Document ID: FAA-2014-0529-0011
Agency: faa
Document Type: Rule
Title: Airworthiness Directives: Airbus Airplanes
Posted Date: 2016-03-09T05:00Z

[Federal Register Volume 81, Number 46 (Wednesday, March 9, 2016)]
[Rules and Regulations]
[Pages 12413-12419]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-04577]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2014-0529; Directorate Identifier 2013-NM-260-AD; 
Amendment 39-18420; AD 2016-05-02]
RIN 2120-AA64

Airworthiness Directives; Airbus Airplanes

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

ACTION: Final rule.

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SUMMARY: We are superseding Airworthiness Directive (AD) 2011-13-11 and 
AD 2013-16-09 for all Airbus Model A318, A319, A320, and A321 series 
airplanes. AD 2011-13-11 required an amendment of the airplane flight 
manual (AFM), repetitive checks of specific centralized fault display 
system (CFDS) messages, an inspection of the opening sequence of the 
main landing gear (MLG) door for discrepancies if certain messages are 
found, and corrective actions if necessary. AD 2013-16-09 required an 
inspection to determine airplane configuration and part numbers of the 
landing gear control interface unit and MLG door actuators; and, for 
affected airplanes, repetitive inspections of the opening sequence of 
the MLG door, and replacement of the MLG door actuator if necessary. AD 
2013-16-09 also provided optional terminating action for the repetitive 
inspections. This new AD reduces the interval of the MLG door opening 
sequence inspection, requires replacing or modifying certain MLG door 
actuators, and also requires a flushing procedure to be performed when 
installing a new MLG door actuator. This AD was prompted by a 
determination that the interval of the MLG door opening sequence 
inspection must be reduced. We are issuing this AD to detect and 
correct deterioration of the damping ring and associated retaining ring 
of the MLG door actuator, which can sufficiently increase the friction 
inside the actuator to restrict opening of

[[Page 12414]]

the MLG door by gravity, during operation of the landing gear alternate 
(free-fall) extension system. This condition could prevent the full 
extension and/or down-locking of the MLG, possibly resulting in MLG 
collapse during landing and consequent damage to the airplane and 
injury to occupants.

DATES: This AD becomes effective April 13, 2016.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of April 13, 
2016.
    The Director of the Federal Register approved the incorporation by 
reference of a certain other publication listed in this AD as of August 
23, 2013 (78 FR 48286, August 8, 2013).
    The Director of the Federal Register approved the incorporation by 
reference of a certain other publication listed in this AD as of July 
12, 2011 (76 FR 37241, June 27, 2011).
    The Director of the Federal Register approved the incorporation by 
reference of a certain other publication listed in this AD as of April 
27, 2007 (72 FR 13681, March 23, 2007).

ADDRESSES: You may examine the AD docket on the Internet at http://www.regulations.gov/#!docketDetail;D=FAA-2014-0529; or in person at the 
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.
    For Airbus 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. For General Elec tric service information 
identified in this final rule, contact GE Aviation, Customer Support 
Center, 1 Neumann Way, Cincinnati, OH 45215; phone: 513-552-3272; 
email: cs.techpubs@ge.com; Internet: http://www.geaviation.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-2014-0529.

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 to supersede AD 2011-13-11, Amendment 39-16734 (76 
FR 37241, June 27, 2011) (``AD 2011-13-11''); and AD 2013-16-09, 
Amendment 39-17547 (78 FR 48286, August 8, 2013) (``AD 2013-16-09''). 
AD 2011-13-11 and AD 2013-16-09 applied to all Airbus Model A318, A319, 
A320, and A321 series airplanes. The SNPRM published in the Federal 
Register on September 22, 2015 (80 FR 57122). We preceded the SNPRM 
with a notice of proposed rulemaking (NPRM) that published in the 
Federal Register on August 13, 2014 (79 FR 47395; corrected August 27, 
2014 (79 FR 51117)) (``the NPRM''). The NPRM was prompted by a 
determination that the interval of the MLG door opening sequence 
inspection must be reduced. The NPRM proposed to continue to require an 
amendment of the AFM; repetitive checks of specific CFDS messages; an 
inspection of the opening sequence of the MLG door for discrepancies if 
certain messages are found, and corrective actions if necessary; an 
inspection to determine airplane configuration and part numbers of the 
landing gear control interface unit and MLG door actuators; and, for 
affected airplanes, repetitive inspections of the opening sequence of 
the MLG door, and replacement of the MLG door actuator if necessary; 
and optional terminating action for the repetitive inspections. The 
SNPRM proposed to require a flushing procedure to be performed when 
installing a new MLG door actuator. We are issuing this AD to detect 
and correct deterioration of the damping ring and associated retaining 
ring of the MLG door actuator, which can sufficiently increase the 
friction inside the actuator to restrict opening of the MLG door by 
gravity, during operation of the landing gear alternate (free-fall) 
extension system. This condition could prevent the full extension and/
or down-locking of the MLG and consequent MLG collapse during landing 
and damage to the airplane and injury to occupants.
    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Union, has issued EASA 
Airworthiness Directive 2014-0221, dated September 30, 2014 (referred 
to after this as the Mandatory Continuing Airworthiness Information, or 
``the MCAI''), to correct an unsafe condition on all Airbus Model A318, 
A319, A320, and A321 series airplanes. The MCAI states:

    Some operators reported slow operation of the main landing gear 
(MLG) door opening/closing sequence, leading to the generation of 
[electronic centralized aircraft monitor] ECAM warnings during the 
landing gear retraction or extension sequence.
    Investigations showed that the damping ring and associated 
retaining ring of the MLG door actuator may deteriorate. The 
resultant debris increases the friction inside the actuator which 
can be sufficiently high to restrict opening of the MLG door by 
gravity, during operation of the landing gear alternate (freefall) 
extension system.
    This condition, if not corrected, could prevent the full 
extension and/or down locking of the MLG, possibly resulting in MLG 
collapse during landing or rollout and consequent damage to the 
aeroplane and injury to occupants.
    [An EASA AD] was issued [and later revised] to require 
repetitive inspections of the opening sequence of the MLG door in 
order to identify the affected actuators, and to introduce as an 
optional terminating action Airbus production Modification (mod) 
38274 and associated [Airbus] Service Bulletin (SB) A320-32-1338, 
which incorporate an improved retaining ring, located on the piston 
rod's extension end, and a new piston rod with machined shoulder to 
accommodate the thicker section of the modified retaining ring.
    After in-service introduction of the new MLG door actuator, Part 
Number (P/N) 114122012 (Post-mod 38274--SB A320-32-1338), several 
operators reported failures of internal parts of the MLG door 
actuator. Investigations confirmed that these failures could result 
in slow extension of the actuator rod, delaying the MLG door 
operation, or possibly stopping just before the end of the stroke, 
preventing the door to reach the fully open position.
    [An EASA AD], which superseded EASA AD 2006-0112R1 [http://ad.easa.europa.eu/blob/easa_ad_2006_0112_R1_superseded.pdf/AD_2006-0112R1_1], was issued [and later revised] to require amendment of 
the applicable Airplane Flight Manual (AFM), repetitive checks of 
specific Centralized Fault Display System (CFDS) messages, 
repetitive inspections of the opening sequence of the MLG door 
actuator and, depending on findings, corrective action(s).
    Since EASA AD 2011-0069R1 [http://ad.easa.europa.eu/blob/easa_ad_2011_0069_R1_superseded.pdf/AD_2011-0069R1_1] was issued, 
Airbus introduced a reinforced MLG door actuator P/N 114122014 (mod 
153655). Airbus issued SB A320-32-1407 containing instructions for 
in-service replacement of the affected MLG door actuators, or 
modification of the actuators to the new standard.
    In addition, following a recent occurrence with a gear extension 
problem, the result of additional analyses by Airbus revealed that 
the CFDS expected specific messages may

[[Page 12415]]

not be generated and as a result, repetitive checks of messages are 
not effective for aeroplanes fitted with landing gear control 
interface unit (LGCIU) interlink communication ARINC 429 (applied in 
production through Airbus mod 39303, or in service through Airbus SB 
A320-32-1409), in combination with LGCIUs 80-178-02-88012 or 80-178-
03-88013 in both positions and at least one MLG door actuator pre-
mod 153655 (pre-Airbus SB A320-32-1407--pre-GE SB 114122-32-105) 
installed.
    Prompted by these findings, EASA issued Emergency AD 2013-0132-E 
[http://ad.easa.europa.eu/blob/easa_ad_2013_0132_E_superseded.pdf/EAD_2013-0132-E_1] [which corresponds to FAA AD 2013-16-09] to 
require identification of the affected aeroplanes to establish the 
configuration and, for those aeroplanes, repetitive inspections of 
the opening sequence of the MLG door actuator and, depending on 
findings, replacement of the MLG door actuator. That [EASA] AD also 
provided an optional terminating action by disconnection of the 
interlink for certain LGCIUs, or in-service modification of the 
aeroplane through Airbus SB A320-32-1407 (equivalent to Airbus 
production mod 153655).
    Since those ADs (EASA AD 2011-0069R1 and EASA AD 2013-0132-E) 
were issued, analyses performed by Airbus have revealed that the MLG 
door opening sequence inspection interval needed to be reduced, and 
that the (previously optional) terminating action needed to be made 
mandatory.
    Prompted by these findings, EASA issued AD 2013-0288 [http://ad.easa.europa.eu/blob/easa_ad_2013_0288_superseded.pdf/AD_2013-0288_1], retaining the requirements of EASA AD 2011-0069R1 and EASA 
AD 2013-0132-E, which were superseded, but with reduced inspection 
intervals, and to require replacement or modification, as 
applicable, of the affected MLG door actuators as terminating action 
to the monitoring and repetitive checks and inspections.
    Following introduction of post-mod 153655 MLG door actuators on 
in-service aeroplanes, it has been observed that, in case the 
removed pre-mod MLG door actuator has internal damage, contamination 
of the hydraulic system could have occurred.
    This condition, if not detected and corrected, could result in 
performance degradation (damping degradation) of the post-mod MLG 
door actuator. Testing performed with a new actuator tested in 
heavily contaminated hydraulic system did not show abnormal 
hydraulic restriction/blockage. It is thus not requested to perform 
this ``flushing procedure'' on aircraft already retrofitted with 
std-14 actuators.
    In addition, since EASA AD 2013-0288 was issued, the applicable 
AFM was revised and repetitive checks of specific CFDS messages are 
no longer considered to be required, due to the reduced intervals 
required by EASA AD 2013-0288.
    For the reasons described above, this [EASA] AD partially 
retains the requirements of EASA AD 2013-0288, which is superseded, 
introduces improved wording for clarification and requires, in 
addition to the revised operational (AFM) procedure, hydraulic 
flushing prior to any installation of a post-mod MLG door actuator.

    You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov/#!documentDetail;D=FAA-2014-0529-0003.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We considered the comments received on the SNPRM. The Air Line 
Pilots Association International submitted two comments which supported 
the SNPRM.

Conclusion

    We reviewed the available data, including the comments 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 
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 Bulletins A320-32-1390, Revision 03, 
dated July 3, 2014; and A320-32-1407, Revision 01, dated July 3, 2014. 
Airbus has also issued A318/A319/A320/A321 Temporary Revision (TR) 
TR437, L/G--GEAR NOT DOWNLOCKED, Issue 1.0, dated May 23, 2014, to the 
Airbus A318/A319/A320/A321 AFM.
    Airbus Service Bulletin A320-32-1390, Revision 03, dated July 3, 
2014, describes procedures for inspecting the operation of the MLG door 
opening sequence to determine if an actuator is defective, flushing 
contamination from the landing gear extension and retraction system 
(LGERS), and replacing the door actuator if necessary.
    Airbus Service Bulletin A320-32-1407, Revision 01, dated July 3, 
2014, describes procedures for flushing contamination from the LGERS 
and installing new MLG door actuators.
    Airbus A318/A319/A320/A321 TR TR437, L/G--GEAR NOT DOWNLOCKED, 
Issue 1.0, dated May 23, 2014, to the AFM updates the procedure used 
for incomplete landing gear extension during approach.
    General Electric has issued Service Bulletin 114122-32-105, 
Revision 2, dated June 24, 2014, which describes procedures for 
conversion of a MLG door actuator and removal of unwanted material from 
the hydraulic fluid route.
    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 953 airplanes of U.S. registry.
    The actions required by AD 2011-13-11, and retained in this AD, 
take about 7 work-hours per product, per inspection cycle, at an 
average labor rate of $85 per work-hour. Based on these figures, the 
estimated cost of the actions that were required by AD 2011-13-11 is 
$595 per product, per inspection cycle.
    The actions required by AD 2013-16-09, and retained in this AD, 
take about 3 work-hours per product, per inspection cycle, at an 
average labor rate of $85 per work-hour. Based on these figures, the 
estimated cost of the actions that were required by AD 2013-16-09 is 
$255 per product, per inspection cycle.
    We also estimate that it will take about 19 work-hours per product 
to comply with the basic requirements of this AD. The average labor 
rate is $85 per work-hour. Required parts will cost about $17,140 per 
product. Based on these figures, we estimate the cost of this AD on 
U.S. operators to be $17,873,515, or $18,755 per product.
    In addition, we estimate that any necessary follow-on actions will 
take about 3 work-hours, for a cost of $255 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.

[[Page 12416]]

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.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov/#!docketDetail;D=FAA-2014-0529; 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 Operations office (telephone 800-647-
5527) is in the ADDRESSES section.

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:
0
a. Removing Airworthiness Directive (AD) 2011-13-11, Amendment 39-16734 
(76 FR 37241, June 27, 2011) (``AD 2011-13-11''); and AD 2013-16-09, 
Amendment 39-17547 (78 FR 48286, August 8, 2013) (``AD 2013-16-09''); 
and
0
b. Adding the following new AD:

2016-05-02 Airbus: Amendment 39-18420. Docket No. FAA-2014-0529; 
Directorate Identifier 2013-NM-260-AD.

(a) Effective Date

    This AD becomes effective April 13, 2016.

(b) Affected ADs

    This AD replaces AD 2011-13-11, Amendment 39-16734 (76 FR 37241, 
June 27, 2011) (``AD 2011-13-11''); and AD 2013-16-09, Amendment 39-
17547 (78 FR 48286, August 8, 2013) (``AD 2013-16-09'').

(c) Applicability

    This AD applies to the Airbus airplanes, certificated in any 
category, identified in paragraphs (c)(1), (c)(2), (c)(3), and 
(c)(4) of this AD, all manufacturer serial numbers.
    (1) Model A318-111, -112, -121, and -122 airplanes.
    (2) Model A319-111, -112, -113, -114, -115, -131, -132, and -133 
airplanes.
    (3) Model A320-211, -212, -214, -231, -232, and -233 airplanes.
    (4) Model A321-111, -112, -131, -211, -212, -213, -231, and -232 
airplanes.

(d) Subject

    Air Transport Association (ATA) of America Code 32, Landing 
Gear.

(e) Reason

    This AD was prompted by a determination that the inspection 
interval of the main landing gear (MLG) door opening sequence must 
be reduced. We are issuing this AD to detect and correct 
deterioration of the damping ring and associated retaining ring of 
the MLG door actuator, which can sufficiently increase the friction 
inside the actuator to restrict opening of the MLG door by gravity, 
during operation of the landing gear alternate (free-fall) extension 
system. This condition could prevent the full extension and/or down-
locking of the MLG, possibly resulting in MLG collapse during 
landing and consequent damage to the airplane and injury to 
occupants.

(f) Compliance

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

(g) Retained Repetitive Inspections/Replacement, With a Formatting 
Change

    This paragraph restates the requirements of paragraph (g) of AD 
2011-13-11, with a formatting change. At the time specified in 
paragraph (g)(1) or (g)(2) of this AD, as applicable: Do a general 
visual inspection of the operation of the MLG door opening sequence 
to determine if a defective actuator is installed by doing all the 
applicable actions, including replacing the door actuator, as 
applicable, specified in the Accomplishment Instructions of Airbus 
Service Bulletin A320-32-1309, Revision 01, dated June 19, 2006. Do 
all applicable replacements before further flight. Repeat the 
inspection thereafter at intervals not to exceed 900 flight cycles. 
Doing the inspection required by paragraph (l) of this AD terminates 
the requirements of this paragraph.
    (1) For airplanes on which a record of the total number of 
flight cycles on the MLG door actuator is available: Before the 
accumulation of 3,000 total flight cycles on the MLG door actuator, 
or within 800 flight cycles after April 27, 2007 (the effective date 
of AD 2007-06-18, Amendment 39-14999 (72 FR 13681, March 23, 2007)), 
whichever is later.
    (2) For airplanes on which a record of the total number of 
flight cycles on the MLG door actuator is not available: Within 800 
flight cycles after April 27, 2007 (the effective date of AD 2007-
06-18, Amendment 39-14999 (72 FR 13681, March 23, 2007)).
    (3) For the purposes of this AD, a general visual inspection is: 
``A visual examination of an interior or exterior area, 
installation, or assembly to detect obvious damage, failure, or 
irregularity. This level of inspection is made from within touching 
distance unless otherwise specified. A mirror may be necessary to 
enhance visual access to all exposed surfaces in the inspection 
area. This level of inspection is made under normally available 
lighting conditions such as daylight, hangar lighting, flashlight, 
or droplight and may require removal or opening of access panels or 
doors. Stands, ladders, or platforms may be required to gain 
proximity to the area being checked.''

(h) Retained Provision Regarding Reporting/Parts Return, With No 
Changes

    This paragraph restates the requirements of paragraph (h) of AD 
2011-13-11, with no changes. Although the Accomplishment 
Instructions of Airbus Service Bulletin A320-32-1309, Revision 01, 
dated June 19, 2006, specify submitting certain information to the 
manufacturer and sending defective actuators back to the component 
manufacturer for investigation, this AD does not include those 
requirements.

(i) Retained Revision of the Airplane Flight Manual (AFM), With 
Formatting Changes

    This paragraph restates the requirements of paragraph (i) of AD 
2011-13-11, with formatting changes. Within 14 days after July 12, 
2011 (the effective date of AD 2011-13-11), revise the Emergency 
Procedure Section of the AFM to incorporate the information in 
figure 1 to paragraph (i) of this AD. This may be done by inserting 
a copy of this AD into the AFM. When a statement identical to that 
in figure 1 to paragraph (i) of this AD has been included in the 
Emergency Procedure Section of the general revisions of the AFM, the 
general revisions may be inserted into the AFM, and the copy of this 
AD may be removed from the AFM. Doing the actions required by 
paragraph (t) of this AD terminates the requirements of this 
paragraph.

           Figure 1 to Paragraph (i) of This AD--AFM Revision
------------------------------------------------------------------------
 
-------------------------------------------------------------------------
 If ECAM triggers the ``L/G GEAR NOT DOWNLOCKED'' warning, apply
 the following procedure:
    Recycle landing gear.
 If unsuccessful after 2 min:
    Extend landing gear by gravity. Refer to ABN-32 L/G GRAVITY
     EXTENSION.
------------------------------------------------------------------------

[[Page 12417]]

(j) Retained Repetitive Checks, With New Optional Actions and New 
Service Information

    This paragraph restates the requirements of paragraph (j) of AD 
2011-13-11, with new optional actions and new service information. 
Within 14 days after July 12, 2011 (the effective date of AD 2011-
13-11), or before the accumulation of 800 total flight cycles, 
whichever occurs later, check the post flight report (PFR) for 
centralized fault display system (CFDS) messages triggered within 
the last 8 days, in accordance with paragraph 4.2.1 of Airbus All 
Operators Telex (AOT) A320-32A1390, dated February 10, 2011. Repeat 
the check thereafter at intervals not to exceed 8 days or 5 flight 
cycles, whichever occurs later. If done in accordance with a method 
approved by the Manager, International Branch, ANM-116, Transport 
Airplane Directorate, FAA, the use of an alternative method to check 
the PFR for CFDS messages (e.g., AIRMAN) is acceptable in lieu of 
this check if the messages can be conclusively determined from that 
method. Repetitive inspections of the door opening sequence of the 
left-hand (LH) and right-hand (RH) doors of the MLG, in accordance 
with the Accomplishment Instructions of Airbus Service Bulletin 
A320-32-1390, Revision 03, dated July 3, 2014, are an acceptable 
method of compliance for the actions required by this paragraph. 
Repetitive inspections of the door opening sequence of the LH and RH 
doors of the MLG of an airplane, as required by paragraph (p) of 
this AD, is an acceptable method to comply with the requirements of 
this paragraph.

(k) Retained On-Condition Inspection, With New Service Information and 
Revised Language for an Acronym

    This paragraph restates the requirements of paragraph (k) of AD 
2011-13-11, with new service information and revised langue for an 
acronym. If, during any check required by paragraph (j) of this AD, 
a pair of specific CFDS messages specified in paragraph 4.2.1 of 
Airbus AOT A320-32A1390, dated February 10, 2011, has been triggered 
by both landing gear control and interface units (LGCIU) for the 
same flight, before further flight, inspect the door opening 
sequence of the affected doors of the MLG for discrepancies (i.e., 
if any condition specified in steps (a) through (d) of paragraph 
4.2.2 of Airbus AOT A320-32A1390, dated February 10, 2011, is not 
met; or if any door actuator fails any inspection check specified in 
Airbus Service Bulletin A320-32-1390, Revision 03, dated July 3, 
2014). Do the inspection in accordance with paragraph 4.2.2 of 
Airbus AOT A320-32A1390, dated February 10, 2011; or the 
Accomplishment Instructions of Airbus Service Bulletin A320-32-1390, 
Revision 03, dated July 3, 2014. As of the effective date of this 
AD, use only Airbus Service Bulletin A320-32-1390, Revision 03, 
dated July 3, 2014, for the actions required by this paragraph.

(l) Retained Repetitive Inspections, With New Service Information, New 
Optional Actions, and Reduced Compliance Times

    This paragraph restates the requirements of paragraph (l) of AD 
2011-13-11, with new service information, new optional actions, and 
reduced compliance times. At the applicable time specified in 
paragraph (l)(1) or (l)(2) of this AD: Inspect the door opening 
sequence of the LH and RH doors of the MLG for discrepancies (i.e., 
if any condition specified in steps (a) through (d) of paragraph 
4.2.2 of Airbus AOT A320-32A1390, dated February 10, 2011, is not 
met; or if any door actuator fails any inspection check specified in 
the Accomplishment Instructions of Airbus Service Bulletin A320-32-
1390, Revision 03, dated July 3, 2014). Do the inspection in 
accordance with the instructions of paragraph 4.2.2 of Airbus AOT 
A320-32A1390, dated February 10, 2011; or the Accomplishment 
Instructions of Airbus Service Bulletin A320-32-1390, Revision 03, 
dated July 3, 2014. As of the effective date of this AD, use only 
Airbus Service Bulletin A320-32-1390, Revision 03, dated July 3, 
2014, for the actions required by this paragraph. Repeat the 
inspection within 8 days or 5 flight cycles after the effective date 
of this AD, whichever occurs later, without exceeding 425 flight 
cycles since the most recent inspection; and thereafter repeat the 
inspection at intervals not to exceed 8 days or 5 flight cycles, 
whichever occurs later. In addition, whenever any airplane is not 
operated for a period longer than 8 days, do the inspection before 
further flight. Doing this inspection terminates the requirements of 
paragraph (g) of this AD. Repetitive inspections of the door opening 
sequence of the LH and RH doors of the MLG of an airplane, as 
required by paragraph (p) of this AD, is an acceptable method to 
comply with the requirements of this paragraph.
    (1) For airplanes on which an inspection required by paragraph 
(g) of this AD has been done as of July 12, 2011 (the effective date 
of AD 2011-13-11): Within 800 flight cycles after doing the most 
recent inspection required by paragraph (g) of this AD, or within 
100 flight cycles after July 12, 2011, whichever occurs later.
    (2) For airplanes on which an inspection required by paragraph 
(g) of this AD has not been done as of July 12, 2011 (the effective 
date of AD 2011-13-11): Within 800 flight cycles after July 12, 
2011.

(m) Retained Replacement, With New Service Information

    This paragraph restates the requirements of paragraph (m) of AD 
2011-13-11, with new service information. If any discrepancy (i.e., 
if any condition specified in steps (a) through (d) of paragraph 
4.2.2 of Airbus AOT A320-32A1390, dated February 10, 2011, is not 
met; or if any door actuator fails any inspection check specified in 
the Accomplishment Instructions of Airbus Service Bulletin A320-32-
1390, Revision 03, dated July 3, 2014) is found during any 
inspection required by paragraph (k) or (l) of this AD, before 
further flight, replace the affected MLG door actuator with a new 
MLG door actuator, in accordance with the instructions of Airbus AOT 
A320-32A1390, dated February 10, 2011; or Airbus Service Bulletin 
A320-32-1390, Revision 03, dated July 3, 2014. As of the effective 
date of this AD, use only Airbus Service Bulletin A320-32-1390, 
Revision 03, dated July 3, 2014, to do the actions required by this 
paragraph.

(n) Retained Statement of No Terminating Action for Certain 
Requirements, With No Changes

    This paragraph restates the statement of paragraph (n) of AD 
2011-13-11, with no changes. Replacement of the MLG door actuator as 
required by paragraph (m) of this AD is not a terminating action for 
the repetitive actions required by paragraphs (j) and (l) of this 
AD.

(o) Retained Configuration and Part Number Determination, With No 
Changes

    This paragraph restates the requirements of paragraph (g) of AD 
2013-16-09, with no changes. At the later of the compliance times 
specified in paragraphs (o)(1) and (o)(2) of this AD: Do an 
inspection to determine the configuration (modification status) of 
the airplane and identify the part number of the LH and RH LGCIU and 
MLG door actuators. A review of the airplane delivery or maintenance 
records is acceptable for compliance with the requirements of this 
paragraph provided the airplane configuration and installed 
components can be conclusively determined from that review.
    (1) Prior to the accumulation of 800 total flight cycles since 
first flight of the airplane.
    (2) Within 14 days after August 23, 2013 (the effective date of 
AD 2013-16-09).

(p) Retained MLG Door Opening Sequence Repetitive Inspections, With No 
Changes

    This paragraph restates the requirements of paragraph (h) of AD 
2013-16-09, with no changes. If, during the determination and 
identification required by paragraph (o) of this AD, the 
configuration of the airplane is determined to be post-Airbus 
Modification 39303 or post-Airbus Service Bulletin A320-32-1409 
(Interlink Communication ARINC 429 installed), and both an LGCIU and 
a MLG door actuator are installed with a part number listed in 
figure 2 to paragraph (p) of this AD: Except as provided by 
paragraph (s) of this AD, at the later of the compliance times 
specified in paragraphs (o)(1) and (o)(2) of this AD, and thereafter 
at intervals not to exceed 8 days or 5 flight cycles, whichever 
occurs later, do an inspection of the door opening sequence of the 
LH and RH MLG doors, in accordance with the instructions of Airbus 
Alert Operators Transmission (AOT) A32N001-13, dated June 24, 2013.

       Figure 2 to Paragraph (p) of This AD--Affected Part Numbers
------------------------------------------------------------------------
                    Component name                          Part No.
------------------------------------------------------------------------
LGCIU (LH and RH)....................................    80-178-02-88012
                                                         80-178-03-88013
MLG door actuator....................................          114122006
                                                               114122007
                                                               114122009
                                                               114122010
                                                               114122011
                                                               114122012
------------------------------------------------------------------------

[[Page 12418]]

(q) Retained MLG Door Opening Sequence Corrective Action, With No 
Changes

    This paragraph restates the requirements of paragraph (i) of AD 
2013-16-09, with no changes. If a slow door operation or restricted 
extension is found during any inspection required by paragraph (p) 
of this AD: Before further flight, replace the affected MLG door 
actuator with a new or serviceable actuator, in accordance with the 
instructions of Airbus AOT A32N001-13, dated June 24, 2013.

(r) Retained Terminating Action Limitation for Certain Actions, With 
New Service Information

    This paragraph restates the requirements of paragraph (j) of AD 
2013-16-09, with new service information. Replacement of a MLG door 
actuator, as required by paragraph (q) of this AD, does not 
constitute terminating action for the repetitive inspections 
required by paragraph (p) of this AD, unless MLG door actuators 
having P/N 114122014 are installed on both LH and RH sides, in 
accordance with the Accomplishment Instructions of Airbus Service 
Bulletin A320-32-1407, dated May 14, 2013; or Airbus Service 
Bulletin A320-32-1407, Revision 01, dated July 3, 2014. As of the 
effective date of this AD, use only Airbus Service Bulletin A320-32-
1407, Revision 01, dated July 3, 2014, for the actions required by 
this paragraph.

(s) Retained Repetitive Inspection Exception, With No Changes

    This paragraph restates the requirements of paragraph (k) of AD 
2013-16-09, with no changes. Airplanes on which the LGCIU interlink 
is disconnected (Airbus Modification 155522 applied in production, 
or modified in-service in accordance with the instructions of Airbus 
AOT A32N001-13, dated June 24, 2013), or on which MLG door actuators 
having P/N 114122014 are installed on both LH and RH sides (Airbus 
Modification 153655 applied in production, or modified in-service as 
described in Airbus Service Bulletin A320-32-1407), are not required 
to do the actions required by paragraph (p) of this AD, provided 
that the airplane is not modified to a configuration as defined in 
paragraph (p) of this AD.

(t) New Revision of the AFM

    Within 14 days after the effective date of this AD, revise the 
Emergency Procedure Section of the AFM to incorporate Airbus A318/
A319/A320/A321 Temporary Revision (TR) TR437, L/G--GEAR NOT 
DOWNLOCKED, Issue 1.0, dated May 23, 2014. When this TR has been 
included in general revisions of the AFM, the general revisions may 
be inserted in the AFM, provided the relevant information in the 
general revision is identical to that in this TR, and the copy of 
this TR may be removed from the AFM. Doing the action required by 
this paragraph terminates the actions required by paragraph (i) of 
this AD.

(u) New Replacement of MLG Door Actuator Having P/N 114122012

    Within 12 months after the effective date of this AD: Replace 
each MLG door actuator having P/N 114122012 with a MLG door actuator 
having P/N 114122014, and flush the affected hydraulic system, in 
accordance with the Accomplishment Instructions of Airbus Service 
Bulletin A320-32-1407, Revision 01, dated July 3, 2014; or modify 
each actuator, including doing all applicable related investigative 
and corrective actions, in accordance with the Accomplishment 
Instructions of General Electric Service Bulletin 114122-32-105, 
Revision 2, dated June 24, 2014; except where General Electric 
Service Bulletin 114122-32-105, Revision 2, dated June 24, 2014, 
specifies to contact the manufacturer, before further flight, repair 
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).

(v) New Replacement of Certain Other MLG Door Actuators

    Within 24 months after the effective date of this AD: Replace 
each MLG door actuator having a part number listed in figure 3 to 
paragraph (v) of this AD, except P/N 114122012, with a MLG door 
actuator having P/N 114122014, and flush the affected hydraulic 
system, in accordance with Accomplishment Instructions of Airbus 
Service Bulletin A320-32-1407, Revision 01, dated July 3, 2014; or 
modify each actuator, including doing all applicable related 
investigative and corrective actions, in accordance with the 
Accomplishment Instructions of General Electric Service Bulletin 
114122-32-105, Revision 2, dated June 24, 2014; except where General 
Electric Service Bulletin 114122-32-105, Revision 2, dated June 24, 
2014, specifies to contact the manufacturer, before further flight, 
repair using a method approved by the Manager, International Branch, 
ANM-116, Transport Airplane Directorate, FAA; or the EASA; or 
Airbus's EASA DOA.

       Figure 3 to Paragraph (v) of This AD--Affected Part Numbers
------------------------------------------------------------------------
                    Component name                          Part No.
------------------------------------------------------------------------
MLG door actuator....................................          114122006
                                                               114122007
                                                               114122009
                                                               114122010
                                                               114122011
                                                               114122012
------------------------------------------------------------------------

(w) New Terminating Action

    Modification of an airplane as required by paragraphs (u) and 
(v) of this AD, as applicable, constitutes terminating action for 
all repetitive actions (PFR monitoring checks and inspections) 
required by this AD for that airplane.

(x) New Conditional Terminating Action

    Replacement of a MLG door actuator as required by paragraphs (m) 
and (q) of this AD; or corrective actions as specified in Airbus AOT 
A320-32A1390, dated February 10, 2011; or replacement of a MLG door 
actuator as specified in Airbus Service Bulletin A320-32-1390, 
Revision 03, dated July 3, 2014; does not constitute terminating 
action for the repetitive inspections required by paragraphs (j), 
(l), and (p) of this AD, unless MLG door actuators having P/N 
114122014 are installed on both LH and RH sides, in accordance with 
the Accomplishment Instructions of Airbus Service Bulletin A320-32-
1407, Revision 01, dated July 3, 2014.

(y) New Exception to AD Requirements

    (1) An airplane on which MLG door actuators having P/N 114122014 
are installed on both LH and RH sides (Airbus Modification 153655 
applied in production, or modified in service as specified in Airbus 
Service Bulletin A320-32-1407, dated May 14, 2013; Airbus Service 
Bulletin A320-32-1407, Revision 01, dated July 3, 2014; General 
Electric Service Bulletin 114122-32-105, dated January 17, 2013; or 
General Electric Service Bulletin 114122-32-105, Revision 1, dated 
March 26, 2013; or General Electric Service Bulletin 114122-32-105, 
Revision 2, dated June 24, 2014); is not affected by the 
requirements of paragraphs (j) through (v) of this AD, provided that 
no MLG door actuator with a part number in figure 3 to paragraph (v) 
of this AD has been installed on that airplane since first flight, 
or since modification, as applicable.
    (2) An airplane in the configuration specified in paragraph 
(y)(1) of this AD, and with flight warning computers having P/N 
350E053021212 (H2F7) installed (Airbus Modification 153741 applied 
in production, or modified in service as specified in Airbus Service 
Bulletin A320-31-1414), is not affected by the requirement of 
paragraph (t) of this AD and, following modification, Airbus A318/
A319/A320/A321 TR TR437, L/G GEAR NOT DOWNLOCKED, Issue 1.0, dated 
May 23, 2014 (if inserted), may be removed from the AFM of that 
airplane.

(z) New Parts Installation Prohibitions

    (1) Except as specified in paragraph (z)(2) of this AD, as of 
the effective date of this AD, do not install on any airplane a MLG 
door actuator having a part number listed in figure 3 to paragraph 
(v) of this AD.
    (2) For an airplane subject to the requirements of paragraphs 
(u) and (v) of this AD, as applicable, do not install a MLG door 
actuator having a part number listed in figure 3 to paragraph (v) of 
this AD after modification of the airplane.
    (3) Except as specified in paragraph (z)(4) of this AD, as of 
the effective date of this AD, do not install on any airplane a 
flight warning computer (FWC) having a part number listed in figure 
4 to paragraph (z) of this AD.
    (4) For an airplane subject to the requirements of paragraphs 
(u) and (v) of this AD, as applicable, do not install a FWC having a 
part number listed in figure 4 to paragraph (z) of this AD after 
modification of the airplane.

       Figure 4 to Paragraph (z) of This AD--Affected Part Numbers
------------------------------------------------------------------------
          Component name                          Part No.
------------------------------------------------------------------------
Flight warning computer..........  350E016187171 (C5)
                                   350E017238484 (H1D1)
                                   350E017248685 (H1D2)

[[Page 12419]]

 
                                   350E017251414 (H1E1)
                                   350E017271616 (H1E2)
                                   350E018291818 (H1E3CJ)
                                   350E018301919 (H1E3P)
                                   350E018312020 (H1E3Q)
                                   350E053020202 (H2E2)
                                   350E053020303 (H2E3)
                                   350E053020404 (H2E4)
                                   350E053020606 (H2F2)
                                   350E053020707 (H2F3)
                                   350E053021010 (H2F3P)
                                   350E053020808 (H2F4)
                                   350E053020909 (H2F5)
                                   350E053021111 (H2F6)
------------------------------------------------------------------------

(aa) Credit for Previous Actions

    (1) This paragraph provides credit for actions required by 
paragraph (g) of this AD, if those actions were performed before 
April 27, 2007 (the effective date of AD 2007-06-18), using Airbus 
Service Bulletin A320-32-1309, dated March 7, 2006. This service 
information is not incorporated by reference in this AD.
    (2) This paragraph provides credit for actions required by 
paragraphs (k), (l), and (m) of this AD, if those actions were 
performed before the effective date of this AD using Airbus Service 
Bulletin A320-32-1390, Revision 01, dated September 21, 2011; or 
Airbus Service Bulletin A320-32-1390, Revision 02, dated October 23, 
2013. This service information is not incorporated by reference in 
this AD.
    (3) This paragraph provides credit for actions required by 
paragraphs (u) and (v) of this AD, if those actions were performed 
before the effective date of this AD using General Electric Service 
Bulletin 114122-32-105, dated January 17, 2013; or General Electric 
Service Bulletin 114122-32-105, Revision 1, dated March 26, 2013. 
This service information is not incorporated by reference in this 
AD.

(bb) 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. The 
AMOC approval letter must specifically reference this AD.
    (2) Required for Compliance (RC): If any Airbus 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.
    (3) Contacting the Manufacturer: As of the effective date of 
this AD, except as specified in paragraph (j) of this AD for the use 
of an alternative method to check the PFR for CFDS messages, 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 EASA; or Airbus's EASA DOA. If 
approved by the DOA, the approval must include the DOA-authorized 
signature.
    (4) Previously Approved AMOCs: AMOCs approved previously for AD 
2011-13-11 and AD 2013-16-09 are approved as AMOCs for the 
corresponding provisions of this AD.

(cc) Special Flight Permits

    Special flight permits may be issued in accordance with sections 
21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 
and 21.199) to operate the airplane to a location where the airplane 
can be modified (if the operator elects to do so), provided the MLG 
remains extended and locked, and that no MLG recycle is done.

(dd) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) EASA Airworthiness Directive 2014-0221, dated September 30, 
2014, 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-2014-0529.
    (2) Service information identified in this AD that is not 
incorporated by reference is available at the addresses specified in 
paragraphs (ee)(7), (ee)(8), and (ee)(9) of this AD.

(ee) 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 
April 13, 2016.
    (i) Airbus A318/A319/A320/A321 Temporary Revision TR437, L/G--
GEAR NOT DOWNLOCKED, Issue 1.0, dated May 23, 2014, to the Airbus 
A318/A319/A320/A321 Airplane Flight Manual.
    (ii) Airbus Service Bulletin A320-32-1390, Revision 03, dated 
July 3, 2014.
    (iii) Airbus Service Bulletin A320-32-1407, Revision 01, dated 
July 3, 2014.
    (iv) General Electric Service Bulletin 114122-32-105, Revision 
2, dated June 24, 2014.
    (4) The following service information was approved for IBR on 
August 23, 2013 (78 FR 48286, August 8, 2013).
    (i) Airbus Alert Operators Transmission A32N001-13, dated June 
24, 2013.
    (ii) Reserved.
    (5) The following service information was approved for IBR on 
July 12, 2011 (76 FR 37241, June 27, 2011).
    (i) Airbus All Operators Telex A320-32A1390, dated February 10, 
2011.
    (ii) Reserved.
    (6) The following service information was approved for IBR on 
April 27, 2007 (72 FR 13681, March 23, 2007).
    (i) Airbus Service Bulletin A320-32-1309, Revision 01, dated 
June 19, 2006.
    (ii) Reserved.
    (7) For Airbus 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.
    (8) For General Electric service information identified in this 
AD contact GE Aviation, Customer Support Center, 1 Neumann Way, 
Cincinnati, OH 45215; phone: 513-552-3272; email: 
cs.techpubs@ge.com; Internet: http://www.geaviation.com.
    (9) 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.
    (10) 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 Renton, Washington, on February 18, 2016.
Dionne Palermo,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-04577 Filed 3-8-16; 8:45 am]
 BILLING CODE 4910-13-P