81_FR_11734 81 FR 11690 - Airworthiness Directives; Airbus Airplanes

81 FR 11690 - Airworthiness Directives; Airbus Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 44 (March 7, 2016)

Page Range11690-11692
FR Document2016-04562

We propose to adopt a new airworthiness directive (AD) for all Airbus Model A300 series airplanes; Model A300 B4-600, B4-600R, 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 proposed AD was prompted by reports of partial loss of no-back brake (NBB) efficiency on the trimmable horizontal stabilizer actuator (THSA). This proposed AD would require an inspection to determine THSA part number, serial numbers, and flight cycles on certain THSAs; and repetitive replacement for certain THSAs. We are proposing this AD to prevent loss of THSA NBB efficiency, which in conjunction with the power gear not able to keep the ball screw in its last commanded position, could lead to an uncommanded movement of the horizontal stabilizer, possibly resulting in loss of control of the airplane.

Federal Register, Volume 81 Issue 44 (Monday, March 7, 2016) 
[Federal Register Volume 81, Number 44 (Monday, March 7, 2016)]
[Proposed Rules]
[Pages 11690-11692]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-04562]



[[Page 11690]]

-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-3993; Directorate Identifier 2015-NM-065-AD]
RIN 2120-AA64


Airworthiness Directives; Airbus Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: We propose to adopt a new airworthiness directive (AD) for all 
Airbus Model A300 series airplanes; Model A300 B4-600, B4-600R, 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 proposed AD was prompted by reports of partial 
loss of no-back brake (NBB) efficiency on the trimmable horizontal 
stabilizer actuator (THSA). This proposed AD would require an 
inspection to determine THSA part number, serial numbers, and flight 
cycles on certain THSAs; and repetitive replacement for certain THSAs. 
We are proposing this AD to prevent loss of THSA NBB efficiency, which 
in conjunction with the power gear not able to keep the ball screw in 
its last commanded position, could lead to an uncommanded movement of 
the horizontal stabilizer, possibly resulting in loss of control of the 
airplane.

DATES: We must receive comments on this proposed AD by April 21, 2016.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday 
through Friday, except Federal holidays.
    For service information identified in this NPRM, 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 Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. 
For information on the availability of this material at the FAA, call 
425-227-1221.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2016-
3993; 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 proposed AD, the regulatory evaluation, any comments 
received, and other information. The street address for the Docket 
Operations office (telephone: 800-647-5527) is in the ADDRESSES 
section. Comments will be available in the AD docket shortly after 
receipt.

FOR FURTHER INFORMATION CONTACT: Dan Rodina, Aerospace Engineer, 
International Branch, ANM-116, Transport Airplane Directorate, FAA, 
1601 Lind Avenue SW., Renton, WA 98057-3356; telephone: 425-227-2125; 
fax: 425-227-1149.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2016-3993; 
Directorate Identifier 2015-NM-065-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD based on those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Union, has issued EASA AD 
2015-0081, dated May 7, 2015 (referred to after this as the Mandatory 
Continuing Airworthiness Information, or ``the MCAI''), to correct an 
unsafe condition. The MCAI states:

    During endurance qualification tests on a Trimmable Horizontal 
Stabilizer Actuator (THSA) concerning another aeroplane type, a 
partial loss of the noback brake (NBB) efficiency was experienced. 
Investigation results concluded that this partial loss of braking 
efficiency in some specific aerodynamic load conditions was due to 
polishing and auto-contamination of the NBB carbon friction disks.
    Due to design similarity on the A300-600, A300-600ST and A310 
fleet, the same tests were initiated by the THSA manufacturer on 
certain type THSA, sampled from the field. Subject tests confirmed 
that THSA Part Number (P/N) 47142 series, as installed on the A300-
600, A300-600ST and A310 fleet, are also affected by this partial 
loss of NBB efficiency.
    This condition, if not detected and corrected, and in 
conjunction with the power gear not able to keep the ball screw in 
its last commanded position, could potentially lead to an 
uncommanded movement of the Horizontal Stabilizer, possibly 
resulting in loss of control of the aeroplane.
    For the reasons described above, this [EASA] AD requires the 
removal from service of each affected THSA, with the intent of in-
shop NBB carbon disk replacement.

    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-2016-
3993.

Related Service Information Under 1 CFR Part 51

    Airbus has issued Airbus Service Bulletin A300-27-6070, dated 
February 17, 2015; and Airbus Service Bulletin A310-27-2106, dated 
February 17, 2015. This service information describes procedures for 
inspection and replacement of the THSA.
    This service information is reasonably available because the 
interested parties have access to it through their normal course of 
business or by the means identified in the ADDRESSES section.

FAA's Determination and Requirements of This Proposed AD

    This product has been approved by the aviation authority of another 
country, and is approved for operation in the United States. Pursuant 
to our bilateral agreement with the State of Design Authority, we have 
been notified of the unsafe condition described in the MCAI and service 
information referenced above. We are proposing this AD because we 
evaluated all pertinent information and determined an unsafe condition 
exists and is likely to exist or develop on other products of these 
same type designs.

[[Page 11691]]

Explanation of Compliance Times

    In most ADs, we adopt a compliance time allowing a specified amount 
of time after the AD's effective date. In this case, however, EASA has 
already issued regulations that require operators to replace certain 
THSAs to address an identified unsafe condition by certain dates, but 
before exceeding certain flight cycle limits corresponding to each 
date. To provide for coordinated implementation of EASA's regulations 
and this proposed AD, we are using the same compliance dates in this 
proposed AD.
    This AD proposes the replacement of the NBB disks at an interval of 
14,600 flight cycles to take full benefit of the THSA published life 
limits. The replacement of the THSA NBB disks having already 
accumulated more than 14,600 flight cycles will start with the oldest 
THSA. A different grace period for NBB disks replacement has been 
defined depending on the flight cycles accumulated on the THSA NBB 
disks.

Costs of Compliance

    We estimate that this proposed AD affects 152 airplanes of U.S. 
registry.
    We also estimate that it would take about 27 work-hours per product 
to comply with the basic requirements of this proposed AD. The average 
labor rate is $85 per work-hour. Required parts would cost about 
$590,000 per product. Based on these figures, we estimate the cost of 
this proposed AD on U.S. operators to be $90,028,840, or $592,295 per 
product.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. ``Subtitle VII: Aviation 
Programs,'' describes in more detail the scope of the Agency's 
authority.
    We are issuing this rulemaking under the authority described in 
``Subtitle VII, Part A, Subpart III, Section 44701: General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

Regulatory Findings

    We determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would 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 this proposed 
regulation:
    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.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 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 adding the following new airworthiness 
directive (AD):

Airbus: Docket No. FAA-2016-3993; Directorate Identifier 2015-NM-
065-AD.

(a) Comments Due Date

    We must receive comments by April 21, 2016.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to the Airbus airplanes identified in paragraphs 
(c)(1) through (c)(6) of this AD, certificated in any category, all 
manufacturer serial numbers.
    (1) Airbus Model A300 B2-1A, B2-1C, B2K-3C, B2-203, B4-2C, B4-
103, and B4-203 airplanes.
    (2) Airbus Model A300 B4-601, B4-603, B4-620, and B4-622 
airplanes.
    (3) Airbus Model A300 B4-605R and B4-622R airplanes.
    (4) Airbus Model A300 F4-605R and F4-622R airplanes.
    (5) Airbus Model A300 C4-605R Variant F airplanes.
    (6) Airbus Model A310-203, -204, -221, -222, -304, -322, -324, 
and -325 airplanes.

(d) Subject

    Air Transport Association (ATA) of America Code 27, Flight 
controls.

(e) Reason

    This AD was prompted by reports of partial loss of no-back brake 
(NBB) efficiency on the trimmable horizontal stabilizer actuator 
(THSA). We are issuing this AD to prevent loss of THSA NBB 
efficiency, which in conjunction with the power gear not able to 
keep the ball screw in its last commanded position, could lead to an 
uncommanded movement of the horizontal stabilizer, possibly 
resulting in loss of control of the airplane.

(f) Compliance

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

(g) Affected THSAs

    THSAs affected by the requirements of this AD have part numbers 
(P/Ns) 47142-403, 47142-413, 47142-414, and 47142-423.

    Note 1 to paragraph (g) of this AD:  FAA AD 2011-15-08, 
Amendment 39-16755 (76 FR 42029, July 18, 2011) requires 
installation of three secondary retention plates for the gimbal 
bearings on the THSA upper primary attachment, which involved a THSA 
part number change from the -300 series to the -400 series.


    Note 2 to paragraph (g) of this AD:  The life limits specified 
in Part 4 of the airworthiness limitations section are still 
relevant for the affected THSA. This AD addresses a replacement 
limit for the NBB disks installed on the THSA, not the life limit 
for the THSA itself.

(h) Inspection for Affected THSAs, Flight Cycles, and THSA Replacement

    Before each date and before exceeding the corresponding THSA 
flight-cycle limits specified in paragraphs (j)(1), (j)(2), and 
(j)(3) of this AD, do the actions specified in paragraphs (h)(1) and 
(h)(2) of this AD, and before exceeding the flight cycle limit 
corresponding to each date as specified in paragraphs (j)(1), 
(j)(2), and (j)(3) of this AD, do the actions specified in paragraph 
(i) of this AD.
    (1) Do an inspection of the THSA to determine the part number 
and serial number.
    (2) Do an inspection of the airplane maintenance records to 
determine the flight cycles accumulated on each affected THSA since 
first installation on an airplane, or since last NBB replacement, 
whichever is later. If no maintenance records conclusively 
identifying the last NBB disk replacement are available, the flight 
cycles accumulated since first installation of the THSA on an 
airplane apply.

(i) THSA Replacement

    By each date specified in paragraphs (j)(1), (j)(2), and (j)(3) 
of this AD, for those affected THSAs having reached or exceeded the 
corresponding number of flight cycles

[[Page 11692]]

specified in paragraphs (j)(1), (j)(2), and (j)(3) of this AD, 
replace the THSA with a serviceable unit, in accordance with the 
Accomplishment Instructions of Airbus Service Bulletin A300-27-6070, 
dated February 17, 2015; or Airbus Service Bulletin A310-27-2106, 
dated February 17, 2015, as applicable.

(j) Compliance Dates and THSA Flight Cycle Limits

    Paragraphs (j)(1), (j)(2), and (j)(3) of this AD specify 
compliance dates and THSA flight cycle limits for accomplishing the 
actions required by paragraphs (h) and (i) of this AD.
    (1) As of 30 days after the effective date of this AD: The 
affected THSA flight-cycle limit is 30,000 flight cycles since first 
installation of the THSA on an airplane, or since last NBB 
replacement, whichever is later.
    (2) As of February 1, 2017: The affected THSA flight-cycle limit 
is 20,000 flight cycles since first installation of the THSA on an 
airplane, or since last NBB replacement, whichever is later.
    (3) As of February 1, 2018: The affected THSA flight-cycle limit 
is 14,600 flight cycles since first installation of the THSA on an 
airplane, or since last NBB replacement, whichever is later.

(k) Serviceable THSA Definition

    For the purpose of this AD, a serviceable THSA is a unit 
identified in paragraph (k)(1) or (k)(2) of this AD.
    (1) A THSA identified in paragraph (g) of this AD that, as of 
each date specified in paragraphs (j)(1), (j)(2), and (j)(3) of this 
AD, has not exceeded the flight cycle limits specified in paragraphs 
(j)(1), (j)(2), and (j)(3) of this AD since first installation of 
the THSA on an airplane, or since the last NBB disk replacement, 
whichever is later.
    (2) A THSA with a different part number (e.g., a THSA that is 
not identified in paragraph (g) of this AD) that is not affected by 
the requirements of this AD.

(l) THSA Replacements

    As of each date and before exceeding the flight cycle limit 
corresponding to each date specified in paragraphs (j)(1), (j)(2), 
and (j)(3) of this AD: Replace each affected THSA with a serviceable 
unit, in accordance with the Accomplishment Instructions of Airbus 
Service Bulletin A300-27-6070, dated February 17, 2015; or Airbus 
Service Bulletin A310-27-2106, dated February 17, 2015.

(m) Parts Installation Limitation

    Before each date specified in paragraphs (j)(1), (j)(2), and 
(j)(3) of this AD, an operator may install an affected THSA on an 
airplane, provided that the unit has not exceeded the corresponding 
number of flight cycles specified in paragraphs (j)(1), (j)(2), and 
(j)(3) of this AD, since first installation on an airplane, or since 
last NBB replacement, whichever occurred later.

(n) 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 Dan Rodina, 
Aerospace Engineer, International Branch, ANM-116, Transport 
Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-
3356; telephone: 425-227-2125; fax: 425-227-1149. 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. The 
AMOC approval letter must specifically reference this AD.
    (2) Contacting the Manufacturer: For any requirement in this AD 
to obtain corrective actions from a manufacturer, the action must be 
accomplished using a method approved by the Manager, International 
Branch, ANM-116, Transport Airplane Directorate, FAA; or the 
European Aviation Safety Agency (EASA); or Airbus's EASA Design 
Organization Approval (DOA). If approved by the DOA, the approval 
must include the DOA-authorized signature.
    (3) Required for Compliance (RC): If any service information 
contains procedures or tests that are identified as RC, those 
procedures and tests must be done to comply with this AD; any 
procedures or tests that are not identified as RC are recommended. 
Those procedures and tests that are not identified as RC may be 
deviated from using accepted methods in accordance with the 
operator's maintenance or inspection program without obtaining 
approval of an AMOC, provided the procedures and tests identified as 
RC can be done and the airplane can be put back in an airworthy 
condition. Any substitutions or changes to procedures or tests 
identified as RC require approval of an AMOC.

(o) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) EASA AD 2015-0081, dated May 7, 2015, 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-2016-3993.
    (2) 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. 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.

    Issued in Renton, Washington, on February 24, 2016.
Dionne Palermo,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-04562 Filed 3-4-16; 8:45 am]
 BILLING CODE 4910-13-P

11690 Federal Register / Vol. 81, No. 44 / Monday, March 7, 2016 / Proposed Rules DEPARTMENT OF TRANSPORTATION Cedex, France; telephone: +33 5 61 93 MCAI’’), to correct an unsafe condition. 36 96; fax: +33 5 61 93 44 51; email: The MCAI states: Federal Aviation Administration account.airworth-eas@airbus.com; During endurance qualification tests on a Internet http://www.airbus.com. You Trimmable Horizontal Stabilizer Actuator 14 CFR Part 39 may view this referenced service (THSA) concerning another aeroplane type, a [Docket No. FAA–2016–3993; Directorate information at the FAA, Transport partial loss of the noback brake (NBB) Identifier 2015–NM–065–AD] Airplane Directorate, 1601 Lind Avenue efficiency was experienced. Investigation SW., Renton, WA. For information on results concluded that this partial loss of RIN 2120–AA64 the availability of this material at the braking efficiency in some specific FAA, call 425–227–1221. aerodynamic load conditions was due to Airworthiness Directives; Airbus polishing and auto-contamination of the NBB Airplanes Examining the AD Docket carbon friction disks. Due to design similarity on the A300–600, AGENCY: Federal Aviation You may examine the AD docket on A300–600ST and A310 fleet, the same tests Administration (FAA), DOT. the Internet at http:// were initiated by the THSA manufacturer on ACTION: Notice of proposed rulemaking www.regulations.gov by searching for certain type THSA, sampled from the field. (NPRM). and locating Docket No. FAA–2016– Subject tests confirmed that THSA Part 3993; or in person at the Docket Number (P/N) 47142 series, as installed on SUMMARY: We propose to adopt a new Management Facility between 9 a.m. the A300–600, A300–600ST and A310 fleet, airworthiness directive (AD) for all and 5 p.m., Monday through Friday, are also affected by this partial loss of NBB Airbus Model A300 series airplanes; except Federal holidays. The AD docket efficiency. Model A300 B4–600, B4–600R, F4–600R contains this proposed AD, the This condition, if not detected and corrected, and in conjunction with the power series airplanes, and Model A300 C4– regulatory evaluation, any comments gear not able to keep the ball screw in its last 605R Variant F airplanes (collectively received, and other information. The commanded position, could potentially lead called Model A300–600 series street address for the Docket Operations to an uncommanded movement of the airplanes); and Model A310 series office (telephone: 800–647–5527) is in Horizontal Stabilizer, possibly resulting in airplanes. This proposed AD was the ADDRESSES section. Comments will loss of control of the aeroplane. prompted by reports of partial loss of be available in the AD docket shortly For the reasons described above, this no-back brake (NBB) efficiency on the after receipt. [EASA] AD requires the removal from service trimmable horizontal stabilizer actuator FOR FURTHER INFORMATION CONTACT: Dan of each affected THSA, with the intent of in- (THSA). This proposed AD would shop NBB carbon disk replacement. Rodina, Aerospace Engineer, require an inspection to determine International Branch, ANM–116, You may examine the MCAI in the THSA part number, serial numbers, and Transport Airplane Directorate, FAA, AD docket on the Internet at http:// flight cycles on certain THSAs; and 1601 Lind Avenue SW., Renton, WA www.regulations.gov by searching for repetitive replacement for certain 98057–3356; telephone: 425–227–2125; and locating Docket No. FAA–2016– THSAs. We are proposing this AD to fax: 425–227–1149. 3993. prevent loss of THSA NBB efficiency, SUPPLEMENTARY INFORMATION: which in conjunction with the power Related Service Information Under 1 gear not able to keep the ball screw in Comments Invited CFR Part 51 its last commanded position, could lead We invite you to send any written to an uncommanded movement of the Airbus has issued Airbus Service relevant data, views, or arguments about Bulletin A300–27–6070, dated February horizontal stabilizer, possibly resulting this proposed AD. Send your comments in loss of control of the airplane. 17, 2015; and Airbus Service Bulletin to an address listed under the A310–27–2106, dated February 17, DATES: We must receive comments on ADDRESSES section. Include ‘‘Docket No. 2015. This service information describes this proposed AD by April 21, 2016. FAA–2016–3993; Directorate Identifier procedures for inspection and ADDRESSES: You may send comments, 2015–NM–065–AD’’ at the beginning of replacement of the THSA. using the procedures found in 14 CFR your comments. We specifically invite 11.43 and 11.45, by any of the following comments on the overall regulatory, This service information is reasonably methods: economic, environmental, and energy available because the interested parties • Federal eRulemaking Portal: Go to aspects of this proposed AD. We will have access to it through their normal http://www.regulations.gov. Follow the consider all comments received by the course of business or by the means instructions for submitting comments. closing date and may amend this identified in the ADDRESSES section. • Fax: 202–493–2251. proposed AD based on those comments. FAA’s Determination and Requirements • Mail: U.S. Department of We will post all comments we of This Proposed AD Transportation, Docket Operations, M– receive, without change, to http:// 30, West Building Ground Floor, Room www.regulations.gov, including any This product has been approved by W12–140, 1200 New Jersey Avenue SE., personal information you provide. We the aviation authority of another Washington, DC 20590. will also post a report summarizing each country, and is approved for operation • Hand Delivery: U.S. Department of substantive verbal contact we receive in the United States. Pursuant to our Transportation, Docket Operations, M– about this proposed AD. bilateral agreement with the State of 30, West Building Ground Floor, Room Design Authority, we have been notified mstockstill on DSK4VPTVN1PROD with PROPOSALS W12–140, 1200 New Jersey Avenue SE., Discussion of the unsafe condition described in the Washington, DC, between 9 a.m. and 5 The European Aviation Safety Agency MCAI and service information p.m., Monday through Friday, except (EASA), which is the Technical Agent referenced above. We are proposing this Federal holidays. for the Member States of the European AD because we evaluated all pertinent For service information identified in Union, has issued EASA AD 2015–0081, information and determined an unsafe this NPRM, contact Airbus SAS, dated May 7, 2015 (referred to after this condition exists and is likely to exist or Airworthiness Office—EAW, 1 Rond as the Mandatory Continuing develop on other products of these same Point Maurice Bellonte, 31707 Blagnac Airworthiness Information, or ‘‘the type designs. VerDate Sep<11>2014 16:20 Mar 04, 2016 Jkt 238001 PO 00000 Frm 00013 Fmt 4702 Sfmt 4702 E:\FR\FM\07MRP1.SGM 07MRP1

Federal Register / Vol. 81, No. 44 / Monday, March 7, 2016 / Proposed Rules 11691 Explanation of Compliance Times under Executive Order 13132. This (6) Airbus Model A310–203, –204, –221, proposed AD would not have a –222, –304, –322, –324, and –325 airplanes. In most ADs, we adopt a compliance time allowing a specified amount of substantial direct effect on the States, on (d) Subject time after the AD’s effective date. In this the relationship between the national Air Transport Association (ATA) of case, however, EASA has already issued Government and the States, or on the America Code 27, Flight controls. regulations that require operators to distribution of power and responsibilities among the various (e) Reason replace certain THSAs to address an levels of government. This AD was prompted by reports of partial identified unsafe condition by certain For the reasons discussed above, I loss of no-back brake (NBB) efficiency on the dates, but before exceeding certain flight trimmable horizontal stabilizer actuator cycle limits corresponding to each date. certify this proposed regulation: (THSA). We are issuing this AD to prevent To provide for coordinated 1. Is not a ‘‘significant regulatory loss of THSA NBB efficiency, which in implementation of EASA’s regulations action’’ under Executive Order 12866; conjunction with the power gear not able to and this proposed AD, we are using the 2. Is not a ‘‘significant rule’’ under the keep the ball screw in its last commanded same compliance dates in this proposed DOT Regulatory Policies and Procedures position, could lead to an uncommanded AD. (44 FR 11034, February 26, 1979); movement of the horizontal stabilizer, This AD proposes the replacement of 3. Will not affect intrastate aviation in possibly resulting in loss of control of the the NBB disks at an interval of 14,600 Alaska; and airplane. flight cycles to take full benefit of the 4. Will not have a significant (f) Compliance THSA published life limits. The economic impact, positive or negative, Comply with this AD within the replacement of the THSA NBB disks on a substantial number of small entities compliance times specified, unless already having already accumulated more than under the criteria of the Regulatory done. 14,600 flight cycles will start with the Flexibility Act. (g) Affected THSAs oldest THSA. A different grace period for NBB disks replacement has been List of Subjects in 14 CFR Part 39 THSAs affected by the requirements of this AD have part numbers (P/Ns) 47142–403, defined depending on the flight cycles Air transportation, Aircraft, Aviation 47142–413, 47142–414, and 47142–423. accumulated on the THSA NBB disks. safety, Incorporation by reference, Note 1 to paragraph (g) of this AD: FAA Safety. Costs of Compliance AD 2011–15–08, Amendment 39–16755 (76 The Proposed Amendment FR 42029, July 18, 2011) requires installation We estimate that this proposed AD of three secondary retention plates for the affects 152 airplanes of U.S. registry. Accordingly, under the authority gimbal bearings on the THSA upper primary We also estimate that it would take delegated to me by the Administrator, attachment, which involved a THSA part about 27 work-hours per product to the FAA proposes to amend 14 CFR part number change from the -300 series to the comply with the basic requirements of 39 as follows: –400 series. this proposed AD. The average labor Note 2 to paragraph (g) of this AD: The life rate is $85 per work-hour. Required PART 39—AIRWORTHINESS limits specified in Part 4 of the airworthiness parts would cost about $590,000 per DIRECTIVES limitations section are still relevant for the product. Based on these figures, we affected THSA. This AD addresses a estimate the cost of this proposed AD on ■ 1. The authority citation for part 39 replacement limit for the NBB disks installed U.S. operators to be $90,028,840, or continues to read as follows: on the THSA, not the life limit for the THSA $592,295 per product. itself. Authority: 49 U.S.C. 106(g), 40113, 44701. Authority for This Rulemaking (h) Inspection for Affected THSAs, Flight § 39.13 [Amended] Cycles, and THSA Replacement Title 49 of the United States Code ■ 2. The FAA amends § 39.13 by adding specifies the FAA’s authority to issue Before each date and before exceeding the the following new airworthiness corresponding THSA flight-cycle limits rules on aviation safety. Subtitle I, directive (AD): specified in paragraphs (j)(1), (j)(2), and (j)(3) section 106, describes the authority of of this AD, do the actions specified in Airbus: Docket No. FAA–2016–3993; the FAA Administrator. ‘‘Subtitle VII: Directorate Identifier 2015–NM–065–AD. paragraphs (h)(1) and (h)(2) of this AD, and Aviation Programs,’’ describes in more before exceeding the flight cycle limit detail the scope of the Agency’s (a) Comments Due Date corresponding to each date as specified in authority. We must receive comments by April 21, paragraphs (j)(1), (j)(2), and (j)(3) of this AD, We are issuing this rulemaking under 2016. do the actions specified in paragraph (i) of the authority described in ‘‘Subtitle VII, this AD. (b) Affected ADs (1) Do an inspection of the THSA to Part A, Subpart III, Section 44701: None. determine the part number and serial General requirements.’’ Under that number. section, Congress charges the FAA with (c) Applicability (2) Do an inspection of the airplane promoting safe flight of civil aircraft in This AD applies to the Airbus airplanes maintenance records to determine the flight air commerce by prescribing regulations identified in paragraphs (c)(1) through (c)(6) cycles accumulated on each affected THSA for practices, methods, and procedures of this AD, certificated in any category, all since first installation on an airplane, or the Administrator finds necessary for manufacturer serial numbers. since last NBB replacement, whichever is safety in air commerce. This regulation (1) Airbus Model A300 B2–1A, B2–1C, later. If no maintenance records conclusively B2K–3C, B2–203, B4–2C, B4–103, and B4– identifying the last NBB disk replacement are mstockstill on DSK4VPTVN1PROD with PROPOSALS is within the scope of that authority because it addresses an unsafe condition 203 airplanes. available, the flight cycles accumulated since (2) Airbus Model A300 B4–601, B4–603, first installation of the THSA on an airplane that is likely to exist or develop on B4–620, and B4–622 airplanes. apply. products identified in this rulemaking (3) Airbus Model A300 B4–605R and B4– action. 622R airplanes. (i) THSA Replacement Regulatory Findings (4) Airbus Model A300 F4–605R and F4– By each date specified in paragraphs (j)(1), 622R airplanes. (j)(2), and (j)(3) of this AD, for those affected We determined that this proposed AD (5) Airbus Model A300 C4–605R Variant F THSAs having reached or exceeded the would not have federalism implications airplanes. corresponding number of flight cycles VerDate Sep<11>2014 16:20 Mar 04, 2016 Jkt 238001 PO 00000 Frm 00014 Fmt 4702 Sfmt 4702 E:\FR\FM\07MRP1.SGM 07MRP1

11692 Federal Register / Vol. 81, No. 44 / Monday, March 7, 2016 / Proposed Rules specified in paragraphs (j)(1), (j)(2), and (j)(3) approve AMOCs for this AD, if requested DEPARTMENT OF TRANSPORTATION of this AD, replace the THSA with a using the procedures found in 14 CFR 39.19. serviceable unit, in accordance with the In accordance with 14 CFR 39.19, send your Federal Aviation Administration Accomplishment Instructions of Airbus request to your principal inspector or local Service Bulletin A300–27–6070, dated Flight Standards District Office, as 14 CFR Part 71 February 17, 2015; or Airbus Service Bulletin appropriate. If sending information directly A310–27–2106, dated February 17, 2015, as to the International Branch, send it to Dan [Docket No. FAA–2015–3085; Airspace applicable. Rodina, Aerospace Engineer, International Docket No. 15–ASW–2] Branch, ANM–116, Transport Airplane (j) Compliance Dates and THSA Flight Cycle Directorate, FAA, 1601 Lind Avenue SW., Proposed Amendment of Class E Limits Renton, WA 98057–3356; telephone: 425– Airspace; Little Rock, AR Paragraphs (j)(1), (j)(2), and (j)(3) of this AD 227–2125; fax: 425–227–1149. Information specify compliance dates and THSA flight may be emailed to: 9-ANM-116-AMOC- AGENCY: Federal Aviation cycle limits for accomplishing the actions REQUESTS@faa.gov. Before using any Administration (FAA), DOT. required by paragraphs (h) and (i) of this AD. approved AMOC, notify your appropriate ACTION: Notice of proposed rulemaking (1) As of 30 days after the effective date of principal inspector, or lacking a principal (NPRM). this AD: The affected THSA flight-cycle limit inspector, the manager of the local flight is 30,000 flight cycles since first installation standards district office/certificate holding SUMMARY: This action proposes to of the THSA on an airplane, or since last district office. The AMOC approval letter amend Class E airspace at Little Rock NBB replacement, whichever is later. must specifically reference this AD. (2) As of February 1, 2017: The affected Air Force Base (AFB), Little Rock, AR. (2) Contacting the Manufacturer: For any THSA flight-cycle limit is 20,000 flight cycles requirement in this AD to obtain corrective Airspace reconfiguration is necessary since first installation of the THSA on an actions from a manufacturer, the action must due to closure of the air traffic control airplane, or since last NBB replacement, be accomplished using a method approved tower and associated approaches at whichever is later. by the Manager, International Branch, ANM– Dennis F. Cantrell Field, Conway, AR. (3) As of February 1, 2018: The affected 116, Transport Airplane Directorate, FAA; or Dennis F. Cantrell Field would be THSA flight-cycle limit is 14,600 flight cycles the European Aviation Safety Agency removed from the airspace designation since first installation of the THSA on an (EASA); or Airbus’s EASA Design and legal description as it is no longer airplane, or since last NBB replacement, Organization Approval (DOA). If approved by needed to describe the boundaries of whichever is later. the DOA, the approval must include the Little Rock AFB. The FAA is proposing DOA-authorized signature. (k) Serviceable THSA Definition (3) Required for Compliance (RC): If any this action for continued safety within For the purpose of this AD, a serviceable service information contains procedures or the National Airspace System (NAS). THSA is a unit identified in paragraph (k)(1) tests that are identified as RC, those Additionally, the geographic or (k)(2) of this AD. procedures and tests must be done to comply coordinates for Little Rock AFB and (1) A THSA identified in paragraph (g) of with this AD; any procedures or tests that are Saline County Airport, Benton, AR, this AD that, as of each date specified in not identified as RC are recommended. Those would be adjusted. paragraphs (j)(1), (j)(2), and (j)(3) of this AD, procedures and tests that are not identified DATES: Comments must be received on has not exceeded the flight cycle limits as RC may be deviated from using accepted specified in paragraphs (j)(1), (j)(2), and (j)(3) methods in accordance with the operator’s or before April 21, 2016. of this AD since first installation of the THSA maintenance or inspection program without ADDRESSES: Send comments on this on an airplane, or since the last NBB disk obtaining approval of an AMOC, provided proposal to the U.S. Department of replacement, whichever is later. the procedures and tests identified as RC can Transportation, Docket Operations, M– (2) A THSA with a different part number be done and the airplane can be put back in 30, West Building Ground Floor, Room (e.g., a THSA that is not identified in an airworthy condition. Any substitutions or W12–140, 1200 New Jersey Avenue SE., paragraph (g) of this AD) that is not affected changes to procedures or tests identified as by the requirements of this AD. Washington, DC 20590; telephone (202) RC require approval of an AMOC. 366–9826. You must identify FAA (l) THSA Replacements (o) Related Information Docket No. FAA–2015–3085; Airspace As of each date and before exceeding the (1) Refer to Mandatory Continuing Docket No. 15–ASW–2, at the beginning flight cycle limit corresponding to each date Airworthiness Information (MCAI) EASA AD of your comments. You may also submit specified in paragraphs (j)(1), (j)(2), and (j)(3) 2015–0081, dated May 7, 2015, for related comments through the Internet at of this AD: Replace each affected THSA with information. This MCAI may be found in the http://www.regulations.gov. You may a serviceable unit, in accordance with the AD docket on the Internet at http:// Accomplishment Instructions of Airbus review the public docket containing the www.regulations.gov by searching for and proposal, any comments received, and Service Bulletin A300–27–6070, dated locating Docket No. FAA–2016–3993. February 17, 2015; or Airbus Service Bulletin any final disposition in person in the (2) For service information identified in A310–27–2106, dated February 17, 2015. this AD, contact Airbus SAS, Airworthiness Dockets Office between 9:00 a.m. and Office—EAW, 1 Rond Point Maurice 5:00 p.m., Monday through Friday, (m) Parts Installation Limitation Bellonte, 31707 Blagnac Cedex, France; except Federal holidays. The Docket Before each date specified in paragraphs Office (telephone 1–800–647–5527), is telephone: +33 5 61 93 36 96; fax: +33 5 61 (j)(1), (j)(2), and (j)(3) of this AD, an operator may install an affected THSA on an airplane, 93 44 51; email: account.airworth-eas@ on the ground floor of the building at airbus.com; Internet http://www.airbus.com. the above address. provided that the unit has not exceeded the You may view this service information at the FAA Order 7400.9Z, Airspace corresponding number of flight cycles FAA, Transport Airplane Directorate, 1601 Designations and Reporting Points, and specified in paragraphs (j)(1), (j)(2), and (j)(3) Lind Avenue SW., Renton, WA. For subsequent amendments can be viewed of this AD, since first installation on an information on the availability of this airplane, or since last NBB replacement, online at http://www.faa.gov/air_traffic/ mstockstill on DSK4VPTVN1PROD with PROPOSALS material at the FAA, call 425–227–1221. whichever occurred later. publications/. For further information, Issued in Renton, Washington, on February you can contact the Airspace Policy (n) Other FAA AD Provisions 24, 2016. Group, Federal Aviation The following provisions also apply to this Dionne Palermo, AD: Administration, 800 Independence Acting Manager, Transport Airplane Avenue SW., Washington, DC 20591; (1) Alternative Methods of Compliance Directorate, Aircraft Certification Service. telephone: 202–267–8783. The Order is (AMOCs): The Manager, International Branch, ANM–116, Transport Airplane [FR Doc. 2016–04562 Filed 3–4–16; 8:45 am] also available for inspection at the Directorate, FAA, has the authority to BILLING CODE 4910–13–P National Archives and Records VerDate Sep<11>2014 16:20 Mar 04, 2016 Jkt 238001 PO 00000 Frm 00015 Fmt 4702 Sfmt 4702 E:\FR\FM\07MRP1.SGM 07MRP1


Document Created: 2018-02-02 15:07:58
Document Modified: 2018-02-02 15:07:58
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionProposed Rules
ActionNotice of proposed rulemaking (NPRM).
DatesWe must receive comments on this proposed AD by April 21, 2016.
ContactDan Rodina, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone: 425-227-2125; fax: 425-227-1149.
FR Citation81 FR 11690 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
2025 Federal Register | Disclaimer | Privacy Policy
USC | CFR | eCFR