10796 Federal Register / Vol. 86, No. 34 / Tuesday, February 23, 2021 / Rules and Regulations 

Boeing Service Bulletin B787–81205– 

SB260007–00, Issue 001, dated February 22, 

2019, which is referred to in Boeing 

Requirements Bulletin B787–81205– 

SB260007–00 RB, Issue 001, dated February 

22, 2019. 

(m) New Restrictions on Alternative Actions 

and Intervals 

After accomplishment of the existing 

maintenance or inspection program revision 

required by paragraph (k) of this AD, no 

alternative actions (e.g., inspections) or 

intervals may be used unless the actions or 

intervals are approved as an AMOC in 

accordance with the procedures specified in 

paragraph (p) of this AD. 

(n) Terminating Action for Repetitive 

Inspections 

Accomplishment of the actions required by 

paragraph (i) of this AD on all affected 

airplanes in an operator’s fleet terminates the 

requirements of paragraph (k) of this AD. 

(o) Parts Installation Prohibition 

For Model 787–8, –9, and –10 airplanes, 

except those identified in Boeing 

Requirements Bulletin B787–81205– 

SB260008–00 RB, Issue 001, dated March 10, 

2020: As of the effective date of this AD, no 

person may install on any airplane any 

engine fire control panel having part number 

(P/N) 412600–001, or any engine fire shutoff 

switch having P/N 417000–101 or P/N 

417000–102. 

(p) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Seattle ACO 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 manager of the 

certification office, send it to the attention of 

the person identified in paragraph (q) of this 

AD. Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov. 

(2) 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. 

(3) An AMOC that provides an acceptable 

level of safety may be used for any repair, 

modification, or alteration required by this 

AD if it is approved by The Boeing Company 

Organization Designation Authorization 

(ODA) that has been authorized by the 

Manager, Seattle ACO Branch, FAA, to make 

those findings. To be approved, the repair 

method, modification deviation, or alteration 

deviation must meet the certification basis of 

the airplane, and the approval must 

specifically refer to this AD. 

(4) AMOCs approved previously for AD 

2019–02–03 are approved as AMOCs for the 

corresponding provisions of paragraph (g) of 

this AD. 

(q) Related Information 

For more information about this AD, 

contact Tak Kobayashi, Aerospace Engineer, 

Propulsion Section, FAA, Seattle ACO 

Branch, 2200 South 216th St., Des Moines, 

WA 98198; phone and fax: 206–231–3553; 

email: takahisa.kobayashi@faa.gov. 

(r) 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 the AD specifies otherwise. 

(i) Boeing Requirements Bulletin B787– 

81205–SB260007–00 RB, Issue 001, dated 

February 22, 2019. 

(ii) Boeing Requirements Bulletin B787– 

81205–SB260008–00 RB, Issue 001, dated 

March 10, 2020. 

(3) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Contractual & Data 

Services (C&DS), 2600 Westminster Blvd., 

MC 110–SK57, Seal Beach, CA 90740–5600; 

telephone 562–797–1717; internet https://

www.myboeingfleet.com. 

(4) You may view this service information 

at the FAA, Airworthiness Products Section, 

Operational Safety Branch, 2200 South 216th 

St., Des Moines, WA. For information on the 

availability of this material at the FAA, call 

206–231–3195. 

(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, 

email fedreg.legal@nara.gov, or go to: https:// 

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

Issued on January 7, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–03567 Filed 2–22–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2020–0653; Project 

Identifier AD–2020–00631–E; Amendment 

39–21390; AD 2021–02–07] 

RIN 2120–AA64 

Airworthiness Directives; General 

Electric Company Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

General Electric Company (GE) GEnx– 

1B64, –1B64/P1, –1B64/P2, –1B67, 

–1B67/P1, –1B67/P2, –1B70, –1B70/75/ 

P1, –1B70/75/P2, –1B70/P1, –1B70/P2, 

–1B70C/P1, –1B70C/P2, –1B74/75/P1, 

–1B74/75/P2, –1B76/P2, and –1B76A/ 

P2 model turbofan engines. This AD 

was prompted by a report of a crack in 

the outer fuel manifold causing fuel 

leakage. This AD requires initial and 

repetitive visual inspections of the 

cushioned loop clamp (p-clamp) and, 

depending on the results of the 

inspection, a spot fluorescent penetrant 

inspection (FPI) of the outer fuel 

manifold. Depending on the results of 

the FPI, this AD may require 

replacement of the outer fuel manifold. 

This AD also requires initial and 

repetitive replacements of the p-clamp. 

The FAA is issuing this AD to address 

the unsafe condition on these products. 

DATES: This AD is effective March 30, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of March 30, 2021. 

ADDRESSES: For service information 

identified in this final rule, contact 

General Electric Company, 1 Neumann 

Way, Cincinnati, OH 45215; phone: 

(513) 552–3272; email: 

aviation.fleetsupport@ae.ge.com; 

website: www.ge.com. You may view 

this service information at the FAA, 

Airworthiness Products Section, 

Operational Safety Branch, 1200 District 

Avenue, Burlington, MA 01803. For 

information on the availability of this 

material at the FAA, call (781) 238– 

7759. It is also available at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2020– 

0653. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2020–0653; or in person at Docket 

Operations between 9 a.m. and 5 p.m., 

Monday through Friday, except Federal 

holidays. The AD docket contains this 

final rule, any comments received, and 

other information. The address for 

Docket Operations is 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: 

Mehdi Lamnyi, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 

District Avenue, Burlington, MA 01803; 

phone: (781) 238–7743; fax: (781) 238– 

7199; email: Mehdi.Lamnyi@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

Federal Register / Vol. 86, No. 34 / Tuesday, February 23, 2021 / Rules and Regulations 10797 

apply to all GE GEnx–1B64, –1B64/P1, 

–1B64/P2, –1B67, –1B67/P1, –1B67/P2, 

–1B70, –1B70/75/P1, –1B70/75/P2, 

–1B70/P1, –1B70/P2, –1B70C/P1, 

–1B70C/P2, –1B74/75/P1, –1B74/75/P2, 

–1B76/P2, and –1B76A/P2 model 

turbofan engines. The NPRM published 

in the Federal Register on July 20, 2020 

(85 FR 43752). The NPRM was 

prompted by a report of a crack in the 

outer fuel manifold causing fuel leakage. 

In the NPRM, the FAA proposed to 

require initial and repetitive visual 

inspections of the p-clamp and, 

depending on the results of the 

inspection, a spot FPI of the outer fuel 

manifold. Depending on the results of 

the FPI, the NPRM proposed to require 

replacement of the outer fuel manifold. 

The NPRM also proposed to require 

initial and repetitive replacements of 

the p-clamp. The FAA is issuing this AD 

to address the unsafe condition on these 

products. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received comments from six 

commenters. The commenters were Air 

Lines Pilots Association, International 

(ALPA); American Airlines (AAL); 

Boeing Commercial Airplanes (Boeing); 

GE Aviation (GE); Ethiopian Airlines; 

and United Airlines (UAL). One 

commenter requested changes to 

paragraph (g), Required Actions, of this 

AD and to On-Condition Costs. Two 

commenters requested a change to 

compliance that was not implemented. 

Two commenters requested clarification 

of the AD requirements. Four of the six 

commenters expressed support for the 

AD. The following presents the 

comments received on the NPRM and 

the FAA’s response to each comment. 

Request To Add Affected P-Clamp 

Significant Item Number (SIN) 

GE requested that the FAA update 

paragraph (g), Required Actions, of this 

AD to include the affected p-clamp SIN 

when the p-clamp is referenced. GE 

recognized that the p-clamp SIN is 

defined in paragraph (h), Definition, of 

this AD. However, GE reasoned that as 

there are multiple p-clamps to be 

inspected per GEnx–1B Engine Manual, 

05–21–00, MANDATORY INSPECTION, 

listing the p-clamp SIN in paragraph (g) 

of this AD avoids confusion. 

The FAA agrees to include the pclamp SIN in paragraph (g) of this AD. 

Request To Update On-Condition Cost 

GE requested that the FAA revise the 

replacement of the outer fuel manifold 

in On-Condition Costs from 250 work 

hours to 2 work hours. GE reasoned that 

GE GEnx–1B Service Bulletin (SB) 73– 

0080 R01, dated August 29, 2019, 

references GE GEnx–1B SB 73–0053 for 

instructions to replace the outer fuel 

manifold. GE noted that GE GEnx–1B 

SB 73–0053 estimates that two hours are 

needed to replace the outer fuel 

manifold. GE stated that the discrepancy 

between the NPRM and service 

information could cause confusion or 

lead operators to opt to remove the 

engine to perform the outer fuel 

manifold replacement. 

The FAA agrees. The FAA changed 

the estimated labor hours for replacing 

the outer fuel manifold in the OnCondition Costs section of this AD from 

250 work hours to 2 work hours. The 

FAA also changed the estimated cost 

per product for replacing the outer fuel 

manifold in the On-Condition Costs 

section of this AD from $39,650 to 

$18,570, which reflects the reduction in 

labor hours. 

Request To Allow Use of Later 

Revisions of Service Information 

AAL and UAL requested that the FAA 

add the phrase ‘‘or later’’ when 

referencing the service information in 

this AD. AAL stated that the 

manufacturer indicated that the service 

information is intended only to be a 

containment measure. Specifying ‘‘or 

later’’ could prevent numerous requests 

for Alternative Methods of Compliance 

if the manufacturer revises the service 

information. UAL stated that the 

manufacturer is developing a 

terminating action and, as a result, a 

revision to the service information is 

expected. 

The FAA disagrees with adding 

language that allows the use of later 

revisions of the service information 

when performing the required actions of 

this AD. Later revisions of the service 

information have not been published by 

the manufacturer or reviewed by the 

FAA. 

Request To Clarify Sending the Outer 

Fuel Manifold for Repair 

AAL requested that the FAA clarify if 

the removed outer fuel manifold needs 

to be sent for repair. AAL cited 

references within paragraph 3.B.(4)(b) of 

GE GEnx–1B SB 73–0080 R01, dated 

August 29, 2019, that instructs operators 

to send removed outer fuel manifolds 

for repair. 

The FAA agrees that sending a 

removed outer fuel manifold for repair, 

as stated in paragraph 3.B.(4)(b) of GE 

GEnx–1B SB 73–0080 R01, dated 

August 29, 2019, is not mandated by 

this AD. This AD addresses the unsafe 

condition by requiring the removal of an 

outer fuel manifold if a crack or a sign 

of leakage is found and replacing it with 

a part eligible for installation. This AD 

does not require sending an outer fuel 

manifold removed in accordance with 

paragraph (g)(2)(i) of this AD for repair. 

The FAA clarified this by adding 

paragraph (i), No Repair Requirement, to 

this AD. 

Request To Clarify if Need To Comply 

Again 

Ethiopian Airlines asked if operators 

who inspected and replaced the affected 

p-clamp using GE GEnx–1B SB 73–0080 

R01, dated August 29, 2019, before the 

effective date of this AD, need to 

comply again. 

If operators performed the initial 

visual inspection and replacement of 

the p-clamp as required by paragraphs 

(g)(1) and (3) of this AD before the 

effective date of this AD, then these 

actions meet the initial visual 

inspection and replacement 

requirements of this AD. Paragraph (f), 

Compliance, of this AD requires 

compliance with this AD within the 

times specified, unless already done. If 

the initial visual inspection and 

replacement of the p-clamp was already 

performed prior to the effective date of 

this AD, operators must perform the 

repetitive inspections, follow-onactions, and replacements of the pclamp required by paragraphs (g)(1)(i), 

(2), and (3) of this AD using the stated 

compliance intervals. 

Support for the AD 

AAL, ALPA, Boeing, and UAL 

expressed support for the AD. 

Conclusion 

The FAA reviewed the relevant data, 

considered any comments received, and 

determined that air safety requires 

adopting this AD as proposed. 

Accordingly, the FAA is issuing this AD 

to address the unsafe condition on these 

products. Except for minor editorial 

changes and any other changes 

described previously, this AD is 

adopted as proposed in the NPRM. 

None of the changes will increase the 

economic burden on any operator. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed GE GEnx–1B SB 

73–0080 R01, dated August 29, 2019. 

This SB describes procedures for 

replacing the p-clamp located at the 

signal fuel tube hose, SIN 34200, and 

instructions for removing the signal fuel 

tube hose when a p-clamp is found 

damaged or missing. This service 

information is reasonably available 

because the interested parties have 

access to it through their normal course 

10798 Federal Register / Vol. 86, No. 34 / Tuesday, February 23, 2021 / Rules and Regulations 

of business or by the means identified 

in ADDRESSES. 

Interim Action 

The FAA considers this AD interim 

action. The manufacturer is still 

reviewing this unsafe condition and 

may develop a terminating action. 

Costs of Compliance 

The FAA estimates that this AD 

affects 190 engines installed on 

airplanes of U.S. registry. 

The FAA estimates the following 

costs to comply with this AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Visually inspect the p-clamp ........................... 0.25 work-hours × $85 per hour = $21.25 ..... $0 $21.25 $4,037.50 

Replace the p-clamp ....................................... 0.25 work-hours × $85 = $21.25 .................... 102 123.25 23,417.50 

The FAA estimates the following 

costs to do any necessary FPIs and 

replacements that are required based on 

the results of the visual inspection. The 

agency has no way of determining the 

number of aircraft that require FPI or 

replacement: 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per 

product 

FPI the outer fuel manifold ........................................... 2.5 work-hours × $85 per hour = $212.50 ................... $0 $212.50 

Replace the outer fuel manifold ................................... 2 work-hours × $85 per hour = $170 ........................... 18,400 18,570 

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. 

The FAA is 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. 

Regulatory Findings 

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) Will not affect intrastate aviation 

in Alaska, and 

(3) 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. 

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 adding 

the following new airworthiness 

directive: 

2021–02–07 General Electric Company: 

Amendment 39–21390; Docket No. 

FAA–2020–0653; Project Identifier AD– 

2020–00631–E. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective March 30, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all General Electric 

Company (GE) GEnx–1B64, –1B64/P1, 

–1B64/P2, –1B67, –1B67/P1, –1B67/P2, 

–1B70, –1B70/75/P1, –1B70/75/P2, –1B70/ 

P1, –1B70/P2, –1B70C/P1, –1B70C/P2, 

–1B74/75/P1, –1B74/75/P2, –1B76/P2, and 

–1B76A/P2 model turbofan engines. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 7310, Engine Fuel Distribution. 

(e) Unsafe Condition 

This AD was prompted by a report of a 

crack in the outer fuel manifold causing fuel 

leakage. The FAA is issuing this AD to 

prevent failure of the outer fuel manifold. 

The unsafe condition, if not addressed, could 

result in engine fire and damage to the 

airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) Within 500 flight cycles (FCs) after the 

effective date of this AD, perform a visual 

inspection of the cushioned loop clamp 

(p-clamp), significant item number (SIN) 

34282, to verify the p-clamp is undamaged 

and installed. 

(i) Thereafter, perform the visual 

inspection required by (g)(1) of this AD at 

intervals not to exceed 500 FCs since the last 

inspection. 

(ii) [Reserved] 

(2) If, during any visual inspection 

required by paragraphs (g)(1) or (g)(1)(i) of 

this AD, the p-clamp (SIN 34282) is outside 

of the limits in paragraph 3.B.(4) of GE 

GEnx–1B Service Bulletin (SB) 73–0080 R01, 

dated August 29, 2019, or if the p-clamp (SIN 

Federal Register / Vol. 86, No. 34 / Tuesday, February 23, 2021 / Rules and Regulations 10799 

34282) is missing, perform a spot fluorescent 

penetrant inspection of the outer fuel 

manifold, part number (P/N) 2403M46G01, 

SIN 34302, using Accomplishment 

Instructions, paragraph 3.B.(4)(b), of GE 

GEnx–1B SB 73–0080 R01, dated August 29, 

2019. 

(i) If a crack or a sign of fuel leakage is 

found, before further flight, remove the outer 

fuel manifold, P/N 2403M46G01, SIN 34302, 

from service and replace with a part eligible 

for installation. 

(ii) [Reserved] 

(3) Within 500 FCs after the effective date 

of this AD, and thereafter at intervals not to 

exceed 500 FCs from the last p-clamp 

replacement, replace the p-clamp (SIN 

34282) with a new p-clamp (SIN 34282). 

Complete this required action after 

performing the visual inspections required by 

paragraphs (g)(1) and (g)(1)(i) of this AD. 

(h) Definition 

For the purpose of this AD, a p-clamp is 

a clamp, P/N J1432P12, with SIN 34282, 

located at the signal fuel tube hose, SIN 

34200, as shown in Accomplishment 

Instructions, paragraph 3, Figure 1, ‘‘Outer 

Fuel Manifold and Clamp Location,’’ of GE 

GEnx–1B SB 73–0080 R01, dated August 29, 

2019. 

(i) No Repair Requirement 

Sending a removed outer fuel manifold for 

repair, as set forth in the Accomplishment 

Instructions, paragraph 3.B.(4)(b), of GE 

GEnx–1B SB 73–0080 R01, dated August 29, 

2019, is not required by this AD. 

(j) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, ECO 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 manager of the certification office, 

send it to the attention of the person 

identified in Related Information. You may 

email your request to: ANE-AD-AMOC@

faa.gov. 

(2) 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. 

(k) Related Information 

For more information about this AD, 

contact Mehdi Lamnyi, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 District 

Avenue, Burlington, MA 01803; phone: (781) 

238–7743; fax: (781) 238–7199; email: 

Mehdi.Lamnyi@faa.gov. 

(l) 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 the AD specifies otherwise. 

(i) General Electric Company (GE) GEnx– 

1B Service Bulletin 73–0080 R01, dated 

August 29, 2019. 

(ii) [Reserved] 

(3) For GE service information identified in 

this AD, contact General Electric Company, 

1 Neumann Way, Cincinnati, OH 45215; 

phone: (513) 552–3272; email: 

aviation.fleetsupport@ae.ge.com; website: 

www.ge.com. 

(4) You may view this service information 

at FAA, Airworthiness Products Section, 

Operational Safety Branch, 1200 District 

Avenue, Burlington, MA 01803. For 

information on the availability of this 

material at the FAA, call (781) 238–7759. 

(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, 

email: fedreg.legal@nara.gov, or go to: 

https://www.archives.gov/federal-register/cfr/ 

ibr-locations.html. 

Issued on January 8, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–03571 Filed 2–22–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2020–1110; Project 

Identifier MCAI–2020–01003–T; Amendment 

39–21426; AD 2021–04–05] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Canada Limited Partnership (Type 

Certificate Previously Held by C Series 

Aircraft Limited Partnership (CSALP); 

Bombardier, Inc.) Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2019–23– 

15, which applied to certain Airbus 

Canada Limited Partnership Model BD– 

500–1A10 and BD–500–1A11 airplanes. 

AD 2019–23–15 required revising the 

existing maintenance or inspection 

program, as applicable, to incorporate 

new or more restrictive airworthiness 

limitations. This AD requires revising 

the existing maintenance or inspection 

program, as applicable, to incorporate 

new or more restrictive airworthiness 

limitations. This AD was prompted by 

a determination that new or more 

restrictive airworthiness limitations are 

necessary. The FAA is issuing this AD 

to address the unsafe condition on these 

products. 

DATES: This AD is effective March 30, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of March 30, 2021. 

ADDRESSES: For service information 

identified in this final rule, contact 

Airbus Canada Limited Partnership, 

13100 Henri-Fabre Boulevard, Mirabel, 

Que ́bec, J7N 3C6, Canada; telephone 

450–476–7676; email a220_crc@

abc.airbus; internet http://

a220world.airbus.com. You may view 

this referenced service information at 

the FAA, Airworthiness Products 

Section, Operational Safety Branch, 

2200 South 216th St., Des Moines, WA. 

For information on the availability of 

this material at the FAA, call 206–231– 

3195. It is also available on the internet 

at https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2020–1110. 

Examining the AD Docket 

You may examine the AD docket on 

the internet at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2020– 

1110; or in person at Docket Operations 

between 9 a.m. and 5 p.m., Monday 

through Friday, except Federal holidays. 

The AD docket contains this final rule, 

any comments received, and other 

information. The address for Docket 

Operations is 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: 

Andrea Jimenez, Aerospace Engineer, 

Airframe and Propulsion Section, FAA, 

New York ACO Branch, 1600 Stewart 

Avenue, Suite 410, Westbury, NY 

11590; telephone: 516–228–7330; fax: 

516–794–5531; email: 9-avs-nyaco-cos@

faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

Transport Canada Civil Aviation 

(TCCA), which is the aviation authority 

for Canada, has issued TCCA AD CF– 

2020–25, dated July 16, 2020 (also 

referred to as the Mandatory Continuing 

Airworthiness Information, or the 

MCAI), to correct an unsafe condition 

for certain Airbus Canada Limited 

Partnership Model BD–500–1A10 and 

BD–500–1A11 airplanes. You may 

examine the MCAI in the AD docket on 

the internet at https://

www.regulations.gov by searching for