82_FR_57615 82 FR 57383 - Airworthiness Directives; The Boeing Company Airplanes

82 FR 57383 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 82, Issue 232 (December 5, 2017)

Page Range57383-57389
FR Document2017-24811

We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 737-300, -400, -500, -600, -700, -700C, -800, -900, and -900ER series airplanes; Model 757 airplanes; Model 767 airplanes; Model 777 airplanes; and Model 787-8 and 787-9 airplanes. This proposed AD was prompted by reports of fuel crossfeed valves failing to open when activated during flight. This proposed AD would require, for certain airplanes, revising the airplane flight manual (AFM); and for certain other airplanes, revising the minimum equipment list (MEL) to do an operational check of the fuel crossfeed valve prior to each extended range operations (ETOPS) flight if one fuel crossfeed valve (or the fuel balancing system on Model 787 airplanes) is inoperative. We are proposing this AD to address the unsafe condition on these products.

Federal Register, Volume 82 Issue 232 (Tuesday, December 5, 2017)
[Federal Register Volume 82, Number 232 (Tuesday, December 5, 2017)]
[Proposed Rules]
[Pages 57383-57389]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2017-24811]


========================================================================
Proposed Rules
                                                Federal Register
________________________________________________________________________

This section of the FEDERAL REGISTER contains notices to the public of 
the proposed issuance of rules and regulations. The purpose of these 
notices is to give interested persons an opportunity to participate in 
the rule making prior to the adoption of the final rules.

========================================================================


Federal Register / Vol. 82, No. 232 / Tuesday, December 5, 2017 / 
Proposed Rules

[[Page 57383]]



DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-1024; Product Identifier 2017-NM-065-AD]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for all 
The Boeing Company Model 737-300, -400, -500, -600, -700, -700C, -800, 
-900, and -900ER series airplanes; Model 757 airplanes; Model 767 
airplanes; Model 777 airplanes; and Model 787-8 and 787-9 airplanes. 
This proposed AD was prompted by reports of fuel crossfeed valves 
failing to open when activated during flight. This proposed AD would 
require, for certain airplanes, revising the airplane flight manual 
(AFM); and for certain other airplanes, revising the minimum equipment 
list (MEL) to do an operational check of the fuel crossfeed valve prior 
to each extended range operations (ETOPS) flight if one fuel crossfeed 
valve (or the fuel balancing system on Model 787 airplanes) is 
inoperative. We are proposing this AD to address the unsafe condition 
on these products.

DATES: We must receive comments on this proposed AD by January 19, 
2018.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, 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: Deliver to Mail address above 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 No. FAA-2017-
1024; 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 NPRM, the regulatory evaluation, any comments received, 
and other information. The street address for the Docket Office (phone: 
800-647-5527) is in the ADDRESSES section. Comments will be available 
in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Jon Regimbal, Aerospace Engineer, 
Propulsion Section, FAA, Seattle ACO Branch, 1601 Lind Avenue SW., 
Renton, WA 98057-3356; phone: 425-917-6506; fax: 425-917-6590; email: 
[email protected].

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposal. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2017-1024; 
Product Identifier 2017-NM-065-AD'' at the beginning of your comments. 
We specifically invite comments on the overall regulatory, economic, 
environmental, and energy aspects of this NPRM. We will consider all 
comments received by the closing date and may amend this NPRM because 
of 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 NPRM.

Discussion

    We have received reports of fuel crossfeed valves failing to open 
when activated during flight. The fuel crossfeed valve can fail closed 
due to electrical or mechanical faults. Such a failure would remain 
undiscovered until an attempt is made to open the fuel crossfeed valve. 
Depending on the operational use of the airplane, such a failure could 
remain latent for multiple flights. Some of the affected airplanes have 
only one fuel crossfeed valve. Other affected airplanes have two 
redundant fuel crossfeed valves, but are allowed to be dispatched under 
their MEL with one of the two fuel crossfeed valves inoperative and 
locked closed. Model 787 airplanes have a single crossfeed valve and a 
separate fuel balancing system, either of which allows use of all of 
the main tank fuel by either engine. The Model 787 MEL allows airplanes 
to be dispatched with the fuel balancing system inoperative.
    If an engine failure occurs during certain portions of the cruise 
phase of an ETOPS flight and the fuel crossfeed valve cannot be opened, 
the fuel in the main tank associated with the failed engine cannot be 
used by the remaining operative engine, potentially resulting in a 
forced off-airport landing due to exhaustion of the remaining usable 
fuel and consequent loss of all engine thrust.

FAA's Determination

    We are proposing this AD because we evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop in other products of the same type designs.

Proposed AD Requirements

    For airplanes equipped with a single fuel crossfeed valve, this 
proposed AD would require revising the limitation and normal procedures 
sections of the AFM by adding an operational check of the fuel 
crossfeed valve immediately prior to each ETOPS flight. For airplanes 
equipped with dual fuel crossfeed valves, this proposed AD would 
require revising the MEL by adding a requirement to do an operational 
check of the fuel crossfeed valve prior to each ETOPS flight if one 
fuel crossfeed valve (or the fuel balancing system on Model 787 
airplanes) is inoperative.
    This proposed AD would allow removal of the AFM limitation required 
by AD 88-21-03 R1, Amendment 39-6077 (53 FR 46605, November 18, 1988) 
(``88-21-03 R1''), after the applicable AFM limitations in this 
proposed AD are incorporated in the AFM.

[[Page 57384]]

Related AD

    AD 88-21-03 R1 applies to, among other airplanes, certain Model 
737-200, 737-300, 757-200, 767-200, and 767-300 series airplanes. AD 
88-21-03 R1 requires revising the AFM to include an operational check 
of the fuel crossfeed valve during the last hour of cruise flight 
during each ETOPS flight and log book entry of any fuel crossfeed valve 
failure conditions, and repair if necessary.

Costs of Compliance

    We estimate that this proposed AD affects 3,252 airplanes of U.S. 
registry. We estimate the following costs to comply with this proposed 
AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
AFM Revision (2,127 airplanes)........  1 work-hour x $85 per                 $0             $85        $180,795
                                         hour = $85.
MEL Revision (1,125 airplanes)........  1 work-hour x $85 per                  0              85          95,625
                                         hour = $85.
----------------------------------------------------------------------------------------------------------------

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.
    This AD is issued in accordance with authority delegated by the 
Executive Director, Aircraft Certification Service, as authorized by 
FAA Order 8000.51C. In accordance with that order, issuance of ADs is 
normally a function of the Compliance and Airworthiness Division, but 
during this transition period, the Executive Director has delegated the 
authority to issue ADs applicable to transport category airplanes to 
the Director of the System Oversight Division.

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.

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):

The Boeing Company: Docket No. FAA-2017-1024; Product Identifier 
2017-NM-065-AD.

(a) Comments Due Date

    We must receive comments by January 19, 2018.

(b) Affected ADs

    This AD affects AD 88-21-03 R1, Amendment 39-6077 (53 FR 46605, 
November 18, 1988).

(c) Applicability

    This AD applies to all The Boeing Company airplanes, 
certificated in any category, identified in paragraphs (c)(1) 
through (c)(5) of this AD.
    (1) Model 737-300, -400, -500, -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.
    (5) Model 787-8 and 787-9 airplanes.

(d) Subject

    Air Transport Association (ATA) of America Code 28; Fuel.

(e) Unsafe Condition

    This AD was prompted by reports of fuel crossfeed valves failing 
to open when activated during flight. We are issuing this AD to 
prevent an airplane from being dispatched on an extended range 
operations (ETOPS) flight with a single fuel crossfeed valve that 
cannot be opened. This condition could cause the fuel in the main 
tank associated with a failed engine to be unavailable to the 
remaining operative engine, potentially resulting in a forced 
offairport landing due to exhaustion of the remaining usable fuel 
and consequent loss of all engine thrust.

(f) Compliance

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

(g) AFM Revisions for Model 737 Airplanes Equipped With a Single Fuel 
Crossfeed Valve

    For airplanes identified in paragraph (c)(1) of this AD: Within 
120 days after the effective date of this AD, do the actions in 
specified in paragraphs (g)(1) and (g)(2) of this AD.
    (1) Revise ``Extended Range Operations'' subsection of the 
``Fuel System Limitations'' section of the Section 1 Certificate 
Limitations of the airplane flight manual (AFM) by incorporating the 
information specified in figure 1 to paragraph (g)(1) of this AD. 
This may be done by inserting a copy of this AD into the AFM. When a 
statement identical to that in figure 1 to

[[Page 57385]]

paragraph (g)(1) of this AD has been included in the ``Extended 
Range Operations'' subsection of the ``Fuel System Limitations'' 
section of the Section 1 Certificate Limitations of the general 
revisions of the AFM, the general revisions may be inserted into the 
AFM, and the copy of this AD may be removed from the AFM.
[GRAPHIC] [TIFF OMITTED] TP05DE17.000

    (2) Revise the ``Extended Range Operations'' section of the 
Section 3 Normal Procedures of the AFM by incorporating the 
information specified in figure 2 to paragraph (g)(2) of this AD. 
This may be done by inserting a copy of this AD into the AFM. When a 
statement identical to that in figure 2 to paragraph (g)(2) of this 
AD has been included in the ``Extended Range Operations'' section of 
Section 3 Normal Procedures of the AFM, the general revisions may be 
inserted into the AFM, and the copy of this AD may be removed from 
the AFM.
[GRAPHIC] [TIFF OMITTED] TP05DE17.001

(h) AFM Revisions for Model 757 Airplanes Equipped With a Single Fuel 
Crossfeed Valve

    For airplanes identified in paragraph (c)(2) of this AD having 
line numbers 1 through 616 inclusive and 618 on which the actions 
specified in Boeing Service Bulletin 757-28-0029 (second fuel 
crossfeed valve installation) have not been done: Within 120 days 
after the effective date of this AD, do the actions specified in 
paragraphs (h)(1) and (h)(2) of this AD. For Model 757 airplanes 
identified in this paragraph, if the actions specified in Boeing 
Service Bulletin 757-28-0029 are done after the effective date of 
this AD, then the actions specified in this paragraph are no longer 
required for that airplane and the actions specified in paragraph 
(j) of this AD must be done before further flight after performing 
the actions specified in Boeing Service Bulletin 757-28-0029.
    (1) Revise the ``Extended Range Operations'' section of the 
Section 1 Certificate Limitations of the AFM by incorporating the 
information specified in figure 3 to paragraph (h)(1). This may be 
done by inserting a copy of this AD into the AFM. When a statement 
identical to that in figure 3 to paragraph (h)(1) of this AD has 
been included in the ``Extended Range Operations'' section of the 
Section 1 Certificate Limitations of the general revisions of the 
AFM, the general revisions may be inserted into the AFM, and the 
copy of this AD may be removed from the AFM.

[[Page 57386]]

[GRAPHIC] [TIFF OMITTED] TP05DE17.002

    (2) Revise the ``Extended Range Operations'' section of Section 
3 Normal Procedures of the AFM by incorporating the information 
specified in figure 4 to paragraph (h)(2) of this AD. This may be 
done by inserting a copy of this AD into the AFM. When a statement 
identical to that in figure 4 to paragraph (h)(2) of this AD has 
been included in the Extended Range Operations section of Section 3 
Normal Procedures of the AFM, the general revisions may be inserted 
into the AFM, and the copy of this AD may be removed from the AFM.
[GRAPHIC] [TIFF OMITTED] TP05DE17.003

(i) AFM Revisions for Model 767 Airplanes Equipped With a Single Fuel 
Crossfeed Valve

    For airplanes identified in paragraph (c)(3) of this AD having 
line numbers 1 through 430 inclusive on which the actions specified 
in Boeing Service Bulletin 767-28-0034 (second fuel crossfeed valve 
installation) have not been done as of the effective date of this 
AD: Within 120 days after the effective date of this AD, do the 
actions specified in paragraphs (i)(1) and (i)(2) of this AD. If the 
actions specified in Boeing Service Bulletin 767-28-0034 are done 
after the effective date of this AD, the actions specified in this 
paragraph are no longer required for that airplane and the actions 
specified in paragraph (k) of this AD must be done before further 
flight.
    (1) Revise the ``Extended Range Operations'' section of the 
Section 1 Certificate Limitations of the AFM by incorporating the 
information specified in figure 5 to paragraph (i)(1) of this AD. 
This may be done by inserting a copy of this AD into the AFM. When a 
statement identical to that in figure 5 to paragraph (i)(1) of this 
AD has been included in the ``Extended Range Operations'' section of 
the Section 1 Certificate Limitations of the general revisions of 
the AFM, the general revisions may be inserted into the AFM, and the 
copy of this AD may be removed from the AFM.
[GRAPHIC] [TIFF OMITTED] TP05DE17.004

    (2) Revise the Section 3.1 Normal Procedures of the AFM by 
incorporating the information specified in figure 6 to paragraph 
(i)(2) of this AD. This may be done by inserting a copy of this AD 
into the AFM. When a statement identical to that in figure

[[Page 57387]]

6 to paragraph (i)(2) of this AD has been included in the Extended 
Range Operations section of Section 3.1 Normal Procedures of the 
AFM, the general revisions may be inserted into the AFM, and the 
copy of this AD may be removed from the AFM.
[GRAPHIC] [TIFF OMITTED] TP05DE17.005

(j) Minimum Equipment List (MEL) Revisions for Model 757 Equipped With 
Dual Fuel Crossfeed Valves

    For airplanes identified in paragraph (c)(2) of this AD having 
line numbers 617, 619, and subsequent; and for airplanes identified 
in paragraph (c)(2) of this AD having line numbers 1 through 616 
inclusive and 618, on which a second fuel crossfeed valve has been 
installed before the effective date of this AD, as specified in 
Boeing Service Bulletin 757-28-0029: Within 120 days after the 
effective date of this AD, revise the operator's FAA-approved MEL by 
incorporating the information specified in figure 7 to paragraph (j) 
of this AD as a required operations procedure when dispatching for 
ETOPS operation with an inoperative fuel crossfeed valve. Specific 
alternative MEL wording to accomplish the actions specified in 
figure 7 to paragraph (j) of this AD can be approved by the 
operator's principal operations inspector (POI).
[GRAPHIC] [TIFF OMITTED] TP05DE17.006

(k) MEL Revisions for Model 767 Equipped With Dual Fuel Crossfeed 
Valves

    For airplanes identified in paragraph (c)(3) of this AD having 
line numbers 431 and subsequent; and for airplanes identified in 
paragraph (c)(3) of this AD having line numbers 1 through 430 
inclusive on which a second fuel crossfeed valve has been installed 
before the effective date of this AD, as specified in Boeing Service 
Bulletin 767-28-0034: Within 120 days after the effective date of 
this AD, revise the operator's FAA-approved MEL by incorporating the 
information specified in figure 8 to paragraph (k) of this AD as a 
required operations procedure when dispatching for ETOPS operation 
with an inoperative fuel crossfeed valve. Specific alternative MEL 
wording to accomplish the actions specified in figure 8 to paragraph 
(k) of this AD can be approved by the operator's POI.

[[Page 57388]]

[GRAPHIC] [TIFF OMITTED] TP05DE17.007

(l) MEL Revisions for Model 777 Airplanes

    For airplanes identified in paragraph (c)(4) of this AD: Within 
120 days after the effective date of this AD, revise the operator's 
FAA-approved MEL by incorporating the information specified in 
figure 9 to paragraph (l) of this AD as a required operations 
procedure when dispatching for ETOPS operation with an inoperative 
fuel crossfeed valve. Specific alternative MEL wording to accomplish 
the actions specified in figure 9 to paragraph (l) of this AD can be 
approved by the operator's POI.
[GRAPHIC] [TIFF OMITTED] TP05DE17.008

(m) MEL Revisions for Model 787 Airplanes

    For airplanes identified in paragraph (c)(5) of this AD: Within 
120 days after the effective date of this AD, revise the operator's 
FAA-approved MEL by incorporating the information specified in 
figure 10 to paragraph (m) of this AD into the MEL requirements for 
each of the inoperative items specified in paragraphs (m)(1) through 
(m)(4) of this AD. Specific alternative MEL wording to accomplish 
the actions specified in figure 10 to paragraph (m) of this AD can 
be approved by the operator's POI.
    (1) 28-21-01-01 Pressure Refueling System, Main Tank Inboard 
Refuel Valve.
    (2) 28-22-06 Fuel Balance Switch.
    (3) 28-26-01 Defuel/Isolation Valves.
    (4) 28-41-01-01 Main Tank Fuel Quantity Indication Systems.

[[Page 57389]]

[GRAPHIC] [TIFF OMITTED] TP05DE17.009

(n) AD 88-21-03 R1, Amendment 39-6077 (53 FR 46605-01, November 18, 
1988), AFM Limitation Removal

    After the applicable AFM limitations specified in paragraphs 
(g)(1), (h)(1), and (i)(1) of this AD are incorporated into an 
airplane's AFM, operators may remove the AFM limitation required by 
AD 88-21-03 R1, Amendment 39-6077 (53 FR 46605-01, November 18, 
1988), for that airplane.

(o) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Seattle ACO Branch, 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 certification office, send it to the attention of the 
person identified in paragraph (p) 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.
    (3) An AMOC that provides an acceptable level of safety may be 
used for any repair, modification, or alteration required by this AD 
if it is approved by the Boeing Commercial Airplanes Organization 
Designation Authorization (ODA) that has been authorized by the 
Manager, Seattle ACO Branch, to make those findings. To be approved, 
the repair method, modification deviation, or alteration deviation 
must meet the certification basis of the airplane, and the approval 
must specifically refer to this AD.

(p) Related Information

    For more information about this AD, contact Jon Regimbal, 
Aerospace Engineer, Propulsion Section, FAA, Seattle ACO Branch, 
1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6506; 
fax: 425-917-6590; email: [email protected].

    Issued in Renton, Washington, on November 6, 2017.
Dionne Palermo,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2017-24811 Filed 12-4-17; 8:45 am]
 BILLING CODE 4910-13-P



                                                                                                                                                                                                  57383

                                                  Proposed Rules                                                                                                Federal Register
                                                                                                                                                                Vol. 82, No. 232

                                                                                                                                                                Tuesday, December 5, 2017



                                                  This section of the FEDERAL REGISTER                    W12–140, 1200 New Jersey Avenue SE.,                  until an attempt is made to open the
                                                  contains notices to the public of the proposed          Washington, DC 20590.                                 fuel crossfeed valve. Depending on the
                                                  issuance of rules and regulations. The                    • Hand Delivery: Deliver to Mail                    operational use of the airplane, such a
                                                  purpose of these notices is to give interested          address above between 9 a.m. and 5                    failure could remain latent for multiple
                                                  persons an opportunity to participate in the            p.m., Monday through Friday, except                   flights. Some of the affected airplanes
                                                  rule making prior to the adoption of the final
                                                  rules.
                                                                                                          Federal holidays.                                     have only one fuel crossfeed valve.
                                                                                                                                                                Other affected airplanes have two
                                                                                                          Examining the AD Docket
                                                                                                                                                                redundant fuel crossfeed valves, but are
                                                  DEPARTMENT OF TRANSPORTATION                              You may examine the AD docket on                    allowed to be dispatched under their
                                                                                                          the Internet at http://                               MEL with one of the two fuel crossfeed
                                                  Federal Aviation Administration                         www.regulations.gov by searching for                  valves inoperative and locked closed.
                                                                                                          and locating Docket No. FAA–2017–                     Model 787 airplanes have a single
                                                  14 CFR Part 39                                          1024; or in person at the Docket                      crossfeed valve and a separate fuel
                                                                                                          Management Facility between 9 a.m.                    balancing system, either of which
                                                  [Docket No. FAA–2017–1024; Product                      and 5 p.m., Monday through Friday,                    allows use of all of the main tank fuel
                                                  Identifier 2017–NM–065–AD]                              except Federal holidays. The AD docket                by either engine. The Model 787 MEL
                                                  RIN 2120–AA64
                                                                                                          contains this NPRM, the regulatory                    allows airplanes to be dispatched with
                                                                                                          evaluation, any comments received, and                the fuel balancing system inoperative.
                                                  Airworthiness Directives; The Boeing                    other information. The street address for                If an engine failure occurs during
                                                  Company Airplanes                                       the Docket Office (phone: 800–647–                    certain portions of the cruise phase of
                                                                                                          5527) is in the ADDRESSES section.                    an ETOPS flight and the fuel crossfeed
                                                  AGENCY: Federal Aviation                                Comments will be available in the AD
                                                  Administration (FAA), DOT.                                                                                    valve cannot be opened, the fuel in the
                                                                                                          docket shortly after receipt.                         main tank associated with the failed
                                                  ACTION: Notice of proposed rulemaking                   FOR FURTHER INFORMATION CONTACT: Jon                  engine cannot be used by the remaining
                                                  (NPRM).                                                 Regimbal, Aerospace Engineer,                         operative engine, potentially resulting
                                                                                                          Propulsion Section, FAA, Seattle ACO                  in a forced off-airport landing due to
                                                  SUMMARY:   We propose to adopt a new                    Branch, 1601 Lind Avenue SW., Renton,
                                                  airworthiness directive (AD) for all The                                                                      exhaustion of the remaining usable fuel
                                                                                                          WA 98057–3356; phone: 425–917–6506;                   and consequent loss of all engine thrust.
                                                  Boeing Company Model 737–300, –400,                     fax: 425–917–6590; email:
                                                  –500, –600, –700, –700C, –800, –900,                    Jon.Regimbal@faa.gov.                                 FAA’s Determination
                                                  and –900ER series airplanes; Model 757
                                                  airplanes; Model 767 airplanes; Model                   SUPPLEMENTARY INFORMATION:                              We are proposing this AD because we
                                                  777 airplanes; and Model 787–8 and                      Comments Invited                                      evaluated all the relevant information
                                                  787–9 airplanes. This proposed AD was                                                                         and determined the unsafe condition
                                                                                                            We invite you to send any written                   described previously is likely to exist or
                                                  prompted by reports of fuel crossfeed
                                                                                                          relevant data, views, or arguments about              develop in other products of the same
                                                  valves failing to open when activated
                                                                                                          this proposal. Send your comments to                  type designs.
                                                  during flight. This proposed AD would
                                                                                                          an address listed under the ADDRESSES
                                                  require, for certain airplanes, revising                                                                      Proposed AD Requirements
                                                                                                          section. Include ‘‘Docket No. FAA–
                                                  the airplane flight manual (AFM); and
                                                                                                          2017–1024; Product Identifier 2017–
                                                  for certain other airplanes, revising the                                                                        For airplanes equipped with a single
                                                                                                          NM–065–AD’’ at the beginning of your
                                                  minimum equipment list (MEL) to do an                                                                         fuel crossfeed valve, this proposed AD
                                                                                                          comments. We specifically invite
                                                  operational check of the fuel crossfeed                                                                       would require revising the limitation
                                                                                                          comments on the overall regulatory,
                                                  valve prior to each extended range                                                                            and normal procedures sections of the
                                                                                                          economic, environmental, and energy
                                                  operations (ETOPS) flight if one fuel                                                                         AFM by adding an operational check of
                                                                                                          aspects of this NPRM. We will consider
                                                  crossfeed valve (or the fuel balancing                                                                        the fuel crossfeed valve immediately
                                                                                                          all comments received by the closing
                                                  system on Model 787 airplanes) is                                                                             prior to each ETOPS flight. For
                                                                                                          date and may amend this NPRM
                                                  inoperative. We are proposing this AD                                                                         airplanes equipped with dual fuel
                                                                                                          because of those comments.
                                                  to address the unsafe condition on these                                                                      crossfeed valves, this proposed AD
                                                                                                             We will post all comments we
                                                  products.                                                                                                     would require revising the MEL by
                                                                                                          receive, without change, to http://
                                                  DATES: We must receive comments on                      www.regulations.gov, including any                    adding a requirement to do an
                                                  this proposed AD by January 19, 2018.                   personal information you provide. We                  operational check of the fuel crossfeed
                                                  ADDRESSES: You may send comments,                       will also post a report summarizing each              valve prior to each ETOPS flight if one
                                                  using the procedures found in 14 CFR                    substantive verbal contact we receive                 fuel crossfeed valve (or the fuel
                                                  11.43 and 11.45, by any of the following                about this NPRM.                                      balancing system on Model 787
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                                                  methods:                                                                                                      airplanes) is inoperative.
                                                    • Federal eRulemaking Portal: Go to                   Discussion                                               This proposed AD would allow
                                                  http://www.regulations.gov. Follow the                     We have received reports of fuel                   removal of the AFM limitation required
                                                  instructions for submitting comments.                   crossfeed valves failing to open when                 by AD 88–21–03 R1, Amendment 39–
                                                    • Fax: 202–493–2251.                                  activated during flight. The fuel                     6077 (53 FR 46605, November 18, 1988)
                                                    • Mail: U.S. Department of                            crossfeed valve can fail closed due to                (‘‘88–21–03 R1’’), after the applicable
                                                  Transportation, Docket Operations, M–                   electrical or mechanical faults. Such a               AFM limitations in this proposed AD
                                                  30, West Building Ground Floor, Room                    failure would remain undiscovered                     are incorporated in the AFM.


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                                                  57384                 Federal Register / Vol. 82, No. 232 / Tuesday, December 5, 2017 / Proposed Rules

                                                  Related AD                                              operational check of the fuel crossfeed               Costs of Compliance
                                                    AD 88–21–03 R1 applies to, among                      valve during the last hour of cruise
                                                                                                          flight during each ETOPS flight and log                  We estimate that this proposed AD
                                                  other airplanes, certain Model 737–200,                                                                       affects 3,252 airplanes of U.S. registry.
                                                  737–300, 757–200, 767–200, and 767–                     book entry of any fuel crossfeed valve
                                                                                                          failure conditions, and repair if                     We estimate the following costs to
                                                  300 series airplanes. AD 88–21–03 R1
                                                                                                          necessary.                                            comply with this proposed AD:
                                                  requires revising the AFM to include an

                                                                                                                       ESTIMATED COSTS
                                                                                                                                                                                  Cost per       Cost on U.S.
                                                                        Action                                              Labor cost                          Parts cost        product         operators

                                                  AFM Revision (2,127 airplanes) .....................   1 work-hour × $85 per hour = $85 .................                  $0          $85         $180,795
                                                  MEL Revision (1,125 airplanes) .....................   1 work-hour × $85 per hour = $85 .................                   0           85           95,625



                                                  Authority for This Rulemaking                             For the reasons discussed above, I                  (c) Applicability
                                                                                                          certify this proposed regulation:                        This AD applies to all The Boeing
                                                     Title 49 of the United States Code                                                                         Company airplanes, certificated in any
                                                  specifies the FAA’s authority to issue                    (1) Is not a ‘‘significant regulatory
                                                                                                          action’’ under Executive Order 12866,                 category, identified in paragraphs (c)(1)
                                                  rules on aviation safety. Subtitle I,                                                                         through (c)(5) of this AD.
                                                  section 106, describes the authority of                   (2) Is not a ‘‘significant rule’’ under                (1) Model 737–300, –400, –500, –600, –700,
                                                  the FAA Administrator. Subtitle VII:                    the DOT Regulatory Policies and                       –700C, –800, –900, and –900ER series
                                                  Aviation Programs, describes in more                    Procedures (44 FR 11034, February 26,                 airplanes.
                                                                                                          1979),                                                   (2) Model 757–200, –200PF, –200CB, and
                                                  detail the scope of the Agency’s                                                                              –300 series airplanes.
                                                  authority.                                                (3) Will not affect intrastate aviation                (3) Model 767–200, –300, –300F, and
                                                     We are issuing this rulemaking under                 in Alaska, and                                        –400ER series airplanes.
                                                  the authority described in Subtitle VII,                  (4) Will not have a significant                        (4) Model 777–200, –200LR, –300, –300ER,
                                                  Part A, Subpart III, Section 44701:                     economic impact, positive or negative,                and –777F series airplanes.
                                                                                                                                                                   (5) Model 787–8 and 787–9 airplanes.
                                                  ‘‘General requirements.’’ Under that                    on a substantial number of small entities
                                                  section, Congress charges the FAA with                  under the criteria of the Regulatory                  (d) Subject
                                                  promoting safe flight of civil aircraft in              Flexibility Act.                                        Air Transport Association (ATA) of
                                                  air commerce by prescribing regulations                                                                       America Code 28; Fuel.
                                                                                                          List of Subjects in 14 CFR Part 39
                                                  for practices, methods, and procedures                                                                        (e) Unsafe Condition
                                                  the Administrator finds necessary for                     Air transportation, Aircraft, Aviation                 This AD was prompted by reports of fuel
                                                  safety in air commerce. This regulation                 safety, Incorporation by reference,                   crossfeed valves failing to open when
                                                  is within the scope of that authority                   Safety.                                               activated during flight. We are issuing this
                                                  because it addresses an unsafe condition                                                                      AD to prevent an airplane from being
                                                  that is likely to exist or develop on                   The Proposed Amendment                                dispatched on an extended range operations
                                                  products identified in this rulemaking                    Accordingly, under the authority                    (ETOPS) flight with a single fuel crossfeed
                                                  action.                                                                                                       valve that cannot be opened. This condition
                                                                                                          delegated to me by the Administrator,                 could cause the fuel in the main tank
                                                     This AD is issued in accordance with                 the FAA proposes to amend 14 CFR part                 associated with a failed engine to be
                                                  authority delegated by the Executive                    39 as follows:                                        unavailable to the remaining operative
                                                  Director, Aircraft Certification Service,                                                                     engine, potentially resulting in a forced
                                                  as authorized by FAA Order 8000.51C.                    PART 39—AIRWORTHINESS                                 offairport landing due to exhaustion of the
                                                  In accordance with that order, issuance                 DIRECTIVES                                            remaining usable fuel and consequent loss of
                                                  of ADs is normally a function of the                                                                          all engine thrust.
                                                  Compliance and Airworthiness                            ■ 1. The authority citation for part 39               (f) Compliance
                                                  Division, but during this transition                    continues to read as follows:
                                                                                                                                                                   Comply with this AD within the
                                                  period, the Executive Director has                          Authority: 49 U.S.C. 106(g), 40113, 44701.        compliance times specified, unless already
                                                  delegated the authority to issue ADs                                                                          done.
                                                  applicable to transport category                        § 39.13   [Amended]
                                                                                                                                                                (g) AFM Revisions for Model 737 Airplanes
                                                  airplanes to the Director of the System                 ■ 2. The FAA amends § 39.13 by adding                 Equipped With a Single Fuel Crossfeed
                                                  Oversight Division.                                     the following new airworthiness                       Valve
                                                  Regulatory Findings                                     directive (AD):                                          For airplanes identified in paragraph (c)(1)
                                                                                                          The Boeing Company: Docket No. FAA–                   of this AD: Within 120 days after the effective
                                                    We determined that this proposed AD                       2017–1024; Product Identifier 2017–               date of this AD, do the actions in specified
                                                  would not have federalism implications                      NM–065–AD.                                        in paragraphs (g)(1) and (g)(2) of this AD.
                                                  under Executive Order 13132. This                                                                                (1) Revise ‘‘Extended Range Operations’’
                                                                                                          (a) Comments Due Date                                 subsection of the ‘‘Fuel System Limitations’’
                                                  proposed AD would not have a
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                                                  substantial direct effect on the States, on               We must receive comments by January 19,             section of the Section 1 Certificate
                                                                                                          2018.                                                 Limitations of the airplane flight manual
                                                  the relationship between the national                                                                         (AFM) by incorporating the information
                                                  Government and the States, or on the                    (b) Affected ADs                                      specified in figure 1 to paragraph (g)(1) of
                                                  distribution of power and                                 This AD affects AD 88–21–03 R1,                     this AD. This may be done by inserting a
                                                  responsibilities among the various                      Amendment 39–6077 (53 FR 46605,                       copy of this AD into the AFM. When a
                                                  levels of government.                                   November 18, 1988).                                   statement identical to that in figure 1 to




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                                                                        Federal Register / Vol. 82, No. 232 / Tuesday, December 5, 2017 / Proposed Rules                                             57385

                                                  paragraph (g)(1) of this AD has been included           section of the Section 1 Certificate                  into the AFM, and the copy of this AD may
                                                  in the ‘‘Extended Range Operations’’                    Limitations of the general revisions of the           be removed from the AFM.
                                                  subsection of the ‘‘Fuel System Limitations’’           AFM, the general revisions may be inserted




                                                     (2) Revise the ‘‘Extended Range                      inserting a copy of this AD into the AFM.             Procedures of the AFM, the general revisions
                                                  Operations’’ section of the Section 3 Normal            When a statement identical to that in figure          may be inserted into the AFM, and the copy
                                                  Procedures of the AFM by incorporating the              2 to paragraph (g)(2) of this AD has been             of this AD may be removed from the AFM.
                                                  information specified in figure 2 to paragraph          included in the ‘‘Extended Range
                                                  (g)(2) of this AD. This may be done by                  Operations’’ section of Section 3 Normal




                                                  (h) AFM Revisions for Model 757 Airplanes               identified in this paragraph, if the actions          Certificate Limitations of the AFM by
                                                  Equipped With a Single Fuel Crossfeed                   specified in Boeing Service Bulletin 757–28–          incorporating the information specified in
                                                  Valve                                                   0029 are done after the effective date of this        figure 3 to paragraph (h)(1). This may be
                                                    For airplanes identified in paragraph (c)(2)          AD, then the actions specified in this                done by inserting a copy of this AD into the
                                                  of this AD having line numbers 1 through                paragraph are no longer required for that             AFM. When a statement identical to that in
                                                  616 inclusive and 618 on which the actions              airplane and the actions specified in                 figure 3 to paragraph (h)(1) of this AD has
                                                  specified in Boeing Service Bulletin 757–28–            paragraph (j) of this AD must be done before          been included in the ‘‘Extended Range
                                                  0029 (second fuel crossfeed valve                       further flight after performing the actions           Operations’’ section of the Section 1
                                                  installation) have not been done: Within 120            specified in Boeing Service Bulletin 757–28–          Certificate Limitations of the general
                                                  days after the effective date of this AD, do the        0029.                                                 revisions of the AFM, the general revisions
                                                  actions specified in paragraphs (h)(1) and                (1) Revise the ‘‘Extended Range                     may be inserted into the AFM, and the copy
                                                  (h)(2) of this AD. For Model 757 airplanes              Operations’’ section of the Section 1                 of this AD may be removed from the AFM.
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                                                  57386                 Federal Register / Vol. 82, No. 232 / Tuesday, December 5, 2017 / Proposed Rules




                                                    (2) Revise the ‘‘Extended Range                       inserting a copy of this AD into the AFM.             AFM, the general revisions may be inserted
                                                  Operations’’ section of Section 3 Normal                When a statement identical to that in figure          into the AFM, and the copy of this AD may
                                                  Procedures of the AFM by incorporating the              4 to paragraph (h)(2) of this AD has been             be removed from the AFM.
                                                  information specified in figure 4 to paragraph          included in the Extended Range Operations
                                                  (h)(2) of this AD. This may be done by                  section of Section 3 Normal Procedures of the




                                                  (i) AFM Revisions for Model 767 Airplanes               paragraphs (i)(1) and (i)(2) of this AD. If the       incorporating the information specified in
                                                  Equipped With a Single Fuel Crossfeed                   actions specified in Boeing Service Bulletin          figure 5 to paragraph (i)(1) of this AD. This
                                                  Valve                                                   767–28–0034 are done after the effective date         may be done by inserting a copy of this AD
                                                     For airplanes identified in paragraph (c)(3)         of this AD, the actions specified in this             into the AFM. When a statement identical to
                                                  of this AD having line numbers 1 through                paragraph are no longer required for that             that in figure 5 to paragraph (i)(1) of this AD
                                                  430 inclusive on which the actions specified            airplane and the actions specified in                 has been included in the ‘‘Extended Range
                                                  in Boeing Service Bulletin 767–28–0034                  paragraph (k) of this AD must be done before          Operations’’ section of the Section 1
                                                  (second fuel crossfeed valve installation)              further flight.                                       Certificate Limitations of the general
                                                  have not been done as of the effective date               (1) Revise the ‘‘Extended Range                     revisions of the AFM, the general revisions
                                                  of this AD: Within 120 days after the effective         Operations’’ section of the Section 1                 may be inserted into the AFM, and the copy
                                                  date of this AD, do the actions specified in            Certificate Limitations of the AFM by                 of this AD may be removed from the AFM.



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                                                    (2) Revise the Section 3.1 Normal                     information specified in figure 6 to paragraph        inserting a copy of this AD into the AFM.
                                                  Procedures of the AFM by incorporating the              (i)(2) of this AD. This may be done by                When a statement identical to that in figure
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                                                                        Federal Register / Vol. 82, No. 232 / Tuesday, December 5, 2017 / Proposed Rules                                             57387

                                                  6 to paragraph (i)(2) of this AD has been               section of Section 3.1 Normal Procedures of           inserted into the AFM, and the copy of this
                                                  included in the Extended Range Operations               the AFM, the general revisions may be                 AD may be removed from the AFM.




                                                  (j) Minimum Equipment List (MEL)                        numbers 1 through 616 inclusive and 618, on           (j) of this AD as a required operations
                                                  Revisions for Model 757 Equipped With                   which a second fuel crossfeed valve has been          procedure when dispatching for ETOPS
                                                  Dual Fuel Crossfeed Valves                              installed before the effective date of this AD,       operation with an inoperative fuel crossfeed
                                                                                                          as specified in Boeing Service Bulletin 757–          valve. Specific alternative MEL wording to
                                                    For airplanes identified in paragraph (c)(2)
                                                                                                          28–0029: Within 120 days after the effective          accomplish the actions specified in figure 7
                                                  of this AD having line numbers 617, 619, and            date of this AD, revise the operator’s FAA-           to paragraph (j) of this AD can be approved
                                                  subsequent; and for airplanes identified in             approved MEL by incorporating the                     by the operator’s principal operations
                                                  paragraph (c)(2) of this AD having line                 information specified in figure 7 to paragraph        inspector (POI).




                                                  (k) MEL Revisions for Model 767 Equipped                a second fuel crossfeed valve has been                (k) of this AD as a required operations
                                                  With Dual Fuel Crossfeed Valves                         installed before the effective date of this AD,       procedure when dispatching for ETOPS
                                                    For airplanes identified in paragraph (c)(3)          as specified in Boeing Service Bulletin 767–          operation with an inoperative fuel crossfeed
                                                  of this AD having line numbers 431 and                  28–0034: Within 120 days after the effective          valve. Specific alternative MEL wording to
                                                  subsequent; and for airplanes identified in             date of this AD, revise the operator’s FAA-           accomplish the actions specified in figure 8
                                                  paragraph (c)(3) of this AD having line                 approved MEL by incorporating the                     to paragraph (k) of this AD can be approved
                                                  numbers 1 through 430 inclusive on which                information specified in figure 8 to paragraph        by the operator’s POI.
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                                                  57388                 Federal Register / Vol. 82, No. 232 / Tuesday, December 5, 2017 / Proposed Rules




                                                  (l) MEL Revisions for Model 777 Airplanes               approved MEL by incorporating the                     valve. Specific alternative MEL wording to
                                                    For airplanes identified in paragraph (c)(4)          information specified in figure 9 to paragraph        accomplish the actions specified in figure 9
                                                                                                          (l) of this AD as a required operations               to paragraph (l) of this AD can be approved
                                                  of this AD: Within 120 days after the effective
                                                                                                          procedure when dispatching for ETOPS                  by the operator’s POI.
                                                  date of this AD, revise the operator’s FAA-             operation with an inoperative fuel crossfeed




                                                  (m) MEL Revisions for Model 787 Airplanes               paragraph (m) of this AD into the MEL                   (1) 28–21–01–01 Pressure Refueling
                                                    For airplanes identified in paragraph (c)(5)          requirements for each of the inoperative              System, Main Tank Inboard Refuel Valve.
                                                                                                          items specified in paragraphs (m)(1) through            (2) 28–22–06 Fuel Balance Switch.
                                                  of this AD: Within 120 days after the effective
                                                                                                          (m)(4) of this AD. Specific alternative MEL             (3) 28–26–01 Defuel/Isolation Valves.
                                                  date of this AD, revise the operator’s FAA-             wording to accomplish the actions specified
                                                  approved MEL by incorporating the                                                                               (4) 28–41–01–01 Main Tank Fuel Quantity
                                                                                                          in figure 10 to paragraph (m) of this AD can
                                                  information specified in figure 10 to                                                                         Indication Systems.
                                                                                                          be approved by the operator’s POI.
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                                                                        Federal Register / Vol. 82, No. 232 / Tuesday, December 5, 2017 / Proposed Rules                                                57389




                                                  (n) AD 88–21–03 R1, Amendment 39–6077                   information directly to the manager of the            the certification basis of the airplane, and the
                                                  (53 FR 46605–01, November 18, 1988), AFM                certification office, send it to the attention of     approval must specifically refer to this AD.
                                                  Limitation Removal                                      the person identified in paragraph (p) of this
                                                                                                          AD. Information may be emailed to: 9-ANM-             (p) Related Information
                                                     After the applicable AFM limitations
                                                  specified in paragraphs (g)(1), (h)(1), and             Seattle-ACO-AMOC-Requests@faa.gov.                      For more information about this AD,
                                                  (i)(1) of this AD are incorporated into an                (2) Before using any approved AMOC,                 contact Jon Regimbal, Aerospace Engineer,
                                                  airplane’s AFM, operators may remove the                notify your appropriate principal inspector,          Propulsion Section, FAA, Seattle ACO
                                                  AFM limitation required by AD 88–21–03 R1,              or lacking a principal inspector, the manager
                                                                                                                                                                Branch, 1601 Lind Avenue SW., Renton, WA
                                                  Amendment 39–6077 (53 FR 46605–01,                      of the local flight standards district office/
                                                                                                          certificate holding district office.                  98057–3356; phone: 425–917–6506; fax: 425–
                                                  November 18, 1988), for that airplane.                                                                        917–6590; email: Jon.Regimbal@faa.gov.
                                                                                                            (3) An AMOC that provides an acceptable
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                                                  (o) Alternative Methods of Compliance                   level of safety may be used for any repair,             Issued in Renton, Washington, on
                                                  (AMOCs)                                                 modification, or alteration required by this          November 6, 2017.
                                                    (1) The Manager, Seattle ACO Branch,                  AD if it is approved by the Boeing
                                                                                                          Commercial Airplanes Organization                     Dionne Palermo,
                                                  FAA, has the authority to approve AMOCs
                                                  for this AD, if requested using the procedures          Designation Authorization (ODA) that has              Acting Director, System Oversight Division,
                                                  found in 14 CFR 39.19. In accordance with               been authorized by the Manager, Seattle ACO           Aircraft Certification Service.
                                                  14 CFR 39.19, send your request to your                 Branch, to make those findings. To be                 [FR Doc. 2017–24811 Filed 12–4–17; 8:45 am]
                                                  principal inspector or local Flight Standards           approved, the repair method, modification
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                                                  District Office, as appropriate. If sending             deviation, or alteration deviation must meet



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Document Created: 2017-12-04 23:45:31
Document Modified: 2017-12-04 23:45:31
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 January 19, 2018.
ContactJon Regimbal, Aerospace Engineer, Propulsion Section, FAA, Seattle ACO Branch, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6506; fax: 425-917-6590; email: [email protected]
FR Citation82 FR 57383 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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