81 FR 47696 - Airworthiness Directives; Airbus Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 141 (July 22, 2016)

Page Range		47696-47699
FR Document		2016-17014
We are adopting 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 AD was prompted by reports of partial loss of no-back brake (NBB) efficiency on the trimmable horizontal stabilizer actuator (THSA). This AD requires an inspection to determine THSA part numbers, serial numbers, and flight cycles on certain THSAs; and repetitive replacement of certain THSAs. We are issuing this AD to prevent loss of THSA NBB efficiency, which, in conjunction with the inability of the power gear 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 141 (Friday, July 22, 2016)
[Federal Register Volume 81, Number 141 (Friday, July 22, 2016)]
[Rules and Regulations]
[Pages 47696-47699]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-17014]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-3993; Directorate Identifier 2015-NM-065-AD; 
Amendment 39-18592; AD 2016-15-01]
RIN 2120-AA64


Airworthiness Directives; Airbus Airplanes

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

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for all 
Airbus Model 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 AD was prompted by reports of partial loss of 
no-back brake (NBB) efficiency on the trimmable horizontal stabilizer 
actuator (THSA). This AD requires an inspection to determine THSA part 
numbers, serial numbers, and flight cycles on certain THSAs; and 
repetitive replacement of certain THSAs. We are issuing this AD to 
prevent loss of THSA NBB efficiency, which, in conjunction with the 
inability of the power gear 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: This AD is effective August 26, 2016.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of August 26, 
2016.

ADDRESSES: For service information identified in this final rule, 
contact Airbus SAS, Airworthiness Office--EAW, 1 Rond Point Maurice 
Bellonte, 31707 Blagnac Cedex, France; telephone: +33 5 61 93 36 96; 
fax: +33 5 61 93 44 51; email: [email protected]; 
Internet http://www.airbus.com. You may view this referenced service 
information at the FAA, Transport 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-2016-3993.

[[Page 47697]]

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 AD, the regulatory evaluation, any comments received, and 
other information. The street address for the Docket Office (telephone 
800-647-5527) is Docket Management Facility, U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: 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:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to all Airbus 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. The NPRM 
published in the Federal Register on March 7, 2016 (81 FR 11690) (``the 
NPRM''). The NPRM was prompted by reports of partial loss of NBB 
efficiency on the THSA. The NPRM proposed to require an inspection to 
determine THSA part numbers, serial numbers, and flight cycles on 
certain THSAs; and repetitive replacement for certain THSAs. We are 
issuing this AD to prevent loss of THSA NBB efficiency, which, in 
conjunction with the inability of the power gear 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.
    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 on 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. The MCAI states:

    During endurance qualification tests on a Trimmable Horizontal 
Stabilizer Actuator (THSA) concerning another aeroplane type, a 
partial loss of the no-back 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.

Comments

    We gave the public the opportunity to participate in developing 
this AD. The following presents the comments received on the NPRM and 
the FAA's response to each comment.

Support for the NPRM

    The Airline Pilots Association International stated that it fully 
supports the intent of the NPRM.

Requests To Revise Compliance Date

    Airbus, FedEx Express, and United Parcel Service requested that we 
revise the compliance date in paragraph (j)(3) of the proposed AD from 
February 1, 2018, to February 1, 2019. The commenters stated that this 
revision would match the MCAI.
    We agree with the commenters' request. This was a typographical 
error. Our intent was to match the MCAI. We have revised paragraph 
(j)(3) of this AD accordingly.

Request To Allow Maintenance Records Review

    FedEx Express requested that we allow a review of the operator's 
maintenance records to determine the part number and serial number of 
the THSA specified in paragraph (h)(1) of the proposed AD. FedEx 
Express stated that this review would accomplish the same intent as a 
physical inspection of the THSA.
    We agree with the commenter's request. We have revised paragraph 
(h)(1) of this AD to allow doing a review of airplane maintenance 
records in lieu of the THSA inspection if the part number and serial 
number of the THSA can be conclusively determined from that review.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this AD with the changes described previously and minor editorial 
changes. We have determined that these minor changes:
     Are consistent with the intent that was proposed in the 
NPRM for correcting the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.
    We also determined that these changes will not increase the 
economic burden on any operator or increase the scope of this AD.

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.

Costs of Compliance

    We estimate that this 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 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 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

[[Page 47698]]

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

Regulatory Findings

    We determined that this AD will not have federalism implications 
under Executive Order 13132. This AD will not have a substantial direct 
effect on the States, on the relationship between the national 
government and the States, or on the distribution of power and 
responsibilities among the various levels of government.
    For the reasons discussed above, I certify that this AD:
    1. Is not a ``significant regulatory action'' under Executive Order 
12866;
    2. Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979);
    3. Will not affect intrastate aviation in Alaska; and
    4. Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

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):

2016-15-01 Airbus: Amendment 39-18592. Docket No. FAA-2016-3993; 
Directorate Identifier 2015-NM-065-AD.

(a) Effective Date

    This AD is effective August 26, 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 inability of the power 
gear 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. A review of airplane maintenance records is 
acceptable in lieu of this inspection if the part number and serial 
number of the THSA can be conclusively determined from that review.
    (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 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, 2019: 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

[[Page 47699]]

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 is 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

    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.

(p) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless this AD specifies otherwise.
    (i) Airbus Service Bulletin A300-27-6070, dated February 17, 
2015.
    (ii) Airbus Service Bulletin A310-27-2106, dated February 17, 
2015.
    (3) 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.
    (4) You may view this service information at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For 
information on the availability of this material at the FAA, call 
425-227-1221.
    (5) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued in Renton, Washington, on July 11, 2016.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-17014 Filed 7-21-16; 8:45 am]
 BILLING CODE 4910-13-P
47696 Federal Register / Vol. 81, No. 141 / Friday, July 22, 2016 / Rules and Regulations

correct the unsafe condition on these request to your principal inspector or local DEPARTMENT OF TRANSPORTATION
products. Flight Standards District Office, as
(f) Compliance appropriate. If sending information directly Federal Aviation Administration
to the manager of the ACO, send it to the
Comply with paragraphs (g)(1) through (2)
attention of the person identified in 14 CFR Part 39
of this AD using the following service
bulletins within the compliance times paragraph (j) of this AD.
specified below, unless already done: (2) Before using any approved AMOC, [Docket No. FAA–2016–3993; Directorate
(1) For Models SA26–T and SA26–AT: M7 notify your appropriate principal inspector, Identifier 2015–NM–065–AD; Amendment
Aerospace LLC Service Bulletin (SB) 26–27– or lacking a principal inspector, the manager 39–18592; AD 2016–15–01]
002, dated October 8, 2015; of the local flight standards district office/
(2) For Models SA226–AT, SA226–T, RIN 2120–AA64
certificate holding district office.
SA226–T(B), and SA226–TC: M7 Aerospace
LLC SB 226–27–078, dated October 8, 2015; (i) Related Information Airworthiness Directives; Airbus
(3) For Models SA227–AC(C–26A), SA227– For more information about this AD, Airplanes
AT, SA227–BC(C–26A), and SA227–TT: M7 contact Andrew McAnaul, Aerospace
Aerospace LLC SB 227–27–058, dated AGENCY: Federal Aviation
Engineer, FAA, ASW–143 (c/o San Antonio Administration (FAA), Department of
October 8, 2015; or
(4) For Models SA227–CC and SA227–DC MIDO), 10100 Reunion Place, Suite 650, San Transportation (DOT).
(C–26B): M7 Aerospace LLC SB CC7–27–030, Antonio, Texas 78216; phone: (210) 308–
ACTION: Final rule.
dated October 8, 2015. 3365; fax: (210) 308–3370; email:
andrew.mcanaul@faa.gov. SUMMARY: We are adopting a new
(g) Actions
(j) Material Incorporated by Reference airworthiness directive (AD) for all
(1) For all airplanes: Within the next 2,000
hours time-in-service (TIS) after [insert date Airbus Model A300 series airplanes;
(1) The Director of the Federal Register
35 days after date of publication in the Model A300 B4–600, B4–600R, F4–600R
approved the incorporation by reference
Federal Register] (the effective date of this (IBR) of the service information listed in this
series airplanes, and Model A300 C4–
AD) or no later than when the airplane paragraph under 5 U.S.C. 552(a) and 1 CFR
605R Variant F airplanes (collectively
accumulates 20,000 hours TIS, whichever
part 51. called Model A300–600 series
occurs later, do an initial inspection of the airplanes); and Model A310 series
cockpit control column horizontal tube for (2) You must use this service information
as applicable to do the actions required by airplanes. This AD was prompted by
cracks following the Accomplishment reports of partial loss of no-back brake
Instructions in section 2. of the service this AD, unless the AD specifies otherwise.
bulletins identified in paragraphs (f)(1), (2), (i) M7 Aerospace LLC Service Bulletin (SB) (NBB) efficiency on the trimmable
(3), or (4) of this AD, as applicable; and 26–27–002, dated October 8, 2015; horizontal stabilizer actuator (THSA).
repetitively inspect as follows: (ii) M7 Aerospace LLC SB 226–27–078, This AD requires an inspection to
(i) For airplanes with less than 35,000 dated October 8, 2015; determine THSA part numbers, serial
hours TIS as of [insert date 35 days after date (iii) M7 Aerospace LLC SB 227–27–058, numbers, and flight cycles on certain
of publication in the Federal Register] (the dated October 8, 2015; or THSAs; and repetitive replacement of
effective date of this AD): Repetitively certain THSAs. We are issuing this AD
(iv) M7 Aerospace LLC SB CC7–27–030,
inspect the cockpit control column to prevent loss of THSA NBB efficiency,
horizontal tube for cracks every 5,000 hours dated October 8, 2015.
TIS until the airplane reaches 35,000 hours (3) For service information identified in which, in conjunction with the inability
TIS at which time do the inspection within this AD, contact M7 Aerospace LLC, 10823 of the power gear to keep the ball screw
2,000 hours TIS from the last inspection or NE Entrance Road, San Antonio, Texas in its last commanded position, could
within the next 100 hours TIS, whichever 78216; phone: (210) 824–9421; fax: (210) lead to an uncommanded movement of
occurs later, and then thereafter at intervals 804–7766; Internet: http://www.elbitsystems- the horizontal stabilizer, possibly
not to exceed 2,000 hours TIS. us.com; email: MetroTech@ resulting in loss of control of the
(ii) For airplanes with 35,000 hours TIS or M7Aerospace.com. airplane.
more as of [insert date 35 days after date of (4) You may view this referenced service
publication in the Federal Register] (the DATES: This AD is effective August 26,
information at the FAA, Small Airplane
effective date of this AD): Repetitively 2016.
inspect the cockpit control column Directorate, 901 Locust, Kansas City,
The Director of the Federal Register
horizontal tube for cracks every 2,000 hours Missouri 64106. For information on the
approved the incorporation by reference
TIS. availability of this material at the FAA, call
of certain publications listed in this AD
(2) For all airplanes: If any cracks are 816–329–4148.
as of August 26, 2016.
found following the inspections required in (5) You may view this service information
paragraphs (g)(1), (g)(1)(i), or (ii), as that is incorporated by reference at the ADDRESSES: For service information
applicable, before further flight, repair the National Archives and Records identified in this final rule, contact
control column following the Administration (NARA). For information on Airbus SAS, Airworthiness Office—
Accomplishment Instructions in section 2. of the availability of this material at NARA, call EAW, 1 Rond Point Maurice Bellonte,
the service bulletins identified in paragraphs 31707 Blagnac Cedex, France;
202–741–6030, or go to: http://
(f)(1), (2), (3), or (4), as applicable, of this AD.
www.archives.gov/federal-register/cfr/ibr- telephone: +33 5 61 93 36 96; fax: +33
Note to paragraph (g)(1) through (2) of this
AD: The reporting of information requested locations.html. 5 61 93 44 51; email: account.airworth-
in paragraph 2.H. of the Accomplishment eas@airbus.com; Internet http://
Issued in Kansas City, Missouri, on July 13,
Instructions in the service bulletins www.airbus.com. You may view this
2016.
identified in paragraphs (f)(1), (2), (3), and (4) referenced service information at the
of this AD is not a required action of this AD. Pat Mullen, FAA, Transport Airplane Directorate,
Acting Manager, Small Airplane Directorate, 1601 Lind Avenue SW., Renton, WA.
(h) Alternative Methods of Compliance
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Aircraft Certification Service. For information on the availability of
(AMOCs)
(1) The Manager, Fort Worth Airplane
[FR Doc. 2016–17039 Filed 7–21–16; 8:45 am] this material at the FAA, call 425–227–
Certification Office, FAA, has the authority to BILLING CODE 4910–13–P 1221. It is also available on the Internet
approve AMOCs for this AD, if requested at http://www.regulations.gov by
using the procedures found in 14 CFR 39.19. searching for and locating Docket No.
In accordance with 14 CFR 39.19, send your FAA–2016–3993.

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Examining the AD Docket Model A300 C4–605R Variant F part number and serial number of the
You may examine the AD docket on airplanes (collectively called Model THSA specified in paragraph (h)(1) of
the Internet at http:// A300–600 series airplanes); and Model the proposed AD. FedEx Express stated
www.regulations.gov by searching for A310 series airplanes. The MCAI states: that this review would accomplish the
and locating Docket No. FAA–2016– During endurance qualification tests on a same intent as a physical inspection of
3993; or in person at the Docket Trimmable Horizontal Stabilizer Actuator the THSA.
Management Facility between 9 a.m. (THSA) concerning another aeroplane type, a We agree with the commenter’s
and 5 p.m., Monday through Friday, partial loss of the no-back brake (NBB) request. We have revised paragraph
except Federal holidays. The AD docket efficiency was experienced. Investigation (h)(1) of this AD to allow doing a review
results concluded that this partial loss of of airplane maintenance records in lieu
contains this AD, the regulatory
braking efficiency in some specific of the THSA inspection if the part
evaluation, any comments received, and aerodynamic load conditions was due to
other information. The street address for number and serial number of the THSA
polishing and auto-contamination of the NBB
the Docket Office (telephone 800–647– carbon friction disks.
can be conclusively determined from
5527) is Docket Management Facility, Due to design similarity on the A300–600, that review.
U.S. Department of Transportation, A300–600ST and A310 fleet, the same tests Conclusion
Docket Operations, M–30, West were initiated by the THSA manufacturer on
Building Ground Floor, Room W12–140, certain type THSA, sampled from the field. We reviewed the relevant data,
1200 New Jersey Avenue SE., Subject tests confirmed that THSA Part considered the comments received, and
Washington, DC 20590. Number (P/N) 47142 series, as installed on determined that air safety and the
the A300–600, A300–600ST and A310 fleet, public interest require adopting this AD
FOR FURTHER INFORMATION CONTACT: Dan are also affected by this partial loss of NBB with the changes described previously
Rodina, Aerospace Engineer, efficiency. and minor editorial changes. We have
International Branch, ANM–116, This condition, if not detected and
determined that these minor changes:
Transport Airplane Directorate, FAA, corrected, and in conjunction with the power
• Are consistent with the intent that
1601 Lind Avenue SW., Renton, WA gear not able to keep the ball screw in its last
commanded position, could potentially lead was proposed in the NPRM for
98057–3356; telephone: 425–227–2125; correcting the unsafe condition; and
fax: 425–227–1149. to an uncommanded movement of the
Horizontal Stabilizer, possibly resulting in • Do not add any additional burden
SUPPLEMENTARY INFORMATION: loss of control of the aeroplane. upon the public than was already
Discussion For the reasons described above, this proposed in the NPRM.
[EASA] AD requires the removal from service We also determined that these
We issued a notice of proposed of each affected THSA, with the intent of in- changes will not increase the economic
rulemaking (NPRM) to amend 14 CFR shop NBB carbon disk replacement. burden on any operator or increase the
part 39 by adding an AD that would scope of this AD.
You may examine the MCAI in the
apply to all Airbus Model A300 series
AD docket on the Internet at http:// Related Service Information Under 1
airplanes; Model A300 B4–600, B4–
www.regulations.gov by searching for CFR Part 51
600R, F4–600R series airplanes, and
and locating Docket No. FAA–2016–
Model A300 C4–605R Variant F Airbus has issued Airbus Service
3993.
airplanes (collectively called Model Bulletin A300–27–6070, dated February
A300–600 series airplanes); and Model Comments 17, 2015; and Airbus Service Bulletin
A310 series airplanes. The NPRM We gave the public the opportunity to A310–27–2106, dated February 17,
published in the Federal Register on participate in developing this AD. The 2015. This service information describes
March 7, 2016 (81 FR 11690) (‘‘the following presents the comments procedures for inspection and
NPRM’’). The NPRM was prompted by received on the NPRM and the FAA’s replacement of the THSA.
reports of partial loss of NBB efficiency response to each comment. This service information is reasonably
on the THSA. The NPRM proposed to available because the interested parties
require an inspection to determine Support for the NPRM have access to it through their normal
THSA part numbers, serial numbers, The Airline Pilots Association course of business or by the means
and flight cycles on certain THSAs; and International stated that it fully supports identified in the ADDRESSES section.
repetitive replacement for certain the intent of the NPRM.
THSAs. We are issuing this AD to Costs of Compliance
prevent loss of THSA NBB efficiency, Requests To Revise Compliance Date We estimate that this AD affects 152
which, in conjunction with the inability Airbus, FedEx Express, and United airplanes of U.S. registry.
of the power gear to keep the ball screw Parcel Service requested that we revise We also estimate that it would take
in its last commanded position, could the compliance date in paragraph (j)(3) about 27 work-hours per product to
lead to an uncommanded movement of of the proposed AD from February 1, comply with the basic requirements of
the horizontal stabilizer, possibly 2018, to February 1, 2019. The this AD. The average labor rate is $85
resulting in loss of control of the commenters stated that this revision per work-hour. Required parts would
airplane. would match the MCAI. cost about $590,000 per product. Based
The European Aviation Safety Agency We agree with the commenters’ on these figures, we estimate the cost of
(EASA), which is the Technical Agent request. This was a typographical error. this AD on U.S. operators to be
for the Member States of the European Our intent was to match the MCAI. We $90,028,840, or $592,295 per product.
Union, has issued EASA AD 2015–0081, have revised paragraph (j)(3) of this AD
dated May 7, 2015 (referred to after this Authority for This Rulemaking
accordingly.
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as the Mandatory Continuing Title 49 of the United States Code
Airworthiness Information, or ‘‘the Request To Allow Maintenance Records specifies the FAA’s authority to issue
MCAI’’), to correct an unsafe condition Review rules on aviation safety. Subtitle I,
on all Airbus Model A300 series FedEx Express requested that we section 106, describes the authority of
airplanes; Model A300 B4–600, B4– allow a review of the operator’s the FAA Administrator. ‘‘Subtitle VII:
600R, F4–600R series airplanes, and maintenance records to determine the Aviation Programs,’’ describes in more

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47698 Federal Register / Vol. 81, No. 141 / Friday, July 22, 2016 / Rules and Regulations

detail the scope of the Agency’s (a) Effective Date paragraphs (j)(1), (j)(2), and (j)(3) of this AD,
authority. This AD is effective August 26, 2016. do the actions specified in paragraph (i) of
We are issuing this rulemaking under this AD.
(b) Affected ADs (1) Do an inspection of the THSA to
the authority described in ‘‘Subtitle VII, determine the part number and serial
Part A, Subpart III, Section 44701: None.
number. A review of airplane maintenance
General requirements.’’ Under that (c) Applicability records is acceptable in lieu of this
section, Congress charges the FAA with This AD applies to the Airbus airplanes inspection if the part number and serial
promoting safe flight of civil aircraft in identified in paragraphs (c)(1) through (c)(6) number of the THSA can be conclusively
air commerce by prescribing regulations of this AD, certificated in any category, all determined from that review.
for practices, methods, and procedures manufacturer serial numbers. (2) Do an inspection of the airplane
the Administrator finds necessary for (1) Airbus Model A300 B2–1A, B2–1C, maintenance records to determine the flight
B2K–3C, B2–203, B4–2C, B4–103, and B4– cycles accumulated on each affected THSA
safety in air commerce. This regulation since first installation on an airplane, or
203 airplanes.
is within the scope of that authority (2) Airbus Model A300 B4–601, B4–603, since last NBB replacement, whichever is
because it addresses an unsafe condition B4–620, and B4–622 airplanes. later. If no maintenance records conclusively
that is likely to exist or develop on (3) Airbus Model A300 B4–605R and B4– identifying the last NBB disk replacement are
products identified in this rulemaking 622R airplanes. available, the flight cycles accumulated since
action. (4) Airbus Model A300 F4–605R and F4– first installation of the THSA on an airplane
622R airplanes. apply.
Regulatory Findings (5) Airbus Model A300 C4–605R Variant F (i) THSA Replacement
We determined that this AD will not airplanes.
(6) Airbus Model A310–203, –204, –221, By each date specified in paragraphs (j)(1),
have federalism implications under (j)(2), and (j)(3) of this AD, for those affected
–222, –304, –322, –324, and –325 airplanes.
Executive Order 13132. This AD will THSAs having reached or exceeded the
not have a substantial direct effect on (d) Subject corresponding number of flight cycles
the States, on the relationship between Air Transport Association (ATA) of specified in paragraphs (j)(1), (j)(2), and (j)(3)
the national government and the States, America Code 27, Flight controls. of this AD, replace the THSA with a
or on the distribution of power and serviceable unit, in accordance with the
(e) Reason Accomplishment Instructions of Airbus
responsibilities among the various
This AD was prompted by reports of partial Service Bulletin A300–27–6070, dated
levels of government. loss of no-back brake (NBB) efficiency on the February 17, 2015; or Airbus Service Bulletin
For the reasons discussed above, I trimmable horizontal stabilizer actuator A310–27–2106, dated February 17, 2015, as
certify that this AD: (THSA). We are issuing this AD to prevent applicable.
1. Is not a ‘‘significant regulatory loss of THSA NBB efficiency, which, in
(j) Compliance Dates and THSA Flight-Cycle
action’’ under Executive Order 12866; conjunction with the inability of the power
Limits
2. Is not a ‘‘significant rule’’ under the gear to keep the ball screw in its last
commanded position, could lead to an Paragraphs (j)(1), (j)(2), and (j)(3) of this AD
DOT Regulatory Policies and Procedures specify compliance dates and THSA flight-
uncommanded movement of the horizontal
(44 FR 11034, February 26, 1979); stabilizer, possibly resulting in loss of control cycle limits for accomplishing the actions
3. Will not affect intrastate aviation in of the airplane. required by paragraphs (h) and (i) of this AD.
Alaska; and (1) As of 30 days after the effective date of
(f) Compliance this AD: The affected THSA flight-cycle limit
4. Will not have a significant
economic impact, positive or negative, Comply with this AD within the is 30,000 flight cycles since first installation
on a substantial number of small entities compliance times specified, unless already of the THSA on an airplane, or since last
done. NBB replacement, whichever is later.
under the criteria of the Regulatory (2) As of February 1, 2017: The affected
Flexibility Act. (g) Affected THSAs THSA flight-cycle limit is 20,000 flight cycles
List of Subjects in 14 CFR Part 39 THSAs affected by the requirements of this since first installation of the THSA on an
AD have part numbers (P/Ns) 47142–403, airplane, or since last NBB replacement,
Air transportation, Aircraft, Aviation 47142–413, 47142–414, and 47142–423. whichever is later.
safety, Incorporation by reference, Note 1 to paragraph (g) of this AD: FAA (3) As of February 1, 2019: The affected
Safety. AD 2011–15–08, Amendment 39–16755 (76 THSA flight-cycle limit is 14,600 flight cycles
FR 42029, July 18, 2011), requires installation since first installation of the THSA on an
Adoption of the Amendment of three secondary retention plates for the airplane, or since last NBB replacement,
gimbal bearings on the THSA upper primary whichever is later.
Accordingly, under the authority
attachment, which involved a THSA part (k) Serviceable THSA Definition
delegated to me by the Administrator,
number change from the –300 series to the
the FAA amends 14 CFR part 39 as –400 series. For the purpose of this AD, a serviceable
follows: THSA is a unit identified in paragraph (k)(1)
Note 2 to paragraph (g) of this AD: The life or (k)(2) of this AD.
PART 39—AIRWORTHINESS limits specified in Part 4 of the airworthiness (1) A THSA identified in paragraph (g) of
DIRECTIVES limitations section are still relevant for the this AD that, as of each date specified in
affected THSA. This AD addresses a paragraphs (j)(1), (j)(2), and (j)(3) of this AD,
replacement limit for the NBB disks installed has not exceeded the flight-cycle limits
■ 1. The authority citation for part 39 on the THSA, not the life limit for the THSA
continues to read as follows: specified in paragraphs (j)(1), (j)(2), and (j)(3)
itself. of this AD since first installation of the THSA
Authority: 49 U.S.C. 106(g), 40113, 44701. on an airplane, or since the last NBB disk
(h) Inspection for Affected THSAs, Flight
replacement, whichever is later.
§ 39.13 [Amended] Cycles, and THSA Replacement
(2) A THSA with a different part number
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■ 2. The FAA amends § 39.13 by adding Before each date and before exceeding the (e.g., a THSA that is not identified in
corresponding THSA flight-cycle limits paragraph (g) of this AD) that is not affected
the following new airworthiness
specified in paragraphs (j)(1), (j)(2), and (j)(3) by the requirements of this AD.
directive (AD): of this AD, do the actions specified in
2016–15–01 Airbus: Amendment 39–18592. paragraphs (h)(1) and (h)(2) of this AD; and (l) THSA Replacements
Docket No. FAA–2016–3993; Directorate before exceeding the flight-cycle limit As of each date and before exceeding the
Identifier 2015–NM–065–AD. corresponding to each date as specified in flight-cycle limit corresponding to each date

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Federal Register / Vol. 81, No. 141 / Friday, July 22, 2016 / Rules and Regulations 47699

specified in paragraphs (j)(1), (j)(2), and (j)(3) 2015–0081, dated May 7, 2015, for related prohibition against certain flight
of this AD: Replace each affected THSA with information. This MCAI may be found in the operations in the Simferopol (UKFV)
a serviceable unit, in accordance with the AD docket on the Internet at http:// and Dnipropetrovsk (UKDV) flight
Accomplishment Instructions of Airbus www.regulations.gov by searching for and
Service Bulletin A300–27–6070, dated
information regions (FIRs) by all United
locating Docket No. FAA–2016–3993.
February 17, 2015; or Airbus Service Bulletin States (U.S.) air carriers; U.S.
A310–27–2106, dated February 17, 2015. (p) Material Incorporated by Reference commercial operators; persons
(1) The Director of the Federal Register exercising the privileges of a U.S.
(m) Parts Installation Limitation
approved the incorporation by reference airman certificate, except when such
Before each date specified in paragraphs (IBR) of the service information listed in this persons are operating a U.S.-registered
(j)(1), (j)(2), and (j)(3) of this AD, an operator paragraph under 5 U.S.C. 552(a) and 1 CFR aircraft for a foreign air carrier; and
may install an affected THSA on an airplane, part 51.
provided that the unit has not exceeded the
operators of U.S.-registered civil aircraft,
(2) You must use this service information
corresponding number of flight cycles except when such operators are foreign
as applicable to do the actions required by
specified in paragraphs (j)(1), (j)(2), and (j)(3) this AD, unless this AD specifies otherwise. air carriers. The State Aviation
of this AD, since first installation on an (i) Airbus Service Bulletin A300–27–6070, Administration of Ukraine conducted
airplane, or since last NBB replacement, dated February 17, 2015. and completed an airspace restructuring
whichever is later. (ii) Airbus Service Bulletin A310–27–2106, that altered the Simferopol (UKFV) and
(n) Other FAA AD Provisions dated February 17, 2015. Dnipropetrovsk (UKDV) Flight
(3) For service information identified in Information Region (FIR) altitude
The following provisions also apply to this this AD, contact Airbus SAS, Airworthiness
AD: structure specified in the final rule. To
Office—EAW, 1 Rond Point Maurice address the Ukraine airspace
(1) Alternative Methods of Compliance Bellonte, 31707 Blagnac Cedex, France;
(AMOCs): The Manager, International restructuring and provide additional
telephone: +33 5 61 93 36 96; fax: +33 5 61
Branch, ANM–116, Transport Airplane 93 44 51; email: account.airworth-eas@ clarity, this technical amendment
Directorate, FAA, has the authority to airbus.com; Internet http://www.airbus.com. specifically identifies the prohibited
approve AMOCs for this AD, if requested (4) You may view this service information airspace in which Special Federal
using the procedures found in 14 CFR 39.19. Aviation Regulation (SFAR) 113,
at the FAA, Transport Airplane Directorate,
In accordance with 14 CFR 39.19, send your
1601 Lind Avenue SW., Renton, WA. For applies, with inclusive altitudes and
request to your principal inspector or local
information on the availability of this lateral limitations (latitude and
Flight Standards District Office, as
material at the FAA, call 425–227–1221. longitude coordinates).
appropriate. If sending information directly
(5) You may view this service information
to the International Branch, send it to Dan DATES: This final rule is effective on July
that is incorporated by reference at the
Rodina, Aerospace Engineer, International 21, 2016.
National Archives and Records
Branch, ANM–116, Transport Airplane FOR FURTHER INFORMATION CONTACT:
Administration (NARA). For information on
Directorate, FAA, 1601 Lind Avenue SW.,
Renton, WA 98057–3356; telephone: 425–
the availability of this material at NARA, call Michael Filippell, Air Transportation
227–2125; fax: 425–227–1149. Information 202–741–6030, or go to: http:// Division, AFS–220, Flight Standards
may be emailed to: 9-ANM-116-AMOC- www.archives.gov/federal-register/cfr/ibr- Service, Federal Aviation
REQUESTS@faa.gov. Before using any locations.html. Administration, 800 Independence
approved AMOC, notify your appropriate Issued in Renton, Washington, on July 11, Avenue SW., Washington, DC 20591;
principal inspector, or lacking a principal 2016. telephone: 202–267–8166; email:
inspector, the manager of the local flight Michael Kaszycki, michael.e.filippell@faa.gov.
standards district office/certificate holding
Acting Manager, Transport Airplane SUPPLEMENTARY INFORMATION:
district office. The AMOC approval letter
Directorate, Aircraft Certification Service.
must specifically reference this AD. I. Good Cause for Immediate Adoption
(2) Contacting the Manufacturer: For any [FR Doc. 2016–17014 Filed 7–21–16; 8:45 am]
requirement in this AD to obtain corrective BILLING CODE 4910–13–P Section 553(b)(3)(B) of the
actions from a manufacturer, the action must Administrative Procedure Act (APA) (5
be accomplished using a method approved U.S.C.) authorizes agencies to dispense
by the Manager, International Branch, ANM– DEPARTMENT OF TRANSPORTATION with notice and comment procedures
116, Transport Airplane Directorate, FAA; or for rules when the agency for ‘‘good
the European Aviation Safety Agency Federal Aviation Administration cause’’ finds that those procedures are
(EASA); or Airbus’s EASA Design
Organization Approval (DOA). If approved by ‘‘impracticable, unnecessary, or contrary
14 CFR Part 91 to the public interest.’’ Under this
the DOA, the approval must include the
DOA-authorized signature. [Docket No.: FAA–2014–0225; Amdt. No. section, an agency, upon finding good
(3) Required for Compliance (RC): If any 91–331C] cause, may issue a final rule without
service information contains procedures or seeking comment prior to the
tests that are identified as RC, those RIN 2120–AK78 rulemaking.
procedures and tests must be done to comply The FAA finds that good cause exists
with this AD; any procedures or tests that are Extension of the Prohibition Against
under APA section 553(b)(3)(B) for this
not identified as RC are recommended. Those Certain Flights in the Simferopol
technical amendment to published
procedures and tests that are not identified (UKFV) and Dnipropetrovsk (UKDV)
as RC may be deviated from using accepted without public notice and comment
Flight Information Regions (FIRs);
methods in accordance with the operator’s because this amendment is limited to
Technical Amendment
maintenance or inspection program without providing additional clarity concerning
obtaining approval of an AMOC, provided AGENCY: Federal Aviation specific airspace subject to the existing
the procedures and tests identified as RC can Administration (FAA), Department of SFAR restriction, by adding latitude and
be done and the airplane can be put back in Transportation (DOT). longitude coordinates in lieu of the
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an airworthy condition. Any substitutions or names for the FIRs.
changes to procedures or tests identified as ACTION: Final rule; technical
amendment. In addition, section 553(d)(3) of the
RC require approval of an AMOC.
Administrative Procedure Act requires
(o) Related Information SUMMARY: On October 27, 2015, the publication of a substantive rule must
Refer to Mandatory Continuing Federal Aviation Administration (FAA) be made not less than 30 days before the
Airworthiness Information (MCAI) EASA AD published a final rule extending the effective date except when the agency

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Document Created: 2016-07-22 02:38:17
Document Modified: 2016-07-22 02:38:17
Category		Regulatory Information
Collection		Federal Register
sudoc Class		AE 2.7: GS 4.107: AE 2.106:
Publisher		Office of the Federal Register, National Archives and Records Administration
Section		Rules and Regulations
Action		Final rule.
Dates		This AD is effective August 26, 2016.
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.
FR Citation		81 FR 47696
RIN Number		2120-AA64
CFR Associated		Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
81 FR 47696 - Airworthiness Directives; Airbus Airplanes

DEPARTMENT OF TRANSPORTATIONFederal Aviation Administration

Federal Register Volume 81, Issue 141 (July 22, 2016)

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
