 

T00003NY will be updated to include a 

complete description of the certification 

basis for these airplane models. 

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 BD–700–2A12 and BD– 

700–2A13 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 novel or unusual 

design feature, or should any other 

model already included on the same 

type certificate be modified to 

incorporate the same novel or unusual 

design feature, these special conditions 

would also apply to the other model 

under § 21.101. 

In addition to the applicable 

airworthiness regulations and special 

conditions, the Model BD–700–2A12 

and BD–700–2A13 airplanes must 

comply with the fuel-vent and exhaustemission requirements of 14 CFR part 

34, and the noise-certification 

requirements of 14 CFR part 36. 

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 

§ 21.101. 

Novel or Unusual Design Features 

Bombardier Inc. Model BD–700–2A12 

and BD–700–2A13 airplanes will 

incorporate the following novel or 

unusual design feature: The fuselage 

will be fabricated using aluminumlithium materials instead of 

conventional aluminum. 

Discussion 

The Bombardier Model BD–700–2A12 

and BD–700–2A13 airplanes will be 

fabricated using aluminum-lithium 

materials. The performance of airplanes 

consisting of a conventional aluminum 

fuselage, in an in-flight, inaccessible-fire 

scenario, is understood based on service 

history, and extensive intermediate- and 

large-scale fire testing. Experience has 

shown that eliminating fire propagation 

of the interior and insulation materials 

tends to increase survivability because 

other aspects of in-flight fire safety (e.g., 

toxic-gas emission and smoke 

obscuration) are typically byproducts of 

the propagating fire. The fuselage itself 

does not contribute to in-flight fire 

propagation. This may not be the case 

for a fuselage fabricated from 

aluminum-lithium materials. Therefore, 

a special condition is necessary so that 

the Model BD–700–2A12 and BD–700– 

2A13 airplanes provide protection 

against in-flight fires propagating along 

the surface of the fuselage. 

In the past, fatal in-flight fires have 

originated in inaccessible areas of 

airplanes where thermal or acoustic 

insulation was located adjacent to the 

airplane’s aluminum fuselage skin. 

Research revealed that this area has 

been the path for flame propagation and 

fire growth. The FAA determined, in 

five incidents in the 1990s, that 

unexpected flame spread along thermal 

and acoustic insulation-film covering 

material, raising concerns about the fire 

performance of this material. In all 

cases, the ignition source was relatively 

modest and, in most cases, was 

electrical in origin (e.g., electrical short 

circuit, arcing caused by chafed wiring, 

ruptured ballast case, etc.). 

In 1996, the FAA Technical Center 

began a program to develop new fire-test 

criteria for insulation films directly 

relating to in-flight fire resistance. This 

development program resulted in a new 

test method—the radiant-panel test— 

and also resulted in test criteria 

specifically established for improving 

the in-flight fire ignition and flame 

propagation of thermal and acoustic 

insulation materials based on actual, onboard fire scenarios. 

The FAA determined that a test 

similar to the test for the measurement 

of insulation burnthrough resistance (14 

CFR part 25, Appendix F, Part VII, ‘‘Test 

Method to Determine the Burnthrough 

Resistance of Thermal/Acoustic 

Insulation Materials’’) could be used to 

assess the flammability characteristics 

of the proposed fuselage aluminumlithium material. The only change to the 

test is the size of the sample and the 

sample holder, to accommodate panels 

of the fuselage material. 

Bombardier must use the test method 

contained in Part VII of Appendix F, 

Test Method, to determine the 

burnthrough resistance of thermalacoustic insulation materials, with the 

slight changes to the sample size and 

sample holder, as described in these 


Lhorne on DSK30JT082PROD with PROPOSALS
74350 Federal Register / Vol. 81, No. 207 / Wednesday, October 26, 2016 / Proposed Rules 

special conditions, to show compliance 

with applicable requirements. 

These proposed 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. 

Applicability 

As discussed above, these special 

conditions are applicable to Bombardier 

Model BD–700–2A12 and BD–700– 

2A13 airplanes. Should Bombardier 

apply at a later date for a change to the 

type certificate to include another 

model incorporating the same novel or 

unusual design feature, these special 

conditions would apply to the other 

model as well. 

Conclusion 

This action affects only certain novel 

or unusual design features on 

Bombardier Model BD–700–2A12 and 

BD–700–2A13 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 Proposed Special Conditions 

Accordingly, the Federal Aviation 

Administration (FAA) proposes the 

following special conditions as part of 

the type certification basis for 

Bombardier Model BD–700–2A12 and 

BD–700–2A13 airplanes. 

1. Bombardier Inc. must demonstrate 

that the aluminum-lithium material has 

equal or better flammability-resistance 

characteristics than the aluminum-alloy 

sheet material typically used as skin 

material on similar airplanes. 

2. The test set-up and methodology 

must be in accordance with the tests 

described in 14 CFR part 25, Appendix 

F, Part VII, except for the following. 

a. Each test sample must consist of a 

flat test specimen. A set of three 

samples of aluminum-lithium sheet 

material must be tested. The size of each 

sample must be 16 inches wide by 24 

inches long by 0.063 inch thick. 

b. The test samples must be installed 

into a steel-sheet subframe with outside 

dimensions of 18 inches by 32 inches. 

The subframe must have a 14.5-inch by 

22.5-inch opening cut into it. The tests 

samples must be mounted onto the 

subframe using 0.250–20 UNC threaded 

bolts. 

c. Test specimens must be 

conditioned at 70 °F ± 5 °F, and 55% 

± 5% humidity, for at least 24 hours 

before testing. 

3. The aluminum-lithium material 

must not ignite during any of the tests. 

Issued in Renton, Washington, on October 

14, 2016. 

Michael Kaszycki, 

Assistant Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2016–25809 Filed 10–25–16; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 25 

[Docket No. FAA–2016–8247; Notice No. 25– 

16–08–SC] 

Special Conditions: Aerocon 

Engineering Company, Boeing Model 

777–200 Airplane; Access Hatch 

Installed Between the Cabin and the 

Class C Cargo Compartment To Allow 

In-Flight Access to the Cargo 

Compartment 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed special 

conditions. 

SUMMARY: This action proposes special 

conditions for the Boeing Model 777– 

200 airplane. This airplane, as modified 

by Aerocon Engineering Company 

(Aerocon), will have a novel or unusual 

design feature when compared to the 

state of technology envisioned in the 

airworthiness standards for transportcategory airplanes. This design feature 

is an access hatch, installed between the 

cabin and the Class C cargo 

compartment, to allow in-flight access 

to the Class C cargo compartment. The 

applicable airworthiness regulations do 

not contain adequate or appropriate 

safety standards for this design feature. 

These proposed 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: Send your comments on or 

before December 12, 2016. 

ADDRESSES: Send comments identified 

by docket number FAA–2016–8247 

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 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: John 

Shelden, FAA, Airframe and Cabin 

Safety Branch, ANM–115, Transport 

Airplane Directorate, Aircraft 

Certification Service, 1601 Lind Avenue 

SW., Renton, Washington 98057–3356; 

telephone 425–227–2785; facsimile 

425–227–1320. 

SUPPLEMENTARY INFORMATION: 

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 June 26, 2015, Aerocon applied for 

a supplemental type certificate to install 

an access hatch between the cabin and 


Lhorne on DSK30JT082PROD with PROPOSALS