Federal Register / Vol. 82, No. 183 / Friday, September 22, 2017 / Rules and Regulations 44305 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2017–0494; Product 

Identifier 2016–NM–126–AD; Amendment 

39–19047; AD 2017–19–17] 

RIN 2120–AA64 

Airworthiness Directives; Dassault 

Aviation Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are superseding 

Airworthiness Directive (AD) 2016–17– 

02, which applied to certain Dassault 

Aviation Model FALCON 900EX and 

FALCON 2000EX airplanes. AD 2016– 

17–02 required revising the airplane 

flight manual (AFM) to include 

procedures to follow when an airplane 

is operating in icing conditions. AD 

2016–17–02 also provided optional 

actions after which the AFM revision 

may be removed from the AFM. Since 

we issued AD 2016–17–02, we have 

determined additional actions are 

necessary to address the identified 

unsafe condition. This new AD retains 

the requirement of AD 2016–17–02, and 

also requires a detailed inspection of the 

wing anti-ice system ducting (anti-ice 

pipes) for the presence of a diaphragm, 

and replacement of ducting or reidentification of the ducting part 

marking. We are issuing this AD to 

address the unsafe condition on these 

products. 

DATES: This AD is effective October 27, 

2017. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of October 27, 2017. 

ADDRESSES: For service information 

identified in this final rule, contact 

Dassault Falcon Jet Corporation, 

Teterboro Airport, P.O. Box 2000, South 

Hackensack, NJ 07606; telephone 201– 

440–6700; Internet http://www.dassault

falcon.com. You may view this 

referenced service information at the 

FAA, Transport Standards Branch, 1601 

Lind Avenue SW., Renton, WA. For 

information on the availability of this 

material at the FAA, call 425–227–1221. 

It is also available on the Internet at 

http://www.regulations.gov by searching 

for and locating Docket No. FAA–2017– 

0494. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2017– 

0494; or in person at the Docket 

Management Facility between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The AD docket 

contains this AD, the regulatory 

evaluation, any comments received, and 

other information. The address for the 

Docket Office (telephone 800–647–5527) 

is Docket Management Facility, U.S. 

Department of Transportation, Docket 

Operations, M–30, West Building 

Ground Floor, Room W12–140, 1200 

New Jersey Avenue SE., Washington, 

DC 20590. 

FOR FURTHER INFORMATION CONTACT: Tom 

Rodriguez, Aerospace Engineer, 

International Section, Transport 

Standards Branch, FAA, 1601 Lind 

Avenue SW., Renton, WA 98057–3356; 

telephone 425–227–1137; fax 425–227– 

1149. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2016–17–02, 

Amendment 39–18615 (81 FR 55366, 

August 19, 2016) (‘‘AD 2016–17–02’’). 

AD 2016–17–02 applied to certain 

Dassault Aviation Model FALCON 

900EX and FALCON 2000EX airplanes. 

The NPRM published in the Federal 

Register on May 30, 2017 (82 FR 24606). 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA Emergency 

Airworthiness Directive 2016–0130–E, 

dated July 5, 2016 (referred to after this 

as the Mandatory Continuing 

Airworthiness Information, or ‘‘the 

MCAI’’), to correct an unsafe condition 

for certain Dassault Aviation Model 

FALCON 900EX and FALCON 2000EX 

airplanes. The MCAI states: 

A design review of in production 

aeroplanes identified a manufacturing 

deficiency of some wing anti-ice system 

ducting. 

This condition, if not detected and 

corrected, could lead to an undetected 

reduced performance of the wing anti-ice 

system, with potential ice accretion and 

ingestion, possibly resulting in degraded 

engine power and degraded handling 

characteristics. 

The Falcon 900EX EASY and Falcon * * * 

[2000EX] Aircraft Flight Manuals (AFM) 

contain a normal procedure 4–200–05A, 

‘‘Operations in Icing Conditions’’, addressing 

minimum fan speed rotation (N1) during 

combined operation of wing anti-ice and 

engine anti-ice systems. The subsequent 

investigation demonstrated that the wing 

anti-ice system performance for aeroplanes 

equipped with ducting affected by the 

manufacturing deficiency can be restored 

increasing N1 value. In addition, Dassault 

Aviation published Service Bulletin (SB) 

F900EX–464 (for Falcon 900EX aeroplanes) 

and SB F2000EX–393 (for Falcon 2000EX 

aeroplanes), providing instructions for wing 

anti-ice system ducting inspection. 

For the reasons described above, this 

[EASA] AD requires an AFM amendment and 

a one-time [detailed] inspection of the wing 

anti-ice system ducting [and, as applicable, a 

check of the part number,] and, depending on 

findings, re-identification or replacement of 

the wing anti-ice system ducting. 

You may examine the MCAI in the 

AD docket on the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2017– 

0494. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

received no comments on the NPRM or 

on the determination of the cost to the 

public. 

Conclusion 

We reviewed the available data and 

determined that air safety and the 

public interest require adopting this AD 

as proposed except for minor editorial 

changes. We have determined that these 

minor changes: 

• Are consistent with the intent that 

was proposed in the NPRM for 

correcting the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM. 

Related Service Information Under 1 

CFR Part 51 

Dassault has issued Service Bulletin 

F900EX–464, dated June 20, 2016; and 

Service Bulletin F2000EX–393, dated 

June 20, 2016. This service information 

describes procedures for an inspection 

of the wing anti-ice system ducting and 

re-identification or replacement of the 

wing anti-ice system ducting. These 

documents are distinct since they apply 

to different airplane models. This 

service information is reasonably 

available because the interested parties 

have access to it through their normal 

course of business or by the means 

identified in the ADDRESSES section. 

Costs of Compliance 

We estimate that this AD affects 52 

airplanes of U.S. registry. 

The action required by AD 2016–17– 

02, and retained in this AD, takes about 

1 work-hour per product, at an average 

labor rate of $85 per work-hour. Based 

on these figures, the estimated cost of 

44306 Federal Register / Vol. 82, No. 183 / Friday, September 22, 2017 / Rules and Regulations 

the action that is required by AD 2016– 

17–02 is $85 per product. 

We also estimate that it will take 

about 4 work-hours per product to 

comply with the basic requirements of 

this AD. The average labor rate is $85 

per work-hour. Based on these figures, 

we estimate the cost of this AD on U.S. 

operators to be $17,680, or $340 per 

product. 

In addition, we estimate that any 

necessary follow-on actions will take 

about 19 work-hours and require parts 

costing $24,000, for a cost of $25,615 

per product. We have no way of 

determining the number of aircraft that 

might need these actions. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. ‘‘Subtitle VII: 

Aviation Programs,’’ describes in more 

detail the scope of the Agency’s 

authority. 

We are issuing this rulemaking under 

the authority described in ‘‘Subtitle VII, 

Part A, Subpart III, Section 44701: 

General requirements.’’ Under that 

section, Congress charges the FAA with 

promoting safe flight of civil aircraft in 

air commerce by prescribing regulations 

for practices, methods, and procedures 

the Administrator finds necessary for 

safety in air commerce. This regulation 

is within the scope of that authority 

because it addresses an unsafe condition 

that is likely to exist or develop on 

products identified in this rulemaking 

action. 

This AD is issued in accordance with 

authority delegated by the Executive 

Director, Aircraft Certification Service, 

as authorized by FAA Order 8000.51C. 

In accordance with that order, issuance 

of ADs is normally a function of the 

Compliance and Airworthiness 

Division, but during this transition 

period, the Executive Director has 

delegated the authority to issue ADs 

applicable to transport category 

airplanes to the Director of the System 

Oversight Division. 

Regulatory Findings 

We determined that this AD will not 

have federalism implications under 

Executive Order 13132. This AD will 

not have a substantial direct effect on 

the States, on the relationship between 

the national government and the States, 

or on the distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

1. Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866; 

2. Is not a ‘‘significant rule’’ under the 

DOT Regulatory Policies and Procedures 

(44 FR 11034, February 26, 1979); 

3. Will not affect intrastate aviation in 

Alaska; and 

4. Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

Adoption of the Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 14 CFR part 39 as 

follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by 

removing Airworthiness Directive (AD) 

2016–17–02, Amendment 39–18615 (81 

FR 55366, August 19, 2016), and adding 

the following new AD: 

2017–19–17 Dassault Aviation:

Amendment 39–19047; Docket No. 

FAA–2017–0494; Product Identifier 

2016–NM–126–AD. 

(a) Effective Date 

This AD is effective October 27, 2017. 

(b) Affected ADs 

This AD replaces AD 2016–17–02, 

Amendment 39–18615 (81 FR 55366, August 

19, 2016) (‘‘AD 2016–17–02’’). 

(c) Applicability 

This AD applies to the Dassault Aviation 

airplanes identified in paragraphs (c)(1) and 

(c)(2) of this AD, certificated in any category. 

(1) Model FALCON 900EX airplanes, serial 

numbers (S/Ns) 270 through 291 inclusive 

and 294. 

(2) Model FALCON 2000EX airplanes, 

S/Ns 263 through 305 inclusive, 307 through 

313 inclusive, 315, 320, and 701 through 734 

inclusive. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 30, Ice and Rain Protection. 

(e) Reason 

This AD was prompted by a design review 

of in-production airplanes that identified a 

deficiency in certain wing anti-ice system 

ducting. We are issuing this AD to detect and 

correct a deficiency in the wing anti-ice 

system ducting, which could result in 

reduced performance of the wing anti-ice 

system with potential ice accretion and 

ingestion, and could result in degraded 

engine power and degraded handling 

characteristics. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Retained Revision to the Airplane Flight 

Manual (AFM), With No Changes 

This paragraph restates the requirements of 

paragraph (g) of AD 2016–17–02, with no 

changes. 

(1) For Model FALCON 900EX airplanes on 

which the actions specified in Dassault 

Service Bulletin F900EX–464 have not been 

accomplished: Within 10 flight cycles after 

September 6, 2016 (the effective date of AD 

2016–17–02), revise Section 4–200–05A, 

‘‘OPERATION IN ICING CONDITIONS,’’ of 

the Model Falcon 900EX AFM to include the 

information in figure 1 to paragraph (g)(1) of 

this AD, and thereafter operate the airplane 

accordingly. The AFM revision may be done 

by inserting a copy of this AD into the AFM. 

BILLING CODE 4910–13–P 

Federal Register / Vol. 82, No. 183 / Friday, September 22, 2017 / Rules and Regulations 44307 

(2) For Model FALCON 2000EX airplanes 

on which the actions specified in Dassault 

Service Bulletin F2000EX–393 have not been 

accomplished: Within 10 flight cycles after 

September 6, 2016 (the effective date of AD 

2016–17–02), revise Section 4–200–05A, 

‘‘OPERATION IN ICING CONDITIONS,’’ of 

the Model Falcon 2000EX AFM to include 

the information in figure 2 to paragraph (g)(2) 

of this AD, and thereafter operate the 

airplane accordingly. The AFM revision may 

be done by inserting a copy of this AD into 

the AFM. 


ER22SE17.000</GPH>

Figure 1 to Paragraph (g)(l) of this AD- Operation in Icing Conditions 

Wings Anti-Ice System Operation 

During in-flight operation of a wings anti-ice system (WINGS ANTI-ICE) maintain the N1 

of all engines equal to or more than the values defined in Table 1, as applicable to 

atmospheric condition. 

Table 1 

New Minimum N1 values required during in-flight operation of a wings anti-ice system 

Th ree operative engmes: 

TAT -30 to -20 to -10 to 0 to 

-20 oc -10°C 0°C + 10 oc 

Above 20,000 ft 79% 75% 71% 66% 

From 20,000 ft to 76% 73% 66% 59% 10,000 ft 

Below 10,000 ft 68% 66% 61% 58% 

These new values include 3% increase compared to former values (4-200-05A page 112). 

T wo operative engmes: 

TAT -30 to -20 to -10 to 0 to 

-20 oc -10°C 0°C +10°C 

Above 20,000 ft 86% 82% 78% 73% 

From 20,000 ft to 83% 80% 73% 66% 10,000 ft 

Below 10,000 ft 75% 73% 68% 65% 

These new values include 3% increase compared to former values (4-200-05A page 112). 

TAT- Total Air Temperature 

Note 1: Maintaining the N1 above the minimum anti-ice N1 on all engines may lead to 

exceedance of approach speed. Early approach or landing configuration of an airplane and/or 

application of airbrakes may be used to control the airspeed. In approach and landing and for 

a limited duration up to three minutes, selection ofN1 speeds below the minimum anti-ice 

N1 speed is authorized. In this case it is necessary to disengage the autothrottle. 

Effectivity: F900EX (LX variant) SIN 270 to 291, 294 without Dassault Aviation SB 

F900EX-464. 
44308 Federal Register / Vol. 82, No. 183 / Friday, September 22, 2017 / Rules and Regulations 

BILLING CODE 4910–13–C 

(h) New Actions: Inspection, Part 

Replacement, Part Re-Identification 

Within 9 months after the effective date of 

this AD: Do a detailed inspection of the wing 

anti-ice system ducting (anti-ice pipes) for 

the presence of a diaphragm, and do all 

applicable actions specified in paragraph 

(h)(1) or (h)(2) of this AD, in accordance with 

the Accomplishment Instructions of Dassault 

Service Bulletin F900EX–464, dated June 20, 

2016; or Service Bulletin F2000EX–393, 

dated June 20, 2016; as applicable. After the 

applicable actions specified in paragraph 

(h)(1) or (h)(2) of this AD have been 

completed, the AFM revision required by 


ER22SE17.001</GPH>

Figure 2 to Paragraph (g)(2) of this AD - Operation in Icing Conditions 

Wing Anti Ice System Operation 

During in-flight operation of a wing anti-ice system (WING ANTI-ICE) maintain the N1 

of both engines equal to or more than the values defined in Table 1, as applicable to 

atmospheric condition. 

Table 1 

New Minimum N1 values required during in-flight operation of a wing anti-ice system 

Two engines operative minimum N1: 

~ -30 °C -15 °C 0°C +l0°C 

31,000 ft 74.6 67.6 52.8 52.8 

22,000 ft 72.4 63.7 52.8 52.1 

3,000 ft 57.3 54.9 49.4 48.8 

Oft 54.9 54.9 49.4 48.8 

These new values include 2% increase compared to former values ( 4-200-05A page 1/2). 

One engine operative or one bleed inoperative minimum N1: 

~ -30 °C -15 °C 0°C +l0°C 

31,000 ft 82.4 77.0 64.0 58.0 

22,000 ft 79.2 72.0 59.8 56.6 

3,000 ft 71.2 66.4 59.8 49.3 

Oft 64.2 63.7 59.8 49.3 

These new values include 2% increase compared to former values ( 4-200-05A page 1/2). 

TAT- Total Air Temperature 

Z- Altitude 

Note 1: Maintaining the N1 above the minimum anti-ice N1 on all engines may lead to 

exceedance of approach speed. Early approach or landing configuration of an 

aeroplane and/or application of airbrakes may be used to control the airspeed. In 

approach and landing and for a limited duration up to three minutes, selection ofN1 

speeds below the minimum anti-ice N1 speed is authorized. In this case it is necessary to 

disengage the autothrottle. 

Effectivity: F2000EX (LX/S variants) SIN 263 to 305,307 to 313,315,320,701 to 734 

without Dassault Aviation SB F2000EX-393. 
Federal Register / Vol. 82, No. 183 / Friday, September 22, 2017 / Rules and Regulations 44309 

paragraph (g) of this AD may be removed 

from the AFM for that airplane. 

(1) If during the inspection required by the 

introductory text to paragraph (h) of this AD 

it is determined that a diaphragm is present: 

Before further flight, replace the wing anti-ice 

system ducting. 

(2) If during the inspection required by the 

introductory text to paragraph (h) of this AD 

it is determined that a diaphragm is not 

present: Before further flight, do a check of 

the anti-ice pipe part number and re-identify 

the wing anti-ice system ducting. 

(i) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Section, Transport Standards Branch, FAA, 

has the authority to approve AMOCs for this 

AD, if requested using the procedures found 

in 14 CFR 39.19. In accordance with 14 CFR 

39.19, send your request to your principal 

inspector or local Flight Standards District 

Office, as appropriate. If sending information 

directly to the International Section, send it 

to the attention of the person identified in 

paragraph (j)(2) of this AD. Information may 

be emailed to: 9-ANM-116-AMOCREQUESTS@faa.gov. Before using any 

approved AMOC, notify your appropriate 

principal inspector, or lacking a principal 

inspector, the manager of the local flight 

standards district office/certificate holding 

district office. 

(2) Contacting the Manufacturer: For any 

requirement in this AD to obtain corrective 

actions from a manufacturer, the action must 

be accomplished using a method approved 

by the Manager, International Section, 

Transport Standards Branch, FAA; or the 

European Aviation Safety Agency (EASA); or 

Dassault Aviation’s EASA Design 

Organization Approval (DOA). If approved by 

the DOA, the approval must include the 

DOA-authorized signature. 

(j) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) 

Emergency AD 2016–0130–E, dated July 5, 

2016, for related information. This MCAI 

may be found in the AD docket on the 

Internet at http://www.regulations.gov by 

searching for and locating Docket No. FAA– 

2017–0494. 

(2) For more information about this AD, 

contact Tom Rodriguez, Aerospace Engineer, 

International Section, Transport Standards 

Branch, FAA, 1601 Lind Avenue SW., 

Renton, WA 98057–3356; telephone 425– 

227–1137; fax 425–227–1149. 

(k) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless this AD specifies otherwise. 

(i) Dassault Aviation Service Bulletin 

F900EX–464, dated June 20, 2016. 

(ii) Dassault Aviation Service Bulletin 

F2000EX–393, dated June 20, 2016. 

(3) For service information identified in 

this AD, contact Dassault Falcon Jet 

Corporation, Teterboro Airport, P.O. Box 

2000, South Hackensack, NJ 07606; 

telephone 201–440–6700; Internet http://

www.dassaultfalcon.com. 

(4) You may view this service information 

at the FAA, Transport Standards Branch, 

1601 Lind Avenue SW., Renton, WA. For 

information on the availability of this 

material at the FAA, call 425–227–1221. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, call 

202–741–6030, or go to: http://

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued in Renton, Washington, on 

September 7, 2017. 

Jeffrey E. Duven, 

Director, System Oversight Division, Aircraft 

Certification Service. 

[FR Doc. 2017–19766 Filed 9–21–17; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2017–0511; Product 

Identifier 2016–NM–176–AD; Amendment 

39–19036; AD 2017–19–06] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc., Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Bombardier, Inc. Model CL–600–1A11 

(CL–600), CL–600–2A12 (CL–601 

Variant), and CL–600–2B16 (CL–601– 

3A, CL–601–3R, and CL–604 Variants) 

airplanes. This AD was prompted by a 

new life limitation that has been 

introduced for the side brace fitting 

shaft and side brace-to-airplane fitting 

pin of the main landing gear (MLG). 

This AD requires revising the 

maintenance or inspection program. 

This AD also requires an inspection to 

identify the serial number, to serialize, 

and to record the accumulated life of the 

side brace fitting shaft of the MLG. We 

are issuing this AD to address the unsafe 

condition on these products. 

DATES: This AD is effective October 27, 

2017. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of October 27, 2017. 

ADDRESSES: For service information 

identified in this final rule, contact 

Bombardier, Inc., 400 Coˆte-Vertu Road 

West, Dorval, Que ́bec H4S 1Y9, Canada; 

Widebody Customer Response Center 

North America toll-free telephone 1– 

866–538–1247 or direct-dial telephone 

1–514–855–2999; fax 514–855–7401; 

email ac.yul@aero.bombardier.com; 

Internet http://www.bombardier.com. 

You may view this referenced service 

information at the FAA, Transport 

Standards Branch, 1601 Lind Avenue 

SW., Renton, WA. For information on 

the availability of this material at the 

FAA, call 425–227–1221. It is also 

available on the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2017– 

0511. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2017– 

0511; or in person at the Docket 

Management Facility between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The AD docket 

contains this AD, the regulatory 

evaluation, any comments received, and 

other information. The street address for 

the Docket Office (telephone 800–647– 

5527) is Docket Management Facility, 

U.S. Department of Transportation, 

Docket Operations, M–30, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue SE., 

Washington, DC 20590. 

FOR FURTHER INFORMATION CONTACT: Aziz 

Ahmed, Aerospace Engineer, Airframe 

and Mechanical Systems Section, FAA, 

New York ACO Branch, 1600 Stewart 

Avenue, Suite 410, Westbury, NY 

11590; telephone 516–228–7329; fax 

516–794–5531. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to certain Bombardier, Inc. Model 

CL–600–1A11 (CL–600), CL–600–2A12 

(CL–601 Variant), and CL–600–2B16 

(CL–601–3A, CL–601–3R, and CL–604 

Variants) airplanes. The NPRM 

published in the Federal Register on 

June 7, 2017 (82 FR 26403) (‘‘the 

NPRM’’). 

Transport Canada Civil Aviation 

(TCCA), which is the aviation authority 

for Canada, has issued Canadian 

Airworthiness Directive CF–2016–17R2, 

dated June 29, 2016 (referred to after 

this as the Mandatory Continuing 

Airworthiness Information, or ‘‘the