Document ID: FAA-2013-0797-0008
Agency: faa
Document Type: Proposed Rule
Title: Airworthiness Directives: The Boeing Company Airplanes
Posted Date: 2016-05-27T04:00Z

[Federal Register Volume 81, Number 103 (Friday, May 27, 2016)]
[Proposed Rules]
[Pages 33612-33617]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-12353]

[[Page 33612]]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2013-0797; Directorate Identifier 2013-NM-007-AD]
RIN 2120-AA64

Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Supplemental notice of proposed rulemaking (NPRM); reopening of 
comment period.

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SUMMARY: We are revising an earlier proposed airworthiness directive 
(AD) for certain The Boeing Company Model 767-300 and 767-300F series 
airplanes. The NPRM proposed to require modification and installation 
of components in the main equipment center. For certain other 
airplanes, the NPRM proposed to require modification, replacement, and 
installation of flight deck air relief system (FDARS) components. The 
NPRM was prompted by reports of malfunctions in the flight deck display 
units, which resulted in blanking, blurring, or loss of color on the 
display. This action revises the NPRM by revising the applicability; 
adding certain modifications; and clarifying certain requirements. We 
are proposing this supplemental NPRM (SNPRM) to prevent malfunctions of 
the flight deck display units, which could affect the ability of the 
flightcrew to read the displays for airplane attitude, altitude, or 
airspeed, and consequently reduce the ability of the flightcrew to 
maintain control of the airplane. Since these actions impose an 
additional burden over that proposed in the NPRM, we are reopening the 
comment period to allow the public the chance to comment on these 
proposed changes.

DATES: We must receive comments on this SNPRM by July 11, 2016.

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: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590, between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays.
    For service information identified in this SNPRM, 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. It 
is also available on the Internet at http://www.regulations.gov by 
searching for and locating Docket No. FAA-2013-0797.

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-2013-
0797; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this proposed AD, the regulatory evaluation, any comments 
received, and other information. The street address for the Docket 
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: Francis Smith, Aerospace Engineer, 
Cabin Safety and Environmental Controls Branch, ANM-150S, FAA, Seattle 
Aircraft Certification Office, 1601 Lind Avenue SW., Renton, WA 98057-
3356; phone: 425-917-6596; fax: 425-917-6590; email: 
francis.smith@faa.gov.

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2013-0797; 
Directorate Identifier 2013-NM-007-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD 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 proposed AD.

Discussion

    We issued an NPRM to amend 14 CFR part 39 by adding an AD that 
would apply to certain The Boeing Company Model 767-300 and 767-300F 
series airplanes. The NPRM published in the Federal Register on 
September 25, 2013 (78 FR 58970) (``the NPRM''). The NPRM proposed to 
require modification and installation of components in the main 
equipment center. For certain other airplanes, the NPRM proposed to 
require modification, replacement, and installation of FDARS 
components.

Actions Since the NPRM Was Issued

    Since we issued the NPRM, we have reviewed Boeing Alert Service 
Bulletin 767-21A0245, Revision 2, dated September 27, 2013 (for Model 
767-300F series airplanes). We referred to Boeing Alert Service 
Bulletin 767-21-0245, Revision 1, dated September 30, 2010, as an 
appropriate source of service information for accomplishing certain 
actions specified in the NPRM. Boeing Alert Service Bulletin 767-
21A0245, Revision 2, dated September 27, 2013, adds instructions for 
modifications to reduce noise in the flight compartment when the 3-way 
valve is operating by removing flex ducts that connect the center and 
aft parts of the air distribution diffuser in the main deck cargo 
compartment, installing caps and an orifice assembly in the area 
forward of the main equipment center and under the flight deck floor, 
and installing an FDARS. Boeing Alert Service Bulletin 767-21A0245, 
Revision 2, dated September 27, 2013, also identifies concurrent 
actions (relay installation and related wiring changes). Those 
concurrent actions are described in Boeing Service Bulletin 767-21-
0235, dated October 8, 2009; and Boeing Service Bulletin 767-21-0235, 
Revision 1, dated July 29, 2011.
    We have also reviewed Boeing Alert Service Bulletin 767-21A0247, 
Revision 1, dated April 9, 2013 (for Model 767-300F series airplanes). 
We referred to Boeing Alert Service Bulletin 767-21A0247, dated October 
10, 2011, as an appropriate source of service information for 
accomplishing certain actions specified in the NPRM. Boeing Alert 
Service Bulletin 767-21A0247, Revision 1, dated April 9, 2013, adds 
airplanes to the effectivity of the service bulletin and includes 
procedures for

[[Page 33613]]

changes to the 3-way valve control logic, modifications to reduce noise 
in the flight compartment and main cargo air distribution system 
(MCADS), and installation of an FDARS. The service bulletin also adds 
concurrent actions (relay installation and related wiring changes) for 
a certain group of airplanes. Those concurrent actions are described in 
Boeing Service Bulletin 767-21-0235, dated October 8, 2009; and Boeing 
Service Bulletin 767-21-0235, Revision 1, dated July 29, 2011.
    We also have reviewed Boeing Service Bulletin 767-31-0073, dated 
October 12, 1995, which is referred to as concurrent service 
information in Boeing Service Bulletin 767-21-0244, Revision 1, dated 
March 8, 2010 (which is referred to as an appropriate source of service 
information for changing the 3-way valve control logic and installing a 
cooling system for the flight deck display equipment). Boeing Service 
Bulletin 767-31-0073, dated October 12, 1995, describes procedures for 
installation of an in-flight engine indication and crew alerting system 
(EICAS) for the maintenance data selection system.
    We have revised paragraphs (c)(2), (h)(1), and (j) of this proposed 
AD to refer to Boeing Alert Service Bulletin 767-21A0245, Revision 2, 
dated September 27, 2013. We have also revised paragraphs (c)(3) and 
(h)(2) of this proposed AD to refer to Boeing Alert Service Bulletin 
767-21A0247, Revision 1, dated April 9, 2013.
    In addition, we removed paragraph (k) of the proposed AD (in the 
NPRM), ``Credit for Previous Actions,'' from this proposed AD because 
operators that have accomplished the actions in Boeing Service Bulletin 
767-21-0245, dated April 16, 2010; or Boeing Alert Service Bulletin 
767-21A0245, Revision 1, dated September 30, 2010; must do additional 
work when accomplishing the procedures specified in Boeing Alert 
Service Bulletin 767-21A0245, Revision 2, dated September 27, 2013. We 
have redesignated paragraph (j) of the proposed AD (in the NPRM), 
``Concurrent Requirements,'' as paragraph (k)(1) of this proposed AD. 
In addition, we have added a new paragraph (k)(2) to this proposed AD 
to address the concurrent actions (relay installation and related 
wiring changes) identified in Boeing Alert Service Bulletin 767-
21A0247, Revision 1, dated April 9, 2013.
    Also since the issuance of the NPRM, we have reviewed Boeing Alert 
Service Bulletin 767-21A0254, dated June 7, 2013 (which was not 
referenced in the NPRM). Boeing Alert Service Bulletin 767-21A0254, 
dated June 7, 2013, describes procedures for installing the FDARS and 
activating the 3-way valve control logic change for certain Model 767-
300F series airplanes. We have redesignated paragraph (g) of the 
proposed AD (in the NPRM) as paragraph (g)(1) of this proposed AD, and 
added a new paragraph (g)(2) to this proposed AD to require the actions 
in Boeing Alert Service Bulletin 767-21A0254, dated June 7, 2013.

Comments

    We gave the public the opportunity to comment on the NPRM. The 
following presents the comments received on the NPRM and the FAA's 
response to each comment.

Request To Clarify the Applicability of the Proposed AD (in the NPRM)

    Boeing requested we state that the proposed AD (in the NPRM) does 
not apply to Model 767-300 (passenger) series airplanes. Boeing 
explained that the 3-way valve control logic for Model 767-300 
(passenger) series airplanes is significantly different from the 3-way 
valve control logic for Model 767-300F and Model 767-300BCF (Boeing 
Converted Freighter) series airplanes. Boeing indicated that, on Model 
767-300 (passenger) series airplanes, pack air (which is a moisture 
source on the freighter airplanes) to the flight deck instruments and 
equipment is rarely used. Boeing added that Model 767-300 (passenger) 
series airplanes only utilize airplane pack air during override and 
fuel jettison modes, and there have not been reports of moisture-
related display blanking on these airplanes.
    We find that clarification is necessary. This proposed AD applies 
to Model 767-300 and 767-300F series airplanes, as identified in 
certain service information. ``Model 767-300 series airplanes'' could 
include both passenger and BCF series airplanes. According to the U.S. 
type certificate data sheet for Model 767 airplanes, a Model 767-300BCF 
series airplane is a Model 767-300 (passenger) series airplane that has 
been modified in accordance with specific service information to 
operate in a freighter configuration. The service information 
identified in the applicability of this proposed AD addresses Model 
767-300BCF series airplanes and Model 767-300F series airplanes--not 
passenger airplanes. Therefore, this proposed AD does not apply to 
Model 767-300 (passenger) series airplanes. We have added this 
clarification to paragraphs (c), (i), and (k)(3) of this proposed AD.

Request To Revise the Proposed AD (in the NPRM) To Remove Certain 
Service Information References

    Boeing asked that all references to Boeing Service Bulletin 767-21-
0240 be removed from the NPRM, including the applicability statement. 
Boeing stated that the intent of this service information is to 
incorporate display improvements on Model 767-300BCF series airplanes. 
Boeing has confirmed that the actions to prevent display unit blanking 
included in Boeing Service Bulletin 767-21-0240 have already been 
incorporated on Model 767-300BCF series airplanes during the 
conversion, prior to re-delivery.
    Boeing also asked that all references to Boeing Service Bulletin 
767-21-0244 be removed from the NPRM, including the applicability 
statement. Boeing stated that the intent of this service information is 
also to incorporate display improvements on Model 767-300BCF series 
airplanes. Boeing has confirmed that the actions to prevent display 
unit blanking included in Boeing Service Bulletin 767-21-0244 have 
already been incorporated on Model 767-300BCF series airplanes in 
advance of this proposed AD.
    Since Boeing Service Bulletin 767-21-0240 has been incorporated on 
the affected airplanes during the conversion and prior to re-delivery, 
we agree with the commenter's request to remove references to that 
service bulletin from this proposed AD. Paragraph (c) of this proposed 
AD has been revised to omit Boeing Service Bulletin 767-21-0240, 
Revision 1, dated November 12, 2009, from paragraph (c)(1), and 
subsequent subparagraphs in paragraph (c) have been redesignated 
accordingly.
    However, we do not agree with the commenter's request to remove 
references to Boeing Service Bulletin 767-21-0244 from this proposed 
AD. The commenter has not submitted documentation to the FAA for 
verification that the affected operators of Model 767-300BCF series 
airplanes have accomplished the actions to prevent display unit 
blanking that are included in Boeing Service Bulletin 767-21-0244, 
Revision 1, dated March 8, 2010. Therefore, Boeing Service Bulletin 
767-21-0244, Revision 1, dated March 8, 2010, is still referenced in 
this proposed AD.
    Paragraph (h)(3) of the proposed AD (in the NPRM) has been omitted 
from this proposed AD because it referred to Boeing Service Bulletin 
767-21-0240, Revision 1, dated November 12, 2009 (which affects 
airplanes on which the service information has been done during the 
conversion and prior to re-

[[Page 33614]]

delivery), and the airplanes identified in this service information 
have been removed from the applicability of this proposed AD, as 
explained previously. However, the requirements for the remaining Model 
767-300BCF series airplanes (i.e., those subject to accomplishment of 
Boeing Service Bulletin 767-21-0244) have been moved from paragraph 
(h)(3) of the proposed AD (in the NPRM) to new paragraph (i) of this 
proposed AD. Paragraph (k) of this proposed AD, which correlates to 
paragraph (j) of the proposed AD (in the NPRM), has been revised to 
remove the concurrent requirements for Model 767-300BCF series 
airplanes identified in Boeing Service Bulletin 767-21-0240, Revision 
1, dated November 12, 2009. The concurrent requirements for Model 767-
300BCF series airplanes identified in Boeing Service Bulletin 767-21-
0244, Revision 1, dated March 8, 2010, are retained in paragraph (k)(3) 
of this proposed AD.

Request To Clarify the Requirements of the Proposed AD (in the NPRM)

    Boeing requested that the requirements of the proposed AD for Model 
767-300BCF versus Model 767-300F series airplanes be clarified. Boeing 
stated that the intended function of the 3-way valve control logic 
change is to provide moisture control to mitigate display blanking; 
however, the intended function of the FDARS is to mitigate the noise 
that resulted from the 3-way valve control logic change, not to control 
moisture and mitigate display blanking. Boeing stated that the proposed 
3-way valve control logic change and addition of the FDARS should be 
required for Model 767-300F series airplanes, and only the 3-way valve 
control logic change should be required for Model 767-300BCF series 
airplanes.
    We agree to clarify the requirements of this proposed AD. In light 
of the commenter's remarks, we revised paragraphs (g)(1) and (g)(2) of 
this proposed AD to state that, for Model 767-300F series airplanes, 
the required actions include the installation of an FDARS and 
activation of or change to the 3-way valve control logic. We also 
revised the heading for paragraph (g) of this proposed AD accordingly.
    In addition, we revised paragraphs (h)(1) and (h)(2) of this 
proposed AD to state that, for Model 767-300F series airplanes 
identified in Boeing Alert Service Bulletin 767-21A0245, Revision 2, 
dated September 27, 2013, and Boeing Alert Service Bulletin 767-
21A0247, Revision 1, dated April 9, 2013, respectively, the required 
actions include a change of the 3-way valve control logic and MCADS, 
and installation of an FDARS. We also revised the heading for paragraph 
(h) of this proposed AD accordingly.
    As previously discussed, a new paragraph (i) is included in this 
proposed AD. This paragraph specifies that, for Model 767-300BCF series 
airplanes, only the installation of the 3-way valve control logic and 
flight deck display equipment cooling system is required. The 
subsequent paragraphs have been redesignated accordingly.

Request To Revise the Number of Affected Airplanes

    Boeing requested that the number of affected airplanes be changed 
from 43 to 58. Boeing stated that based on its current records of 
operators, there are 58 Model 767-300F series airplanes of U.S. 
registry.
    Based on the number of affected Model 767-300 and 767-300F series 
airplanes currently on the U.S. Register, we changed the number of 
affected airplanes to 52 in the ``Costs of Compliance'' section of this 
SNPRM. We also made additional changes to the ``Costs of Compliance'' 
section to account for any added requirement of this proposed AD.

Effect of Winglets on Accomplishment of the Proposed Actions

    Aviation Partners Boeing stated that the installation of winglets 
per Supplemental Type Certificate (STC) ST01920SE (http://rgl.faa.gov/
Regulatory_and_Guidance_Library/rgstc.nsf/0/
59027f43b9a7486e86257b1d006591ee/$FILE/ST01920SE.pdf) does not affect 
the accomplishment of the manufacturer's service instructions.
    We agree with the commenter that STC ST01920SE (http://rgl.faa.gov/
Regulatory_and_Guidance_Library/rgstc.nsf/0/
59027f43b9a7486e86257b1d006591ee/$FILE/ST01920SE.pdf) does not affect 
the accomplishment of the manufacturer's service instructions. 
Therefore, the installation of STC ST01920SE does not affect the 
ability to accomplish the actions required by this AD. We have not 
changed this SNPRM in this regard.

Additional Change Made to This Proposed AD

    We incorrectly referred to the original issue date of Boeing 
Service Bulletin 767-21-0235 as July 29, 2011, throughout the NPRM. We 
have specified the correct date of the original issue of Boeing Service 
Bulletin 767-21-0235 as October 8, 2009, in paragraphs (j) and (k) of 
this proposed AD.

Related Service Information Under 1 CFR Part 51

    We reviewed the following service information.
     Boeing Alert Service Bulletin 767-21A0245, Revision 2, 
dated September 27, 2013. The service information describes procedures 
for changing the 3-way valve control logic and MCADS, and installing an 
FDARS.
     Boeing Alert Service Bulletin 767-21A0247, Revision 1, 
dated April 9, 2013. The service information describes procedures for 
changing the 3-way valve control logic and MCADS and installing an 
FDARS.
     Boeing Alert Service Bulletin 767-21A0253, dated October 
12, 2012. The service information describes procedures for replacing 
the existing duct, installing an FDARS, changing the 3-way valve 
control logic, and installing a new altitude switch and pitot tube.
     Boeing Alert Service Bulletin 767-21A0254, dated June 7, 
2013. The service information describes procedures for replacing the 
existing duct with a new duct; installing an FDARS; and activating the 
3-way valve control logic.
     Boeing Service Bulletin 767-21-0235, dated October 8, 
2009; and Boeing Service Bulletin 767-21-0235, Revision 1, dated July 
29, 2011. The service information describes procedures for the relay 
installation and related wiring changes.
     Boeing Service Bulletin 767-21-0244, Revision 1, dated 
March 8, 2010. The service information describes procedures for 
changing the 3-way valve control logic and installing a cooling system 
for the flight deck display equipment.
     Boeing Service Bulletin 767-31-0073, dated October 12, 
1995. The service information describes procedures for installation of 
an in-flight EICAS for the maintenance data selection system.
    This service information is reasonably available because the 
interested parties have access to it through their normal course of 
business or by the means identified in the ADDRESSES section.

FAA's Determination

    We are proposing this SNPRM 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 design. 
Certain changes described above expand the scope of the NPRM. As a 
result, we have determined that it is necessary to reopen the

[[Page 33615]]

comment period to provide additional opportunity for the public to 
comment on this SNPRM.

Requirements of This Proposed AD

    This proposed AD would require, depending on airplane model and 
configuration, the following actions:
     Replacing the existing duct with a new duct.
     Installing an FDARS.
     Changing or activating the 3-way valve control logic.
     Installing a new altitude switch and pitot tube.
     Changing the 3-way valve control logic and MCADS.
     Installing a flight deck display equipment cooling system.
     Doing a relay installation and related wiring changes.
     Installing an in-flight EICAS for the maintenance data 
selection system.
    Refer to the service information described previously for details 
on the procedures and compliance times.

Costs of Compliance

    We estimate that this proposed AD affects 52 airplanes of U.S. 
registry.
    We estimate the following costs to comply with this proposed AD:

                                                                     Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
                Action                          Labor cost          Parts cost        Cost per product                  Cost on U.S. operators
--------------------------------------------------------------------------------------------------------------------------------------------------------
3-way valve control logic and MCADS     46 work-hours x $85 per        $21,865  $25,775.....................  $1,185,650 (46 airplanes).
 change, and installation of an FDARS    hour = $3,910.
 (Boeing Alert Service Bulletin 767-
 21A0247, Revision 1, dated April 9,
 2013; Groups 2 and 3 airplanes).
3-way valve control logic and MCADS     64 work-hours x $85 per         18,315  23,755......................  47,510 (2 airplanes).
 change, and installation of an FDARS    hour = $5,440.
 (Boeing Alert Service Bulletin 767-
 21A0245, Revision 2, dated September
 27, 2013).
Replacement of the existing duct,       76 work-hours x $85 per         55,663  62,123......................  248,492 (4 airplanes).
 installation of an FDARS, 3-way valve   hour = $6,460.
 control logic change, and
 installation of a new altitude switch
 and pitot tube (Boeing Alert Service
 Bulletin 767-21A0253, dated October
 12, 2012).
3-way valve control logic change and    33 work-hours x $85 per              0  2,805.......................  8,415 (3 airplanes).
 installation of a flight deck display   hour = $2,805.
 equipment cooling system (Boeing
 Service Bulletin 767-21-0244,
 Revision 1, dated March 8, 2010).
Relay installation and related wiring   Up to 10 work-hours x $85   Up to $955  Up to $1,805................  Up to $88,445 (49 airplanes).
 changes (Boeing Service Bulletin 767-   per hour = up to $850.
 21-0235, dated October 8, 2009; or
 Boeing Service Bulletin 767-21-0235,
 Revision 1, dated July 29, 2011).
Installing an in-flight EICAS for the   Up to 13 work-hours......        Up to  Up to $4,640................  Up to $13,920 (3 airplanes).
 maintenance data selection system                                      $3,535
 (Boeing Service Bulletin 767-31-0073,
 dated October 12, 1995).
Replacement of the existing duct,       51 work-hours x $85 per         16,338  20,673......................  (0 airplanes).
 installation of an FDARS and            hour = $4,335.
 activation of 3-way valve control
 logic (Boeing Alert Service Bulletin
 767-21A0254, dated June 7, 2013).
--------------------------------------------------------------------------------------------------------------------------------------------------------

    According to the manufacturer, some of the costs of this proposed 
AD may be covered under warranty, thereby reducing the cost impact on 
affected individuals. We do not control warranty coverage for affected 
individuals. As a result, we have included all costs in our cost 
estimate.

Authority for This Rulemaking

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

Regulatory Findings

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

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:

[[Page 33616]]

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-2013-0797; Directorate Identifier 
2013-NM-007-AD.

(a) Comments Due Date

    We must receive comments by July 11, 2016.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to The Boeing Company Model 767-300 and 767-300F 
series airplanes, certificated in any category; as identified in the 
service information specified in paragraphs (c)(1) through (c)(5) of 
this AD. This AD does not apply to The Boeing Company Model 767-300 
(passenger) series airplanes.
    (1) Boeing Service Bulletin 767-21-0244, Revision 1, dated March 
8, 2010.
    (2) Boeing Alert Service Bulletin 767-21A0245, Revision 2, dated 
September 27, 2013.
    (3) Boeing Alert Service Bulletin 767-21A0247, Revision 1, dated 
April 9, 2013.
    (4) Boeing Alert Service Bulletin 767-21A0253, dated October 12, 
2012.
    (5) Boeing Alert Service Bulletin 767-21A0254, dated June 7, 
2013.

(d) Subject

    Air Transport Association (ATA) of America Code 21, Air 
Conditioning.

(e) Unsafe Condition

    This AD was prompted by reports of malfunctions in the flight 
deck display units resulting in blanking, blurring, or loss of color 
on the display. We are issuing this AD to prevent malfunctions of 
the flight deck display units, which could affect the ability of the 
flightcrew to read the displays for airplane attitude, altitude, or 
airspeed, and consequently reduce the ability of the flightcrew to 
maintain control of the airplane.

(f) Compliance

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

(g) Installation of Flight Deck Air Relief System (FDARS), 3-Way Valve 
Control Logic Change or Activation, and Additional Actions

    (1) For Model 767-300F series airplanes, as identified in Boeing 
Alert Service Bulletin 767-21A0253, dated October 12, 2012: Within 
72 months after the effective date of this AD, in the main equipment 
center and the area under the left and right sides of the flight 
deck floor, replace the existing duct with a new duct; install an 
FDARS (including the installation of mounting brackets, ducts, 
orifice, outlet valve, and screen); change the 3-way valve control 
logic (including modification of the associated wiring and related 
actions); and install a new altitude switch and pitot tube; in 
accordance with the Accomplishment Instructions of Boeing Alert 
Service Bulletin 767-21A0253, dated October 12, 2012.
    (2) For Model 767-300F series airplanes, as identified in Boeing 
Alert Service Bulletin 767-21A0254, dated June 7, 2013: Within 72 
months after the effective date of this AD, in the main equipment 
center and the area under the left and right sides of the flight 
deck floor, replace the existing duct with a new duct; install an 
FDARS (including the installation of mounting brackets, ducts, 
orifice, outlet valve, and screen); and activate the 3-way valve 
control logic (including modification of the associated wiring and 
related actions); in accordance with the Accomplishment Instructions 
of Boeing Alert Service Bulletin 767-21A0254, dated June 7, 2013.

(h) Installation of FDARS and a 3-Way Valve Control Logic and Main 
Cargo Air Distribution System (MCADS) Change

    (1) For Model 767-300F series airplanes, as identified in Boeing 
Alert Service Bulletin 767-21A0245, Revision 2, dated September 27, 
2013: Within 72 months after the effective date of this AD, in the 
main equipment center and the area under the left and right sides of 
the flight deck floor, change the 3-way valve control logic and 
MCADS, and install an FDARS, in accordance with the Accomplishment 
Instruction of Boeing Alert Service Bulletin 767-21A0245, Revision 
2, dated September 27, 2013, except as provided by paragraph (j) of 
this AD.
    (2) For Model 767-300F series airplanes, as identified in Boeing 
Alert Service Bulletin 767-21A0247, Revision 1, dated April 9, 2013: 
Within 72 months after the effective date of this AD, change the 3-
way valve control logic and MCADS and install an FDARS, in 
accordance with the Accomplishment Instructions of Boeing Alert 
Service Bulletin 767-21A0247, Revision 1, dated April 9, 2013.

(i) Installation of a Flight Deck Display Equipment Cooling System and 
a 3-Way Valve Control Logic Change

    For Model 767-300 series airplanes that have been converted by 
Boeing to Model 767-300BCF (Boeing Converted Freighter) airplanes, 
as identified in Boeing Service Bulletin 767-21-0244, Revision 1, 
dated March 8, 2010: Within 72 months after the effective date of 
this AD, change the 3-way valve control logic and install a flight 
deck display equipment cooling system, in accordance with the 
Accomplishment Instructions of Boeing Service Bulletin 767-21-0244, 
Revision 1, dated March 8, 2010.

(j) Exception to Paragraph (h)(1) of This AD

    For Model 767-300F series airplanes, as identified in Boeing 
Alert Service Bulletin 767-21A0245, Revision 2, dated September 27, 
2013: If the 3-way valve control logic change specified in Boeing 
Service Bulletin 767-21-0235, dated October 8, 2009; or Revision 1, 
dated July 29, 2011; is done prior to or concurrent with the actions 
required by paragraph (h)(1) of this AD, operators need to do only 
the functional test, FDARS installation, and flex duct change, in 
accordance with the Accomplishment Instructions of Boeing Alert 
Service Bulletin 767-21A0245, Revision 2, dated September 27, 2013. 
Operators do not need to do the other actions specified in the 
Accomplishment Instructions of Boeing Alert Service Bulletin 767-
21A0245, Revision 2, dated September 27, 2013, if the actions in the 
Accomplishment Instructions of Boeing Service Bulletin 767-21-0235, 
dated October 8, 2009; or Revision 1, dated July 29, 2011; are done 
concurrently. If the functional test fails, before further flight, 
do corrective actions that are approved in accordance with the 
procedures specified in paragraph (l) of this AD.

(k) Concurrent Requirements

    (1) For Groups 1 and 3 airplanes, as identified in Boeing Alert 
Service Bulletin 767-21A0245, Revision 2, dated September 27, 2013: 
Prior to or concurrently with accomplishing the requirements of 
paragraph (h)(1) of this AD, do the relay installation and related 
wiring changes specified in, and in accordance with, the 
Accomplishment Instructions of Boeing Service Bulletin 767-21-0235, 
dated October 8, 2009; or Boeing Service Bulletin 767-21-0235, 
Revision 1, dated July 29, 2011.
    (2) For Group 1 airplanes, as identified in Boeing Alert Service 
Bulletin 767-21A0247, Revision 1, dated April 9, 2013: Prior to or 
concurrently with accomplishing the requirements of paragraph (h)(2) 
of this AD, do the relay installation and related wiring changes 
specified in, and in accordance with, the Accomplishment 
Instructions of Boeing Service Bulletin 767-21-0235, dated October 
8, 2009; or Boeing Service Bulletin 767-21-0235, Revision 1, dated 
July 29, 2011.
    (3) For Model 767-300 series airplanes that have been converted 
by Boeing to Model 767-300BCF airplanes, as identified in Boeing 
Service Bulletin 767-21-0244, Revision 1, dated March 8, 2010: Prior 
to or concurrently with accomplishing the requirements of paragraph 
(i) of this AD, do the installation of an in-flight engine 
indication and crew alerting system (EICAS) for the maintenance data 
selection system specified in, and in accordance with, the 
Accomplishment Instructions of Boeing Service Bulletin 767-31-0073, 
dated October 12, 1995.

(l) 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 (m)(1) of this AD. 
Information may be emailed to: 9-ANM-Seattle-ACO-AMOC-Requests@faa.gov.

[[Page 33617]]

    (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, 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.

(m) Related Information

    (1) For more information about this AD, contact Francis Smith, 
Aerospace Engineer, Cabin Safety and Environmental Controls Branch, 
ANM-150S, FAA, Seattle ACO, 1601 Lind Avenue SW., Renton, WA 98057-
3356; phone: 425-917-6596; fax: 425-917-6590; email: 
francis.smith@faa.gov.
    (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 review copies of the referenced 
service information at the FAA, Transport Airplane Directorate, 1601 
Lind Avenue SW., Renton, WA. For information on the availability of 
this material at the FAA, call 425-227-1221.

    Issued in Renton, Washington, on May 17, 2016.
Dionne Palermo,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-12353 Filed 5-26-16; 8:45 am]
 BILLING CODE 4910-13-P