81_FR_12886 81 FR 12838 - Airworthiness Directives; AgustaWestland S.p.A. (Agusta) Helicopters

81 FR 12838 - Airworthiness Directives; AgustaWestland S.p.A. (Agusta) Helicopters

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 48 (March 11, 2016)

Page Range12838-12841
FR Document2016-05368

We propose to adopt a new airworthiness directive (AD) for certain Agusta Model AB139 and AW139 helicopters. This proposed AD would require performing operational checks of both hydraulic systems. This proposed AD is prompted by an assessment of the hydraulic systems of the helicopter following an accident. The proposed actions are intended to prevent loss of hydraulic power to the flight controls and subsequent loss of control of the helicopter.

Federal Register, Volume 81 Issue 48 (Friday, March 11, 2016)
[Federal Register Volume 81, Number 48 (Friday, March 11, 2016)]
[Proposed Rules]
[Pages 12838-12841]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-05368]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-4278; Directorate Identifier 2012-SW-022-AD]
RIN 2120-AA64


Airworthiness Directives; AgustaWestland S.p.A. (Agusta) 
Helicopters

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
certain Agusta Model AB139 and AW139 helicopters. This proposed AD 
would require performing operational checks of both hydraulic systems. 
This proposed AD is prompted by an assessment of the hydraulic systems 
of the helicopter following an accident. The proposed actions are 
intended to prevent loss of hydraulic power to the flight controls and 
subsequent loss of control of the helicopter.

DATES: We must receive comments on this proposed AD by May 10, 2016.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Docket: Go to http://www.regulations.gov. Follow the online instructions for sending your 
comments electronically.
     Fax: 202-493-2251.
     Mail: Send comments to the U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590-0001.
     Hand Delivery: Deliver to the ``Mail'' address between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket number FAA-
2016-4278 or in person at the Docket Operations Office between 9 a.m. 
and 5 p.m., Monday through Friday, except Federal holidays. The AD 
docket contains this proposed AD, the European Aviation Safety Agency 
(EASA) AD, the economic 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 service information identified in this proposed rule, contact 
AgustaWestland, Product Support Engineering, Via del Gregge, 100, 21015 
Lonate Pozzolo (VA) Italy, ATTN: Maurizio D'Angelo; telephone 39-0331-
664757; fax 39 0331-664680; or at http://www.agustawestland.com/technical-bulletins. You may review the referenced service information 
at the FAA, Office of the Regional Counsel, Southwest Region, 10101 
Hillwood Parkway, Fort Worth, Texas 76177.

FOR FURTHER INFORMATION CONTACT: Matt Wilbanks, Aviation Safety 
Engineer, Safety Management Group, Rotorcraft Directorate, FAA, 10101 
Hillwood Parkway, Fort Worth, Texas 76177; telephone (817) 222-5110; 
email [email protected].

[[Page 12839]]


SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to participate in this rulemaking by submitting 
written comments, data, or views. We also invite comments relating to 
the economic, environmental, energy, or federalism impacts that might 
result from adopting the proposals in this document. The most helpful 
comments reference a specific portion of the proposal, explain the 
reason for any recommended change, and include supporting data. To 
ensure the docket does not contain duplicate comments, commenters 
should send only one copy of written comments, or if comments are filed 
electronically, commenters should submit only one time.
    We will file in the docket all comments that we receive, as well as 
a report summarizing each substantive public contact with FAA personnel 
concerning this proposed rulemaking. Before acting on this proposal, we 
will consider all comments we receive on or before the closing date for 
comments. We will consider comments filed after the comment period has 
closed if it is possible to do so without incurring expense or delay. 
We may change this proposal in light of the comments we receive.

Discussion

    EASA, which is the Technical Agent for the Member States of the 
European Union, has issued EASA AD No. 2011-0207, dated October 20, 
2011 (EASA 2011-0207), to correct an unsafe condition for certain 
serial-numbered Agusta Model AB139 and AW139 helicopters. An accident 
involving a Model AW139 helicopter caused the tail rotor (T/R), the T/R 
gearbox, and part of the fin to detach from the aircraft, rupturing the 
hydraulic lines and draining all of the hydraulic fluid. Investigation 
following the accident resulted in an assessment of the helicopter's 
hydraulic systems. According to EASA, this assessment revealed that an 
operational check of the hydraulic systems is necessary to ensure its 
functionality. EASA advises that this condition, if not corrected, 
could lead, in the case of multiple failures, to loss of hydraulic 
power and subsequent loss of control of the helicopter. To address 
this, EASA AD 2011-0207 requires, within 50 flight hours or 2 months, 
operational checks of the power control modules and shutoff valves and 
reporting the results to the manufacturer.

FAA's Determination

    These helicopters have been approved by the aviation authority of 
Italy and are approved for operation in the United States. Pursuant to 
our bilateral agreement with Italy, EASA, its technical representative, 
has notified us of the unsafe condition described in its AD. We are 
proposing this AD because we evaluated all known relevant information 
and determined that an unsafe condition is likely to exist or develop 
on other products of the same type design.

Related Service Information Under 1 CFR Part 51

    We reviewed Agusta Bollettino Tecnico No. 139-269, dated September 
30, 2011 (BT 139-269), for Model AB139 and AW139 helicopters. BT 139-
269 contains procedures for conducting operational checks of both 
hydraulic systems to confirm correct functionality. 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.

Proposed AD Requirements

    This proposed AD would require, within 50 hours time-in-service 
(TIS), performing operational tests of the Number 1 and Number 2 
hydraulic systems power control modules (PCMs), the tail shut-off 
valve, the PCM1 and PCM2 flight control shut-off valves, and the 
emergency landing gear shut-off valve for correct functionality. 
Depending on the results of the the operational checks, this proposed 
AD would require replacing a PCM, the tail shut-off valve, a flight 
control shut-off valve, the number 2 hydraulic control panel, the 
number 1 hydraulic module, the number 1 or number 2 PCM pressure 
switch, or repairing the electrical wiring.

Differences Between This Proposed AD and the EASA AD

    The EASA AD requires reporting the results of the operational 
checks to Agusta, while the proposed AD does not. The EASA AD also 
requires compliance within 50 flight-hours or 2 months, while the 
proposed AD requires compliance within 50 hours TIS.

Costs of Compliance

    We estimate that this proposed AD would affect 102 helicopters of 
U.S. Registry. Based on an average labor rate of $85 per hour, we 
estimate that operators may incur the following costs in order to 
comply with this proposed AD.
    Performing the operational checks of the hydraulic systems would 
require about 2 work-hours for a total cost per helicopter of $170 and 
a total cost to U.S. operators of $17,340.
    Replacing a PCM would require about 3 work-hours and required parts 
would cost about $87,136, for a cost per helicopter of $87,391.
    Replacing a tail or flight control shut-off valve would require 
about 2 work-hours, and required parts would cost about $7,512, for a 
cost per helicopter of $7,682.
    Replacing the number 2 hydraulic control panel would require about 
2 work-hours, and required parts would cost about $8,165, for a cost 
per helicopter of $8,335.
    Replacing the number 1 hydraulic module would require about 4 work-
hours, and required parts would cost about $87,137, for a cost per 
helicopter of $87,477.
    Replacing a PCM pressure switch would require about 2 work-hours, 
and required parts would cost about $6,974, for a cost per helicopter 
of $7,144.
    Repairing the electrical wiring would require about 2 work-hours, 
and required parts would cost about $45, for a cost per helicopter of 
$215.

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.

[[Page 12840]]

    For the reasons discussed, 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 to the extent that 
it justifies making a regulatory distinction; 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.
    We prepared an economic evaluation of the estimated costs to comply 
with this proposed AD and placed it in the AD docket.

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):

Agustawestland S.P.A. (Agusta): Docket No. FAA-2016-4278; 
Directorate Identifier 2012-SW-022-AD.

(a) Applicability

    This AD applies to Agusta Model AB139 and AW139 helicopters, all 
serial numbers except serial number 31007, 31094, 31293, 31301, 
31303, 31313, and 31329, certificated in any category.

(b) Unsafe Condition

    This AD defines the unsafe condition as an inoperative hydraulic 
shut-off valve, which could result in loss of hydraulic power and 
subsequent loss of control of the helicopter.

(c) Comments Due Date

    We must receive comments by May 10, 2016.

(d) Compliance

    You are responsible for performing each action required by this 
AD within the specified compliance time unless it has already been 
accomplished prior to that time.

(e) Required Actions

    Within 50 hours time-in service:
    (1) Perform an operational test of each Number 1 and Number 2 
power control module (PCM). If the fluid level in the reservoir 
changes more than 5mm (0.196 in) in an hour, replace the affected 
PCM.
    (2) Perform an operational test of each tail shut-off valve. If 
the 2 SERVO caution message is not illuminated and the UTIL SOV2 and 
TR SOV indications are in the open position:
    (i) Disconnect the Tail Shutoff valve connector, HP4P1.
    (ii) Disconnect the PCM2 connectors, A44P3 and A44P12.
    (iii) Disconnect the TB38 terminal board connector, TB38P1.
    (iv) Perform a continuity test from HP4P1-1 to A44P12-16, from 
HP4P1-2 to TB38P1-D, and from HP4P1-4 to A44P3-6.
    (v) If there is no continuity, repair or replace the defective 
wiring.
    (vi) If there is continuity, release the test lever of the PCM2 
to the DOWN NORM position.
    (vii) If the TRSVO indication stays in the closed position, 
replace the tail shutoff valve.
    (3) Perform an operational test of the PCM 2 flight control 
shut-off valve as described in the Compliance Instructions, 
paragraphs 5.1. through 5.5., of Agusta Bollettino Tecnico No. 139-
269, dated September 30, 2011 (BT 139-269).
    (i) If the 2 SERVO caution message is illuminated:
    (A) On the hydraulic control panel, lift the guard of the SOV1/
SOV2 switch and set it to SOV2 (closed position). Make sure that the 
2 HYD PRESS caution message and the HYD 2 PRESS warning light on the 
hydraulic control panel are illuminated.
    (B) Reset the SOV1/SOV2 switch to the open position.
    (C) If the 2 HYD PRESS and 2 SERVO caution messages remain 
illuminated:
    (1) Disconnect the PL14P1 and PL14P2 connectors from the 
hydraulic control panel.
    (2) Disconnect the A1-1P4 connector from the MAU1.
    (3) Disconnect the A2-1P3 connector from the MAU2.
    (4) Disconnect the A44P3 connector from the Number 2 PCM.
    (5) Disconnect the PL1P3 connector from the circuit breaker 
panel.
    (6) Perform a continuity test from PL14P1-J to A1-1P4-18, from 
PL14P1-D to PL1P3-q, from PL14P2-J to A44P3-5, and from PL14P2-T to 
A2-1P3-34. If there is no continuity, repair or replace the 
defective wiring.
    (7) If the HYD PRESS and 2 SERVO caution messages remain 
illuminated, replace the number 2 hydraulic power module.
    (ii) If the 2 HYD PRESS caution message is illuminated, the HYD 
2 pressure indication is more than 190 bar (2,755 lbf/sq in), and 
the SOV2 shutoff valve is in the open position, replace the pressure 
switch on the Number 2 PCM.
    (iii) If the closure of SOV 2 is indicated on the MFD hydraulic 
synoptic page, before further flight, replace the Number 2 PCM.
    (4) Perform an operational test of the PCM 1 flight control 
shut-off valve as described in the Compliance Instructions, 
paragraphs 6.1. through 6.4., of BT 139-269.
    (i) If the 1 SERVO caution message is illuminated:
    (A) On the hydraulic control panel, lift the guard of the SOV1/
SOV2 switch and set it to SOV1 (closed position). Make sure that the 
1 HYD PRESS caution message and the HYD 1 PRESS warning light on the 
hydraulic control panel are illuminated.
    (B) Reset the SOV1/SOV2 switch to the open position. If the 1 
HYD PRESS and 1 SERVO caution messages remain illuminated:
    (1) Disconnect the PL14P1 and PL14P2 connectors from the 
hydraulic control panel.
    (2) Disconnect the A1-1P4 connector from the MAU1.
    (3) Disconnect the A2-1P3 connector from the MAU2.
    (4) Disconnect the A45P3 connector from the Number 1 PCM.
    (5) Disconnect the PL1P3 connector from the circuit breaker 
panel.
    (6) Perform a continuity test from PL14P1-J to A1-1P4-18, from 
PL14P1-E to A45P3-5, from PL14P1-D to PL1P3-q, and from PL14P2-T to 
A2-1P3-34. If there is no continuity, repair or replace the 
defective wiring.
    (7) If the HYD PRESS and 1 SERVO caution messages remain 
illuminated, replace the Number 1 hydraulic control panel.
    (ii) If the 1 HYD PRESS caution message is illuminated, the HYD 
1 pressure indication is more than 190 bar (2,755 lbf/sq in), and 
the SOV1 shutoff valve is in the open position, replace the pressure 
switch on the Number 1 PCM.
    (iii) If the closure of SOV 1 is indicated on the MFD hydraulic 
synoptic page, before further flight, replace the Number 1 PCM.
    (4) Perform an operational test of the emergency landing gear 
shutoff valve as described in the Compliance Instructions, 
paragraphs 7.1. through 7.4., of BT 139-269.
    (i) If the EMERG L/G PRESS caution message is illuminated, the 
HYD 1 pressure indication is more than 190 bar (2,755 lbf/sq in), 
and the UTIL SOV1 (LDG GEAR EMER) shutoff valve is in the open 
position, replace the pressure switch on the Number 1 PCM.
    (ii) If the 1 HYD MIN caution message is illuminated, inspect 
the fluid level on the Number 1 PCM and inspect the Number 1 main 
hydraulic system for leaks.
    (A) If the fluid level is between the FULL and ADD marks, or if 
there are no hydraulic fluid leaks, perform an operational test of 
the level switches. If the 1 HYD MIN caution message is illuminated, 
replace the Number 1 PCM.
    (B) If there is a hydraulic fluid leak:
    (1) Replace all leaking parts and lines or repair the leak.
    (2) If the 1 HYD MIN caution message remains illuminated, 
perform an operational test of the level switches.
    (3) If the 1 HYD MIN caution message remains illuminated, 
replace the Number 1 PCM.

(f) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Safety Management Group, FAA, may approve AMOCs 
for this AD. Send your proposal to Matt Wilbanks, Aviation Safety 
Engineer, Safety Management Group, Rotorcraft Directorate, FAA, 
10101 Hillwood Parkway, Fort Worth, Texas 76177;

[[Page 12841]]

telephone (817) 222-5110; email [email protected].
    (2) For operations conducted under a 14 CFR part 119 operating 
certificate or under 14 CFR part 91, subpart K, we suggest that you 
notify your principal inspector, or lacking a principal inspector, 
the manager of the local flight standards district office or 
certificate holding district office before operating any aircraft 
complying with this AD through an AMOC.

(g) Additional Information

    The subject of this AD is addressed in European Aviation Safety 
Agency (EASA) AD No. 2011-0207, dated October 20, 2011. You may view 
the EASA AD on the Internet at http://www.regulations.gov in Docket 
No. FAA[hyphen]2016-4278.

 (h) Subject

    Joint Aircraft Service Component (JASC) Code: 2900: Hydraulic 
Power.


    Issued in Fort Worth, Texas, on March 3, 2016.
Scott A. Horn,
Acting Manager, Rotorcraft Directorate, Aircraft Certification Service.

[FR Doc. 2016-05368 Filed 3-10-16; 8:45 am]
 BILLING CODE 4910-13-P



                                                      12838                     Federal Register / Vol. 81, No. 48 / Friday, March 11, 2016 / Proposed Rules

                                                        3. Will not affect intrastate aviation in             AS365–11.00.02, Revision 2, dated April 23,           Agusta Model AB139 and AW139
                                                      Alaska to the extent that it justifies                  2015.                                                 helicopters. This proposed AD would
                                                      making a regulatory distinction; and                    (f) Credit for Previously Completed Actions           require performing operational checks
                                                        4. Will not have a significant                                                                              of both hydraulic systems. This
                                                                                                                 Actions accomplished before the effective
                                                      economic impact, positive or negative,                  date of this AD in accordance with Airbus             proposed AD is prompted by an
                                                      on a substantial number of small entities               Helicopters Modification (MOD) 0711B68 for            assessment of the hydraulic systems of
                                                      under the criteria of the Regulatory                    helicopters without external life rafts or MOD        the helicopter following an accident.
                                                      Flexibility Act.                                        0711B68 and MOD 0711B67 for helicopters               The proposed actions are intended to
                                                        We prepared an economic evaluation                    with external life rafts are considered               prevent loss of hydraulic power to the
                                                      of the estimated costs to comply with                   acceptable for compliance with this AD.               flight controls and subsequent loss of
                                                      this proposed AD and placed it in the                   (g) Alternative Methods of Compliance                 control of the helicopter.
                                                      AD docket.                                              (AMOCs)                                               DATES: We must receive comments on
                                                      List of Subjects in 14 CFR Part 39                         (1) The Manager, Safety Management                 this proposed AD by May 10, 2016.
                                                                                                              Group, FAA, may approve AMOCs for this                ADDRESSES: You may send comments by
                                                        Air transportation, Aircraft, Aviation                AD. Send your proposal to: David Hatfield,            any of the following methods:
                                                      safety, Incorporation by reference,                     Aviation Safety Engineer, Safety Management              • Federal eRulemaking Docket: Go to
                                                      Safety.                                                 Group, Rotorcraft Directorate, FAA, 10101             http://www.regulations.gov. Follow the
                                                      The Proposed Amendment                                  Hillwood Pkwy, Fort Worth, TX 76177;                  online instructions for sending your
                                                                                                              telephone (817) 222–5110; email 9–ASW–                comments electronically.
                                                        Accordingly, under the authority                      FTW–AMOC-Requests@faa.gov.                               • Fax: 202–493–2251.
                                                      delegated to me by the Administrator,                      (2) For operations conducted under a 14               • Mail: Send comments to the U.S.
                                                      the FAA proposes to amend 14 CFR part                   CFR part 119 operating certificate or under
                                                                                                                                                                    Department of Transportation, Docket
                                                      39 as follows:                                          14 CFR part 91, subpart K, we suggest that
                                                                                                              you notify your principal inspector, or               Operations, M–30, West Building
                                                                                                              lacking a principal inspector, the manager of         Ground Floor, Room W12–140, 1200
                                                      PART 39—AIRWORTHINESS
                                                                                                              the local flight standards district office or         New Jersey Avenue SE., Washington,
                                                      DIRECTIVES
                                                                                                              certificate holding district office before            DC 20590–0001.
                                                      ■ 1. The authority citation for part 39                 operating any aircraft complying with this               • Hand Delivery: Deliver to the
                                                      continues to read as follows:                           AD through an AMOC.                                   ‘‘Mail’’ address between 9 a.m. and 5
                                                                                                              (h) Additional Information
                                                                                                                                                                    p.m., Monday through Friday, except
                                                          Authority: 49 U.S.C. 106(g), 40113, 44701.                                                                Federal holidays.
                                                                                                                The subject of this AD is addressed in the
                                                      § 39.13   [Amended]                                     European Aviation Safety Agency (EASA) AD             Examining the AD Docket
                                                      ■ 2. The FAA amends § 39.13 by adding                   No. 2015–0068–E, dated April 29, 2015. You               You may examine the AD docket on
                                                      the following new airworthiness                         may view the EASA AD on the Internet at
                                                                                                              http://www.regulations.gov by searching for
                                                                                                                                                                    the Internet at http://
                                                      directive (AD):                                                                                               www.regulations.gov by searching for
                                                                                                              and locating it in Docket No. FAA–2015–
                                                      Airbus Helicopters: Docket No. FAA–2015–                6033.                                                 and locating Docket number FAA–
                                                          6033; Directorate Identifier 2015–SW–                                                                     2016–4278 or in person at the Docket
                                                          019–AD.                                             (i) Subject                                           Operations Office between 9 a.m. and 5
                                                      (a) Applicability                                          Joint Aircraft Service Component (JASC)            p.m., Monday through Friday, except
                                                                                                              Code: 1100, Placards and Markings.                    Federal holidays. The AD docket
                                                        This AD applies to Airbus Helicopters
                                                      Model AS 365 N3 helicopters, certificated in              Issued in Fort Worth, Texas, on February            contains this proposed AD, the
                                                      any category.                                           29, 2016.                                             European Aviation Safety Agency
                                                                                                              Scott A. Horn,                                        (EASA) AD, the economic evaluation,
                                                      (b) Unsafe Condition                                                                                          any comments received, and other
                                                                                                              Acting Manager, Rotorcraft Directorate,
                                                        This AD defines the unsafe condition as               Aircraft Certification Service.                       information. The street address for the
                                                      missing or incorrectly located information for                                                                Docket Operations Office (telephone
                                                                                                              [FR Doc. 2016–05369 Filed 3–10–16; 8:45 am]
                                                      exiting a helicopter. This condition could                                                                    800–647–5527) is in the ADDRESSES
                                                      result in failure to jettison cabin doors during        BILLING CODE 4910–13–P
                                                                                                                                                                    section. Comments will be available in
                                                      an emergency, resulting in death or injury of
                                                      helicopter occupants.                                                                                         the AD docket shortly after receipt.
                                                                                                              DEPARTMENT OF TRANSPORTATION                             For service information identified in
                                                      (c) Comments Due Date                                                                                         this proposed rule, contact
                                                         We must receive comments by May 10,                  Federal Aviation Administration                       AgustaWestland, Product Support
                                                      2016.                                                                                                         Engineering, Via del Gregge, 100, 21015
                                                      (d) Compliance                                          14 CFR Part 39                                        Lonate Pozzolo (VA) Italy, ATTN:
                                                                                                                                                                    Maurizio D’Angelo; telephone 39–0331–
                                                        You are responsible for performing each               [Docket No. FAA–2016–4278; Directorate
                                                                                                                                                                    664757; fax 39 0331–664680; or at
                                                      action required by this AD within the                   Identifier 2012–SW–022–AD]
                                                      specified compliance time unless it has
                                                                                                                                                                    http://www.agustawestland.com/
                                                      already been accomplished prior to that time.           RIN 2120–AA64                                         technical-bulletins. You may review the
                                                                                                                                                                    referenced service information at the
                                                      (e) Required Actions                                    Airworthiness Directives;                             FAA, Office of the Regional Counsel,
asabaliauskas on DSK3SPTVN1PROD with PROPOSALS




                                                         Within 50 hours time-in-service:                     AgustaWestland S.p.A. (Agusta)                        Southwest Region, 10101 Hillwood
                                                         (1) Inspect the cabin and cockpit for labels,        Helicopters                                           Parkway, Fort Worth, Texas 76177.
                                                      placards, and markings that provide jettison                                                                  FOR FURTHER INFORMATION CONTACT: Matt
                                                      procedure instructions for cabin doors.                 AGENCY: Federal Aviation
                                                                                                              Administration (FAA), DOT.                            Wilbanks, Aviation Safety Engineer,
                                                         (2) For the left and right side, remove any
                                                      existing label, placard, and marking and                ACTION: Notice of proposed rulemaking                 Safety Management Group, Rotorcraft
                                                      install placards in accordance with the                 (NPRM).                                               Directorate, FAA, 10101 Hillwood
                                                      Accomplishment Instructions, paragraph                                                                        Parkway, Fort Worth, Texas 76177;
                                                      3.B.2 and Figures 1 through 6, of Airbus                SUMMARY:  We propose to adopt a new                   telephone (817) 222–5110; email
                                                      Helicopters Alert Service Bulletin No.                  airworthiness directive (AD) for certain              matt.wilbanks@faa.gov.


                                                 VerDate Sep<11>2014   16:25 Mar 10, 2016   Jkt 238001   PO 00000   Frm 00007   Fmt 4702   Sfmt 4702   E:\FR\FM\11MRP1.SGM   11MRP1


                                                                                Federal Register / Vol. 81, No. 48 / Friday, March 11, 2016 / Proposed Rules                                           12839

                                                      SUPPLEMENTARY INFORMATION:                              FAA’s Determination                                     Performing the operational checks of
                                                                                                                These helicopters have been approved                the hydraulic systems would require
                                                      Comments Invited                                                                                              about 2 work-hours for a total cost per
                                                                                                              by the aviation authority of Italy and are
                                                         We invite you to participate in this                 approved for operation in the United                  helicopter of $170 and a total cost to
                                                      rulemaking by submitting written                        States. Pursuant to our bilateral                     U.S. operators of $17,340.
                                                      comments, data, or views. We also                                                                               Replacing a PCM would require about
                                                                                                              agreement with Italy, EASA, its
                                                                                                                                                                    3 work-hours and required parts would
                                                      invite comments relating to the                         technical representative, has notified us
                                                                                                                                                                    cost about $87,136, for a cost per
                                                      economic, environmental, energy, or                     of the unsafe condition described in its
                                                                                                                                                                    helicopter of $87,391.
                                                      federalism impacts that might result                    AD. We are proposing this AD because                    Replacing a tail or flight control shut-
                                                      from adopting the proposals in this                     we evaluated all known relevant                       off valve would require about 2 work-
                                                      document. The most helpful comments                     information and determined that an                    hours, and required parts would cost
                                                      reference a specific portion of the                     unsafe condition is likely to exist or                about $7,512, for a cost per helicopter of
                                                      proposal, explain the reason for any                    develop on other products of the same                 $7,682.
                                                      recommended change, and include                         type design.                                            Replacing the number 2 hydraulic
                                                      supporting data. To ensure the docket                   Related Service Information Under 1                   control panel would require about 2
                                                      does not contain duplicate comments,                    CFR Part 51                                           work-hours, and required parts would
                                                      commenters should send only one copy                                                                          cost about $8,165, for a cost per
                                                      of written comments, or if comments are                   We reviewed Agusta Bollettino                       helicopter of $8,335.
                                                      filed electronically, commenters should                 Tecnico No. 139–269, dated September                    Replacing the number 1 hydraulic
                                                      submit only one time.                                   30, 2011 (BT 139–269), for Model                      module would require about 4 work-
                                                                                                              AB139 and AW139 helicopters. BT 139–                  hours, and required parts would cost
                                                         We will file in the docket all                       269 contains procedures for conducting
                                                      comments that we receive, as well as a                                                                        about $87,137, for a cost per helicopter
                                                                                                              operational checks of both hydraulic                  of $87,477.
                                                      report summarizing each substantive                     systems to confirm correct functionality.               Replacing a PCM pressure switch
                                                      public contact with FAA personnel                       This service information is reasonably                would require about 2 work-hours, and
                                                      concerning this proposed rulemaking.                    available because the interested parties              required parts would cost about $6,974,
                                                      Before acting on this proposal, we will                 have access to it through their normal                for a cost per helicopter of $7,144.
                                                      consider all comments we receive on or                  course of business or by the means                      Repairing the electrical wiring would
                                                      before the closing date for comments.                   identified in the ADDRESSES section.                  require about 2 work-hours, and
                                                      We will consider comments filed after                                                                         required parts would cost about $45, for
                                                      the comment period has closed if it is                  Proposed AD Requirements
                                                                                                                                                                    a cost per helicopter of $215.
                                                      possible to do so without incurring                       This proposed AD would require,
                                                      expense or delay. We may change this                    within 50 hours time-in-service (TIS),                Authority for This Rulemaking
                                                      proposal in light of the comments we                    performing operational tests of the                      Title 49 of the United States Code
                                                      receive.                                                Number 1 and Number 2 hydraulic                       specifies the FAA’s authority to issue
                                                                                                              systems power control modules (PCMs),                 rules on aviation safety. Subtitle I,
                                                      Discussion                                              the tail shut-off valve, the PCM1 and                 section 106, describes the authority of
                                                         EASA, which is the Technical Agent                   PCM2 flight control shut-off valves, and              the FAA Administrator. ‘‘Subtitle VII:
                                                      for the Member States of the European                   the emergency landing gear shut-off                   Aviation Programs,’’ describes in more
                                                      Union, has issued EASA AD No. 2011–                     valve for correct functionality.                      detail the scope of the Agency’s
                                                      0207, dated October 20, 2011 (EASA                      Depending on the results of the the                   authority.
                                                      2011–0207), to correct an unsafe                        operational checks, this proposed AD                     We are issuing this rulemaking under
                                                      condition for certain serial-numbered                   would require replacing a PCM, the tail               the authority described in ‘‘Subtitle VII,
                                                      Agusta Model AB139 and AW139                            shut-off valve, a flight control shut-off             Part A, Subpart III, Section 44701:
                                                      helicopters. An accident involving a                    valve, the number 2 hydraulic control                 General requirements.’’ Under that
                                                      Model AW139 helicopter caused the tail                  panel, the number 1 hydraulic module,                 section, Congress charges the FAA with
                                                                                                              the number 1 or number 2 PCM pressure                 promoting safe flight of civil aircraft in
                                                      rotor (T/R), the T/R gearbox, and part of
                                                                                                              switch, or repairing the electrical                   air commerce by prescribing regulations
                                                      the fin to detach from the aircraft,
                                                                                                              wiring.                                               for practices, methods, and procedures
                                                      rupturing the hydraulic lines and
                                                                                                                                                                    the Administrator finds necessary for
                                                      draining all of the hydraulic fluid.                    Differences Between This Proposed AD
                                                                                                                                                                    safety in air commerce. This regulation
                                                      Investigation following the accident                    and the EASA AD
                                                                                                                                                                    is within the scope of that authority
                                                      resulted in an assessment of the                          The EASA AD requires reporting the                  because it addresses an unsafe condition
                                                      helicopter’s hydraulic systems.                         results of the operational checks to                  that is likely to exist or develop on
                                                      According to EASA, this assessment                      Agusta, while the proposed AD does                    products identified in this rulemaking
                                                      revealed that an operational check of the               not. The EASA AD also requires                        action.
                                                      hydraulic systems is necessary to ensure                compliance within 50 flight-hours or 2
                                                      its functionality. EASA advises that this               months, while the proposed AD requires                Regulatory Findings
                                                      condition, if not corrected, could lead,                compliance within 50 hours TIS.                         We determined that this proposed AD
asabaliauskas on DSK3SPTVN1PROD with PROPOSALS




                                                      in the case of multiple failures, to loss                                                                     would not have federalism implications
                                                      of hydraulic power and subsequent loss                  Costs of Compliance                                   under Executive Order 13132. This
                                                      of control of the helicopter. To address                  We estimate that this proposed AD                   proposed AD would not have a
                                                      this, EASA AD 2011–0207 requires,                       would affect 102 helicopters of U.S.                  substantial direct effect on the States, on
                                                      within 50 flight hours or 2 months,                     Registry. Based on an average labor rate              the relationship between the national
                                                      operational checks of the power control                 of $85 per hour, we estimate that                     Government and the States, or on the
                                                      modules and shutoff valves and                          operators may incur the following costs               distribution of power and
                                                      reporting the results to the                            in order to comply with this proposed                 responsibilities among the various
                                                      manufacturer.                                           AD.                                                   levels of government.


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                                                      12840                     Federal Register / Vol. 81, No. 48 / Friday, March 11, 2016 / Proposed Rules

                                                        For the reasons discussed, I certify                  module (PCM). If the fluid level in the                  (A) On the hydraulic control panel, lift the
                                                      this proposed regulation:                               reservoir changes more than 5mm (0.196 in)            guard of the SOV1/SOV2 switch and set it to
                                                        1. Is not a ‘‘significant regulatory                  in an hour, replace the affected PCM.                 SOV1 (closed position). Make sure that the 1
                                                      action’’ under Executive Order 12866;                      (2) Perform an operational test of each tail       HYD PRESS caution message and the HYD 1
                                                        2. Is not a ‘‘significant rule’’ under the            shut-off valve. If the 2 SERVO caution                PRESS warning light on the hydraulic control
                                                                                                              message is not illuminated and the UTIL               panel are illuminated.
                                                      DOT Regulatory Policies and Procedures                  SOV2 and TR SOV indications are in the                   (B) Reset the SOV1/SOV2 switch to the
                                                      (44 FR 11034, February 26, 1979);                       open position:                                        open position. If the 1 HYD PRESS and 1
                                                        3. Will not affect intrastate aviation in                (i) Disconnect the Tail Shutoff valve              SERVO caution messages remain
                                                      Alaska to the extent that it justifies                  connector, HP4P1.                                     illuminated:
                                                      making a regulatory distinction; and                       (ii) Disconnect the PCM2 connectors,                  (1) Disconnect the PL14P1 and PL14P2
                                                        4. Will not have a significant                        A44P3 and A44P12.                                     connectors from the hydraulic control panel.
                                                      economic impact, positive or negative,                     (iii) Disconnect the TB38 terminal board              (2) Disconnect the A1–1P4 connector from
                                                      on a substantial number of small entities               connector, TB38P1.                                    the MAU1.
                                                      under the criteria of the Regulatory                       (iv) Perform a continuity test from HP4P1–            (3) Disconnect the A2–1P3 connector from
                                                                                                              1 to A44P12–16, from HP4P1–2 to TB38P1–               the MAU2.
                                                      Flexibility Act.                                        D, and from HP4P1–4 to A44P3–6.                          (4) Disconnect the A45P3 connector from
                                                        We prepared an economic evaluation                       (v) If there is no continuity, repair or           the Number 1 PCM.
                                                      of the estimated costs to comply with                   replace the defective wiring.                            (5) Disconnect the PL1P3 connector from
                                                      this proposed AD and placed it in the                      (vi) If there is continuity, release the test      the circuit breaker panel.
                                                      AD docket.                                              lever of the PCM2 to the DOWN NORM                       (6) Perform a continuity test from PL14P1–
                                                                                                              position.                                             J to A1–1P4–18, from PL14P1–E to A45P3–
                                                      List of Subjects in 14 CFR Part 39                         (vii) If the TRSVO indication stays in the         5, from PL14P1–D to PL1P3-q, and from
                                                        Air transportation, Aircraft, Aviation                closed position, replace the tail shutoff valve.      PL14P2–T to A2–1P3–34. If there is no
                                                      safety, Incorporation by reference,                        (3) Perform an operational test of the PCM         continuity, repair or replace the defective
                                                      Safety.                                                 2 flight control shut-off valve as described in       wiring.
                                                                                                              the Compliance Instructions, paragraphs 5.1.             (7) If the HYD PRESS and 1 SERVO caution
                                                      The Proposed Amendment                                  through 5.5., of Agusta Bollettino Tecnico            messages remain illuminated, replace the
                                                        Accordingly, under the authority                      No. 139–269, dated September 30, 2011 (BT             Number 1 hydraulic control panel.
                                                                                                              139–269).                                                (ii) If the 1 HYD PRESS caution message
                                                      delegated to me by the Administrator,
                                                                                                                 (i) If the 2 SERVO caution message is              is illuminated, the HYD 1 pressure indication
                                                      the FAA proposes to amend 14 CFR part                   illuminated:                                          is more than 190 bar (2,755 lbf/sq in), and the
                                                      39 as follows:                                             (A) On the hydraulic control panel, lift the       SOV1 shutoff valve is in the open position,
                                                                                                              guard of the SOV1/SOV2 switch and set it to           replace the pressure switch on the Number
                                                      PART 39—AIRWORTHINESS                                   SOV2 (closed position). Make sure that the 2          1 PCM.
                                                      DIRECTIVES                                              HYD PRESS caution message and the HYD 2                  (iii) If the closure of SOV 1 is indicated on
                                                                                                              PRESS warning light on the hydraulic control          the MFD hydraulic synoptic page, before
                                                      ■ 1. The authority citation for part 39                 panel are illuminated.                                further flight, replace the Number 1 PCM.
                                                      continues to read as follows:                              (B) Reset the SOV1/SOV2 switch to the                 (4) Perform an operational test of the
                                                          Authority: 49 U.S.C. 106(g), 40113, 44701.          open position.                                        emergency landing gear shutoff valve as
                                                                                                                 (C) If the 2 HYD PRESS and 2 SERVO                 described in the Compliance Instructions,
                                                      § 39.13   [Amended]                                     caution messages remain illuminated:                  paragraphs 7.1. through 7.4., of BT 139–269.
                                                      ■ 2. The FAA amends § 39.13 by adding                      (1) Disconnect the PL14P1 and PL14P2                  (i) If the EMERG L/G PRESS caution
                                                      the following new airworthiness                         connectors from the hydraulic control panel.          message is illuminated, the HYD 1 pressure
                                                      directive (AD):                                            (2) Disconnect the A1–1P4 connector from           indication is more than 190 bar (2,755 lbf/sq
                                                                                                              the MAU1.                                             in), and the UTIL SOV1 (LDG GEAR EMER)
                                                      Agustawestland S.P.A. (Agusta): Docket No.                 (3) Disconnect the A2–1P3 connector from           shutoff valve is in the open position, replace
                                                         FAA–2016–4278; Directorate Identifier                the MAU2.                                             the pressure switch on the Number 1 PCM.
                                                         2012–SW–022–AD.                                         (4) Disconnect the A44P3 connector from               (ii) If the 1 HYD MIN caution message is
                                                      (a) Applicability                                       the Number 2 PCM.                                     illuminated, inspect the fluid level on the
                                                                                                                 (5) Disconnect the PL1P3 connector from            Number 1 PCM and inspect the Number 1
                                                        This AD applies to Agusta Model AB139                 the circuit breaker panel.                            main hydraulic system for leaks.
                                                      and AW139 helicopters, all serial numbers                  (6) Perform a continuity test from PL14P1–            (A) If the fluid level is between the FULL
                                                      except serial number 31007, 31094, 31293,               J to A1–1P4–18, from PL14P1–D to PL1P3-q,             and ADD marks, or if there are no hydraulic
                                                      31301, 31303, 31313, and 31329, certificated            from PL14P2–J to A44P3–5, and from                    fluid leaks, perform an operational test of the
                                                      in any category.                                        PL14P2–T to A2–1P3–34. If there is no                 level switches. If the 1 HYD MIN caution
                                                      (b) Unsafe Condition                                    continuity, repair or replace the defective           message is illuminated, replace the Number
                                                                                                              wiring.                                               1 PCM.
                                                        This AD defines the unsafe condition as an
                                                                                                                 (7) If the HYD PRESS and 2 SERVO caution              (B) If there is a hydraulic fluid leak:
                                                      inoperative hydraulic shut-off valve, which
                                                                                                              messages remain illuminated, replace the                 (1) Replace all leaking parts and lines or
                                                      could result in loss of hydraulic power and
                                                                                                              number 2 hydraulic power module.                      repair the leak.
                                                      subsequent loss of control of the helicopter.
                                                                                                                 (ii) If the 2 HYD PRESS caution message               (2) If the 1 HYD MIN caution message
                                                      (c) Comments Due Date                                   is illuminated, the HYD 2 pressure indication         remains illuminated, perform an operational
                                                         We must receive comments by May 10,                  is more than 190 bar (2,755 lbf/sq in), and the       test of the level switches.
                                                      2016.                                                   SOV2 shutoff valve is in the open position,              (3) If the 1 HYD MIN caution message
                                                                                                              replace the pressure switch on the Number             remains illuminated, replace the Number 1
asabaliauskas on DSK3SPTVN1PROD with PROPOSALS




                                                      (d) Compliance                                          2 PCM.                                                PCM.
                                                        You are responsible for performing each                  (iii) If the closure of SOV 2 is indicated on
                                                                                                              the MFD hydraulic synoptic page, before               (f) Alternative Methods of Compliance
                                                      action required by this AD within the
                                                                                                              further flight, replace the Number 2 PCM.             (AMOCs)
                                                      specified compliance time unless it has
                                                      already been accomplished prior to that time.              (4) Perform an operational test of the PCM            (1) The Manager, Safety Management
                                                                                                              1 flight control shut-off valve as described in       Group, FAA, may approve AMOCs for this
                                                      (e) Required Actions                                    the Compliance Instructions, paragraphs 6.1.          AD. Send your proposal to Matt Wilbanks,
                                                         Within 50 hours time-in service:                     through 6.4., of BT 139–269.                          Aviation Safety Engineer, Safety Management
                                                         (1) Perform an operational test of each                 (i) If the 1 SERVO caution message is              Group, Rotorcraft Directorate, FAA, 10101
                                                      Number 1 and Number 2 power control                     illuminated:                                          Hillwood Parkway, Fort Worth, Texas 76177;



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                                                                                Federal Register / Vol. 81, No. 48 / Friday, March 11, 2016 / Proposed Rules                                          12841

                                                      telephone (817) 222–5110; email 9-ASW-                  DATES:  We must receive comments on                   comments on the overall regulatory,
                                                      FTW-AMOC-Requests@faa.gov.                              this proposed AD by May 10, 2016.                     economic, environmental, and energy
                                                         (2) For operations conducted under a 14                                                                    aspects of this proposed AD. We will
                                                      CFR part 119 operating certificate or under             ADDRESSES: You may send comments,
                                                      14 CFR part 91, subpart K, we suggest that              using the procedures found in 14 CFR                  consider all comments received by the
                                                      you notify your principal inspector, or                 11.43 and 11.45, by any of the following              closing date and may amend this
                                                      lacking a principal inspector, the manager of           methods:                                              proposed AD because of those
                                                      the local flight standards district office or              • Federal eRulemaking Portal: Go to                comments.
                                                      certificate holding district office before              http://www.regulations.gov. Follow the
                                                      operating any aircraft complying with this                                                                      We will post all comments we
                                                                                                              instructions for submitting comments.                 receive, without change, to http://
                                                      AD through an AMOC.
                                                                                                                 • Fax: 202–493–2251.                               www.regulations.gov, including any
                                                      (g) Additional Information                                 • Mail: U.S. Department of                         personal information you provide. We
                                                         The subject of this AD is addressed in               Transportation, Docket Operations, M–                 will also post a report summarizing each
                                                      European Aviation Safety Agency (EASA) AD               30, West Building Ground Floor, Room                  substantive verbal contact we receive
                                                      No. 2011–0207, dated October 20, 2011. You              W12–140, 1200 New Jersey Avenue SE.,
                                                      may view the EASA AD on the Internet at                                                                       about this proposed AD.
                                                                                                              Washington, DC 20590.
                                                      http://www.regulations.gov in Docket No.                   • Hand Delivery: Deliver to Mail                   Discussion
                                                      FAA-2016–4278.
                                                                                                              address above between 9 a.m. and 5
                                                      (h) Subject                                             p.m., Monday through Friday, except                      On August 30, 2006, we issued AD
                                                        Joint Aircraft Service Component (JASC)               Federal holidays.                                     2006–18–14, Amendment 39–14753 (71
                                                      Code: 2900: Hydraulic Power.                               For service information identified in              FR 52988, September 8, 2006), for all
                                                                                                              this proposed AD, contact Rolls-Royce                 RRD Tay 650–15 and Tay 651–54
                                                        Issued in Fort Worth, Texas, on March 3,                                                                    turbofan engines. AD 2006–18–14
                                                      2016.                                                   Deutschland Ltd & Co KG, Eschenweg
                                                                                                              11, Dahlewitz, 15827 Blankenfelde-                    requires calculating and re-establishing
                                                      Scott A. Horn,
                                                                                                              Mahlow, Germany; phone: 49–0–33–                      the cyclic life of stage 1 HPT disks, P/
                                                      Acting Manager, Rotorcraft Directorate,                                                                       N JR32013 and P/N JR33838, and stage
                                                      Aircraft Certification Service.
                                                                                                              7086–1064; fax: 49–0–33–7086–3276.
                                                                                                              You may view this service information                 1 LPT disk, P/N JR32318A, that have
                                                      [FR Doc. 2016–05368 Filed 3–10–16; 8:45 am]             at the FAA, Engine & Propeller                        been exposed to different engine flight
                                                      BILLING CODE 4910–13–P                                  Directorate, 1200 District Avenue,                    plan profiles. AD 2006–18–14 also
                                                                                                              Burlington, MA. For information on the                requires removing from service, using a
                                                                                                              availability of this material at the FAA,             drawdown schedule, those stage 1 HPT
                                                      DEPARTMENT OF TRANSPORTATION                            call 781–238–7125.                                    disks and stage 1 LPT disks operated
                                                      Federal Aviation Administration                         Examining the AD Docket                               under Tay 650–15 engine flight plan
                                                                                                                                                                    profiles A, B, C, or D; or operated under
                                                                                                                You may examine the AD docket on                    the Tay 651–54 engine datum flight
                                                      14 CFR Part 39
                                                                                                              the Internet at http://                               profile, at reduced cyclic life limits. AD
                                                      [Docket No. FAA–2006–25513; Directorate                 www.regulations.gov by searching for                  2006–18–14 resulted from RRD
                                                      Identifier 99–NE–61–AD]                                 and locating Docket No. FAA–2006–                     updating their low-cycle-fatigue
                                                      RIN 2120–AA64                                           25513; or in person at the Docket                     analysis for stage 1 HPT disks and stage
                                                                                                              Management Facility between 9 a.m.                    1 LPT disks and reducing their cyclic
                                                      Airworthiness Directives; Rolls-Royce                   and 5 p.m., Monday through Friday,                    life limits. We issued AD 2006–18–14 to
                                                      Deutschland Ltd & Co KG Turbofan                        except Federal holidays. The AD docket                prevent cracks leading to turbine disk
                                                      Engines                                                 contains this proposed AD, the                        failure, which could result in an
                                                                                                              mandatory continuing airworthiness                    uncontained engine failure and damage
                                                      AGENCY: Federal Aviation
                                                                                                              information, regulatory evaluation, any               to the airplane.
                                                      Administration (FAA), DOT.
                                                                                                              comments received, and other
                                                      ACTION: Notice of proposed rulemaking                   information. The address for the Docket               Actions Since AD 2006–18–14 Was
                                                      (NPRM).                                                 Office (phone: 800–647–5527) is in the                Issued
                                                      SUMMARY:    We propose to supersede                     ADDRESSES section. Comments will be
                                                                                                              available in the AD docket shortly after                 Since we issued AD 2006–18–14, RRD
                                                      airworthiness directive (AD) 2006–18–
                                                                                                              receipt.                                              reviewed the cyclic life limit of parts
                                                      14 that applies to all Rolls-Royce
                                                                                                              FOR FURTHER INFORMATION CONTACT:
                                                                                                                                                                    affected by AD 2006–18–14; RRD
                                                      Deutschland Ltd & Co KG (RRD) Tay
                                                                                                              Philip Haberlen, Aerospace Engineer,                  concluded that the stage 1 HPT disk, P/
                                                      650–15 and Tay 651–54 turbofan
                                                                                                              Engine Certification Office, FAA, Engine              N JR32013, requires further cyclic life
                                                      engines. AD 2006–18–14 requires
                                                                                                              & Propeller Directorate, 1200 District                limit reduction. RRD did not further
                                                      calculating and re-establishing the
                                                                                                              Avenue, Burlington, MA 01803; phone:                  reduce the cyclic life limit of stage 1
                                                      cyclic life of stage 1 high-pressure
                                                      turbine (HPT) disks, part number (P/N)                  781–238–7770; fax: 781–238–7199;                      HPT disk, P/N JR33838, or stage 1 LPT
                                                      JR32013 and P/N JR33838, and stage 1                    email: philip.haberlen@faa.gov.                       disk, P/N JR32318A. Accordingly, the
                                                      low-pressure turbine (LPT) disk, P/N                                                                          cyclic life limits of stage 1 HPT disk, P/
                                                                                                              SUPPLEMENTARY INFORMATION:
                                                      JR32318A. This proposed AD would                                                                              N JR33838, and stage 1 LPT disk, P/N
asabaliauskas on DSK3SPTVN1PROD with PROPOSALS




                                                      require re-calculating the cyclic life, and             Comments Invited                                      JR32318A, as imposed by AD 2006–18–
                                                      would impose a reduced cyclic life, of                    We invite you to send any written                   14, remain unchanged in this proposed
                                                      stage 1 HPT disk, P/N JR32013. We are                   relevant data, views, or arguments about              AD.
                                                      proposing this AD to prevent failure of                 this proposed AD. Send your comments                     Since AD 2006–18–14 was issued, the
                                                      stage 1 HPT disks, P/N JR32013 and P/                   to an address listed under the                        European Aviation Safety Agency
                                                      N JR33838, and stage 1 LPT disk, P/N                    ADDRESSES section. Include ‘‘Docket No.               (EASA) issued AD 2015–0056, dated
                                                      JR32318A, which could result in an                      FAA–2006–25513; Directorate Identifier                March 31, 2015 to reduce the cyclic life
                                                      uncontained engine failure and damage                   99–NE–61–AD’’ at the beginning of your                limits of the stage 1 HPT disk, P/N
                                                      to the airplane.                                        comments. We specifically invite                      JR32013.


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Document Created: 2016-03-11 01:50:52
Document Modified: 2016-03-11 01:50:52
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 May 10, 2016.
ContactMatt Wilbanks, Aviation Safety Engineer, Safety Management Group, Rotorcraft Directorate, FAA, 10101 Hillwood Parkway, Fort Worth, Texas 76177; telephone (817) 222-5110; email [email protected]
FR Citation81 FR 12838 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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