Document Headings

                    Document headings vary by document type but may contain                    the following:                  
                -                       the agency or agencies that issued and signed a document                    
                -                       the number of the CFR title and the number of each part                      the document amends, proposes to amend, or is directly                      related to                    
                -                       the agency docket number / agency internal file number                    
                -                       the RIN which identifies each regulatory action listed in                      the Unified Agenda of Federal Regulatory and Deregulatory                      Actions                    

                    See the                                          Document Drafting Handbook                                        for more details.                  

###### Department of Transportation

###### Federal Aviation Administration

          - 14 CFR Part 39
          - [Docket No. FAA-2018-0365; Product Identifier 2017-NM-155-AD; Amendment 39-19399; AD 2018-18-20]
          - RIN 2120-AA64

# AGENCY:

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

# ACTION:

Final rule.

# SUMMARY:

We are adopting a new airworthiness directive (AD) for all Airbus SAS Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300-600 series airplanes); and Model A310 series airplanes. This AD was prompted by a determination that more restrictive maintenance requirements and airworthiness limitations are necessary. This AD requires revising the maintenance or inspection program, as applicable, to incorporate new or more restrictive maintenance requirements and airworthiness limitations. We are issuing this AD to address the unsafe condition on these products.

# DATES:

This AD is effective October 23, 2018. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of October 23, 2018.

# ADDRESSES:

                        For service information identified in this final rule, contact Airbus SAS, Airworthiness Office—EAW, Rond-Point Emile Dewoitine No: 2, 31700 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 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-2018-0365.                    

## 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-2018-0365; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this final rule, the regulatory evaluation, any comments received, and other information. The address for Docket Operations (phone: 800-647-5527) is in the                     **ADDRESSES**                     section. Comments will be available in the AD docket shortly after receipt.                

# FOR FURTHER INFORMATION CONTACT:

Dan Rodina, Aerospace Engineer, International Section, Transport Standards Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone and fax 206-231-3225.

# 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 all Airbus SAS Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300-600 series airplanes); and Model A310 series airplanes. The NPRM published in the                     **Federal Register**                     on May 14, 2018 (83 FR 22222). The NPRM was prompted by a determination that more restrictive maintenance requirements and airworthiness limitations are necessary. The NPRM proposed to require revising the maintenance or inspection program, as applicable, to incorporate new or more restrictive maintenance requirements and airworthiness limitations.                

We are issuing this AD to address safety-significant latent failures that would, in combination with one or more other specific failures or events, result in a hazardous or catastrophic failure condition of avionics, hydraulic systems, fire detection systems, fuel systems, or other critical systems.

The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Union, has issued EASA AD 2017-0203, dated October 12, 2017 (referred to after this as the Mandatory Continuing Airworthiness Information, or “the MCAI”), to correct an unsafe condition for all Airbus SAS Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300-600 series airplanes); and Model A310 series airplanes. The MCAI states:

Maintenance requirements and airworthiness limitations for the Airbus A310, A300-600 and A300-600ST family aeroplanes, which are approved by EASA, are currently defined and published in the Airbus A310 and A300-600 Airworthiness Limitations Section (ALS) documents. Certification Maintenance Requirements (CMR) for the Airbus A310 and A300-600, which are approved by EASA, are specified in the Airbus A310 and A300-600 (including A300-600ST) ALS Part 3 documents. These instructions have been identified as mandatory for continuing airworthiness.

Failure to accomplish these instructions could result in an unsafe condition.

EASA previously issued [EASA] AD 2013-0072 [which corresponds to FAA AD 2015-08-06, Amendment 39-18142 (80 FR 23230, April 27, 2015) (“AD 2015-08-06”)] to require the implementation of the maintenance requirements and associated airworthiness limitations as specified in Airbus A310 and A300-600 ALS Part 3 documents at original issue.

Since that [EASA] AD was issued, new or more restrictive maintenance requirements and airworthiness limitations were approved by EASA. Consequently, Airbus published Revision 01 of the A310 ALS Part 3 and A300-600 ALS Part 3, compiling all ALS Part 3 changes approved since original issue.

For the reason described above, this [EASA] AD retains the requirements of EASA AD 2013-0072, which is superseded, and requires accomplishment of the actions specified in A310 ALS Part 3 Revision 01 and A300-600 ALS Part 3 Revision 01.

This AD requires revising the maintenance or inspection program to incorporate certain maintenance requirements and airworthiness limitations. The unsafe condition involves safety-significant latent failures that would, in combination with one or more other specific failures or events, result in a hazardous or catastrophic failure condition of avionics, hydraulic systems, fire detection systems, fuel systems, or other critical systems.

                    You may examine the MCAI in the AD docket on the internet at                     *http://www.regulations.gov*                     by searching for and locating Docket No. FAA-2018-0365.                

## Comments

We gave the public the opportunity to participate in developing this final rule. We have considered the comment received. FedEx Express indicated its support for the NPRM.

## Request To Release Related ADs at the Same Time

                    Airbus requested that we release this final rule at the same time as the following related ADs to provide clarity to operators. All four pending ADs are related to the removal of the same 15 nose landing gear parts from ALS Part 1, on different airplane models.                          ( print page 47043)    
    - Docket No. FAA-2018-0390, Product Identifier 2017-NM-130-AD (EASA AD 2017-0145, dated August 31, 2017).
    - Docket No. FAA-2018-0364, Product Identifier 2017-NM-154-AD (EASA AD 2017-0204, dated October 12, 2017).
    - Docket No. FAA-2018-0396, Product Identifier 2017-NM-156-AD (EASA AD 2017-0202, dated October 12, 2017).

We agree with the request. While we cannot ensure that all four final rules will be published on the same date, we will coordinate with the Office of the Federal Register (OFR) and attempt to issue all four final rules at the same time.

## Conclusion

We reviewed the relevant data, considered the comments received, and determined that air safety and the public interest require adopting this final rule with the change described previously and minor editorial changes. We have determined that these minor changes:
    - Are consistent with the intent that was proposed in the NPRM for addressing the unsafe condition; and
    - Do not add any additional burden upon the public than was already proposed in the NPRM.

We also determined that these changes will not increase the economic burden on any operator or increase the scope of this final rule.

## Related Service Information Under 1 CFR Part 51

                    Airbus SAS has issued A300-600 Airworthiness Limitations Section (ALS) Part 3, Certification Maintenance Requirements (CMR), Revision 01, dated August 28, 2017; and A310 Airworthiness Limitations Section (ALS) Part 3, Certification Maintenance Requirements (CMR), Revision 01, dated August 28, 2017. This service information describes mandatory maintenance tasks that operators must perform at specified intervals. These documents are distinct since they apply to different airplane models. 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 127 airplanes of U.S. registry.

We estimate the following costs to comply with this AD:

We have determined that revising the maintenance or inspection program takes an average of 90 work-hours per operator, although this figure may vary from operator to operator. In the past, we have estimated that this action takes 1 work-hour per airplane. Since operators incorporate maintenance or inspection program changes for their affected fleet(s), we have determined that a per-operator estimate is more accurate than a per-airplane estimate. Therefore, we estimate the total cost per operator to be $7,650 (90 work-hours × $85 per work-hour).

## 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 and associated appliances to the Director of the System Oversight Division.

## Regulatory Findings

This AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government.

For the reasons discussed above, I certify that this AD:

(1) Is not a “significant regulatory action” under Executive Order 12866,

(2) 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 

2. The FAA amends § 39.13 by adding the following new airworthiness directive (AD): 

**2018-18-20 Airbus SAS:**                             Amendment 39-19399; Docket No. FAA-2018-0365; Product Identifier 2017-NM-155-AD.                        

## (a) Effective Date

This AD is effective October 23, 2018.

## (b) Affected ADs

This AD affects AD 2015-08-06, Amendment 39-18142 (80 FR 23230, April 27, 2015) (“AD 2015-08-06”).

## (c) Applicability

This AD applies to all Airbus SAS Model A300 B4-601, B4-603, B4-620, and B4-622 airplanes; Model A300 B4-605R and B4-622R airplanes; Model A300 F4-605R and F4-622R airplanes; Model A300 C4-605R Variant F airplanes; and Model A310-203, -204, -221, -222, -304, -322, -324, and -325 airplanes; certificated in any category.

## (d) Subject

Air Transport Association (ATA) of America Code 05, Time Limits/Maintenance Checks.

## (e) Reason

                            This AD was prompted by a determination that more restrictive maintenance requirements and airworthiness limitations are necessary. We are issuing this AD to prevent safety-significant latent failures that would, in combination with one or more other specific failures or events, result in a hazardous or catastrophic failure condition of avionics, hydraulic systems, fire detection systems, fuel systems, or other critical systems.                                  ( print page 47044)    

## (f) Compliance

Comply with this AD within the compliance times specified, unless already done.

## (g) Maintenance or Inspection Program Revision

Within 90 days after the effective date of this AD, revise the maintenance or inspection program, as applicable, to incorporate Airbus A300-600 Airworthiness Limitations Section (ALS) Part 3, Certification Maintenance Requirements (CMR), Revision 01, dated August 28, 2017; or Airbus A310 Airworthiness Limitations Section (ALS) Part 3, Certification Maintenance Requirements (CMR), Revision 01, dated August 28, 2017; as applicable. The initial compliance time for accomplishing the actions is at the applicable time specified in Airbus A300-600 Airworthiness Limitations Section (ALS) Part 3, Certification Maintenance Requirements (CMR), Revision 01, dated August 28, 2017; or Airbus A310 Airworthiness Limitations Section (ALS) Part 3, Certification Maintenance Requirements (CMR), Revision 01, dated August 28, 2017; as applicable; or within 90 days after the effective date of this AD; whichever occurs later.

## (h) No Alternative Actions or Intervals

                            After accomplishment of the revision required by paragraph (g) of this AD, no alternative actions (                            *e.g.,*                             inspections) or intervals, may be used unless the actions or intervals are approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (j)(1) of this AD.                        

## (i) Terminating Action for AD 2015-08-06

Accomplishing the actions required by paragraph (g) of this AD terminates all requirements of AD 2015-08-06.

## (j) 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 (k)(2) of this AD. 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 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 DOA-authorized signature.                        

## (k) Related Information

                            (1) Refer to Mandatory Continuing Airworthiness Information (MCAI) EASA AD 2017-0203, dated October 12, 2017, 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-2018-0365.                        

(2) For more information about this AD, contact Dan Rodina, Aerospace Engineer, International Section, Transport Standards Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone and fax 206-231-3225.

## (l) Material Incorporated by Reference

(1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.

(2) You must use this service information as applicable to do the actions required by this AD, unless this AD specifies otherwise.

(i) Airbus A300-600 Airworthiness Limitations Section (ALS) Part 3, Certification Maintenance Requirements (CMR), Revision 01, dated August 28, 2017.

(ii) Airbus A310 Airworthiness Limitations Section (ALS) Part 3, Certification Maintenance Requirements (CMR), Revision 01, dated August 28, 2017.

                            (3) For service information identified in this AD, contact Airbus SAS, Airworthiness Office—EAW, Rond-Point Emile Dewoitine No: 2, 31700 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 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 16, 2018.

Michael Kaszycki,

Acting Director, System Oversight Division, Aircraft Certification Service.

[FR Doc. 2018-19857 Filed 9-17-18; 8:45 am]

 BILLING CODE 4910-13-P