This section of the FEDERAL REGISTER contains regulatory documents having general applicability and legal effect, most of which are keyed to and codified in the Code of Federal Regulations, which is published under 50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by the Superintendent of Documents. 

# Rules and Regulations Federal Register 

### 18079

Vol. 82, No. 72

Monday, April 17, 2017

**DEPARTMENT OF TRANSPORTATION**

**Federal Aviation Administration**

**14 CFR Part 39**

**[Docket No. FAA–2015–7526; Directorate Identifier 2014–NM–217–AD; Amendment**  **39–18852; AD 2017–08–03]**

**RIN 2120–AA64**

**Airworthiness Directives; Airbus Airplanes** 

**AGENCY :**  Federal Aviation Administration (FAA), Department of Transportation (DOT).

**ACTION :**  Final rule.

**SUMMARY :**  We are adopting a new airworthiness directive (AD) for all Airbus Model A318, A319, A320–211, –212, –214, –231, –232, and –233 airplanes, and A321 series airplanes. This AD was prompted by the discovery of corroded circlips in fuel vent protectors (FVP) having a certain part number. This AD requires an inspection to determine the part number and serial number of the FVP, and replacement if necessary; and application of sealant on certain nuts and bolts of the National Advisory Committee for Aeronautics (NACA) duct assembly. We are issuing this AD to address the unsafe condition on these products.

**DATES :**  This AD is effective May 22,
2017.

The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of May 22, 2017.

**ADDRESSES :**  For service information identified in this final rule, contact Airbus, Airworthiness Office—EIAS, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33 5 61 93 44 51; email account.airworth-eas@airbus.com; Internet http://www.airbus.com. You may view this referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425–227–1221. It is also available on the Internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2015–
7526. 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–2015– 7526; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (telephone 800–647– 5527) is Docket Management Facility, U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590.

**FOR FURTHER INFORMATION CONTACT :**  Sanjay Ralhan, Aerospace Engineer, International Branch, ANM–116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057–3356; telephone 425–227–1405; fax 425–227–1149.

**SUPPLEMENTARY INFORMATION :** 

Discussion

We issued a supplemental notice of proposed rulemaking (SNPRM) to amend 14 CFR part 39 by adding an AD that would apply to all Airbus Model A318, A319, A320–211, –212, –214, –231, –232, and –233 airplanes, and A321 series airplanes. The SNPRM published in the Federal Register on October 21, 2016 (81 FR 72748) (‘‘the SNPRM’’). We preceded the SNPRM with a notice of proposed rulemaking (NPRM) that published in the Federal Register on December 23, 2015 (80 FR 79742) (‘‘the NPRM’’). The NPRM proposed to require an inspection to determine the part number and serial number of the FVP, and replacement if necessary. The NPRM was prompted by the discovery of corroded circlips in FVPs having a certain part number. The SNPRM proposed to require an additional action for sealant application on some nuts and bolts on the NACA duct assembly, and to provide a grace period to the compliance time. We are issuing this AD to detect and correct corroded circlips. Such corrosion could lead to failure of the circlips and consequent movement of the FVP and result in a reduction of the flame protector capability of the FVP cartridge, which could result in damage to the airplane in case of lightning impact or fire on the ground.

The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Union, has issued AD 2016–0114, dated June 15, 2016; corrected June 23, 2016 (referred to after this as the Mandatory Continuing Airworthiness Information, or ‘‘the MCAI’’), to correct an unsafe condition for all Airbus Model A318, A319, A320–211, –212, –214, –231, –232, and –233 airplanes, and A321 series airplanes. The MCAI states:

On each aeroplane wing, a NACA duct assembly is installed, including a Fuel Vent Protector (FVP) which is used as flame arrestor. This FVP is maintained in its NACAduct assembly by a circlip (also known as Cclip). Following a wing water pressure test, the FVP is removed and dried with heat. During an inspection after this test, several circlips were reported to be discoloured. Investigation revealed that a batch of circlips fitted on some FVP Part Number (P/N) 786073–1–0 have an increased risk of corrosion due to a manufacturing quality issue.

This condition, if not detected and corrected, could lead to circlip failure and consequent FVP movement, reducing the flame protector capability of the FVP cartridge, possibly resulting in damage to the aeroplane in case of lightning impact or fire on ground.

Airbus issued Service Bulletin (SB) A320– 28–1221, providing instructions for identification by serial number (s/n) and removal from service of the affected FVP P/ N 786073–1–0, and EASA issued AD 2014– 0234, later revised, to require those actions and to implement installation requirements for the FVP.

After that [EASA] AD was issued, one step in the FVP re-installation instructions was identified as missing. Consequently, Airbus revised SB A320–28–1221 to provide instructions for sealant installation on some nuts and bolts on the NACA duct assembly.

For the reasons described above, this [EASA] AD retains the requirements of EASA AD 2014–0234R1, which is superseded, and requires additional work for aeroplanes already modified in accordance with Airbus SB A320–28–1221 original issue or Revision
01. You may examine the MCAI in the AD docket on the Internet at http:// www.regulations.gov by searching for


### 18080 Federal Register / Vol. 82, No. 72 / Monday, April 17, 2017 / Rules and Regulations

and locating Docket No. FAA–2015–
7526.

Comments

We gave the public the opportunity to participate in developing this AD. We received no comments on the SNPRM or on the determination of the cost to the public.

Conclusion

We reviewed the relevant data and determined that air safety and the public interest require adopting this AD as proposed except for minor editorial changes. We have determined that these minor changes:

• Are consistent with the intent that was proposed in the SNPRM for correcting the unsafe condition; and

• Do not add any additional burden upon the public than was already proposed in the SNPRM.

Related Service Information Under 1 CFR Part 51

Airbus has issued Service Bulletin A320–28–1221, Revision 02, dated January 11, 2016. The service information describes procedures for inspecting the FVP to determine the part number and serial number, replacing any affected FVP, and applying sealant to the nuts and bolts of the NACA duct assembly. This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the

**ADDRESSES** section. Costs of Compliance

We estimate that this AD affects 7 airplanes of U.S. registry. We alsoestimate that it will take about 19 workhours per product to comply with the new basic requirements of this AD. The average labor rate is $85 per work-hour. Required parts will cost about $25,640 per product. Based on these figures, we estimate the cost of this AD on U.S. operators to be $190,785, or $27,255 per product. 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. 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): 2017–08–03 Airbus: Amendment 39–18852; Docket No. FAA–2015–7526; Directorate Identifier 2014–NM–217–AD.

(a) Effective Date

This AD is effective May 22, 2017.

(b) Affected ADs

None.
(c) Applicability

This AD applies to the airplanes specified in paragraphs (c)(1), (c)(2), (c)(3), and (c)(4) of this AD, certificated in any category, all manufacturer serial numbers.

(1) Airbus Model A318–111, –112, –121, and –122 airplanes.

(2) Airbus Model A319–111, –112, –113, –114, –115, –131, –132, and –133 airplanes.

(3) Airbus Model A320–211, –212, –214, –231, –232, and –233 airplanes.

(4) Airbus Model A321–111, –112, –131, –211, –212, –213, –231, and –232 airplanes.
(d) Subject

Air Transport Association (ATA) of America Code 28, Fuel.

(e) Reason

This AD was prompted by the discovery of corroded circlips in fuel vent protectors (FVP) having a certain part number. We are issuing this AD to detect and correct corroded circlips. Such corrosion could lead to failure of the circlips and consequent movement of the FVP and result in a reduction of the flame protector capability of the FVP cartridge, which could result in damage to the airplane in case of lightning impact or fire on the ground.
(f) Compliance

Comply with this AD within the compliance times specified, unless already done.
(g) Inspection of FVP and Corrective Action

For airplanes having a manufacturer serial number specified in figure 1 to paragraphs (g) and (i) of this AD: At the time specified in paragraph (h) of this AD, do an inspection to determine the part number and serial number of the FVP. If the FVP has part number (P/ N) 786073–1–0 with a serial number that is specified in figure 2 to paragraphs (g) and (i) of this AD, and the FVP is not marked ‘‘Amdt B,’’ replace the FVP with a serviceable part, at the time specified in paragraph (h) of this AD, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320– 28–1221, Revision 02, dated January 11, 2016. A review of airplane maintenance records is acceptable in lieu of this inspection if the part number and serial number of the FVP can be conclusively determined from that review.



### F IGURE 

### 1 TO 

### PARAGRAPHS 

### (g) AND 

### (i) OF 

### THIS 

### AD—AFFECTED 

### A IRPLANE 

### MANUFACTURER 

### S ERIAL 

### N UMBERS

5438 5461 5485 through 5488 inclusive 5536 5441 5463 5490 through 5493 inclusive 5539 5444 5464 5495 through 5505 inclusive 5541 5445 5469 5507 through 5515 inclusive 5544


### 18081 Federal Register / Vol. 82, No. 72 / Monday, April 17, 2017 / Rules and Regulations

F IGURE 

### 1 TO 

### PARAGRAPHS 

### (g) AND 

### (i) OF 

### THIS 

### AD—AFFECTED 

### A IRPLANE 

### M ANUFACTURER 

### S ERIAL 

### N UMBERS

### —Continued

5447 5473 through 5478 inclusive 5517 5547 5457 5481 5518 5551 5459 5482 5520 through 5527 inclusive 5553 5460 5483 5530 5556



### F IGURE 

### 2 TO 

### PARAGRAPHS 

### (g) AND 

### (i) OF 

### THIS 

### AD—AFFECTED 

### S ERIAL 

### N UMBERS FOR 

### PART 

### N UMBER 

### 786073–1–0
[Manufactured during August 2012]

**Serial No. 786073IN0xxxx (xxxx indicates the last four digits)**

3752 3821 3868 3911 3966 4010 3753 3826 3871 3914 3967 4011 3754 3827 3874 3922 3969 4013 3755 3829 3877 3925 3971 4017 3756 3830 3878 3927 3972 4019 3757 3833 3882 3930 3977 4023 3758 3834 3893 3937 3978 4024 3759 3836 3897 3938 3980 4025 3760 3839 3898 3940 3981 4026 3761 3840 3899 3945 3982 4039 3787 3848 3900 3946 3983 4048 3788 3849 3901 3947 3984 4065 3810 3850 3904 3948 3985 4066 3812 3851 3905 3951 3986 4068 3814 3853 3906 3961 3987 4070 3817 3859 3907 3962 3996 4184 3819 3860 3908 3964 3997 4187 3820 3867 3910 3965 4009 None

(h) Compliance Times for the Requirements of Paragraph (g) of This AD

Do the actions required by paragraph (g) of this AD at the earliest of the times specified in paragraphs (h)(1), (h)(2), and (h)(3) of this AD, or within 30 days after the effective date of this AD, whichever occurs later.

(1) Before the accumulation of 5,000 total flight cycles after the date of manufacture of the airplane.

(2) Before the accumulation of 7,500 total flight hours after the date of manufacture of the airplane.

(3) Within 30 months after the date of manufacture of the airplane.
(i) Exclusion From Actions Required by Paragraph (g) of This AD

An airplane that does not have a manufacturer serial number specified in figure 1 to paragraphs (g) and (i) of this AD is excluded from the requirements of paragraph (g) of this AD, provided that a FVP having P/N 786073–1–0 with a serial number specified in figure 2 to paragraphs (g) and (i) of this AD has not been installed on that airplane after July 2012. If a FVP having P/ N 786073–1–0 with a serial number specified in figure 2 to paragraphs (g) and (i) of this AD is installed, or the serial number cannot be identified: Within 12 months after the effective date of this AD, replace the FVP with a serviceable part, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320–28–1221, Revision 02, dated January 11, 2016. A review of airplane maintenance records is acceptable if it can be conclusively determined from that review that a FVP having a serial number specified in figure 2 to paragraphs (g) and (i) of this AD has not been installed on that airplane after July 2012. (j) Parts Installation Limitation As of the effective date of this AD, a FVP having P/N 786073–1–0 and a serial number listed in figure 2 to paragraphs (g) and (i) of this AD may be installed on any airplane, provided the FVP is marked with ‘‘Amdt B.’’
(k) Other FAA AD Provisions

The following provisions also apply to this AD:

(1) Alternative Methods of Compliance (AMOCs): The Manager, International Branch, ANM–116, Transport Airplane Directorate, 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 Branch, send it to ATTN: Sanjay Ralhan, Aerospace Engineer, International Branch, ANM–116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057–3356; telephone 425–227–1405; fax 425–227–1149. Information may be emailed to: 9-ANM-116- AMOC-REQUESTS@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 Branch, ANM– 116, Transport Airplane Directorate, FAA; or the European Aviation Safety Agency (EASA); or Airbus’s EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized 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

Refer to Mandatory Continuing Airworthiness Information (MCAI) EASA Airworthiness Directive 2016–0114, dated June 15, 2016; corrected June 23, 2016; for related information. This MCAI may be found in the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA–2015–7526.
(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 Service Bulletin A320–28–1221, Revision 02, dated January 11, 2016.

(ii) Reserved.


### 18082 Federal Register / Vol. 82, No. 72 / Monday, April 17, 2017 / Rules and Regulations

(3) For service information identified in this AD, contact Airbus, Airworthiness Office—EIAS, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33 5 61 93 44 51; email account.airworth-eas@ airbus.com; Internet http://www.airbus.com.

(4) You may view this service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425–227–1221.

(5) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202–741–6030, or go to: http://www.archives.gov/federal-register/cfr/ibrlocations.html.

Issued in Renton, Washington, on March 31, 2017. Michael Kaszycki, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service.
[FR Doc. 2017–07076 Filed 4–14–17; 8:45 am]

**BILLING CODE 4910–13–P**

**DEPARTMENT OF TRANSPORTATION**

**Federal Aviation Administration**

**14 CFR Part 39**

**[Docket No. FAA–2016–9167; Directorate Identifier 2016–NE–20–AD; Amendment 39–**  **18855; AD 2017–08–06]**

**RIN 2120–AA64**

**Airworthiness Directives; General Electric Company Turbofan Engines** 

**AGENCY :**  Federal Aviation Administration (FAA), DOT.

**ACTION :**  Final rule.

**SUMMARY :**  We are adopting a new airworthiness directive (AD) for certain General Electric Company (GE) GE90 turbofan engines. This AD was prompted by a report of an engine and airplane fire. This AD requires replacing affected fuel/oil lube/servo coolers (‘‘main fuel oil heat exchangers’’) with a part eligible for installation. We are issuing this AD to correct the unsafe condition on these products.

**DATES :**  This AD is effective May 22,
2017.

The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of May 22, 2017.

**ADDRESSES :**  For service information identified in this final rule, contact General Electric Company, GE-Aviation, Room 285, 1 Neumann Way, Cincinnati, OH 45215, phone: 513–552–3272; email: aviation.fleetsupport@ge.com. You may view this referenced service information at the FAA, You may view this service information at the FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA. For information on the availability of this material at the FAA, call 781–238–7125. It is also available on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA–2016–
9167. 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–2016– 9167; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the regulatory evaluation, any comments received, and other information. The address for the Docket Office (phone: 800–647–5527) is Document Management Facility, U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590.

**FOR FURTHER INFORMATION CONTACT :**  John Frost, Aerospace Engineer, Engine Certification Office, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781–238–7756; fax: 781–238–7199; email: john.frost@faa.gov.

**SUPPLEMENTARY INFORMATION :** 

Discussion

We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to certain GE GE90 turbofan engines. The NPRM published in the Federal Register on December 7, 2016 (81 FR 88145) (‘‘the NPRM’’). The NPRM was prompted by a report of an engine and airplane fire. The NPRM proposed to require replacing affected fuel/oil lube/servo coolers (‘‘main fuel oil heat exchangers’’) with a part eligible for installation. We are issuing this AD to prevent failure of a main fuel oil heat exchanger, which could result in an engine fire.

Comments

We gave the public the opportunity to participate in developing this AD. The following presents the comments received on the NPRM and the FAA’s response to each comment. Request To Revise Applicability Reference

All Nippon Airways, MTU Maintenance Hannover GmbH (MTU), and Air New Zealand commented that this AD should list all vendor part numbers referenced in GE Service Bulletin (SB) GE90–100 S/B 79–0034, Revision 03, dated August 5, 2016. This would ensure that the applicability of the AD is not misinterpreted.

We agree. We changed this AD by adding a reference in the Applicability paragraph to the respective vendor number after the part number. Request To Clarify Tracking of Accomplishment of AD

MTU commented that clarification of the accomplishment of this AD is needed because GE SB GE90–100 S/B 79–0034, Revision 03, dated August 5, 2016, requires marking repaired parts with the suffix ‘‘A’’ at the end of the serial number but the proposed AD does not. MTU indicated that ‘‘GE fleet highlites’’ note that the suffix is not part of the actual serial number and must not appear on EASA or FAA documents.

We disagree. Although we are not requiring that parts be marked with the suffix ‘‘A’’ to reflect compliance with this AD, these parts are typically marked after repair per the requirements of GE SB GE90–100 S/B 79–0034. Operators are free, however, to devise an alternate tracking system, i.e. through part markings and/or records, to show that the part has been repaired and is eligible for installation. We did not change this AD. Request To Reference Latest Service Bulletin

MTU requested that we change the reference to GE SB GE90–100 S/B 79– 0034, Revision 03, dated August 5, 2016, to the ‘‘latest version’’ of this SB.

We disagree. We cannot require compliance to a document that does not exist. We note that operators may submit a request for an alternate method of compliance if this SB is revised after the publication of this AD. We did not change this AD. Request To Revise References to Main Heat Exchanger

GE requested that references in the AD to the ‘‘main heat exchanger’’ be changed to the ‘‘main fuel oil heat exchanger’’ and/or the ‘‘MFOHE.’’ GE indicated that ‘‘main fuel oil heat exchanger’’ is the term that it uses in communications with its operators.

We agree. We changed references in this AD from ‘‘main heat exchanger’’ to ‘‘main fuel oil heat exchanger.’’ Request To Revise Description of Incident and Unsafe Condition Statement

GE requested that we revise the discussion in the NPRM of the cause of the incident and the unsafe condition