46374 Federal Register / Vol. 83, No. 178 / Thursday, September 13, 2018 / Rules and Regulations 

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 (AD): 

2018–17–24 Airbus SAS: Amendment 39– 

19378; Docket No. FAA–2018–0506; 

Product Identifier 2018–NM–045–AD. 

(a) Effective Date 

This AD is effective October 18, 2018. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Airbus SAS Model 

A350–941 airplanes certificated in any 

category, all manufacturer serial numbers, 

except those on which Airbus Modification 

106695 (or retrofit Modification 110281) and 

Modification 107824 (or retrofit Modification 

107877 and retrofit Modification 108494) 

have been embodied in production. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 53, Fuselage; 55, Stabilizers. 

(e) Reason 

This AD was prompted by the discovery of 

inadequate corrosion protection in certain 

areas of the horizontal stabilizer and the rear 

fuselage cone structure. We are issuing this 

AD to prevent reduced structural integrity of 

the horizontal stabilizer and the rear fuselage 

cone structure. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Definitions 

(1) For the purpose of this AD, Group 1 

airplanes are those with manufacturer serial 

numbers (MSNs) listed in Section 1.A., 

‘‘Applicability’’ of Airbus Service Bulletin 

A350–53–P029, dated November 17, 2017. 

(2) For the purpose of this AD, Group 2 

airplanes are those with MSNs listed in 

Section 1.A., ‘‘Applicability’’ of Airbus 

Service Bulletin A350–55–P003, dated 

November 6, 2017. 

(h) Modification 

(1) For Group 1 airplanes: Before exceeding 

36 months since the date of issuance of the 

original standard airworthiness certificate or 

date of issuance of the original export 

certificate of airworthiness, or within 90 days 

after the effective date of this AD, whichever 

occurs later, apply sealant and protective 

treatment on the affected areas of the rear 

fuselage cone structure, as defined in, and in 

accordance with the Accomplishment 

Instructions of Airbus Service Bulletin A350– 

53–P029, dated November 17, 2017. 

(2) For Group 2 airplanes: Before exceeding 

36 months since the date of issuance of the 

original standard airworthiness certificate or 

date of issuance of the original export 

certificate of airworthiness, or within 90 days 

after the effective date of this AD, whichever 

occurs later, accomplish concurrently the 

actions specified in paragraphs (h)(2)(i) and 

(h)(2)(ii) of this AD, in accordance with the 

Accomplishment Instructions of Airbus 

Service Bulletin A350–55–P003, dated 

November 6, 2017. 

(i) Apply sealant and protective treatment 

on the affected areas of the horizontal 

stabilizer, as defined in Airbus Service 

Bulletin A350–55–P003, dated November 6, 

2017. 

(ii) Modify the trimmable horizontal 

stabilizer (THS) torsion box in zone 330 and 

340, and re-identify the elevator in zone 335 

and 345. 

(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 

Airbus SAS’s EASA Design Organization 

Approval (DOA). If approved by the DOA, 

the approval must include the DOAauthorized signature. 

(3) Required for Compliance (RC): If any 

service information contains procedures or 

tests that are identified as RC, those 

procedures and tests must be done to comply 

with this AD; any procedures or tests that are 

not identified as RC are recommended. Those 

procedures and tests that are not identified 

as RC may be deviated from using accepted 

methods in accordance with the operator’s 

maintenance or inspection program without 

obtaining approval of an AMOC, provided 

the procedures and tests identified as RC can 

be done and the airplane can be put back in 

an airworthy condition. Any substitutions or 

changes to procedures or tests identified as 

RC require approval of an AMOC. 

(j) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) EASA AD 

2018–0036, dated February 7, 2018, 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–2018–0506. 

(2) For more information about this AD, 

contact Kathleen Arrigotti, Aerospace 

Engineer, International Section, Transport 

Standards Branch, FAA, 2200 South 216th 

St., Des Moines, WA 98198; telephone and 

fax 206–231–3218. 

(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) Airbus Service Bulletin A350–53–P029, 

dated November 17, 2017. 

(ii) Airbus Service Bulletin A350–55–P003, 

dated November 6, 2017. 

(3) For service information identified in 

this AD, contact Airbus SAS, Airworthiness 

Office—EAL, Rond-Point Emile Dewoitine 

No: 2, 31700 Blagnac Cedex, France; 

telephone +33 5 61 93 36 96; fax +33 5 61 

93 45 80; email continuedairworthiness.a350@airbus.com; internet 

http://www.airbus.com. 

(4) You may view this service information 

at the FAA, Transport Standards 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, call 

202–741–6030, or go to: http://www.archives.

gov/federal-register/cfr/ibr-locations.html. 

Issued in Des Moines, Washington, on 

August 17, 2018. 

Michael Kaszycki, 

Acting Director, System Oversight Division, 

Aircraft Certification Service. 

[FR Doc. 2018–19749 Filed 9–12–18; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2018–0765; Product 

Identifier 2018–NM–105–AD; Amendment 

39–19379; AD 2018–17–25] 

RIN 2120–AA64 

Airworthiness Directives; Airbus SAS 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for all 

Airbus SAS Model A350–941 and –1041 

airplanes. This AD was prompted by 

reports of uncommanded motion of the 

flight control actuator. This AD requires 

replacing certain rudder and elevator 

servocontrols with serviceable 


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Federal Register / Vol. 83, No. 178 / Thursday, September 13, 2018 / Rules and Regulations 46375 

servocontrols. We are issuing this AD to 

address the unsafe condition on these 

products. 

DATES: This AD becomes effective 

September 28, 2018. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of September 28, 2018. 

We must receive comments on this 

AD by October 29, 2018. 

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 

http://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: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE, 

Washington, DC, between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this final rule, contact Airbus SAS, 

Airworthiness Office—EAL, Rond-Point 

Emile Dewoitine No: 2, 31700 Blagnac 

Cedex, France; telephone +33 5 61 93 36 

96; fax +33 5 61 93 45 80; email 

continued-airworthiness.a350@

airbus.com; internet http://

www.airbus.com. You may view this 

referenced service information at the 

FAA, Transport Standards 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 

http://www.regulations.gov by searching 

for and locating Docket No. FAA–2018– 

0765. 

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–2018– 

0765; or in person at the Docket 

Operations office 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 Operations office (telephone 

800–647–5527) is in the ADDRESSES

section. Comments will be available in 

the AD docket shortly after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Kathleen Arrigotti, Aerospace Engineer, 

International Section, Transport 

Standards Branch, FAA, 2200 South 

216th St., Des Moines, WA 98198; 

telephone and fax 206–231–3218. 

SUPPLEMENTARY INFORMATION: 

Discussion 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2018– 

0145R3, dated July 24, 2018 (referred to 

after this as the Mandatory Continuing 

Airworthiness Information, or ‘‘the 

MCAI’’), to correct an unsafe condition 

for all Airbus SAS Model A350–941 and 

–1041 airplanes. The MCAI states: 

Two occurrences were reported of flight 

control actuator uncommanded motion on 

Airbus A350 aeroplanes. Further 

investigations performed by the servocontrol 

manufacturer (MOOG Aircraft Group) 

revealed that both events were caused by 

foreign object debris blocking a receiver port 

inside the Electro Hydraulic Servo Valve 

(EHSV), which is a component fitted on the 

servocontrol. In both cases, materials found 

in the EHSV first stage were consistent with 

debris generated by rework activity during 

manufacturing process. 

This condition, if not corrected, could lead 

to an uncommanded flight control actuator 

movement, or an unresponsive flight control 

actuator while in active mode, possibly 

resulting in reduced control of the aeroplane. 

To address this potential unsafe condition, 

Airbus issued the AOT [Alert Operators 

Transmission A27P012–18], identifying the 

affected parts and providing instructions to 

remove the affected parts from service. 

For the reasons described above, EASA 

issued AD 2018–0145 (later revised) to 

require replacement of the affected parts with 

serviceable parts. 

Since EASA AD 2018–0145R2 was issued, 

it was determined that the information 

concerning the markings on a servocontrol 

after in-shop rework/modification (see 

Definitions, serviceable part) were not 

entirely correct. This [EASA] AD is revised 

accordingly to make the necessary correction. 

You may examine the MCAI on the 

internet at http://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2018–0765. 

Related Service Information Under 1 

CFR Part 51 

Airbus SAS has issued Alert 

Operators Transmission A27P012–18, 

Rev 01, dated May 29, 2018, including 

Appendixes 1 through 6. This service 

information describes procedures for 

replacing affected servocontrols with 

serviceable servocontrols. 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. 

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 our 

bilateral agreement with the State of 

Design Authority, we have been notified 

of the unsafe condition described in the 

MCAI and service information 

referenced above. We are issuing this 

AD because we evaluated all pertinent 

information and determined the unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

Requirements of This AD 

This AD requires accomplishing the 

actions specified in the service 

information described previously. 

FAA’s Determination of the Effective 

Date 

An unsafe condition exists that 

requires the immediate adoption of this 

AD. The FAA has found that the risk to 

the flying public justifies waiving notice 

and comment prior to adoption of this 

rule because the unsafe condition could 

lead to uncommanded flight control 

actuator movement, or an unresponsive 

flight control actuator while in active 

mode, possibly resulting in reduced 

controllability of the airplane. 

Therefore, we determined that notice 

and opportunity for public comment 

before issuing this AD are impracticable 

and that good cause exists for making 

this amendment effective in fewer than 

30 days. 

Comments Invited 

This AD is a final rule that involves 

requirements affecting flight safety, and 

we did not precede it by notice and 

opportunity for public comment. We 

invite you to send any written relevant 

data, views, or arguments about this AD. 

Send your comments to an address 

listed under the ADDRESSES section. 

Include ‘‘Docket No. FAA–2018–0765; 

Product Identifier 2018–NM–105–AD’’ 

at the beginning of your comments. We 

specifically invite comments on the 

overall regulatory, economic, 

environmental, and energy aspects of 

this AD. We will consider all comments 

received by the closing date and may 

amend this AD based on those 

comments. 

We will post all comments we 

receive, without change, to http://

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact we receive 

about this AD. 


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46376 Federal Register / Vol. 83, No. 178 / Thursday, September 13, 2018 / Rules and Regulations 

Costs of Compliance 

We estimate that this AD affects 11 

airplanes of U.S. registry. We estimate 

the following costs to comply with this 

AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per product Cost on U.S. 

operators 

Up to 15 work-hours × $85 per hour = $1,275 ............... Up to $548,876 .................. Up to $550,151 .................. Up to $6,051,661. 

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 adding 

the following new airworthiness 

directive (AD): 

2018–17–25 Airbus SAS: Amendment 39– 

19379; Docket No. FAA–2018–0765; 

Product Identifier 2018–NM–105–AD. 

(a) Effective Date 

This AD becomes effective September 28, 

2018. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Airbus SAS Model 

A350–941 and –1041 airplanes, certificated 

in any category, all manufacturer serial 

numbers. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 27, Flight Controls. 

(e) Reason 

This AD was prompted by reports of 

uncommanded motion of the flight control 

actuator. We are issuing this AD to address 

blocked receiver ports on certain 

servocontrols installed on the elevators and 

rudders. This condition, if not corrected, 

could lead to an uncommanded flight control 

actuator movement, or an unresponsive flight 

control actuator while in active mode, 

possibly resulting in reduced controllability 

of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Definitions 

For the purposes of this AD the following 

definitions apply: 

(1) Affected part: A servocontrol having a 

part number and serial number specified in 

Appendix 2 of Airbus Alert Operators 

Transmission (AOT) A27P012–18, Rev 01, 

dated May 2018. 

(2) Serviceable part: A servocontrol having 

a part number and serial number not 

specified in Appendix 2 of Airbus Alert 

Operators Transmission (AOT) A27P012–18, 

Rev 01, dated May 2018; or an affected part 

that was reworked or modified in-shop and 

identified by ‘‘27–06’’ (rudder servocontrol) 

or ‘‘27–04’’ (elevator servocontrol) marked 

after the serial number of the servocontrol; or 

an affected part that has been modified on 

the airplane by replacing the servo module in 

accordance with the instructions of Airbus 

Alert Operators Transmission (AOT) 

A27P012–18, Rev 01, dated May 2018, 

including Appendixes 2 through 6. 

(3) Groups: Group 1 airplanes have any 

affected part installed. Group 2 airplanes do 

not have any affected part installed. 

(4) Flight hours: The flight hours indicated 

in table 1 to paragraphs (g)(4) and (h) of this 

AD are those accumulated by an affected part 

since its first installation on an airplane. In 

case these flight hours are unknown, the 

flight hours accumulated by the affected 

elevator or rudder since its first installation 

on an airplane apply. 


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Federal Register / Vol. 83, No. 178 / Thursday, September 13, 2018 / Rules and Regulations 46377 

TABLE 1 TO PARAGRAPHS (g)(4) AND (h) OF THIS AD—SERVOCONTROLS REPLACEMENT

Flight hours (FH) 

accumulated Compliance time 

Fewer than 1,200 FH ........... Before exceeding 1,200 FH, or within 30 days after the effective date of this AD, whichever occurs later. 

1,200 FH or more ................. Within 9 months after the effective date of this AD. 

(h) Replacement 

For Group 1 airplanes: Within the 

applicable compliance time specified in table 

1 to paragraphs (g)(4) and (h) of this AD, 

replace each affected part with a serviceable 

part, in accordance with the instructions in 

Airbus Alert Operators Transmission (AOT) 

A27P012–18, Rev 01, dated May 2018, 

including Appendixes 2 through 6. 

(i) No Reporting Requirement 

Although Airbus Alert Operators 

Transmission (AOT) A27P012–18, Rev 01, 

dated May 2018, specifies to submit certain 

information to the manufacturer and refers to 

Appendix 1 of Airbus Alert Operators 

Transmission (AOT) A27P012–18, Rev 01, 

dated May 2018, this AD does not include 

that requirement. 

(j) Parts Installation Prohibition 

For Group 1 and Group 2 airplanes: As of 

the effective date of this AD, no person may 

install on any airplane an affected part as 

defined in paragraph (g)(1) of this AD, unless 

it is a serviceable part as defined in 

paragraph (g)(2) of this AD. 

(k) 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 (l)(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 

Airbus SAS’s EASA Design Organization 

Approval (DOA). If approved by the DOA, 

the approval must include the DOAauthorized signature. 

(3) Required for Compliance (RC): If any 

service information contains procedures or 

tests that are identified as RC, those 

procedures and tests must be done to comply 

with this AD; any procedures or tests that are 

not identified as RC are recommended. Those 

procedures and tests that are not identified 

as RC may be deviated from using accepted 

methods in accordance with the operator’s 

maintenance or inspection program without 

obtaining approval of an AMOC, provided 

the procedures and tests identified as RC can 

be done and the airplane can be put back in 

an airworthy condition. Any substitutions or 

changes to procedures or tests identified as 

RC require approval of an AMOC. 

(l) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) EASA AD 

2018–0145R3, dated July 24, 2018, 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–2018–0765. 

(2) For more information about this AD, 

contact Kathleen Arrigotti, Aerospace 

Engineer, International Section, Transport 

Standards Branch, FAA, 2200 South 216th 

St., Des Moines, WA 98198; telephone and 

fax 206–231–3218. 

(3) For service information identified in 

this AD, contact Airbus SAS, Airworthiness 

Office—EAL, Rond-Point Emile Dewoitine 

No: 2, 31700 Blagnac Cedex, France; 

telephone +33 5 61 93 36 96; fax +33 5 61 

93 45 80; email continuedairworthiness.a350@airbus.com; internet 

http://www.airbus.com. You may view this 

service information at the FAA, Transport 

Standards Branch, 2200 South 216th St., Des 

Moines, WA. For information on the 

availability of this material at the FAA, call 

206–231–3195. 

(m) 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) Airbus Alert Operators Transmission 

A27P012–18, Rev 01, dated May 29, 2018, 

including Appendixes 1 through 6. 

(ii) Reserved. 

(3) For service information identified in 

this AD, contact Airbus SAS, Airworthiness 

Office—EAL, Rond-Point Emile Dewoitine 

No: 2, 31700 Blagnac Cedex, France; 

telephone +33 5 61 93 36 96; fax +33 5 61 

93 45 80; email continuedairworthiness.a350@airbus.com; internet 

http://www.airbus.com. 

(4) You may view this service information 

at the FAA, Transport Standards 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, call 

202–741–6030, or go to: http://

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

Issued in Des Moines, Washington, on 

August 17, 2018. 

Michael Kaszycki, 

Acting Director, System Oversight Division, 

Aircraft Certification Service. 

[FR Doc. 2018–19744 Filed 9–12–18; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2018–0271; Product 

Identifier 2017–NM–111–AD; Amendment 

39–19396; AD 2018–18–17] 

RIN 2120–AA64 

Airworthiness Directives; Saab AB, 

Saab Aeronautics (Formerly Known as 

Saab AB, Saab Aerosystems) 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are superseding 

Airworthiness Directive (AD) 2016–13– 

06, which applied to certain Saab AB, 

Saab Aeronautics Model 340A (SAAB/ 

SF340A) and SAAB 340B airplanes. AD 

2016–13–06 required a revision of the 

applicable airplane flight manual 

(AFM), repetitive inspections of the 

horizontal stabilizer de-icing boots, and 

applicable corrective actions. This AD 

continues to require a revision of the 

applicable AFM, repetitive inspections 

of the horizontal stabilizer de-icing 

boots, and applicable corrective actions. 

This AD also requires replacement of 

single stitched de-icing boots with 

improved double stitched boots, and reidentification of the modified horizontal 

stabilizer leading edge. This AD was 

prompted by reports of ruptured 

horizontal stabilizer de-icing boots. We 

are issuing this AD to address the unsafe 

condition on these products. 

DATES: This AD is effective October 18, 

2018. 


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