56472 Federal Register / Vol. 81, No. 162 / Monday, August 22, 2016 / Rules and Regulations 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 25 

[Docket No. FAA–2016–4137; Special 

Conditions No. 25–631–SC] 

Special Conditions: Bombardier 

Aerospace Inc. Model BD–700–2A12 

and BD–700–2A13 Airplanes; 

Automatic Speed Protection for Design 

Dive Speed 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final special conditions; request 

for comments. 

SUMMARY: These special conditions are 

issued for the Bombardier Aerospace 

Inc. (Bombardier) Model BD–700–2A12 

and BD–700–2A13 airplanes. These 

airplanes will have a novel or unusual 

feature when compared to the state of 

technology envisioned in the 

airworthiness standards for transportcategory airplanes. This design feature 

is associated with a reduced margin 

between design cruising speed, VC/MC, 

and design diving speed, VD/MD, based 

on the incorporation of a high-speedprotection system that limits nose-down 

pilot authority at speeds above VD/MD. 

The applicable airworthiness 

regulations do not contain adequate or 

appropriate safety standards for these 

design features. 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: This action is effective on 

Bombardier on August 22, 2016. We 

must receive your comments by October 

6, 2016. 

ADDRESSES: Send comments identified 

by docket number FAA–2016–4137 

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: 

Mark Freisthler, FAA, Airframe and 

Cabin Safety Branch, ANM–115, 

Transport Airplane Directorate, Aircraft 

Certification Service, 1601 Lind Avenue 

SW., Renton, Washington, 98057–3356; 

telephone 425–227–1119; facsimile 

425–227–1232. 

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 on or before 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 currently approved under 

type certificate no. T00003NY, and are 

marketed as the Bombardier Global 7000 

(Model BD–700–2A12) and Global 8000 

(Model BD–700–2A13). These airplanes 

are ultra-long-range, executive-interior 

business jets. 

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. 

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 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 

The Bombardier Model BD–700–2A12 

and BD–700–2A13 airplanes will have a 

novel or unusual design feature 

associated with a high-speed-protection 

system that limits nose-down pilot 

authority at speeds above VD/MD. 

Discussion 

Bombardier’s high-speed-protection 

system limits nose-down pilot authority 

at speeds above VC/MC, and prevents 

the airplane from actually performing 

the maneuver required under 

§ 25.335(b)(1). 

Section 25.335(b)(1) is an analytical 

envelope condition that was originally 

adopted in Part 4b of the Civil Air 

Regulations to provide an acceptable 

speed margin between design cruise 


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Federal Register / Vol. 81, No. 162 / Monday, August 22, 2016 / Rules and Regulations 56473 

speed and design dive speed. Flutterclearance design speeds and airframe 

design loads are impacted by the design 

dive speed. While the initial condition 

for the upset specified in the rule is 1g 

level flight, protection is afforded for 

other inadvertent overspeed conditions 

as well. Section 25.335(b)(1) is intended 

as a conservative enveloping condition 

for potential overspeed conditions, 

including non-symmetric ones. To 

establish that potential overspeed 

conditions are enveloped, Bombardier 

must demonstrate that any reduced 

speed margin, based on the high-speedprotection system, will not be exceeded 

in inadvertent or gust-induced upsets 

resulting in initiation of the dive from 

non-symmetric attitudes; or that the 

airplane is protected, by the flightcontrol laws, from getting into nonsymmetric upset conditions. 

Bombardier must conduct a 

demonstration that includes a 

comprehensive set of conditions, as 

described in these special conditions. 

These special conditions are 

necessary to address Bombardier’s 

proposed high-speed-protection system. 

These special conditions identify 

various symmetric and non-symmetric 

maneuvers that will ensure that an 

appropriate design dive speed is 

established. Symmetric (pitching) 

maneuvers are specified in § 25.331, 

‘‘Symmetric maneuvering conditions.’’ 

Non-symmetric maneuvers are specified 

in § 25.349, ‘‘Rolling conditions,’’ and in 

§ 25.351, ‘‘Yaw maneuver conditions.’’ 

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. 

Applicability 

As discussed above, these special 

conditions are applicable to the 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 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, the FAA 

has determined that prior public notice 

and comment are unnecessary, 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 Bombardier Model 

BD–700–2A12 and BD–700–2A13 

airplanes. 

1. In lieu of compliance with 

§ 25.335(b)(1), if the flight-control 

system includes functions that act 

automatically to initiate recovery before 

the end of the 20-second period 

specified in § 25.335(b)(1), VD/MD must 

be determined from the greater of the 

speeds resulting from special conditions 

1(a) and 1(b), below. The speed increase 

occurring in these maneuvers may be 

calculated if reliable or conservative 

aerodynamic data are used. 

a. From an initial condition of 

stabilized flight at VC/MC, the airplane 

is upset so as to take up a new flight 

path 7.5 degrees below the initial path. 

Control application, up to full authority, 

is made to try to maintain this new 

flight path. Twenty seconds after 

initiating the upset, manual recovery is 

made at a load factor of 1.5g (0.5 

acceleration increment), or such greater 

load factor that is automatically applied 

by the system with the pilot’s pitch 

control neutral. Power, as specified in 

§ 25.175(b)(1)(iv), is assumed until 

recovery is initiated, at which time 

power reduction and the use of pilotcontrolled drag devices may be used. 

b. From a speed below VC/MC, with 

power to maintain stabilized level flight 

at this speed, the airplane is upset so as 

to accelerate through VC/MC at a flight 

path 15 degrees below the initial path 

(or at the steepest nose-down attitude 

that the system will permit with full 

control authority if less than 15 

degrees). The pilot’s controls may be in 

the neutral position after reaching VC/ 

MC and before recovery is initiated. 

Recovery may be initiated three seconds 

after operation of the high-speed 

warning system by application of a load 

of 1.5g (0.5g acceleration increment), or 

such greater load factor that is 

automatically applied by the system 

with the pilot’s pitch control neutral. 

Power may be reduced simultaneously. 

All other means of decelerating the 

airplane, the use of which is authorized 

up to the highest speed reached in the 

maneuver, may be used. The interval 

between successive pilot actions must 

not be less than one second. 

2. It must also be demonstrated that 

the speed margin, established as above, 

will not be exceeded in inadvertent or 

gust-induced upsets resulting in 

initiation of the dive from nonsymmetric attitudes, unless the airplane 

is protected, by the flight-control laws, 

from getting into non-symmetric upset 

conditions. The upset maneuvers 

described in Advisory Circular 25–7C, 

‘‘Flight Test Guide for Certification of 

Transport Category Airplanes,’’ section 

8, paragraph 32, sub-paragraphs c(3)(a) 

and (b), may be used to comply with 

this requirement. 

3. The probability of any failure of the 

high-speed-protection system that 

would result in an airspeed exceeding 

those determined by special conditions 

1 and 2, above, must be less than 10¥5

per flight hour. 

4. Failures of the system must be 

annunciated to the pilots. Airplane 

flight-manual instructions must be 

provided that reduce the maximum 

operating speeds, VMO/MMO. With the 

system failed, the operating speed must 

be reduced to a value that maintains a 

speed margin between VMO/MMO and 

VD/MD, and that is consistent with 

showing compliance with § 25.335(b) 

without the benefit of the high-speedprotection system. 

5. Dispatch of the airplane with the 

high-speed-protection system 

inoperative could be allowed under an 

approved minimum equipment list that 

would require airplane flight-manual 

instructions to indicate reduced 

maximum operating speeds, as 

described in special condition 4, above. 

In addition, the flight-deck display of 

the reduced operating speeds, as well as 

the overspeed warning for exceeding 

those speeds, must be equivalent to that 

of the normal airplane with the highspeed-protection system operative. Also, 

it must be shown that no additional 

hazards are introduced with the highspeed-protection system inoperative. 


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56474 Federal Register / Vol. 81, No. 162 / Monday, August 22, 2016 / Rules and Regulations 

Issued in Renton, Washington, on August 

11, 2016. 

Paul Bernado, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2016–19993 Filed 8–19–16; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 25 

[Docket No. FAA–2015–6359; Special 

Conditions No. 25–633–SC] 

Special Conditions: Bombardier Inc. 

Model BD–700–2A12 and BD–700– 

2A13 Airplanes; Airplane ElectronicSystem Security Protection From 

Authorized Internal Access 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final special conditions; request 

for comments. 

SUMMARY: These special conditions are 

issued for the Bombardier Inc. 

(Bombardier) Model BD–700–2A12 and 

BD–700–2A13 airplanes. These 

airplanes will have novel or unusual 

design features, specifically, digital 

systems architecture composed of 

several connected data networks that 

will have the capability to allow 

connectivity of the passenger-service 

computer systems to the airplane 

critical systems and data networks. 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: This action is effective on 

Bombardier on August 22, 2016. We 

must receive your comments by October 

6, 2016. 

ADDRESSES: Send comments identified 

by docket number FAA–2015–6359 

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: 

Varun Khanna, FAA, Airplane and 

Flight Crew Interface, 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: 

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 on or before 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 currently approved under 

type certificate no. T00003NY, and are 

marketed as the Bombardier Global 7000 

(Model BD–700–2A12) and Global 8000 

(Model BD–700–2A13). These airplanes 

are ultra-long-range, executive-interior 

business jets. 

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. 

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 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 

The Model BD–700–2A12 and BD– 

700–2A13 airplanes will incorporate the 

following novel or unusual design 

feature: 

Digital systems architecture composed 

of several connected data networks. 

This network architecture and 

configuration may be used for, or 

interfaced with, a diverse set of 

functions, including: 

• Flight-safety-related control, 

communication, and navigation systems 

(airplane-control domain); 


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