Document ID: FAA-2015-0076-0001
Agency: faa
Document Type: Proposed Rule
Title: Airworthiness Directives: Airbus Airplanes
Posted Date: 2015-01-23T05:00Z

[Federal Register Volume 80, Number 15 (Friday, January 23, 2015)]
[Proposed Rules]
[Pages 3513-3516]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2015-00961]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-0076; Directorate Identifier 2013-NM-246-AD]
RIN 2120-AA64

Airworthiness Directives; Airbus Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: We propose to adopt a new airworthiness directive (AD) for all 
Airbus Model A330-200, A330-200 Freighter, and A330-300 series 
airplanes; and Airbus Model A340-200, A340-300, A340-500, and A340-600 
series airplanes. This proposed AD was prompted by a report that, 
during a production flight test, the ram air turbine (RAT) did not 
pressurize the green hydraulic system. For certain airplanes, this 
proposed AD would require identification of the part number, serial 
number, and standard of the RAT pump, RAT module, RAT actuator, and RAT 
lower gearbox assembly; replacement of the balance weight screw, 
modification of the actuator coil spring, modification of the actuator, 
an inspection of the anti-stall valve for correct installation in the 
RAT pump housing; and corrective actions if necessary. For certain 
other airplanes, this proposed AD would require re-identification or 
replacement of the RAT module. We are proposing this AD to prevent loss 
of the impeller function and RAT pump pressurization capability, which, 
if preceded by a total engine flame-out, could result in the loss of 
control of the airplane.

DATES: We must receive comments on this proposed AD by March 9, 2015.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: (202) 493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday 
through Friday, except Federal holidays.
    For Airbus service information identified in this proposed AD, 
contact Airbus SAS, Airworthiness Office--EAL, 1 Rond Point Maurice 
Bellonte, 31707 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax 
+33 5 61 93 45 80; email airworthiness.A330A-340@airbus.com; Internet 
http://www.airbus.com. For Hamilton Sundstrand service information 
identified in this proposed AD, contact Hamilton Sundstrand, Technical 
Publications, Mail Stop 302-9, 4747 Harrison Avenue, P.O. Box 7002, 
Rockford, IL 61125-7002; telephone 860-654-3575; fax 860-998-4564; 
email tech.solutions@hs.utc.com; Internet http://www.hamiltonsundstrand.com. You may view the referenced service 
information at the FAA, Transport Airplane Directorate, 1601 Lind 
Avenue SW., Renton, WA. For information on the availability of this 
material at the FAA, call 425 227-1221.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015-
0076; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this proposed AD, the regulatory evaluation, any comments 
received, and other information. The street address for the Docket 
Operations office (telephone (800) 647-5527) is in the ADDRESSES 
section. Comments will be available in the AD docket shortly after 
receipt.

FOR FURTHER INFORMATION CONTACT: Vladimir Ulyanov, Aerospace Engineer, 
International Branch, ANM 116, Transport Airplane Directorate, FAA, 
1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1138; 
fax 425-227-1149.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2015-0076; 
Directorate Identifier 2013-NM-246-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD based on those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Union, has issued EASA 
Airworthiness Directive 2013-0274, dated November 15, 2013 (referred to 
after this as the Mandatory Continuing Airworthiness Information, or 
``the MCAI''), to correct an unsafe condition for all Airbus Model 
A330-200, A330-200 Freighter, and A330-300 series airplanes; and Airbus 
Model A340-200, A340-300, A340-500, and A340-600 series airplanes. The 
MCAI states:

    During a production flight test of an A330-300 aeroplane, the 
Ram Air Turbine (RAT) did not pressurize the green hydraulic system. 
Investigation revealed that the impeller drive (hex) shaft had a 
reduced length of engagement with the pump drive shaft. This caused 
the impeller drive shaft to disengage from the pump and disconnect 
the impeller. It was determined that the disconnection was the 
result of internal hex dimensions on the pump impeller shaft, which 
had been changed in a manufacturing drawing. From the investigation 
analysis, it was possible to identify a list of affected parts.

[[Page 3514]]

    This condition, if not detected and corrected, could lead to the 
loss of impeller function and RAT pump pressurization capability, 
possibly resulting, in case of total engine flame out, to the loss 
of control of the aeroplane.
    To address this unsafe condition, a new design RAT pump shaft 
has been developed with a decreased hexagonal shaft housing depth, 
which increases the hexagonal drive shaft engagement in the impeller 
shaft to carry the impeller torque. Airbus issued Service Bulletin 
(SB) A330-29-3122, SB A340-29-4093 and SB A340-29-5021 to provide 
instructions for in-service replacement of the affected RAT 
hydraulic pumps, or re-identification of the RAT pump and complete 
RAT module, as applicable.
    For the reasons described above, this [EASA] AD requires 
identification and replacement [modification] or re-identification 
of all affected RAT hydraulic pumps on A330 and A340-200/300 
aeroplanes, and replacement [modification] of all affected RAT 
modules on A340-500/-600 aeroplanes.

For affected pumps, the required actions also include concurrent 
actions, as applicable, including replacement of the balance weight 
screw, modification of the actuator coil spring, modification of the 
actuator, an inspection of the anti-stall valve for correct 
installation in the RAT pump housing and re-installation if necessary. 
For affected pumps, corrective actions include replacement of the RAT 
hydraulic pump, and re-identification of the part number of the RAT 
module. 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-2015-0076.

Related ADs

    EASA and the FAA have issued additional ADs related to the RAT. FAA 
AD 2012-21-19, Amendment 39-17235 (77 FR 65812, October 31, 2012), 
which corresponds to EASA AD 2011-0197, dated October 10, 2011, 
requires an inspection of the RAT anti-stall valve in the pump housing 
for correct setting, re-identification of the RAT pump, performing a 
functional ground test of the RAT, and replacement of the RAT pump or 
the RAT assembly with a serviceable part if necessary. FAA AD 2012-21-
19 is applicable to all Airbus Model A330-200 freighter series 
airplanes; Model A330-200 and -300 series airplanes; and Model A340-200 
and -300 series airplanes.
    The FAA also issued AD 2012-21-20, Amendment 39-17236 (77 FR 65799, 
October 31, 2012), which corresponds to EASA AD 2011-0204, dated 
October 14, 2011. FAA AD 2012-21-20 requires identification of the 
supplier, part number, and serial number of the RAT actuator, and re-
identification of the RAT actuator and RAT, or replacement of the RAT 
actuator with a serviceable unit and re-identification of the RAT, if 
necessary. FAA AD 2012-21-20 is applicable to certain Airbus Model 
A330-200 freighter series airplanes, Model A330-200 and -300 series 
airplanes, and Model A340-200, -300, -500, and -600 series airplanes.

Related Service Information

    Airbus has issued the following service information, which 
describes procedures for modification of the RAT pump hex shaft.
     Airbus Service Bulletin A330-29-3122, dated October 25, 
2012 (for Model A330-200, -200 Freighter, and -300 series airplanes).
     Airbus Service Bulletin A340-29-4093, dated October 25, 
2012 (for Model A340-200 and -300 series airplanes).
     Airbus Service Bulletin A340-29-5021, dated October 2, 
2012 (for Model A340-500 and -600 series airplanes.
    Hamilton Sundstrand has issued Service Bulletin ERPS06M-29-19, 
dated August 6, 2012, which describes procedures for checking and 
replacing the RAT hydraulic pump.
    The actions described in this service information are intended to 
correct the unsafe condition identified in the MCAI.

FAA's Determination and Requirements of This Proposed AD

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

Clarification of Service Information

    Airbus Service Bulletin A330-29-3122, dated October 25, 2012 (for 
Model A330-200, -200 Freighter, and -300 series airplanes), contains a 
typographical error in the vendor service bulletin reference. The 
Airbus service information in some instances references Hamilton 
Sundstrand Service Bulletin ``EPRS06M-29-13,'' but the correct 
reference is ERPS06M-29-19. Airbus is aware of the error and plans to 
correct it when Service Bulletin A330-29-3122 is revised.

Costs of Compliance

    We estimate that this proposed AD affects 66 airplanes of U.S. 
registry.
    We also estimate that it would take about 14 work-hours per product 
to comply with the basic requirements of this proposed AD. The average 
labor rate is $85 per work-hour. Based on these figures, we estimate 
the cost of this proposed AD on U.S. operators to be $78,540, or $1,190 
per product.
    In addition, we estimate that any necessary follow-on actions would 
take up to 18 work-hours and require parts costing up to $427,301, for 
a cost of $428,831 per product. We have no way of determining the 
number of aircraft that might need this action.

Authority for This Rulemaking

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

Regulatory Findings

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

[[Page 3515]]

List of Subjects in 14 CFR Part 39

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

The Proposed Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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

Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

Airbus: Docket No. FAA-2015-0076; Directorate Identifier 2013-NM-
246-AD.

(a) Comments Due Date

    We must receive comments by March 9, 2015.

(b) Affected ADs

    This AD affects AD 2012-21-19, Amendment 39-17235 (77 FR 65812, 
October 31, 2012); and AD 2012-21-20, Amendment 39-17236 (77 FR 
65799, October 31, 2012).

(c) Applicability

    This AD applies to all airplanes identified in paragraphs (c)(1) 
and (c)(2) of this AD, certificated in any category, all 
manufacturer serial numbers.
    (1) Airbus Model A330-201, -202, -203, -223, -223F, -243, -243F, 
-301, -302, -303, -321, -322, -323, -341, -342, and -343 airplanes.
    (2) Airbus Model A340-211, -212, -213, -311, -312, -313, -541, 
and -642 airplanes.

(d) Subject

    Air Transport Association (ATA) of America Code 29, Hydraulic 
Power.

(e) Reason

    This AD was prompted by a report that, during a production 
flight test, the ram air turbine (RAT) did not pressurize the green 
hydraulic system. We are issuing this AD to prevent loss of the 
impeller function and RAT pump pressurization capability, which, if 
preceded by a total engine flame-out, could result in the loss of 
control of the airplane.

(f) Compliance

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

(g) Identification of RAT Components

    For Airbus Model A330-201, -202, -203, -223, -223F, -243, -243F, 
-301, -302, -303, -321, -322, -323, -341, -342, and -343 airplanes; 
and Model A340-211, -212, -213, -311, -312, and -313 airplanes: 
Except as provided by paragraph (i) of this AD, within 36 months 
after the effective date of this AD, identify the part number, 
serial number, and standard (through the mod-dots) of the RAT pump, 
RAT module, RAT actuator, and RAT lower gearbox assembly, in 
accordance with the Accomplishment Instructions of the applicable 
Airbus service information specified in paragraphs (g)(1) and (g)(2) 
of this AD. A review of airplane maintenance records is acceptable 
in lieu of this identification if the part number, serial number, 
and standard can be conclusively determined from that review.
    (1) For Airbus Model A330-201, -202, -203, -223, -223F, -243, -
243F, -301, -302, -303, -321, -322, -323, -341, -342, and -343 
airplanes: Airbus Service Bulletin A330-29-3122, dated October 25, 
2012.
    (2) For Airbus Model A340-211, -212, -213, -311, -312, and -313 
airplanes: Airbus Service Bulletin A340-29-4093, dated October 25, 
2012.

(h) Corrective and Concurrent Actions

    If the serial number of the RAT hydraulic pump is included in 
table 7, ``Suspect Hydraulic Pump Serial Numbers,'' of Hamilton 
Sundstrand Service Bulletin ERPS06M-29-19, dated August 6, 2012: 
Within 36 months after the effective date of this AD, do all 
applicable corrective actions, in accordance with the Accomplishment 
Instructions of the applicable Airbus service information specified 
in paragraphs (g)(1) and (g)(2) of this AD. Prior to or concurrently 
with doing the corrective actions required by this paragraph, do the 
actions specified in paragraphs (h)(1) through (h)(4) of this AD, in 
accordance with the Accomplishment Instructions of Airbus Service 
Bulletin A330-29-3122, dated October 25, 2012 (for Model A330-200, -
200 Freighter, and -300 series airplanes); or Airbus Service 
Bulletin A340-29-4093, dated October 25, 2012 (for Airbus Model 
A340-211, -212, -213, -311, -312, and -313 airplanes).
    (1) Replace the balance weight screw.
    (2) Modify the actuator coil spring.
    (3) Modify the actuator.
    (4) Do a general visual inspection of the anti-stall valve for 
correct installation in the RAT pump housing, and if any incorrect 
installation is found, before further flight, correctly install the 
anti-stall valve.

(i) Exception to Service Information Specifications

    Where Airbus Service Bulletin A330-29-3122, dated October 25, 
2012 (for Model A330-200, -200 Freighter, and -300 series 
airplanes), refers to Hamilton Sundstrand Service Bulletin 
``EPRS06M-29-13'' as an additional source of guidance for doing 
certain actions required by paragraph (h) of this AD, the correct 
reference should be to Hamilton Sundstrand Service Bulletin ERPS06M-
29-19.

(j) Re-identification of Part Numbers

    If the serial number of the RAT hydraulic pump is not included 
in table 7, ``Suspect Hydraulic Pump Serial Numbers,'' of Hamilton 
Sundstrand Service Bulletin ERPS06M-29-19, dated August 6, 2012: 
Within 36 months after the effective date of this AD, re-identify 
the part numbers of the RAT hydraulic pump and RAT module, in 
accordance with the Accomplishment Instructions of the applicable 
Airbus service information specified in paragraphs (g)(1) and (g)(2) 
of this AD.

(k) RAT Module Replacement (Modification)

    For Airbus Model A340-541 and -642 airplanes having RAT module 
P/N 772722D, 772722E, 772722F, or 772722G: Within 36 months after 
the effective date of this AD, replace (modify) the RAT module, in 
accordance with the Accomplishment Instructions of Airbus Service 
Bulletin A340-29-5021, dated October 2, 2012.

(l) Exception to Paragraphs (g), (h), and (j) of This AD

    The actions required by paragraph (g), (h) and (j) of this AD 
are not required for airplanes on which Airbus Modification 202537 
was embodied in production, provided it can be determined that, 
since the airplane's first flight, no RAT hydraulic pump or RAT 
module having a part number identified in paragraph (n) of this AD 
is installed on that airplane.

(m) Terminating Action for Certain Requirements of Other ADs

    (1) For Airbus Model A330-201, -202, -203, -223, -223F, -243, -
243F, -301, -302, -303, -321, -322, -323, -341, -342, and -343 
airplanes; and A340-211, -212, -213, -311, -312, and -313 airplanes: 
Accomplishment of the actions required by paragraphs (g), (h), and 
(j) of this AD constitutes compliance with the requirements of 
paragraphs (g)(1) and (g)(2) of AD 2012-21-19, Amendment 39-17235 
(77 FR 65812, October 31, 2012); and paragraphs (g)(1) and (g)(2) of 
AD 2012-21-20, Amendment 39-17236 (77 FR 65799, October 31, 2012).
    (2) For Airbus Model A340-541 and -642 airplanes: Accomplishment 
of the actions required by paragraph (k) of this AD constitutes 
compliance with the requirements of paragraphs (h)(1) and (h)(2) of 
AD 2012-21-20, Amendment 39-17236 (77 FR 65799, October 31, 2012).

(n) Parts Installation Prohibition

    (1) For Airbus Model A330-201, -202, -203, -223, -223F, -243, -
243F, -301, -302, -303, -321, -322, -323, -341, -342, and -343 
airplanes; and A340-211, -212, -213, -311, -312, and -313 airplanes: 
After modification of the RAT module as required by paragraph (h) of 
this AD, no person may install any complete RAT module having a part 
number (P/N) identified in paragraph (n)(1)(i) of this AD, or any 
RAT hydraulic pump having the part number identified in paragraph 
(n)(1)(ii) of this AD, on any airplane.
    (i) RAT module P/N 766351, 768084, 770379, 770952, 770952A, 
770952B, 1702934, 1702934A, or 1702934B.
    (ii) RAT hydraulic pump P/N 5909522 (Parker P/N 4207902).
    (2) For Airbus Model A340-541 and -642 airplanes: After 
modification of the RAT module as required by paragraph (k) of this 
AD, no person may install any complete RAT module having P/N 
772722D, 772722E, 772722F, or 772722G, on any airplane.

(o) Other FAA AD Provisions

    The following provisions also apply to this AD:

[[Page 3516]]

    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
International Branch, ANM-116, Transport Airplane Directorate, FAA, 
has the authority to approve AMOCs for this AD, if requested using 
the procedures found in 14 CFR 39.19. In accordance with 14 CFR 
39.19, send your request to your principal inspector or local Flight 
Standards District Office, as appropriate. If sending information 
directly to the International Branch, send it to ATTN: Vladimir 
Ulyanov, Aerospace Engineer, International Branch, ANM 116, 
Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, 
WA 98057-3356; telephone 425-227-1138; fax 425-227-1149. Information 
may be emailed to: 9-ANM-116-AMOC-REQUESTS@faa.gov. Before using any 
approved AMOC, notify your appropriate principal inspector, or 
lacking a principal inspector, the manager of the local flight 
standards district office/certificate holding district office. The 
AMOC approval letter must specifically reference this AD.
    (2) 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.

(p) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) EASA Airworthiness Directive 2013-0274, dated November 15, 
2013, 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-2015-0076.
    (2) For Airbus service information identified in this AD, 
contact Airbus SAS, Airworthiness Office--EAL, 1 Rond Point Maurice 
Bellonte, 31707 Blagnac Cedex, France; telephone +33 5 61 93 36 96; 
fax +33 5 61 93 45 80; email airworthiness.A330-A340@airbus.com; 
Internet http://www.airbus.com. For Hamilton Sundstrand service 
information identified in this AD, contact Hamilton Sundstrand, 
Technical Publications, Mail Stop 302-9, 4747 Harrison Avenue, P.O. 
Box 7002, Rockford, IL 61125-7002; telephone 860-654-3575; fax 860-
998-4564; email tech.solutions@hs.utc.com; Internet http://www.hamiltonsundstrand.com. You may view the 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.

    Issued in Renton, Washington, on January 14, 2015.
John P. Piccola, Jr.,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2015-00961 Filed 1-22-15; 8:45 am]
BILLING CODE 4910-13-P