[Federal Register Volume 80, Number 201 (Monday, October 19, 2015)]
[Rules and Regulations]
[Pages 63079-63080]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-26219]
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Rules and Regulations
Federal Register
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Federal Register / Vol. 80, No. 201 / Monday, October 19, 2015 /
Rules and Regulations
[[Page 63079]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2014-0656; Directorate Identifier 2013-NM-224-AD;
Amendment 39-18295; AD 2015-21-03]
RIN 2120-AA64
Airworthiness Directives; Airbus Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule; removal.
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SUMMARY: We are removing Airworthiness Directive (AD) 2010-08-08, which
applied to certain Airbus Model A330-243, -341, -342, and -343
airplanes. AD 2010-08-08 required deactivating the water scavenge
automatic operation and revising the Limitations section of the
airplane flight manual (AFM). We are also removing AD 2011-06-04, which
applied to certain Airbus Model A330-243F airplanes. AD 2011-06-04
required revising the Limitations section of the AFM. We issued ADs
2010-08-08 and 2011-06-04 to prevent fuel flow restriction, caused by
ice, resulting in a possible engine surge or stall condition, and the
engine being unable to provide the commanded thrust. Since we issued AD
2010-08-08 and AD 2011-06-04, we received new data indicating that the
water scavenge system (WSS) operation does not induce any risk of fuel
feed system (including the engine) blockage by ice on the pipework or
pump inlets. We have also determined that the risk of fuel flow
restriction by ice at the fuel oil heat exchanger (FOHE) interface on
airplanes equipped with Rolls-Royce Trent 700 engines is now addressed
by a redesigned FOHE, which incorporates enhanced anti-icing and de-
icing performance.
DATES: This AD becomes effective November 23, 2015.
ADDRESSES: You may examine the AD docket on the Internet at http://www.regulations.gov/#!docketDetail;D=FAA-2014-0656; or in person at the
Docket Management Facility, U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE., Washington, DC.
For 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: [email protected]; Internet http://www.airbus.com. You may view this referenced service information at the
FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA.
For information on the availability of this material at the FAA, call
425-227-1221.
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:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would apply to certain Airbus Model A330-
243, -243F, -341, -342, and -343 airplanes. The NPRM published in the
Federal Register on October 2, 2014 (79 FR 59468). The NPRM proposed to
remove AD 2010-08-08, Amendment 39-16263 (75 FR 19196, April 14, 2010),
and AD 2011-06-04, Amendment 39-16628 (76 FR 13075, March 10, 2011).
The European Aviation Safety Agency (EASA), which is the Technical
Agent for the Member States of the European Union, has issued EASA AD
2010-0132-CN, dated October 14, 2013 (referred to after this as the
Mandatory Continuing Airworthiness Information, or ``the MCAI''), to
cancel EASA AD 2010-0132R1, dated June 10, 2013, which superseded EASA
AD 2010-0132, dated June 28, 2010. The requirements of FAA AD 2010-08-
08, Amendment 39-16263 (75 FR 19196, April 14, 2010), and AD 2011-06-
04, Amendment 39-16628 (76 FR 13075, March 10, 2011), correspond to
EASA AD 2010-0132. The MCAI states:
During an in-service event, the flight crew of a Trent 700
powered A330 aeroplane reported a temporary Engine Pressure Ratio
(EPR) shortfall on engine 2 during the takeoff phase of the flight.
The ENG STALL warning was set. The flight crew followed the standard
procedures which included reducing throttle to idle. The engine
recovered and provided the demanded thrust level for the remainder
of the flight.
Data analysis confirmed a temporary fuel flow restriction and
subsequent recovery, and indicated that also engine 1 experienced a
temporary fuel flow restriction shortly after the initial event on
engine 2, again followed by a full recovery. The engine 1 EPR
shortfall was insufficient to trigger any associated warning and was
only noted through analysis of the flight data. No flight crew
action was necessary to recover normal performance on this engine.
The remainder of the flight was uneventful.
Based on industry-wide experience, the investigation of the
event focused on the possibility for ice to temporarily restrict the
fuel flow. While no direct fuel system fault was identified, the
operation of the water scavenge system (WSS) at Rib 3 was considered
to have been a contributory factor.
Prompted by these findings, EASA issued [EASA] Emergency AD
2010-0042-E [http://ad.easa.europa.eu/ad/2010-0042-E] [which
corresponds to FAA AD 2010-08-08, Amendment 39-16263 (75 FR 19196,
April 14, 2010] to require deactivation of the automatic Standby
Fuel Pump Scavenge System and to prohibit dispatch of an aeroplane
with one main fuel pump inoperative.
Subsequently, EASA issued [EASA] AD 2010-0132 which superseded
EASA AD 2010-0042-E, retaining its requirements, to expand the
applicability to the newly certified model A330-243F [which
corresponds to FAA AD 2011-06-04, Amendment 39-16628 (76 FR 13075,
March 10, 2011, for the A330-243F requirements]. EASA AD 2010-0132
was later revised to remove the dispatch restriction with one main
fuel pump inoperative.
Since EASA AD 2010-0132R1 was issued, extensive fuel system
icing risk investigations testing was conducted by Airbus and Rolls-
Royce, the results of which confirmed that the Rib 3 WSS operation
does not induce any risk of fuel feed system (including the engine)
blockage by ice accreted on the pipework and/or pump inlets. In
addition, it was demonstrated that the risk of fuel flow restriction
by ice at the Fuel Oil Heat Exchanger (FOHE) interface on aeroplanes
equipped with Trent 700 engines is now adequately addressed by
introduction of a re-designed FOHE, more tolerant to the release of
ice (modification 200218). The
[[Page 63080]]
modified FOHE (incorporating enhanced anti-icing and de-icing
performance) is required to be installed on all Trent 700 engines
through EASA AD 2009-0257 [http://ad.easa.europa.eu/ad/2009-0257]
[which corresponds to FAA AD 2010-07-01, Amendment 39-16244 (75 FR
15326, March 29, 2010)].
Previously, the operation of the WSS at Rib 3 was no longer
considered as a main contributory factor on ice build-up and
subsequent release of ice into the fuel system. Based on the latest
information, the deactivation of the automatic Standby Fuel Pump
Scavenge System is no longer required.
For the reasons described above, this Notice cancels EASA AD
2010-0132R1.
You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov/#!documentDetail;D=FAA-2014-0656-0004.
Comments
We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM (79 FR 59468, October 2,
2014), or on the determination of the cost to the public.
Conclusion
We reviewed the available data and determined that air safety and
the public interest require adopting this AD as proposed except for
minor editorial changes. We have determined that these minor changes:
Are consistent with the intent that was proposed in the
NPRM (79 FR 59468, October 2, 2014) for correcting the unsafe
condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM (79 FR 59468, October 2, 2014).
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 AD will not have federalism implications
under Executive Order 13132. This AD will not have a substantial direct
effect on the States, on the relationship between the national
government and the States, or on the distribution of power and
responsibilities among the various levels of government.
For the reasons discussed above, I certify that this AD:
1. Is not a ``significant regulatory action'' under Executive Order
12866;
2. Is not a ``significant rule'' under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979);
3. Will not affect intrastate aviation in Alaska; and
4. Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
Examining the AD Docket
You may examine the AD docket on the Internet at http://www.regulations.gov/#!docketDetail;D=FAA-2014-0656; or in person at the
Docket Management Facility between 9 a.m. and 5 p.m., Monday through
Friday, except Federal holidays. The AD docket contains this AD, the
regulatory evaluation, any comments received, and other information.
The street address for the Docket Operations office (telephone: 800-
647-5527) is in the ADDRESSES section.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by:
0
(a) Removing Airworthiness Directive (AD) 2010-08-08, Amendment 39-
16263 (75 FR 19196, April 14, 2010); and AD 2011-06-04, Amendment 39-
16628 (76 FR 13075, March 10, 2011), and
0
(b) Adding the following new AD:
2015-21-03 Airbus: Amendment 39-18295. Docket No. FAA-2014-0656;
Directorate Identifier 2013-NM-224-AD.
(a) Effective Date
This AD becomes effective November 23, 2015.
(b) Affected ADs
This AD removes AD 2010-08-08, Amendment 39-16263 (75 FR 19196,
April 14, 2010); and AD 2011-06-04, Amendment 39-16628 (76 FR 13075,
March 10, 2011).
(c) Applicability
This AD applies to the airplanes specified in paragraphs (c)(1)
and (c)(2) of this AD.
(1) Airbus Model A330-243, -341, -342, and -343 airplanes,
certificated in any category, all manufacturer serial numbers
equipped with Rolls-Royce Trent 700 engines, on which Airbus
Modification 56966MP16199 has been embodied in production or Airbus
Service Bulletin A330-28-3105 has been embodied in service.
(2) Airbus Model A330-243F airplanes, certificated in any
category, all manufacturer serial numbers on which Airbus
Modification 56966H16199 has been embodied in production or Airbus
Service Bulletin A330-28-3105 has been embodied in service.
Issued in Renton, Washington, on October 6, 2015.
Jeffrey E. Duven,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2015-26219 Filed 10-16-15; 8:45 am]
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