[Federal Register Volume 83, Number 94 (Tuesday, May 15, 2018)]
[Rules and Regulations]
[Pages 22362-22367]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2018-10214]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0071; Product Identifier 2017-NM-063-AD; Amendment 
39-19280; AD 2018-10-05]
RIN 2120-AA64


Airworthiness Directives; Airbus Airplanes

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

[[Page 22363]]


ACTION: Final rule.

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SUMMARY: We are superseding Airworthiness Directive (AD) 2016-23-01, 
which applied to all Airbus Model A310 series airplanes. AD 2016-23-01 
required repetitive detailed inspections for cracking around the 
fastener holes in certain areas of the wing top skin panels, 
supplemental repetitive ultrasonic inspections for cracking around the 
fastener holes in certain other areas of the wing top skin panels, and 
repair if necessary. This AD adds an inspection and modification of the 
fastener holes of the wing top skin panels at a certain area. This AD 
also includes terminating action for certain inspections. This AD was 
prompted by an evaluation by the design approval holder (DAH) which 
indicates that the wing top skin panel fastener holes at a certain area 
are also subject to widespread fatigue damage (WFD). We are issuing 
this AD to address the unsafe condition on these products.

DATES: This AD is effective June 19, 2018.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of June 19, 
2018.
    The Director of the Federal Register approved the incorporation by 
reference of a certain other publication listed in this AD as of 
December 15, 2016 (81 FR 78899, November 10, 2016).

ADDRESSES: For service information identified in this final rule, 
contact Airbus SAS, Airworthiness Office--EAW, 1 Rond Point Maurice 
Bellonte, 31707 Blagnac Cedex, France; telephone: +33 5 61 93 36 96; 
fax: +33 5 61 93 44 51; email: [email protected]; 
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-2018-0071.

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-
0071; 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 (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: 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 to supersede AD 2016-23-01, Amendment 39-18708 (81 FR 78899, 
November 10, 2016) (``AD 2016-23-01''). AD 2016-23-01 applied to all 
Airbus Model A310 series airplanes. The NPRM published in the Federal 
Register on February 8, 2018 (83 FR 5579). The NPRM was prompted by an 
evaluation done by the DAH which indicates that the wing top skin panel 
fastener holes at a certain area are subject to WFD. The NPRM would 
continue to require repetitive detailed inspections for cracking around 
the fastener holes in certain areas of the wing top skin panels, 
supplemental repetitive ultrasonic inspections for cracking around the 
fastener holes in certain other areas of the wing top skin panels, and 
repair if necessary. The NPRM proposed to add an inspection and 
modification of the fastener holes of the wing top skin panels at a 
certain area. The NPRM also includes terminating action for certain 
inspections. We are issuing this AD to detect and correct fatigue 
cracking around the fastener holes, which could result in reduced 
structural integrity of the airplane.
    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Union, has issued EASA AD 
2017-0081, dated May 8, 2017 (referred to after this as the Mandatory 
Continuing Airworthiness Information, or ``the MCAI''), to correct an 
unsafe condition for all Airbus Model A310 series airplanes. The MCAI 
states:

    Following scheduled maintenance, cracks were found around the 
wing top skin panels fastener holes at Rib 2, between Stringer (STG) 
2 and STG14.
    This condition, if not detected and corrected, could reduce the 
structural integrity of the aeroplane.
    To address this issue, Airbus developed an inspection programme, 
and published Service Bulletin (SB) A310-57-2096, providing 
instructions for repetitive detailed inspections (DET) to ensure 
that any visible cracks in the wing top skin panels 1 and 2 along 
Rib 2 are detected on time and repaired appropriately. Consequently, 
EASA issued AD 2008-0211 [which corresponds to FAA AD 2010-04-03, 
Amendment 39-16196 (75 FR 6852, February 12, 2010) (``AD 2010-04-
03)] to require implementation of that inspection programme.
    After that [EASA] AD was issued, Airbus improved the inspection 
programme, revising SB A310-57-2096 accordingly, to include a 
special detailed inspection (SDI), using an ultrasonic method, to 
allow earlier crack detection, to subsequently reduce the scope of 
potential repair action, and to extend the intervals of the 
repetitive inspections.
    Consequently, EASA issued AD 2014-0200 (later revised), 
retaining the requirements of EASA AD 2008-0211, which was 
superseded, and required supplementary repetitive SDI [for cracking] 
of the wing top skin panel 1 and 2 between STG2 and STG10 at Rib 2 
[and repair if needed], as described in Airbus SB A310-57-2096 
Revision 02.
    Since EASA AD 2014-0200R1 was issued, a Widespread Fatigue 
Damage (WFD) analysis concluded that the inspection programme had to 
be extended to include the wing top skin panels at Rib 3 
attachments, and Airbus issued SB A310-57-2096 Revision 03 
accordingly, to provide the necessary instructions. Consequently, 
EASA issued [EASA] AD 2016-0005 [which corresponds to FAA AD 2016-
23-01], retaining the requirements of EASA AD 2014-0200R1, which was 
superseded, and extending the inspection area to include Rib 3.
    In addition to changes to the inspected area, WFD analysis 
identified structural modification points for certain fastener 
holes, located at each attachment from STG2 to STG10, at Ribs 2 and 
3 on both wings.
    Airbus developed modification (mod) 13785 and mod 13786, 
consisting of an SDI, followed by an oversize of the defined holes 
on Ribs 2 and 3 on both wings. Airbus issued SB A310-57-2106 and SB 
A310-57-2107 to provide in-service modification instructions for top 
skin attachments to Rib 2 and Rib 3 respectively. Accomplishment of 
these modifications at the specified time will reset the fatigue 
life of the attachment holes at the top skin attachment to Rib 2 and 
Rib 3 to the Limit of Validity (LOV). Airbus issued inspection SB 
A310-57-2096 Revision 04 to account for the inspection requirements 
post-modification.
    For the reasons describe above, this [EASA] AD retains the 
requirements of EASA AD 2016-0005, which is superseded, requires 
modifications to the top skin attachment holes at Rib 2 and Rib 3, 
and defines the inspection requirements for Rib 2 and Rib 3 after 
modification.

    Modification of the fastener holes at top skin ribs 2 and 3 
constitutes terminating action for certain repetitive special detailed 
inspections. 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-2018-0071.

[[Page 22364]]

Comments

    We gave the public the opportunity to participate in developing 
this AD. We considered the comment received. FedEx supported the NPRM.

Conclusion

    We reviewed the available data, including the comment received, 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 
NPRM for correcting the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

    Airbus has issued the following service information.
     Airbus Service Bulletin A310-57-2096, Revision 04, dated 
December 5, 2016. This service information describes procedures for 
detailed and ultrasonic inspections for cracking around the fastener 
holes of wing top skin panels 1 and 2, at ribs 2 and 3, on the left- 
and right-hand sides of the fuselage.
     Airbus Service Bulletin A310-57-2106, dated November 14, 
2016. This service information describes procedures for a special 
detailed inspection and modification of the fastener holes of wing top 
skin panels 1 and 2, at rib 2.
     Airbus Service Bulletin A310-57-2107, dated November 14, 
2016. This service information describes procedures for a special 
detailed inspection and modification of the fastener holes of wing top 
skin panels 1 and 2, at rib 3.
    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 8 airplanes of U.S. registry.
    The actions required by AD 2016-23-01, and retained in this AD, 
take about 8 work-hours per product, at an average labor rate of $85 
per work-hour. Based on these figures, the estimated cost of the 
actions that are required by AD 2016-23-01 on U.S. operators to be 
$5,440, or $680 per product.
    We also estimate that it takes about 95 work-hours per product to 
comply with the basic requirements of this AD. Required parts will cost 
about $10,200 per product. The average labor rate is $85 per work-hour. 
Based on these figures, we estimate the cost of this AD on U.S. 
operators to be $146,200, or $18,275 per product.
    In addition, we estimate that any necessary modification will take 
about 40 work-hours and require parts costing $10,000, for a cost of 
$13,400 per product. We have no way of determining the number of 
aircraft that might need these actions.

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

0
1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by removing Airworthiness Directive (AD) 
2016-23-01, Amendment 39-18708 (81 FR 78899, November 10, 2016), and 
adding the following new AD:

2018-10-05 Airbus: Amendment 39-19280; FAA-2018-0071; Product 
Identifier 2017-NM-063-AD.

(a) Effective Date

    This AD is effective June 19, 2018.

(b) Affected ADs

    This AD replaces AD 2016-23-01, Amendment 39-18708 (81 FR 78899, 
November 10, 2016) (``AD 2016-23-01'').

(c) Applicability

    This AD applies to all Airbus Model A310-203, -204, -221, -222, 
-304, -322, -324, and -325 airplanes, certificated in any category, 
all manufacturer serial numbers.

(d) Subject

    Air Transport Association (ATA) of America Code 57, Wings.

(e) Reason

    This AD was prompted by an evaluation by the design approval 
holder (DAH) indicating that the wing top skin panel fastener holes 
at ribs 2 and 3 are subject to widespread fatigue damage (WFD). We 
are issuing this AD to detect and correct fatigue cracking around 
the fastener holes, which could result in reduced structural 
integrity of the airplane.

(f) Compliance

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

(g) Retained Repetitive Inspections, With Revised Service Information

    This paragraph restates the requirements of paragraph (g) of AD 
2016-23-01, with revised service information. Except as required by 
paragraph (i) of this AD: Within

[[Page 22365]]

the initial compliance time and thereafter at the repetitive 
intervals specified in paragraphs (h)(1) through (h)(3) of this AD, 
as applicable, accomplish the actions specified in paragraphs (g)(1) 
and (g)(2) of this AD concurrently and in sequence, in accordance 
with the Accomplishment Instructions of Airbus Service Bulletin 
A310-57-2096, Revision 03, dated June 30, 2015, or Revision 04, 
dated December 5, 2016; except as provided by paragraph (j) of this 
AD. As of the effective date of this AD, use only Airbus Service 
Bulletin A310-57-2096, Revision 04, dated December 5, 2016, to 
accomplish the required actions.
    (1) Accomplish a detailed inspection for cracking around the 
fastener holes in the wing top skin panels 1 and 2, along ribs 2 and 
3, between the front and rear spars on the left- and right-hand 
sides of the fuselage.
    (2) Accomplish an ultrasonic inspection for cracking around the 
fastener holes in the wing top skin panels 1 and 2, along ribs 2 and 
3, between stringer (STG) 2 and STG10 on the left- and right-hand 
sides of the fuselage.

(h) Retained Compliance Times for Airplanes Not Previously Inspected, 
With No Changes

    This paragraph restates the requirements of paragraph (h) of AD 
2016-23-01, with no changes.
    (1) For Model A310-203, -204, -221, and -222 airplanes: Do the 
actions required by paragraphs (g)(1) and (g)(2) of this AD at the 
later of the times specified in paragraphs (h)(1)(i) and (h)(1)(ii) 
of this AD. Repeat the inspections specified in paragraphs (g)(1) 
and (g)(2) of this AD thereafter at intervals not to exceed 2,000 
flight cycles or 4,100 flight hours, whichever occurs first.
    (i) Prior to the accumulation of 18,700 flight cycles or 37,400 
flight hours since first flight of the airplane, whichever occurs 
first.
    (ii) Within 30 days after December 15, 2016 (the effective date 
of AD 2016-23-01).
    (2) For Model A310-304, -322, -324, and -325 airplanes having an 
average flight time (AFT) of less than 4 hours: Do the actions 
required by paragraphs (g)(1) and (g)(2) of this AD at the later of 
the times specified in paragraphs (h)(2)(i) and (h)(2)(ii) of this 
AD. Repeat the inspections specified in paragraphs (g)(1) and (g)(2) 
of this AD thereafter at intervals not to exceed 2,000 flight cycles 
or 5,600 flight hours, whichever occurs first.
    (i) Prior to the accumulation of 17,300 flight cycles or 48,400 
flight hours since first flight of the airplane, whichever occurs 
first.
    (ii) Within 30 days after December 15, 2016 (the effective date 
of AD 2016-23-01).
    (3) For Model A310-304, -322, -324, and -325 airplanes having an 
AFT of equal to or more than 4 hours: Do the actions required by 
paragraphs (g)(1) and (g)(2) of this AD at the later of the times 
specified in paragraphs (h)(3)(i) and (h)(3)(ii) of this AD. Repeat 
the inspections specified in paragraphs (g)(1) and (g)(2) of this AD 
thereafter at intervals not to exceed 1,500 flight cycles or 7,500 
flight hours, whichever occurs first.
    (i) Prior to the accumulation of 12,800 flight cycles or 64,300 
flight hours since first flight of the airplane, whichever occurs 
first.
    (ii) Within 30 days after December 15, 2016 (the effective date 
of AD 2016-23-01).

(i) Retained Compliance Times for Airplanes Previously Inspected, With 
Revised Service Information

    This paragraph restates the requirements of paragraph (i) of AD 
2016-23-01, with revised service information. For airplanes 
previously inspected before December 15, 2016 (the effective date of 
AD 2016-23-01), using Airbus Service Bulletin A310-57-2096, dated 
May 6, 2008; Airbus Service Bulletin A310-57-2096, Revision 01, 
dated August 5, 2010; or Airbus Service Bulletin A310-57-2096, 
Revision 02, dated March 5, 2014: At the applicable compliance times 
specified in paragraphs (i)(1), (i)(2), and (i)(3) of this AD, 
accomplish the actions specified in paragraphs (g)(1) and (g)(2) of 
this AD concurrently and in sequence, in accordance with the 
Accomplishment Instructions of Airbus Service Bulletin A310-57-2096, 
Revision 03, dated June 30, 2015, or Revision 04, dated December 5, 
2016. As of the effective date of this AD, use only Airbus Service 
Bulletin A310-57-2096, Revision 04, dated December 5, 2016, to 
accomplish the required actions. Repeat the inspections specified in 
paragraphs (g)(1) and (g)(2) of this AD thereafter at the repetitive 
intervals specified in paragraphs (h)(1), (h)(2), and (h)(3) of this 
AD, as applicable.
    (1) For Model A310-203, -204, -221, and -222 airplanes: Do the 
actions required by paragraphs (g)(1) and (g)(2) of this AD within 
3,500 flight hours or 1,700 flight cycles, whichever occurs first 
since the most recent inspection.
    (2) For Model A310-304, -322, -324, and -325 airplanes having an 
AFT of less than 4 hours: Do the actions required by paragraphs 
(g)(1) and (g)(2) of this AD within 4,600 flight hours or 1,600 
flight cycles, whichever occurs first since the most recent 
inspection.
    (3) For Model A310-304, -322, -324, and -325 airplanes having an 
AFT of equal to or more than 4 hours: Do the actions required by 
paragraphs (g)(1) and (g)(2) of this AD within 6,100 flight hours or 
1,200 flight cycles, whichever occurs first since the most recent 
inspection.

(j) Retained Compliance Times if No Ultrasonic Equipment Is Available, 
With Revised Service Information

    This paragraph restates the requirements of paragraph (j) of AD 
2016-23-01, with revised service information. If no ultrasonic 
equipment is available for the initial or second inspection required 
by paragraph (g) or (h) of this AD, accomplish the detailed 
inspection specified in paragraph (g)(1) of this AD within the 
applicable compliance times specified in paragraphs (j)(1) and 
(j)(2) of this AD. After accomplishing the detailed inspection, do 
the inspections specified in paragraphs (g)(1) and (g)(2) of this AD 
at the applicable compliance times specified by paragraphs (i)(1), 
(i)(2), and (i)(3) of this AD. Subsequently, repeat the inspections 
specified in paragraphs (g)(1) and (g)(2) of this AD thereafter at 
the applicable repetitive intervals specified in paragraphs (h)(1), 
(h)(2), and (h)(3) of this AD.
    (1) For airplanes not previously inspected before December 15, 
2016 (the effective date of AD 2016-23-01), using the service 
information identified in paragraph (j)(2)(i), (j)(2)(ii), 
(j)(2)(iii), or (j)(2)(iv) of this AD: Do the actions required by 
paragraph (g)(1) of this AD within the initial compliance time 
specified by paragraphs (h)(1), (h)(2), and (h)(3) of this AD, as 
applicable.
    (2) For airplanes previously inspected before December 15, 2016 
(the effective date of AD 2016-23-01), using the service information 
identified in paragraph (j)(2)(i), (j)(2)(ii), (j)(2)(iii), or 
(j)(2)(iv) of this AD: Do the actions required by paragraph (g)(1) 
of this AD within the applicable compliance times specified in 
paragraphs (i)(1), (i)(2), and (i)(3) of this AD.
    (i) Airbus Service Bulletin A310-57-2096, dated May 6, 2008.
    (ii) Airbus Service Bulletin A310-57-2096, Revision 01, dated 
August 5, 2010.
    (iii) Airbus Service Bulletin A310-57-2096, Revision 02, dated 
March 5, 2014.
    (iv) Airbus Service Bulletin A310-57-2096, Revision 03, dated 
June 30, 2015.

(k) Retained Repair of Cracking, With No Changes

    This paragraph restates the requirements of paragraph (k) of AD 
2016-23-01, with no changes. If any cracking is found during any 
inspection required by paragraph (g), (h), (i), or (j) of this AD, 
before further flight, repair the cracking using a method approved 
by the Manager, International Section, Transport Standards Branch, 
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. Accomplishing 
the repair specified in this paragraph terminates the repetitive 
inspections required by paragraph (g), (h), (i), or (j) of this AD, 
as applicable, for the repaired area only.

(l) Retained Definition of AFT, With No Changes

    This paragraph restates the requirements of paragraph (l) of AD 
2016-23-01, with no changes. For the purposes of this AD, the AFT 
should be established as specified in paragraphs (l)(1), (l)(2), and 
(l)(3) of this AD for the determination of the compliance times.
    (1) The inspection threshold is defined as the total flight 
hours accumulated (counted from take-off to touch-down), divided by 
the total number of flight cycles accumulated at the effective date 
of this AD.
    (2) The initial inspection interval is defined as the total 
flight hours accumulated divided by the total number of flight 
cycles accumulated at the time of the initial inspection threshold.
    (3) The second inspection interval is defined as the total 
flight hours accumulated divided by the total number of flight 
cycles accumulated between the initial and second inspection 
threshold. For all inspection intervals onwards, the average flight 
time is the flight hours divided by the flight cycles accumulated 
between the last two inspections.

[[Page 22366]]

(m) New Requirements of This AD: Rib 2 Inspection and Modification

    At the compliance time specified in paragraph (n) of this AD, as 
applicable, accomplish the actions specified in paragraphs (m)(1) 
and (m)(2) of this AD concurrently and in sequence, in accordance 
with the Accomplishment Instructions of Airbus Service Bulletin 
A310-57-2106, dated November 14, 2016.
    (1) Accomplish a special detailed inspection to determine the 
diameter of the fastener holes in the wing top skin panels 1 and 2, 
at rib 2 of both wings.
    (2) Modify the fastener holes.

(n) New Compliance Times for Rib 2 Inspection and Modification

    (1) For Model A310-203, -204, -221, and -222 airplanes: Do the 
actions required by paragraphs (m)(1) and (m)(2) of this AD at the 
later of the times specified in paragraphs (n)(1)(i) and (n)(1)(ii) 
of this AD.
    (i) Prior to the accumulation of 40,000 flight cycles or 93,300 
flight hours since first flight of the airplane, whichever occurs 
first.
    (ii) Within 30 days after the effective date of this AD.
    (2) For Model A310-304, -322, -324, and -325 airplanes having an 
AFT of less than 4 hours: Do the actions required by paragraphs 
(m)(1) and (m)(2) of this AD at the later of the times specified in 
paragraphs (n)(2)(i) and (n)(2)(ii) of this AD.
    (i) Prior to the accumulation of 40,000 flight cycles or 116,000 
flight hours since first flight of the airplane, whichever occurs 
first.
    (ii) Within 30 days after the effective date of this AD.
    (3) For Model A310-304, -322, -324, and -325 airplanes having an 
AFT of 4 hours or more: Do the actions required by paragraphs (m)(1) 
and (m)(2) of this AD at the later of the times specified in 
paragraphs (n)(3)(i) and (n)(3)(ii) of this AD.
    (i) Prior to the accumulation of 30,000 flight cycles or 150,000 
flight hours since first flight of the airplane, whichever occurs 
first.
    (ii) Within 30 days after the effective date of this AD.

(o) New Requirements of This AD: Rib 3 Inspection and Modification

    At the compliance time specified in paragraph (p) of this AD, as 
applicable, accomplish the actions specified in paragraphs (o)(1) 
and (o)(2) of this AD concurrently and in sequence, in accordance 
with the Accomplishment Instructions of Airbus Service Bulletin 
A310-57-2107, dated November 14, 2016.
    (1) Accomplish a special detailed inspection to determine the 
diameter of the fastener holes in the wing top skin panels 1 and 2, 
at rib 3 of both wings.
    (2) Modify the fastener holes.

(p) New Compliance Times for Rib 3 Inspection and Modification

    (1) For Model A310-203, -204, -221, and -222 airplanes: Do the 
actions required by paragraphs (o)(1) and (o)(2) of this AD at the 
later of the times specified in paragraphs (p)(1)(i) and (p)(1)(ii) 
of this AD.
    (i) Prior to the accumulation of 46,400 flight cycles or 92,900 
flight hours since first flight of the airplane, whichever occurs 
first.
    (ii) Within 30 days after the effective date of this AD.
    (2) For Model A310-304, -322, -324, and -325 airplanes having an 
AFT of less than 4 hours: Do the actions required by paragraphs 
(o)(1) and (o)(2) of this AD at the later of the times specified in 
paragraphs (p)(2)(i) and (p)(2)(ii) of this AD.
    (i) Prior to the accumulation of 45,400 flight cycles or 127,300 
flight hours since first flight of the airplane, whichever occurs 
first.
    (ii) Within 30 days after the effective date of this AD.
    (3) For Model A310-304, -322, -324, and -325 airplanes having an 
AFT of 4 hours or more: Do the actions required by paragraphs (o)(1) 
and (o)(2) of this AD at the later of the times specified in 
paragraphs (p)(3)(i) and (p)(3)(ii) of this AD.
    (i) Prior to the accumulation of 33,800 flight cycles or 169,000 
flight hours since first flight of the airplane, whichever occurs 
first.
    (ii) Within 30 days after the effective date of this AD.

(q) New Corrective Actions

    If any cracking is found during any inspection required by 
paragraph (m), (n), (o), or (p) of this AD, before further flight, 
repair the cracking using a method approved by the Manager, 
International Section, Transport Standards Branch, FAA; or EASA; or 
Airbus's EASA DOA. If approved by the DOA, the approval must include 
the DOA-authorized signature. Accomplishing the repair specified in 
this paragraph terminates the repetitive inspections required by 
paragraph (g), (h), (i), or (j) of this AD, as applicable, for the 
repaired area only.

(r) New Terminating Actions

    (1) Accomplishment of the modification specified in paragraph 
(m) of this AD constitutes terminating action for the repetitive 
special detailed inspections required by paragraph (g)(2) of this AD 
for the modified fastener holes at top skin rib 2 for that airplane. 
After modification, the un-modified fastener holes at top skin rib 2 
between the front and rear spars remain subject to the repetitive 
inspections required by paragraph (g)(1) of this AD.
    (2) Accomplishment of the modification specified in paragraph 
(o) of this AD constitutes terminating action for the repetitive 
special detailed inspections required by paragraph (g)(2) of this AD 
for the modified fastener holes at top skin rib 3 for that airplane. 
After modification, the un-modified fastener holes at top skin rib 3 
between the front and rear spars remain subject to the repetitive 
inspection required by paragraph (g)(1) of this AD.

(s) Other FAA AD Provisions

    (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 (t)(2) of this AD. Information 
may be emailed to: [email protected]. 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: As of the effective date of 
this AD, 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 EASA; or Airbus's EASA 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.

(t) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) EASA AD 2017-0081, dated May 8, 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-2018-0071.
    (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.

(u) 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.
    (3) The following service information was approved for IBR on 
June 19, 2018.
    (i) Airbus Service Bulletin A310-57-2096, Revision 04, dated 
December 5, 2016.
    (ii) Airbus Service Bulletin A310-57-2106, dated November 14, 
2016.
    (iii) Airbus Service Bulletin A310-57-2107, dated November 14, 
2016.
    (4) The following service information was approved for IBR on 
December 15, 2016 (81 FR 78899, November 10, 2016).
    (i) Airbus Service Bulletin A310-57-2096, Revision 03, dated 
June 30, 2015.

[[Page 22367]]

    (ii) Reserved.
    (5) For service information identified in this AD, contact 
Airbus SAS, Airworthiness Office--EAW, 1 Rond Point Maurice 
Bellonte, 31707 Blagnac Cedex, France; telephone: +33 5 61 93 36 96; 
fax: +33 5 61 93 44 51; email: [email protected]; 
internet: http://www.airbus.com.
    (6) 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.
    (7) 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 May 7, 2018.
Michael Kaszycki,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2018-10214 Filed 5-14-18; 8:45 am]
BILLING CODE 4910-13-P


