[Federal Register Volume 81, Number 40 (Tuesday, March 1, 2016)]
[Rules and Regulations]
[Pages 10460-10465]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-04033]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2014-0755; Directorate Identifier 2014-NM-080-AD;
Amendment 39-18414; AD 2016-04-20]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: We are adopting a new airworthiness directive (AD) for all The
Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER
series airplanes, Model 757 airplanes, Model 767 airplanes, and Model
777 airplanes. This AD results from fuel system reviews conducted by
the manufacturer. This AD requires an inspection to determine if
certain motor-operated valve (MOV) actuators for the fuel valves are
installed, and replacement of any affected actuators. Previous ADs
addressed this Special Federal Aviation Regulation No. 88 (SFAR 88)
issue for the majority of the airplanes delivered with these actuators.
Since those ADs did not cover all of the airplanes, and for some
airplanes delivered with improved actuators, there was no restriction
on installation of replacement actuators with the unsafe condition,
this additional rulemaking action is required. As with the related ADs,
we are issuing this AD to prevent electrical energy from lightning, hot
shorts, or fault current from entering the fuel tank through the fuel
valve actuator shaft, which could result in fuel tank explosions and
consequent loss of the airplane.
DATES: This AD is effective April 5, 2016.
ADDRESSES: For service information identified in this final rule,
contact Boeing Commercial Airplanes, Attention: Data & Services
Management, P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone
206-544-5000, extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.com. You may view this referenced service information
at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW.,
Renton, WA. For information on the availability of this material at the
FAA, call 425-227-1221.
Examining the AD Docket
You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2014-
0755; 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 address for the Docket Office (phone: 800-647-
5527) is Docket Management Facility, U.S. Department of Transportation,
Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200
New Jersey Avenue SE., Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Rebel Nichols, Aerospace Engineer,
Propulsion Branch, ANM-140S, FAA, Seattle Aircraft Certification
Office, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-
6509; fax: 425-917-6590; email: [email protected].
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would apply to all The Boeing Company
Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes,
Model 757 airplanes, Model 767 airplanes, and Model 777 airplanes. The
NPRM published in the Federal Register on November 7, 2014 (79 FR
66343) (``the NPRM''). The NPRM results from fuel system reviews
conducted by the manufacturer. The NPRM proposed to require an
inspection to determine if certain actuators for the fuel valves are
installed, and replacement of any affected actuators. Previous ADs
addressed this SFAR 88 (66 FR 23086, May 7, 2001) issue for the
majority of the airplanes delivered with these actuators. Since those
ADs did not cover all of the airplanes, and for some airplanes
delivered with improved actuators, there was no restriction on
installation of replacement actuators with the unsafe condition, this
additional rulemaking action is required. As with the related ADs, we
are issuing this AD to prevent electrical energy from lightning, hot
shorts, or fault current from entering the fuel tank through the fuel
valve actuator shaft, which could result in fuel tank explosions and
consequent loss of the airplane.
Comments
We gave the public the opportunity to participate in developing
this AD. The following presents the comments received on the NPRM and
the FAA's response to each comment.
Requests To Revise the Proposed Applicability
Boeing, All Nippon Airways (ANA), American Airlines (AAL),
Southwest Airlines (SWA), and United Airlines (UAL), requested that we
delete Model 737-600, -700, 700C, -800, -900, and -900ER series
airplanes from the applicability of the NPRM. The commenters stated
that AD 2008-06-03, Amendment 39-15415 (73 FR 13081, March 12, 2008)
(``AD 2008-06-03''), mandated replacement of all fuel system MOV
actuators having Part Number (P/N) MA20A1001-1 (S343T003-39) on Model
737 airplanes, and that the compliance time for AD 2008-06-03 ended
April 16, 2013. Boeing stated that first production delivery of the
SFAR88 compliant actuator having P/N MA20A2027 (S343T003-56) occurred
on line number 1877, and that the illustrated parts catalog (IPC) for
that airplane and subsequent airplanes prohibited installation of MOV
actuators having P/N MA20A1001-1 (S343T003-39).
We partially agree with the commenters' requests. We agree there is
little risk that MOV actuators having P/N MA20A1001-1 (S343T003-39) are
currently installed on Model 737-600, -700, 700C, -800, -900, and -
900ER series airplanes for the reasons provided by the commenter.
However, we want to ensure that MOV actuators having P/N MA20A1001-1
(S343T003-39) are not installed on these airplanes in the future.
Therefore, we have removed Model 737 airplanes from the actions
required by paragraph (g) of this AD but not from the applicability of
the AD. We have retained Model 737 airplanes in paragraph (i) of this
AD, which states that no person may install an MOV actuator having P/N
MA20A1001-1 (S343T003-39) on any airplane. Paragraph (i) of this AD
ensures that installation of MOV actuators having P/
[[Page 10461]]
N MA20A1001-1 (S343T003-39) is prohibited.
Boeing, AAL, and UAL requested that we delete Model 757-200, -
200PF, -200CB, and -300 series airplanes from the applicability of the
NPRM. The commenters stated that the previously referenced AD 2008-06-
03 is applicable to Model 757 airplanes. Boeing stated that the last
Model 757 airplane was delivered prior to development of the new SFAR
88 compliant MOV actuator and that AD 2008-06-03 will ensure that MOV
actuators having P/N MA20A1001-1 (S343T003-39) are not installed on any
Model 757 airplanes.
We partially agree with the commenters' requests. We agree that the
requirements of AD 2008-06-03 are intended to prevent Model 757-200, -
200PF, -200CB, and -300 series airplanes from having an MOV actuator
having P/N MA20A1001-1 installed and have determined there is little
risk that MOV actuators having P/N MA20A1001-1 (S343T003-39) are
currently installed on Model 757-200, -200PF, -200CB, and -300 series
airplanes. However, we want to ensure that MOV actuators having P/N
MA20A1001-1 (S343T003-39) are not installed on these airplanes in the
future. Therefore, we have removed the Model 757 airplanes from the
actions required by paragraph (g) of this AD. We have retained Model
757 airplanes in paragraph (i) of this AD, which states that no person
may install an MOV actuator having P/N MA20A1001-1 (S343T003-39) on any
airplane.
Boeing, AAL, ANA, and UAL requested that we delete Model 767
airplanes from the applicability of the NPRM. The commenters stated
that AD 2009-22-13, Amendment 39-16066 (74 FR 55755, October 29, 2009)
(``AD 2009-22-13''), mandated replacement of all fuel system MOV
actuators having P/N MA20A1001-1 (S343T003-39) on Model 767 airplanes,
and that the compliance time for AD 2009-22-13 ended December 3, 2014.
Boeing stated that first production delivery of the SFAR 88 compliant
MOV actuator having P/N MA30A1001-1 (S343T003-56) occurred on line
number 941; and that the IPC for that airplane and subsequent airplanes
prohibited installation of the MOV actuator having P/N MA20A1001-1
(S343T003-39).
We partially agree with the commenters' requests. We agree with
deleting most Boeing Model 767-200, -300, -300F, and -400ER series
airplanes from the actions required by paragraph (g) of this AD but not
from the applicability of the AD. The requirements of AD 2009-22-13 are
intended to prevent all but Model 767-300 series airplanes having line
numbers 939 and 940 from having an MOV actuator having P/N MA20A1001-1
(S343T003-39) installed. We have determined that except for Model 767-
300 series airplanes having line numbers 939 and 940, there is little
risk that MOV actuators having P/N MA20A1001-1 (S343T003-39) are
currently installed on Model 767-200, -300, -300F, and -400ER series
airplanes. Therefore, we have revised paragraph (g) of this AD to
specify that the actions apply to Model 767-300 series airplanes with
line numbers 939 and 940. To ensure that MOV actuators having P/N
MA20A1001-1 (S343T003-39) are not installed in the future on Model 767
airplanes, we have retained Model 767 airplanes in paragraph (i) of
this AD, which states that no person may install an MOV actuator having
P/N MA20A1001-1 (S343T003-39) on any airplane.
Boeing, AAL, ANA, Delta Airlines (DAL), and UAL requested that we
revise the Model 777 applicability. The commenters stated that AD 2013-
05-03, Amendment 39-17375 (78 FR 17290, March 21, 2013) (``AD 2013-05-
03''), mandated replacement of all fuel system MOV actuators having P/N
MA20A1001-1 on Model 777 airplanes and prohibits installation of an MOV
actuator having P/N MA20A1001-1 on any Model 777 airplane. Boeing
stated that the NPRM would be redundant for airplanes covered by AD
2013-05-03, and that all other airplanes that are not covered by AD
2013-05-03 have no production authority to install an MOV actuator
having P/N MA20A1001-1.
We partially agree with the commenters' requests. We agree with
deleting Model 777 airplanes with Aircraft Information Management
System (AIMS) version 2 covered by AD 2013-05-03 from the actions
required by paragraph (g) of this AD but not from the applicability of
this AD. The requirements of AD 2013-05-03 will prevent an MOV actuator
having P/N MA20A1001-1 from being installed on these airplanes. We
disagree with deleting Model 777 airplanes with AIMS version 1 from the
applicability of this AD because AD 2013-05-03 allows airplanes with
AIMS version 1 to retain MOV actuators having P/N MA20A1001-1 at
certain locations. We have revised paragraph (g) of this AD to exclude
Model 777 airplanes having line numbers 454 through 551 inclusive,
which have AIMS version 2 installed.
Boeing, AAL, and DAL requested that we exclude certain Model 777
airplanes from the actions required by paragraph (g) of the proposed
AD. The commenters stated that it appears that the intent of the NPRM
might be to address the IPC that allows an MOV actuator having P/N
MA20A1001-1 (S343T003-39) to be installed on a limited number of Model
777 airplanes. Boeing stated that it believes that, as the IPC has been
corrected to not allow installation of an MOV actuator having P/N
MA20A1001-1 (S343T003-39), and that Boeing Service Bulletin 777-
28A0034, Revision 3, dated September 25, 2015, provides inspections of
the MOV actuator for the 11 airplanes affected by the IPC, the actions
taken are sufficient to ensure removal of the MOV actuator having P/N
MA20A1001-1 (S343T003-39) from the affected airplanes.
We partially agree with the commenter's request. We have revised
paragraph (g) of this AD to exclude Model 777 airplane having line
number 563 and subsequent from the actions required by paragraph (g) of
this AD. As stated previously, we have already revised paragraph (g) to
exclude Model 777 airplanes having line numbers 454 through 551
inclusive. However, the 11 Model 777 airplanes affected by the IPC
error are retained in paragraph (g) of this AD in order to require an
inspection and replacement of MOV actuators having P/N MA20A1001-1
(S343T003-39). To ensure that MOV actuators having P/N MA20A1001-1
(S343T003-39) are not installed on Model 777 airplanes in the future,
all Model 777 airplanes are included in paragraph (i) of this AD, which
states that no person may install an MOV actuator having P/N MA20A1001-
1 (S343T003-39) on any airplane. Paragraph (i) of this AD ensures that
installation of MOV actuators having P/N MA20A1001-1 (S343T003-39) is
prohibited.
Requests To Clarify Justification for the NPRM (79 FR 66343, November
7, 2014)
Boeing, AAL, and DAL requested that we clarify the reasons for
issuing the NPRM as it appears to be requiring actions mandated in
previously issued ADs.
We agree to clarify the reasons for this rulemaking action. We have
revised the SUMMARY and Discussion section of this final rule to state
that previous ADs address this SFAR 88 issue for the majority of the
airplanes delivered with these actuators. Since those ADs did not cover
all of the airplanes, and since some airplanes have no restrictions to
prevent airplanes delivered with improved actuators from receiving
replacement actuators with the unsafe condition, this additional
rulemaking action is required. As with the ADs described previously, we
are issuing this AD to prevent electrical energy
[[Page 10462]]
from lightning, hot shorts, or fault current from entering the fuel
tank through the actuator shaft, which could result in fuel tank
explosions and consequent loss of the airplane.
Request To Revise Unsafe Condition Statement
Boeing requested that we revise the unsafe condition statement in
the NPRM to better define the unsafe condition. Boeing stated that the
unsafe condition is the possibility for operators to install the non-
SFAR88 compliant [and in this case unsafe] MOV actuator design, due to
a possible IPC error, on in-service airplanes that have been delivered
with the SFAR88 compliant MOV actuator design. Boeing stated that AD
2008-06-03 required replacing all MOV actuators having P/N MA20A1001-1
(S343T003-39) for all Model 737-600, -700, -700C, -800, -900, and -
900ER series airplanes, and Model 757 airplanes, but the actions in the
NPRM implied otherwise.
We partially agree with the commenter. We agree that an IPC error
might have allowed non-SFAR88 compliant MOV actuators to be installed.
However, the IPC error only affected a limited number of Model 777
airplanes and not Model 737-600, -700, -700C, -800, -900, and -900ER
series airplanes, and Model 757 and 767 airplanes. As stated
previously, this AD was revised and, therefore, does not require an
inspection, and replacement if necessary, for Model 737-600, -700, -
700C, -800, -900, and -900ER series airplanes, Model 757 airplanes, and
Model 767 airplanes, except for Model 767-300 series airplanes having
line numbers 939 and 940.
We disagree with changing the unsafe condition statement since that
statement reflects the consequent results of installing the non-
compliant MOV actuator. We have not changed this AD in this regard.
Requests To Revise Compliance Time for the MOV Actuator Replacement
Boeing and UAL requested that we revise the compliance time in
paragraph (h) of the proposed AD for the MOV actuator replacement from
within 60 months after the effective date of this AD to before further
flight. The commenters stated that this revision would then match the
language used in AD 2008-06-03.
As we stated previously, the airplanes identified in AD 2008-06-03
have been removed from paragraph (g) of this AD and therefore those
airplanes are not affected by paragraph (h) of this AD. The compliance
of ``within 60 months after the effective date of this AD'' does
correspond with the compliance times specified in AD 2009-22-13 and AD
2013-05-03 and the associated Boeing service information. In developing
an appropriate compliance time, we considered the safety implications,
parts availability, and normal maintenance schedules for timely
accomplishment of replacement of the MOV actuators. In consideration of
all of these factors, we determined that the compliance time, as
proposed, represents an appropriate interval in which the MOV actuator
having P/N MA20A1001-1 (S343T003-39) can be replaced in a timely manner
within the fleet, while still maintaining an adequate level of safety.
We have confirmed with Boeing that the safety analysis supports the
compliance of ``within 60 months after the effective date of this AD.''
Operators are always permitted to accomplish the requirements of an AD
at a time earlier than the specified compliance time. We have not
changed this AD in this regard.
Request To Remove Parts Installation Prohibition
Boeing and UAL stated that AD 2008-06-03, AD 2009-22-13, and AD
2013-05-03 already prohibit installation of the unsafe MOV actuator.
From this statement, we infer that the commenters would like us to
remove paragraph (i) of the proposed AD, which proposed to prohibit
installation of an MOV actuator having P/N MA20A1001-1 (S343T003-39) on
any airplane as of the effective date of the AD. We do not agree to
remove paragraph (i) of this AD. While in some instances there are
prohibitions against installation of these MOV actuators, there are
certain airplanes on which operators are still allowed to install these
actuators. We have determined that paragraph (i) of this AD is
necessary to ensure that no MOV actuators having P/N MA20A1001-1
(S343T003-39) are installed on any Model 737-600, -700, -700C, -800, -
900, and -900ER series airplane, Model 757 airplane, Model 767
airplane, or Model 777 airplane. We have not changed this AD in this
regard.
Requests To Revise ``Affected AD'' Paragraph
Boeing and ANA requested that we add AD 2008-06-03 to paragraph
(b), ``Affected ADs'' of the proposed AD. ANA also requested that we
add AD 2009-22-13 and AD 2013-05-03 to paragraph (b), ``Affected ADs''
of the proposed AD. Boeing stated that AD 2008-06-03 replaced all MOV
actuators having P/N MA20A1001-1 (S343T003-39), and that the NPRM
implied otherwise.
We agree that the referenced ADs are related, but we disagree with
the request to change paragraph (b) of this AD. The referenced ADs are
similar to this AD but are not directly impacted by this AD. The term
``affected ADs'' refers to ADs that are directly affected by this AD,
for example, ADs that are superseded, revised, or terminated by this
AD. Also, as stated previously, airplanes affected by AD 2008-06-03
have been removed from the inspection required by paragraph (g) of this
AD, and therefore, are not included in the replacement of MOV actuators
having P/N MA20A1001-1 (S343T003-39) required by paragraph (h) of this
AD. We have not changed this AD in this regard.
Requests To Use Alternative Inspections
Boeing and DAL requested that we make accomplishment of the
inspection requirements in paragraphs (g) and (h) of this AD using the
service information identified in earlier ADs, such as AD 2008-06-03,
acceptable for addressing the unsafe condition identified in this AD.
Boeing stated that approving those previous inspection requirements
would prevent repetition of inspections already performed.
As we stated previously, the airplanes identified in AD 2008-06-03
and certain earlier ADs have been removed from paragraph (g) of this
AD; therefore, those airplanes are also not affected by paragraph (h)
of this AD. Thus, there is no need to identify the service information
from earlier ADs. We have not changed this AD in this regard.
Request To Retain Maintenance Records Review
ANA requested that we retain the maintenance records review
provided in paragraph (g) of the proposed AD to determine if an unsafe
MOV actuator is installed.
We acknowledge the commenter's request. Paragraph (g) of this AD
already permits a review of the airplane maintenance records to
determine if the unsafe MOV actuator is installed. We have retained
that action in this AD. Therefore, no additional change to this AD is
necessary in this regard.
Requests for Alternative Method of Compliance (AMOC)
ANA and DAL requested that we specify the previous related ADs as
an AMOC for the actions, since those ADs do the same actions for some
of the airplanes identified in the NPRM.
We partially agree with the commenters' requests. We agree with the
concept of providing credit for
[[Page 10463]]
previous actions because most operators have already taken the actions
required by the previously described related ADs. We disagree with
providing an AMOC for previous actions because airplanes changed
according to the requirements of the previously described related ADs
have been removed from paragraph (g) of this AD. No further change to
this AD has been made in this regard.
Request for Part Clarification
SWA requested that we clarify the name of the actuator. SWA stated
that the NPRM preamble describes replacement of ``spar-mounted'' MOV
actuators, but paragraphs (g), (h), and (i) of the proposed AD does not
state ``spar-mounted.''
We agree to clarify the name of the actuator. Most components have
several ways to refer to them. In order to provide consistency, we have
removed the term ``spar-mounted'' in the preamble of this final rule.
Request To Provide MOV Actuator Locations
DAL requested that we include or give reference to graphics or
figures, which would clearly illustrate the locations of all affected
MOV actuators.
We agree with the commenter's request to specify the locations of
all affected MOV actuators, but we do not agree to reference graphics
or figures. We have added new paragraphs (g)(1) and (g)(2) in this AD
to specify the MOV actuator locations.
Request To Revise Part Location Wording
DAL requested that we revise the last sentence of paragraph (g) of
the proposed AD to reflect the fact that there are multiple positions
for the installed MOV actuators.
We agree with the commenter's request. We have revised the
introductory text of paragraph (g) of this AD to state in part, ``A
review of airplane maintenance records is acceptable in lieu of this
inspection, if the part number of the actuator at each location can be
conclusively determined from that review.''
Request To Add IPC Terminating Action
DAL requested that we revise the NPRM to permit an IPC restriction
as terminating action for the actions required by paragraph (g) of the
propose AD. DAL stated that it believes this IPC restriction would
provide an equivalent level of safety to the maintenance records review
specified in paragraph (g) of the proposed AD.
We do not agree with the commenter's request. The IPC would
indicate that P/N MA20A1001-1 (S343T003-39) is not eligible for
installation, but it would not require actions for any airplanes with a
non-compliant actuator that is currently installed. In addition, the
IPC is not FAA-approved and is not used to control the configuration of
the airplane. Therefore, the inspection required by paragraph (g) of
this AD must be done to identify non-compliant actuators and paragraph
(h) of this AD must be done to replace non-compliant actuators. We have
not changed this AD in this regard.
Request To Provide Part Replacement Procedure Reference
DAL requested that we include a statement in paragraph (h) of the
proposed AD to specify that MOV actuator replacement following the
applicable aircraft maintenance manual (AMM) procedures is an
acceptable procedure. DAL stated that operators will have difficulty
complying with the part replacement requirements due to the lack of
specific details relating to the part replacement method.
We agree with the commenter's request. We have added new Note 1 to
paragraph (h) of this AD, which states that guidance on replacing the
affected MOV actuator can be found in the Boeing 767 Aircraft
Maintenance Manual or the Boeing 777 Aircraft Maintenance Manual, as
applicable.
Request To Provide Part Number References
DAL requested that we include a statement in paragraph (h) of the
proposed AD, or an additional new paragraph, which would identify all
known MOV actuator part numbers that are acceptable replacement parts.
DAL stated that operators will have difficulty complying with the part
replacement requirements due to the lack of specific details relating
to the MOV actuator part numbers.
We do not agree with the commenter's request. The unsafe condition
is present in only one part number actuator. There are several part
numbers that are appropriate for replacement and new ones may become
available. As such, we only intend to prohibit the installation of
parts that are known to have unsafe conditions associated with them.
This approach should make it easier for an operator to comply with the
requirements of this AD without the need for AMOCs to install future
acceptable part numbers and still prevent unsafe parts from being
installed. We have not changed this AD in this regard.
Request To Revise Proposed Cost Estimates
DAL requested that we revise the proposed costs estimates. DAL
stated that inspection of all the MOV positions (described in Boeing
Service Bulletin 777-28A0034), can take between 3.25 and 3.75 work-
hours, excluding access and restoration; and that the on-condition
replacement of a single MOV actuator can be as high as 51 work-hours.
DAL also stated that the cost of a replacement MOV actuator is $6,862.
We agree with the commenter's request to revise the cost estimates
provided in this final rule. We have revised the on-condition part cost
to $6,862. Replacing an actuator can take as little as 30 minutes, or
up to 51 hours if a fuel tank needs to be emptied. Therefore, we have
revised the on-condition labor cost to up to 51 work-hours to reflect
the possible higher cost.
Conclusion
We reviewed the relevant data, considered the comments received,
and determined that air safety and the public interest require adopting
this AD with the changes described previously and minor editorial
changes. We have determined that these minor changes:
Are consistent with the intent that was proposed in the
NPRM for correcting the unsafe condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM.
We also determined that these changes will not increase the
economic burden on any operator or increase the scope of this AD.
Costs of Compliance
We estimate that this AD affects 2,140 airplanes of U.S. registry.
We estimate the following costs to comply with this AD:
[[Page 10464]]
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per
Action Labor cost Parts cost product Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
Inspection to determine part 1 work-hour x $85 $0 $85 Up to $40,970.
number (Up to 482 airplanes). per hour = $85.
----------------------------------------------------------------------------------------------------------------
We estimate the following costs to do any necessary replacements
that would be required based on the results of the inspection. We have
no way of determining the number of aircraft that might need these
replacements:
On-Condition Costs
----------------------------------------------------------------------------------------------------------------
Action Labor cost Parts cost Cost per product
----------------------------------------------------------------------------------------------------------------
Actuator replacement............... Up to 51 work-hours x $85 $6,862 per actuator... Up to $11,197 per
per hour = up to $4,335 actuator.
per actuator.
----------------------------------------------------------------------------------------------------------------
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
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 DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979),
(3) Will not affect intrastate aviation in Alaska, and
(4) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive (AD):
2016-04-20 The Boeing Company: Amendment 39-18414; Docket No. FAA-
2014-0755; Directorate Identifier 2014-NM-080-AD.
(a) Effective Date
This AD is effective April 5, 2016.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all The Boeing Company airplanes identified
in paragraphs (c)(1) through (c)(4) of this AD, certificated in any
category.
(1) Model 737-600, -700, -700C, -800, -900, and -900ER series
airplanes.
(2) Model 757-200, -200PF, -200CB, and -300 series airplanes.
(3) Model 767-200, -300, -300F, and -400ER series airplanes.
(4) Model 777-200, -200LR, -300, -300ER, and -777F series
airplanes.
(d) Subject
Air Transport Association (ATA) of America Code 28, Fuel.
(e) Unsafe Condition
This AD results from fuel system reviews conducted by the
manufacturer. We are issuing this AD to prevent electrical energy
from lightning, hot shorts, or fault current from entering the fuel
tank through the fuel valve actuator shaft, which could result in
fuel tank explosions and consequent loss of the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Inspection To Determine Part Number (P/N)
For Model 767-300 series airplanes having line numbers 939 and
940; and Model 777-200, -200LR, -300, -300ER, and -777F series
airplanes, except airplanes having line numbers 454 through 551
inclusive, and 563 and subsequent: Within 60 months after the
effective date of this AD, do an inspection to determine whether any
motor-operated shutoff valve (MOV) actuators having P/N MA20A1001-1
(S343T003-39) for the fuel tanks or fuel feed system are installed
on the airplane. A review of airplane maintenance records is
acceptable in lieu of this inspection if the part number of the
actuator at each location can be conclusively determined from that
review.
(1) For Model 767 airplanes, there are several affected actuator
locations: the fuel shutoff valves, the fuel crossfeed valves, the
defueling valves, the jettison nozzle valves, the jettison transfer
valves, the auxiliary power unit (APU) fuel shutoff valve and the
APU fuel isolation valve.
(2) For Model 777 airplanes, there are several affected actuator
locations: the fuel shutoff valves, the fuel crossfeed valves, the
defueling valves, the jettison nozzle valves, the jettison isolation
valves, the APU fuel shutoff valve, the APU fuel isolation valve,
the auxiliary tank isolation valve, the auxiliary tank refuel valve,
the auxiliary tank fuel transfer valve, the auxiliary tank vent
valve, and the auxiliary tank Number 2 refuel isolation valve.
(h) Replacement
If, during the inspection required by paragraph (g) of this AD,
any MOV actuator
[[Page 10465]]
having P/N MA20A1001-1 (S343T003-39) for the fuel tanks is
installed: Within 60 months after the effective date of this AD,
replace the affected MOV actuator with a serviceable, FAA-approved
MOV actuator other than one having P/N MA20A1001-1 (S343T003-39).
Note 1 to paragraph (h) of this AD: Guidance on replacing the
affected MOV actuator may be found in the Boeing 767 Aircraft
Maintenance Manual or the Boeing 777 Aircraft Maintenance Manual, as
applicable.
(i) Parts Installation Prohibition
As of the effective date of this AD, no person may install an
MOV actuator having P/N MA20A1001-1 (S343T003-39) on any airplane.
(j) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Seattle Aircraft Certification Office (ACO),
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 manager of the ACO, send it to the
attention of the person identified in paragraph (k) of this AD.
Information may be emailed to: [email protected].
(2) 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.
(k) Related Information
(1) For more information about this AD, contact Rebel Nichols,
Aerospace Engineer, Propulsion Branch, ANM-140S, FAA, Seattle ACO,
1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6509;
fax: 425-917-6590; email: [email protected].
(2) For service information identified in this AD, contact
Boeing Commercial Airplanes, Attention: Data & Services Management,
P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 206-544-
5000, extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.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.
(l) Material Incorporated by Reference
None.
Issued in Renton, Washington, on February 16, 2016.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2016-04033 Filed 2-29-16; 8:45 am]
BILLING CODE 4910-13-P