16118 Federal Register / Vol. 87, No. 55 / Tuesday, March 22, 2022 / Proposed Rules 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0285; Project 

Identifier MCAI–2021–01448–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). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for all 

British Aerospace (Operations) Limited 

Model Jetstream Model 3101 and British 

Aerospace Regional Aircraft Model 

Jetstream Model 3201 airplanes. This 

proposed AD was prompted by 

mandatory continuing airworthiness 

information (MCAI) originated by an 

aviation authority of another country to 

identify and correct an unsafe condition 

on an aviation product. The MCAI 

identifies the unsafe condition as stress 

corrosion cracking of the primary flight 

control cable terminals. This proposed 

AD would require repetitively 

inspecting the turnbuckle type control 

cable terminals in the rudder and 

elevator primary flight control circuits 

for corrosion, pitting, and cracking and, 

depending on the inspection results, 

replacing an affected cable assembly. 

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 6, 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 service information identified in 

this NPRM, contact BAE Systems 

(Operations) Ltd., Customer Information 

Department, Prestwick International 

Airport, Ayrshire, KA9 2RW, Scotland, 

United Kingdom; phone: +44 3300 

488727; fax: +44 1292 675704; email: 

RApublications@baesystems.com; 

website: https://www.baesystems.com/ 

businesses/regionalaircraft/. 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–2022–0285; 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–2022–0285; Project Identifier 

MCAI–2021–01448–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 this 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 NPRM. 

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 Civil Aviation Authority (CAA), 

which is the aviation authority for the 

United Kingdom, has issued CAA AD 

G–2021–0017, dated December 21, 2021 

(referred to after this as ‘‘the MCAI’’), to 

address an unsafe condition on all BAE 

Systems (Operations) Limited Model 

Jetstream Series 3100 and Series 3200 

airplanes. The MCAI states: 

There were reports of cable terminal 

failures on a variety of civil aircraft types 

(which did not include the Jetstream 3100 & 

3200 series aircraft). These reports were 

initially made in the USA, Australia & New 

Zealand. 

Subsequent investigations identified that 

the failed terminals were made from the same 

material specification; MS21260, which calls 

up materials SAE303Se or SAE304 stainless 

steel. It is understood that these corrosion 

resistant steels are susceptible to Stress 

Corrosion Cracking (SCC) in service when 

subject to contamination. 

BAE Systems (Operations) Ltd recognises 

that SAE 303Se and 304 stainless steels are 

used in the primary flight control cable 

terminal of the Jetstream 3100 & 3200 series 

aircraft. 

The Jetstream 3100 & 3200 series aircraft 

feature a single path for the elevator and 

rudder primary control cable circuits. For the 

elevator circuit, a potential unsafe condition 

exists if an elevator cable terminal fails at any 

point in the primary elevator system aft of 

the dual flight controls in the cockpit, 

because this would result in a loss of primary 

elevator control. This is only considered 

unsafe during take-off after V1, where 

sufficient runway may not be available to 

brake the aircraft, or during an approach 

where there is insufficient altitude to recover 

control of the aircraft using the aircraft’s 

elevator trim controls. 

For the rudder circuit, a potential unsafe 

condition exists if a rudder cable terminal 

fails at any point in the primary rudder 

system aft of the dual flight controls in the 

cockpit, because this would result in a loss 

of primary rudder control. This is only 


lotter on DSK11XQN23PROD with PROPOSALS1
Federal Register / Vol. 87, No. 55 / Tuesday, March 22, 2022 / Proposed Rules 16119 

considered unsafe when landing in strong 

crosswinds or after an engine failure during 

take-off and initial climb, where vertical axis 

(yaw) control cannot be maintained using 

rudder trim or asymmetrical power. 

You may examine the MCAI in the 

AD docket at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2022– 

0285. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed British Aerospace 

Jetstream Series 3100 & 3200 Service 

Bulletin 27–JA181040, Original Issue, 

dated January 17, 2019. This service 

information specifies procedures for 

repetitively inspecting all threaded 

turnbuckle type control cable end 

terminals on certain part-numbered 

rudder and elevator primary flight 

control circuits for signs of corrosion, 

pitting, and cracking on the terminal 

fitting, and specifies replacing an 

affected cable assembly when the 

inspection results require it. 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. 

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 require 

accomplishing the actions specified in 

the service information already 

described. 

Differences Between This Proposed AD 

and the MCAI 

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. 

Although the service information 

specifies reporting inspection results to 

the manufacturer, this proposed AD 

would not require that action. 

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 ............................... 4 work-hours × $85 per hour 

= $340.

Not applicable ... $340 per inspection cycle ..... $6,120 per inspection cycle. 

The FAA estimates the following 

costs to replace a cable assembly based 

on the results of the proposed 

inspection. The FAA has no way of 

determining the number of airplanes 

that might need this action: 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per 

airplane 

Replacement of cable assembly .................................. 10 work-hours × $85 per hour = $850 ......................... $5,000 $5,850 

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 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. 


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16120 Federal Register / Vol. 87, No. 55 / Tuesday, March 22, 2022 / Proposed Rules 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

British Aerospace (Operations) Limited and 

British Aerospace Regional Aircraft: 

Docket No. FAA–2022–0285; Project 

Identifier MCAI–2021–01448–A. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by May 6, 2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to British Aerospace 

(Operations) Limited Model Jetstream Model 

3101 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 2720, Rudder Control System, and 

2730, Elevator Control System. 

(e) Unsafe Condition 

This AD was prompted by mandatory 

continuing airworthiness information (MCAI) 

originated by an aviation authority of another 

country to identify and correct an unsafe 

condition on an aviation product. The MCAI 

identifies the unsafe condition as stress 

corrosion cracking of the primary flight 

control cable terminal. The FAA is issuing 

this AD to detect and correct corrosion, 

pitting, or cracking in the primary flight 

control cable terminals. The unsafe 

condition, if not addressed, could result in 

failure of the primary flight control cable 

terminal and loss of airplane control. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) Before any primary rudder or primary 

elevator flight control circuit cable 

accumulates 16 years since first installation 

on an airplane or within 12 months after the 

effective date of this AD, whichever occurs 

later, and thereafter at intervals not to exceed 

24 months, inspect all threaded turnbuckle 

type control cable terminals for signs of 

corrosion, pitting, and cracking by following 

paragraph (2) in Section 2.B. Part 1 and 

Section 2.B. Part 2 of the Accomplishment 

Instructions in British Aerospace Jetstream 

Series 3100 & 3200 Service Bulletin 27– 

JA181040, Original Issue, dated January 17, 

2019 (SB 27–JA181040). If the age of any 

primary rudder or primary elevator flight 

control circuit cable is unknown, do the 

inspection within 12 months after the 

effective date of this AD and thereafter at 

intervals not to exceed 24 months. 

(2) If, during any inspection required by 

paragraph (g)(1) of this AD, there is pitting 

or cracking or corrosion that exceeds 

minimum damage limits, before further 

flight, replace the affected cable assembly 

with a new (zero hours time-in-service) cable 

assembly. 

(3) Replacing a cable assembly does not 

terminate the inspections required by this 

AD. After replacing a cable assembly, do the 

inspection in paragraph (g)(1) of this AD 

before the cable assembly accumulates 15 

years since first installation on an airplane 

and thereafter at intervals not to exceed 24 

months. 

(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–2021–0017, dated December 21, 2021, 

for more information. You may examine the 

CAA AD in the AD docket at https://

www.regulations.gov by searching for and 

locating Docket No. FAA–2022–0285. 

(3) For service information identified in 

this AD, contact BAE Systems (Operations) 

Ltd., Customer Information Department, 

Prestwick International Airport, Ayrshire, 

KA9 2RW, Scotland, United Kingdom; 

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

675704; email: RApublications@

baesystems.com; website: https://

www.baesystems.com/businesses/ 

regionalaircraft/. You may view this service 

information at the FAA, Airworthiness 

Products Section, Operational Safety Branch, 

901 Locust, Kansas City, MO 64106. For 

information on the availability of this 

material at the FAA, call (817) 222–5110. 

Issued on March 11, 2022. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–05673 Filed 3–21–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0281; Project 

Identifier MCAI–2021–01315–R] 

RIN 2120–AA64 

Airworthiness Directives; Leonardo 

S.p.a. Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for 

certain Leonardo S.p.a. Model A109S 

and AW109SP helicopters. This 

proposed AD was prompted by a report 

of a protective sheath, installed around 

a fixed flight control rod, which should 

have been removed during assembly. 

This proposed AD would require 

borescope inspecting certain parts, and 

removing any foreign object if detected, 

as specified in a European Union 

Aviation Safety Agency (EASA) AD, 

which is proposed for incorporation by 

reference (IBR). 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 6, 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 EASA material that is proposed 

for IBR in this AD, contact EASA, 

Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 

8999 000; email ADs@easa.europa.eu; 

internet www.easa.europa.eu. You may 

find the EASA material on the EASA 

website at https://ad.easa.europa.eu. 

You may view this material at the FAA, 

Office of the Regional Counsel, 

Southwest Region, 10101 Hillwood 

Pkwy., Room 6N–321, Fort Worth, TX 

76177. For information on the 

availability of this material at the FAA, 

call (817) 222–5110. This material is 


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