Federal Register / Vol. 87, No. 59 / Monday, March 28, 2022 / Proposed Rules 17211 

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 

The FAA determined that this 

proposed AD would not have federalism 

implications under Executive Order 

13132. This proposed AD would 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 this proposed regulation: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Would not affect intrastate 

aviation in Alaska, and 

(3) Would 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 Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 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: 

■ a. Removing Airworthiness Directive 

2021–15–01, Amendment 39–21648 (86 

FR 36487, July 12, 2021); and 

■ b. Adding the following new 

airworthiness directive: 

Rolls-Royce Deutschland Ltd & Co KG (Type 

Certificate previously held by RollsRoyce plc): Docket No. FAA–2022–0296; 

Project Identifier MCAI–2021–01064–E. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) action by May 

12, 2022. 

(b) Affected ADs 

This AD replaces AD 2021–15–01, 

Amendment 39–21648 (86 FR 36487, July 12, 

2021). 

(c) Applicability 

This AD applies to Rolls-Royce 

Deutschland Ltd & Co KG Trent XWB–75, 

Trent XWB–79, Trent XWB–79B, Trent 

XWB–84, and Trent XWB–97 model turbofan 

engines. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 7200, Engine Turbine/Turboprop. 

(e) Unsafe Condition 

This AD was prompted by the 

manufacturer revising the time limits manual 

(TLM) to incorporate revised life limits and 

updated mandatory inspection intervals of 

certain critical rotating parts. The FAA is 

issuing this AD to prevent the failure of 

critical rotating parts. The unsafe condition, 

if not addressed, could result in failure of one 

or more engines, loss of thrust control, and 

loss of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

Except as specified in paragraph (h) of this 

AD: Perform all required actions within the 

compliance times specified in, and in 

accordance with, European Union Aviation 

Safety Agency (EASA) AD 2021–0217. 

(h) Exceptions to EASA AD 2021–0217 

(1) Where EASA AD 2021–0217 defines the 

AMP as the approved Aircraft Maintenance 

Programme on the basis of which the 

operator or the owner ensures the continuing 

airworthiness of each operated engine, this 

AD defines the AMP as the Aircraft 

Maintenance Program on the basis of which 

the operator or the owner ensures the 

continuing airworthiness of each operated 

airplane. 

(2) Where EASA AD 2021–0217 requires 

revising the approved aircraft maintenance 

program (AMP) within 12 months after the 

effective date of EASA AD 2021–0217, this 

AD requires revising the approved AMP and 

airworthiness limitations section (ALS) 

within 120 days after the effective date of this 

AD. 

(3) This AD does not require compliance 

with paragraph (1), Mandatory Inspections 

and Replacement of Life Limited Parts, of 

EASA AD 2021–0217. 

(4) This AD does not require compliance 

with paragraph (2), Corrective Action(s), of 

EASA AD 2021–0217. 

(5) This AD does not require compliance 

with paragraph (4), Credit, of EASA AD 

2021–0217. 

(6) This AD does not require compliance 

with paragraph (5), Recording AD 

Compliance, of EASA AD 2021–0217. 

(7) This AD does not require compliance 

with the ‘‘Remarks’’ section of EASA AD 

2021–0217. 

(i) 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 paragraph (j)(2) of this AD and 

email 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. 

(j) Related Information 

(1) For more information about EASA AD 

2021–0217, contact EASA, KonradAdenauer-Ufer 3, 50668 Cologne, Germany; 

phone: +49 221 8999 000; email: ADs@

easa.europa.eu. You may find this material 

on the EASA website at https://

ad.easa.europa.eu. You may view this 

material 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 (817) 222–5110. 

This material may be found in the AD docket 

at https://www.regulations.gov by searching 

for and locating Docket No. FAA–2022–0296. 

(2) For more information about this AD, 

contact Nicholas Paine, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 District 

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

238–7116; email: nicholas.j.paine@faa.gov. 

(3) For service information identified in 

this AD, contact Rolls-Royce plc, Corporate 

Communications, P.O. Box 31, Derby, DE24 

8BJ, United Kingdom; phone: +44 (0)1332 

242424; fax: +44 (0)1332 249936; website: 

https://www.rolls-royce.com/contact-us.aspx. 

You may view this referenced 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 (817) 222–5110. 

Issued on March 22, 2022. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–06409 Filed 3–25–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0291; Project 

Identifier MCAI–2021–01321–A] 

RIN 2120–AA64 

Airworthiness Directives; British 

Aerospace (Operations) Limited and 

British Aerospace Regional Aircraft 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 


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SUMMARY: The FAA proposes to 

supersede Airworthiness Directive (AD) 

2017–15–06, which applies to British 

Aerospace Regional Aircraft Model 

HP.137 Jetstream Mk.1, Jetstream Series 

200 and 3101, and Jetstream Model 3201 

airplanes. AD 2017–15–06 requires 

repetitively inspecting the main landing 

gear (MLG) for cracks and, if cracks are 

found, replacing the MLG with an 

airworthy part. Since the FAA issued 

AD 2017–15–06, the Civil Aviation 

Authority (CAA) of the United Kingdom 

superseded the mandatory continuing 

airworthiness information (MCAI) 

issued by the European Aviation Safety 

Agency (EASA) to correct an unsafe 

condition on these products. This 

proposed AD would retain the initial 

inspection and the calculation of hours 

time-in-service to flight cycle (FC) 

actions required by AD 2017–15–06, but 

would decrease the repetitive inspection 

interval time from 1,200 flight cycles to 

900 flight cycles. The FAA is proposing 

this AD to address the unsafe condition 

on these products. 

DATES: The FAA must receive comments 

on this proposed AD by May 12, 2022. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 

• Federal eRulemaking Portal: Go to 

https://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue SE, Washington, DC 20590. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For British Aerospace service 

information identified in this NPRM, 

contact BAE Systems (Operations) Ltd., 

Customer Information Department, 

Prestwick International Airport, 

Ayrshire, KA9 2RW, United Kingdom; 

phone: +44 3300 488727; fax: +44 1292 

675704; email: RApublications@

baesystems.com; website: https://

www.baesystems.com/Businesses/ 

RegionalAircraft/. For He ́roux Devtek 

service information identified in this 

NPRM, contact He ́roux Devtek Product 

Support, 8, Pembroke Court, Manor 

Park, Runcorn, Cheshire, WA7 1TG, 

United Kingdom; phone: (855) 679– 

5450; email: technical_support@

herouxdevtek.com; website: https://

www.herouxdevtek.com/en/contact-us. 

You may view this service information 

at the Airworthiness Products Section, 

Operational Safety Branch, FAA, 901 

Locust, Kansas City, MO 64106. For 

information on the availability of this 

material at the FAA, call (817) 222– 

5110. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0291; 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 

NPRM, the MCAI, any comments 

received, and other information. The 

street address for Docket Operations is 

listed above. 

FOR FURTHER INFORMATION CONTACT: 

Doug Rudolph, Aviation Safety 

Engineer, General Aviation & Rotorcraft 

Section, International Validation 

Branch, FAA, 901 Locust, Room 301, 

Kansas City, MO 64106; phone: (816) 

329–4059; email: doug.rudolph@

faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

The FAA invites you to send any 

written relevant data, views, or 

arguments about this proposal. Send 

your comments to an address listed 

under ADDRESSES. Include ‘‘Docket No. 

FAA–2022–0291; Project Identifier 

MCAI–2021–01321–A’’ at the beginning 

of your comments. The most helpful 

comments reference a specific portion of 

the proposal, explain the reason for any 

recommended change, and include 

supporting data. The FAA will consider 

all comments received by the closing 

date and may amend the proposal 

because of those comments. 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to https://

www.regulations.gov, including any 

personal information you provide. The 

agency will also post a report 

summarizing each substantive verbal 

contact received about this proposed 

AD. 

Confidential Business Information 

CBI is commercial or financial 

information that is both customarily and 

actually treated as private by its owner. 

Under the Freedom of Information Act 

(FOIA) (5 U.S.C. 552), CBI is exempt 

from public disclosure. If your 

comments responsive to this NPRM 

contain commercial or financial 

information that is customarily treated 

as private, that you actually treat as 

private, and that is relevant or 

responsive to this NPRM, it is important 

that you clearly designate the submitted 

comments as CBI. Please mark each 

page of your submission containing CBI 

as ‘‘PROPIN.’’ The FAA will treat such 

marked submissions as confidential 

under the FOIA, and they will not be 

placed in the public docket of this 

NPRM. Submissions containing CBI 

should be sent to Doug Rudolph, 

Aviation Safety Engineer, General 

Aviation & Rotorcraft Section, 

International Validation Branch, FAA, 

901 Locust, Room 301, Kansas City, MO 

64106. Any commentary that the FAA 

receives which is not specifically 

designated as CBI will be placed in the 

public docket for this rulemaking. 

Background 

The FAA issued AD 2017–15–06, 

Amendment 39–18966 (82 FR 34846, 

July 27, 2017) (AD 2017–15–06), for 

British Aerospace Regional Aircraft 

Model HP.137 Jetstream Mk.1, Jetstream 

Series 200 and 3101, and Jetstream 

Model 3201 airplanes. AD 2017–15–06 

was prompted by MCAI originated by 

EASA, which is the Technical Agent for 

the Member States of the European 

Union. EASA issued EASA AD 2017– 

0053, dated March 24, 2017, to correct 

an unsafe condition identified as cracks 

in the MLG fitting at the pintle to 

cylinder interface, which could cause 

failure of the MLG. 

AD 2017–15–06 requires repetitively 

inspecting the MLG and, if cracks are 

found, replacing the MLG with an 

airworthy part. The FAA issued AD 

2017–15–06 to detect and correct cracks 

in the MLG, which could lead to 

structural failure of the MLG and result 

in loss of control during takeoffs and 

landings. 

Actions Since AD 2017–15–06 Was 

Issued 

Since the FAA issued AD 2017–15– 

06, the CAA superseded EASA AD 

2017–0053, dated March 24, 2017, and 

issued CAA AD G–2021–0015 dated 

November 24, 2021 (referred to after this 

as ‘‘the MCAI’’). The MCAI states: 

Cracks were found during early fatigue 

testing and in service on the main landing 

gear (MLG) main fitting at the pintle to 

cylinder interface. 

This condition if not detected and 

corrected, could lead to structural failure of 

the MLG, possibly resulting in loss of control 

of the aeroplane during take-off or landing 

runs. 

To address this unsafe condition, BAE 

Systems (Operations) Ltd published several 

Service Bulletins (ISB) which, in 1996, were 

consolidated into a single bulletin, SB 32– 

JA960142, to provide instructions for 

inspection. CAA issued AD 005–03–96 


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accordingly to require repetitive inspections 

of the MLG. 

In 2014 a crack was found which was 

below the critical crack length, but unusually 

large compared to similar cracks previously 

found in service. Further investigation into 

the subject determined that the existing 

inspection intervals remain valid but also 

showed that the assumed detectable defect 

size of a 1.27mm [millimeters] (0.05 in) 

[inch] crack could not be guaranteed using 

the then defined accomplishment 

instructions for a high frequency eddy 

current (HFEC) or fluorescent dye penetrant 

(FDP) inspection. 

Consequently, BAE Systems (Operations) 

Ltd issued SB 32–JA960142 Revision 4, 

which provided an improved procedure for 

HFEC and FDP inspection to ensure the 

detection of cracks of 1.27 mm (0.05 in) 

length. 

In response to this revision, EASA issued 

AD 2017–0053 (corrected 24 March 2017) 

addressing the need for revised inspection 

procedures. 

Recently, an operator performing [EASA] 

AD 2017–0053 (referencing SB 32–JA960142 

rev 4) identified 3 crack indications (13 mm, 

3 mm & 8 mm) in close proximity, the total 

length of which was approximately 38 mm. 

This was an unusual report based of reported 

findings over the 24 years since the SB was 

initially released. In depth laboratory 

investigation of the discrepant part was 

undertaken, which found that the material 

was to specification and the cracks were 

fatigue in nature. The investigation was 

unable to establish a reason for the cracks 

being different in nature to those previously 

reported. 

In response, a further damage tolerance 

analysis was performed, which identified the 

need to reduce the repeat inspection interval 

defined in [EASA] AD 2017–0053. That is, a 

reduction from a repeat of 1,200 flight cycles 

(FC) to a repeat of 900 FC. 

For the reasons described above, this 

[CAA] AD retains the requirements of CAA 

UK AD 005–03–96 (superseded by EASA AD) 

and EASA AD 2017–0053 (superseded by 

this CAA AD) and requires the 

accomplishment of repetitive inspections in 

accordance with new repetitive inspection 

requirements. 

You may examine the MCAI in the 

AD docket at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2022– 

0291. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed British Aerospace 

Jetstream Series 3100 & 3200 Service 

Bulletin 32–JA960142, Revision 5, dated 

December 13, 2019. This service 

information specifies procedures for 

doing a fluorescent penetrant inspection 

for cracks in the MLG. Alternatively, 

this service information specifies 

conducting an eddy current inspection 

for cracks in the MLG in accordance 

with He ́roux Devtek Service Bulletin 

No. 32–56, Revision 4, dated August 16, 

2016, which was incorporated by 

reference as of August 31, 2017 (82 FR 

34846). 

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 ADDRESSES. 

Other Related Service Information 

The FAA reviewed British Aerospace 

Jetstream Series 3100 & 3200 Service 

Bulletin 32–JA960142, Revision 4, dated 

October 21, 2016. This service 

information specifies procedures for 

doing a fluorescent penetrant inspection 

for cracks in the MLG. Alternatively, 

this service information specifies 

conducting an eddy current inspection 

for cracks in the MLG in accordance 

with He ́roux Devtek Service Bulletin 

No. 32–56, Revision 4, dated August 16, 

2016. This service information also 

specifies corrective actions if any crack 

found exceeds a certain length. 

FAA’s Determination 

This product has been approved by 

the aviation authority of another 

country and is approved for operation in 

the United States. Pursuant to the FAA’s 

bilateral agreement with this State of 

Design Authority, it has notified the 

FAA of the unsafe condition described 

in the MCAI and service information 

referenced above. The FAA is issuing 

this NPRM after determining the unsafe 

condition described previously is likely 

to exist or develop on other products of 

the same type design. 

Proposed AD Requirements in This 

NPRM 

This proposed AD would retain the 

initial inspection, the calculation of 

hours time-in-service to flight cycle (FC) 

action, and replacement as necessary 

required by AD 2017–15–06, but would 

decrease the repetitive inspection 

interval time from 1,200 flight cycles to 

900 flight cycles. 

Differences Between This Proposed AD 

and the MCAI 

The MCAI does not apply to the 

Model HP.137 Jetstream Mk.1 or Model 

Jetstream Series 200, whereas this 

proposed AD would include those 

models because they have an FAA type 

certificate and share a similar type 

design in the affected area. 

The MCAI and service information 

apply to Model Jetstream Series 3100 

and Jetstream Series 3200 airplanes, 

which are identified on the FAA type 

certificates as Jetstream Model 3101 and 

Jetstream Model 3201 airplanes, 

respectively. 

The MCAI gives credit for inspections 

and corrective actions accomplished 

before the effective date of the MCAI 

using BAE Systems (Operations) Ltd SB 

32–JA960142 Revision 5, Revision 4, or 

Revision 3. This proposed AD would 

not give credit for Revision 3, as AD 

2017–15–06 did not provide credit and 

the FAA did not receive any requests to 

use Revision 3 as an alternative method 

of compliance. 

The MCAI requires compliance with 

all of the accomplishment instructions 

in the service information, which 

includes reporting the inspection results 

(if there is a crack) to the manufacturer. 

This proposed AD would not require 

reporting information to the 

manufacturer. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 18 

airplanes of U.S. registry. 

The FAA estimates the following 

costs to comply with this proposed AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

airplane Cost on U.S. operators 

Inspection ............................... 6 work-hours × $85 per hour 

= $510.

Not applicable ........................ $510 $9,180 per inspection cycle. 

The FAA estimates the following 

costs to replace the MLG based on the 

results of the proposed inspection. The 

FAA has no way of determining the 

number of airplanes that might need 

this replacement: 


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ON-CONDITION COSTS

Action Labor cost Parts cost Cost per 

airplane 

Replace the MLG ......................................................... 1 work-hour × $85 per hour = $85 ............................... $5,000 $1,530 

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 

The FAA determined that this 

proposed AD would not have federalism 

implications under Executive Order 

13132. This proposed AD would 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 the proposed regulation: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Would not affect intrastate 

aviation in Alaska, and 

(3) Would 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 Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 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: 

■ a. Removing Airworthiness Directive 

2017–15–06, Amendment 39–18966 (82 

FR 34846, July 27, 2017); and 

■ b. Adding the following new 

airworthiness directive: 

British Aerospace (Operations) Limited and 

British Aerospace Regional Aircraft: 

Docket No. FAA–2022–0291; Project 

Identifier MCAI–2021–01321–A. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by May 12, 

2022. 

(b) Affected ADs 

This AD replaces AD 2017–15–06, 

Amendment 39–18966 (82 FR 34846, July 27, 

2017) (AD 2017–15–06). 

(c) Applicability 

This AD applies to British Aerospace 

(Operations) Limited Model HP.137 Jetstream 

Mk.1, Jetstream Series 200, and Jetstream 

Model 3101 airplanes and British Aerospace 

Regional Aircraft Model Jetstream Model 

3201 airplanes, all serial numbers, 

certificated in any category. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 3211, Main Landing Gear Attach 

Section. 

(e) Unsafe Condition 

This AD was prompted by cracks found on 

the main landing gear (MLG) main fitting at 

the pintle to cylinder interface. The FAA is 

issuing this AD to detect and correct cracks 

in the MLG. The unsafe condition, if not 

addressed, could cause failure of the MLG, 

which could result in loss of control of the 

airplane during takeoffs and landings. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Actions 

(1) Within the compliance times listed in 

paragraph (g)(1)(i) or (ii) of this AD, as 

applicable, inspect the MLG for cracks by 

following Appendix 1, sections A through G, 

of British Aerospace Jetstream Series 3100 & 

3200 Service Bulletin 32–JA960142, Revision 

5, dated December 13, 2019; or the 

Accomplishment Instructions, sections A 

through D(6), in He ́roux Devtek Service 

Bulletin 32–56, Revision 4, dated August 16, 

2016. 

(i) For airplanes that have been inspected 

in accordance with AD 2017–15–06: Before 

the MLG accumulates 900 flight cycles since 

the last inspection or within 150 flight cycles 

after the effective date of this AD, whichever 

occurs later, and thereafter at intervals not to 

exceed 900 flight cycles. 

(ii) For airplanes that have not been 

inspected in accordance with AD 2017–15– 

06: Before the MLG accumulates 8,000 flight 

cycles since first installation on an airplane 

or within 50 flight cycles after the effective 

date of this AD, whichever occurs later, and 

thereafter at intervals not to exceed 900 flight 

cycles. 

(2) If any crack is found during any 

inspection required by paragraph (g)(1) of 

this AD, before further flight, replace the 

MLG with an airworthy MLG and continue 

the inspections as required by paragraph 

(g)(1) of this AD. 

(3) The compliance times in paragraphs 

(g)(1)(i) and (ii) of this AD are presented in 

flight cycles (landings). If the number of total 

flight cycles is unknown, for purposes of this 

AD, the number of flight cycles is the hours 

time-in-service (TIS) accumulated on the 

airplane multiplied by 0.75. For example: 

(i) 100 hours TIS × 0.75 = 75 flight cycles. 

(ii) 1,000 hours TIS × 0.75 = 750 flight 

cycles. 

(h) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, International Validation 

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 (i)(1) of this AD and 

email to: 9-AVS-AIR-730-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. 

(i) Related Information 

(1) For more information about this AD, 

contact Doug Rudolph, Aviation Safety 

Engineer, General Aviation & Rotorcraft 

Section, International Validation Branch, 

FAA, 901 Locust, Room 301, Kansas City, 

MO 64106; phone: (816) 329–4059; email: 

doug.rudolph@faa.gov. 

(2) Refer to Civil Aviation Authority (CAA) 

AD G–2021–0015, dated November 24, 2021, 

for more information. You may examine the 

CAA AD in the AD docket at 


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1See Executive Order 13985 (January 20, 2021), 

Section 1. 

https:www.regulations.gov by searching for 

and locating Docket No. FAA–2022–0291. 

(3) For British Aerospace service 

information identified in this AD, contact 

BAE Systems (Operations) Ltd., Customer 

Information Department, Prestwick 

International Airport, Ayrshire, KA9 2RW, 

United Kingdom; phone: +44 3300 488727; 

fax: +44 1292 675704; email: 

RApublications@baesystems.com; website: 

https://www.baesystems.com/Businesses/ 

RegionalAircraft/. For He ́roux Devtek service 

information identified in this AD, contact 

He ́roux Devtek Product Support, 8, Pembroke 

Court, Manor Park, Runcorn, Cheshire, WA7 

1TG, United Kingdom; phone: (855) 679– 

5450; email: technical_support@

herouxdevtek.com; website: https://

www.herouxdevtek.com/en/contact-us. You 

may view this service information at the 

Airworthiness Products Section, Operational 

Safety Branch, FAA, 901 Locust, Kansas City, 

MO 64106. For information on the 

availability of this material at the FAA, call 

(817) 222–5110. 

Issued on March 22, 2022. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–06428 Filed 3–25–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Office of the Secretary 

14 CFR Part 382 

[Docket No. DOT–OST–2021–0137] 

RIN 2105–AE89 

Accessible Lavatories on Single-Aisle 

Aircraft: Part 2 

AGENCY: Office of the Secretary (OST), 

U.S. Department of Transportation 

(DOT). 

ACTION: Notice of proposed rulemaking. 

SUMMARY: The U.S. Department of 

Transportation (Department or DOT) 

proposes in this notice of proposed 

rulemaking (NPRM) to require airlines 

to ensure that at least one lavatory on 

new single-aisle aircraft with 125 or 

more passenger seats is large enough to 

permit a passenger with a disability 

(with the help of an assistant, if 

necessary) to approach, enter, and 

maneuver within the aircraft lavatory, as 

necessary, to use all lavatory facilities 

and leave by means of the aircraft’s onboard wheelchair. 

DATES: Comments should be filed by 

May 27, 2022. Late-filed comments will 

be considered to the extent practicable. 

ADDRESSES: You may file comments 

identified by docket number DOT–OST– 

2021–0137 by any of the following 

methods: 

• Federal eRulemaking Portal: Go to 

https://www.regulations.gov and follow 

the online instructions for submitting 

comments. 

• Mail: Docket Management Facility, 

U.S. Department of Transportation, 1200 

New Jersey Ave. SE, West Building 

Ground Floor, Room W12–140, 

Washington, DC 20590–0001. 

• Hand Delivery or Courier: West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Ave. SE, between 9:00 

a.m. and 5:00 p.m. ET, Monday through 

Friday, except Federal holidays. 

• Fax: (202) 493–2251. 

Instructions: You must include the 

agency name and docket number DOT– 

OST–2021–0137 or the Regulation 

Identifier Number (RIN) for the 

rulemaking at the beginning of your 

comment. All comments received will 

be posted without change to https://

www.regulations.gov, including any 

personal information provided. 

Confidential Business Information 

(CBI): CBI is commercial or financial 

information that is both customarily and 

actually treated as private by its owner. 

Under the Freedom of Information Act 

(FOIA) (5 U.S.C. 552), CBI is exempt 

from public disclosure. If your 

comments responsive to this NPRM 

contain commercial or financial 

information that is customarily treated 

as private, that you actually treat as 

private, and that is relevant or 

responsive to this NPRM, it is important 

that you clearly designate the submitted 

comments as CBI. Please mark each 

page of your submission containing CBI 

as ‘‘PROPIN’’ to indicate that it contains 

proprietary information. DOT will treat 

such marked submissions as 

confidential under the Freedom of 

Information Act (FOIA), and they will 

not be placed in the public docket of 

this NPRM. Submissions containing CBI 

should be sent to Robert Gorman, Senior 

Trial Attorney, Office of Aviation 

Consumer Protection, U.S. Department 

of Transportation, 1200 New Jersey Ave. 

SE, Washington, DC 20590, 

robert.gorman@dot.gov (email). Any 

commentary that DOT receives which is 

not specifically designated as CBI will 

be placed in the public docket for this 

rulemaking. 

Privacy Act: Anyone can search the 

electronic form of all comments 

received in any of our dockets by the 

name of the individual submitting the 

comment (or signing the comment, if 

submitted on behalf of an association, 

business, labor union, etc.). You may 

review DOT’s complete Privacy Act 

statement in the Federal Register 

published on April 11, 2000 (65 FR 

19477–78), or you may visit https://

www.transportation.gov/privacy. 

Docket: For access to the docket to 

read background documents or 

comments received, go to https://

www.regulations.gov, or to the street 

address listed above. Follow the online 

instructions for accessing the dockets. 

FOR FURTHER INFORMATION CONTACT: 

Robert Gorman, Senior Trial Attorney, 

Office of Aviation Consumer Protection, 

U.S. Department of Transportation, 1200 

New Jersey Ave. SE, Washington, DC 

20590, 202–366–9342, 202–366–7152 

(fax), robert.gorman@dot.gov (email). 

You may also contact Blane Workie, 

Assistant General Counsel, Office of 

Aviation Consumer Protection, U.S. 

Department of Transportation, 1200 

New Jersey Ave. SE, Washington, DC 

20590, 202–366–9342, 202–366–7152 

(fax), blane.workie@dot.gov. 

SUPPLEMENTARY INFORMATION: 

I. Background 

Like all individuals, those with 

disabilities rely on transportation for all 

aspects of their lives. Transportation 

connects individuals to jobs and 

services, and it opens the door to 

opportunity. The Department is 

committed to removing transportation 

barriers that exist for people with 

disabilities. This includes challenges 

posed by inaccessible lavatories on 

single-aisle aircraft. 

The following proposed rule is the 

result of a negotiated rulemaking in 

2016 that was produced through the 

consensus of multiple disability 

organizations, a wide variety of aviation 

industry members, and other 

stakeholders. As we explain below, the 

Department made a commitment to the 

stakeholders that if they reached 

consensus on the terms of a rulemaking, 

the Department would act in good faith 

to issue a proposed rule that reflects 

those terms as closely as possible. This 

NPRM is the product of the 

Department’s commitment to 

stakeholders during that process. 

At the same time that DOT honors its 

past commitments, the Department also 

recognizes that it is the affirmative 

responsibility of the Federal 

Government to advance equity, civil 

rights, and equal opportunity for all 

individuals, including individuals with 

disabilities.1 The Department has 

concerns that the considerable length of 

time that this NPRM proposes to allow 

for much-needed accessibility 

improvements may not advance equity, 

civil rights or equal opportunity for 

persons with disabilities quickly 

enough. Over 25 million Americans 

have mobility issues that may require 


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