Federal Register / Vol. 81, No. 131 / Friday, July 8, 2016 / Rules and Regulations 44499 

instructions, and specifies that action as 

‘‘RC’’ (Required for Compliance), this AD 

requires repair before further flight using a 

method approved by the Manager, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA; or the European 

Aviation Safety Agency (EASA); or Airbus’s 

EASA Design Organization Approval (DOA). 

(i) Credit for Previous Actions 

This paragraph provides credit for actions 

required by paragraph (g) of this AD, if those 

actions were performed before the effective 

date of this AD using any of the Airbus 

service information specified in paragraphs 

(i)(1) through (i)(3) of this AD. This service 

information is not incorporated by reference 

in this AD. 

(1) Airbus Service Bulletin A320–53–1268, 

dated January 8, 2013, which is not 

incorporated by reference in this AD. 

(2) Airbus Service Bulletin A320–53–1268, 

Revision 01, dated July 23, 2013, which is 

not incorporated by reference in this AD. 

(3) Airbus Service Bulletin A320–53–1268, 

Revision 02, dated July 15, 2014, which is 

not incorporated by reference in this AD. 

(j) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, ANM–116, Transport Airplane 

Directorate, FAA, has the authority to 

approve AMOCs for this AD, if requested 

using the procedures found in 14 CFR 39.19. 

In accordance with 14 CFR 39.19, send your 

request to your principal inspector or local 

Flight Standards District Office, as 

appropriate. If sending information directly 

to the International Branch, send it to ATTN: 

Sanjay Ralhan, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, 1601 Lind 

Avenue SW., Renton, WA 98057–3356; 

telephone 425–227–1405; fax 425–227–1149. 

Information may be emailed to: 9-ANM-116- 

AMOC-REQUESTS@faa.gov. Before using 

any approved AMOC, notify your appropriate 

principal inspector, or lacking a principal 

inspector, the manager of the local flight 

standards district office/certificate holding 

district office. The AMOC approval letter 

must specifically reference this AD. 

(2) Contacting the Manufacturer: For any 

requirement in this AD to obtain corrective 

actions from a manufacturer, the action must 

be accomplished using a method approved 

by the Manager, International Branch, ANM– 

116, Transport Airplane Directorate, FAA; or 

EASA; or Airbus’s EASA DOA. If approved 

by the DOA, the approval must include the 

DOA-authorized signature. 

(3) Required for Compliance (RC): Except 

as required by paragraph (h) of this AD, if 

any service information contains procedures 

or tests that are identified as RC, those 

procedures and tests must be done to comply 

with this AD; any procedures or tests that are 

not identified as RC are recommended. Those 

procedures and tests that are not identified 

as RC may be deviated from using accepted 

methods in accordance with the operator’s 

maintenance or inspection program without 

obtaining approval of an AMOC, provided 

the procedures and tests identified as RC can 

be done and the airplane can be put back in 

an airworthy condition. Any substitutions or 

changes to procedures or tests identified as 

RC require approval of an AMOC. 

(k) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) EASA AD 

2014–0209, dated September 19, 2014, for 

related information. This MCAI may be 

found in the AD docket on the Internet at 

http://www.regulations.gov by searching for 

and locating Docket No. FAA–2015–2964. 

(2) Service information identified in this 

AD that is not incorporated by reference is 

available at the addresses specified in 

paragraphs (l)(3) and (l)(4) of this AD. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless this AD specifies otherwise. 

(i) Airbus Service Bulletin A320–53–1268, 

Revision 03, dated May 7, 2015. 

(ii) Reserved. 

(3) For service information identified in 

this AD, contact Airbus, Airworthiness 

Office—EIAS, 1 Rond Point Maurice 

Bellonte, 31707 Blagnac Cedex, France; 

telephone +33 5 61 93 36 96; fax +33 5 61 

93 44 51; email account.airworth-eas@

airbus.com; Internet http://www.airbus.com. 

(4) You may view this 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. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, call 

202–741–6030, or go to: http://

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued in Renton, Washington, on June 23, 

2016. 

Dorr M. Anderson, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2016–15909 Filed 7–7–16; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2015–5808; Directorate 

Identifier 2015–NM–111–AD; Amendment 

39–18585; AD 2016–14–04] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

The Boeing Company Model 787–8 

airplanes. This AD was prompted by 

reports of water leakage from the 

potable water system due to improperly 

installed waterline couplings, and water 

leaking into the electronics equipment 

(EE) bays from above the floor in the 

main cabin, resulting in water on the 

equipment in the EE bays. This AD 

requires replacing the potable waterline 

couplings above the forward and aft EE 

bays with new, improved couplings. 

This AD also requires sealing the main 

cabin floor areas above the aft EE bay, 

installing drip shields and foam blocks, 

and rerouting the wire bundles near the 

drip shields above the equipment in the 

aft EE bay. We are issuing this AD to 

prevent a water leak from an improperly 

installed potable water system coupling, 

or main cabin water source, which 

could cause the equipment in the EE 

bays to become wet, resulting in an 

electrical short and potential loss of 

system functions essential for safe flight. 

DATES: This AD is effective August 12, 

2016. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of August 12, 2016. 

ADDRESSES: For service information 

identified in this final rule, contact 

Boeing Commercial Airplanes, 

Attention: Data & Services Management, 

P.O. Box 3707, MC 2H–65, Seattle, WA 

98124–2207; telephone 206–544–5000, 

extension 1; fax 206–766–5680; Internet 

https://www.myboeingfleet.com. You 

may view this referenced service 

information at the FAA, Transport 

Airplane Directorate, 1601 Lind Avenue 

SW., Renton, WA. For information on 

the availability of this material at the 

FAA, call 425–227–1221. It is also 

available on the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2015– 

5808. 


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Examining the AD Docket 

You may examine the AD docket on 

the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2015– 

5808; or in person at the Docket 

Management Facility between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The AD docket 

contains this AD, the regulatory 

evaluation, any comments received, and 

other information. The address for the 

Docket Office (phone: 800–647–5527) is 

Docket Management Facility, U.S. 

Department of Transportation, Docket 

Operations, M–30, West Building 

Ground Floor, Room W12–140, 1200 

New Jersey Avenue SE., Washington, 

DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Susan L. Monroe, Aerospace Engineer, 

Cabin Safety and Environmental 

Systems Branch, ANM–150S, FAA, 

Seattle Aircraft Certification Office 

(ACO), 1601 Lind Avenue SW., Renton, 

WA 98057–3356; phone: 425–917–6457; 

fax: 425–917–6590; email: 

susan.l.monroe@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to certain The Boeing Company 

Model 787–8 airplanes. The NPRM 

published in the Federal Register on 

November 19, 2015 (80 FR 72393), (‘‘the 

NPRM’’). The NPRM was prompted by 

reports of water leakage from the 

potable water system due to improperly 

installed waterline couplings, and water 

leaking into the EE bays from above the 

floor in the main cabin, resulting in 

water on the equipment in the EE bays. 

The NPRM proposed to require 

replacing the potable waterline 

couplings above the forward and aft EE 

bays with new, improved couplings. 

The NPRM also proposed to require 

sealing the main cabin floor areas above 

the aft EE bay, installing drip shields 

and foam blocks, and rerouting the wire 

bundles near the drip shields above the 

equipment in the aft EE bay. We are 

issuing this AD to prevent a water leak 

from an improperly installed potable 

water system coupling, or main cabin 

water source, which could cause the 

equipment in the EE bays to become 

wet, resulting in an electrical short and 

potential loss of system functions 

essential for safe flight. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the NPRM and the FAA’s 

response to each comment. 

Support for the NPRM 

The Airline Pilots Association 

International stated that it concurs with 

the contents of the NPRM. 

United Airlines (UAL) stated that it 

supports the compliance time of 60 

months to accomplish the actions 

proposed by the NPRM. 

Requests To Revise Compliance Times 

Mr. Geoffrey Barrance requested that 

we revise the compliance times 

specified in the NPRM to before further 

flight. Mr. Barrance stated that, in view 

of the effect of common mode faults to 

nullify the safety design of critical 

avionic systems housed in the avionics 

bay, this matter needs to be treated with 

the greatest urgency and that the 

correction of the problem should be 

required with far greater urgency than 

the timescales proposed in the NPRM. 

Mr. Barrance stated an example of the 

automatic landing function of the 

automatic flight control system that 

does not and cannot take into account 

common mode faults such as water 

ingress into multiple line replaceable 

units (LRUs), which are present to 

provide functional redundancy and 

fault tolerance. Mr. Barrance stated that 

no probability can be assessed for 

unwanted behavior resulting from water 

ingress into multiple redundant LRUs. 

UAL requested that we extend the 

proposed compliance time from 24 

months to 30 months for accomplishing 

the actions specified in Boeing Alert 

Service Bulletin B787–81205– 

SB380009–00, Issue 001, dated March 

26, 2015. UAL stated that if 

maintenance requires an unforeseen 

disassembly of the airplane for access or 

to correct a test failure, a 30-month 

period is required to schedule the clamp 

inspection and replacement in a heavy 

check. 

We do not agree to revise the 

compliance times required by this AD. 

In developing appropriate compliance 

times for this AD, we considered not 

only the safety implications, including 

evaluation of the hazards associated 

with water ingress into multiple 

redundant LRUs, but the manufacturer’s 

recommendations, the availability of 

required parts, and the practical aspect 

of accomplishing the required actions 

within an interval of time that 

corresponds to typical scheduled 

maintenance for affected operators. 

After considering all the available 

information, we have determined that 

the compliance times, as proposed, 

represent appropriate intervals of time 

in which the required actions can be 

performed in a timely manner within 

the affected fleet, while still maintaining 

an adequate level of safety. Operators 

are always permitted to accomplish the 

requirements of an AD at a time earlier 

than the specified compliance time. 

Operators wanting additional time to 

comply with the requirements of an AD 

may request adjustments to the 

compliance time under the provisions of 

paragraph (k) of this AD. We will 

consider requests for an adjustment of 

the compliance time if data are 

submitted to substantiate that such an 

adjustment would provide an acceptable 

level of safety. We have not changed 

this AD in this regard. 

Request To Use Alternative Moisture 

Barrier Tape 

UAL requested that we approve the 

use of flame retardant (FR) moisture 

barrier tapes Nitto 11611–MB 

polyurethane tape or BMS8–346 Type II, 

Class 4 tape (3M 8657) as alternates to 

the BMS8–346 Type 1, Class 1 moisture 

barrier tape (Patco D9100) specified in 

Boeing Alert Service Bulletin B787 

81205 SB530029–00, Issue 001, dated 

March 26, 2015. UAL stated that during 

a supplemental type certificate test for 

a Model 737 airplane, burn testing was 

performed on the Patco D9100 tape by 

Zodiac Northwest Aerospace 

Technologies, and it failed the 12- 

second vertical test. UAL stated that, 

therefore, the Patco D9100 tape could 

not be certified to meet the 14 CFR 

25.853 flammability requirements. 

We do not agree with UAL’s request. 

We have contacted Boeing who 

provided evidence that BMS8–346 Type 

1, Class 1 moisture barrier tape (Patco 

D9100) material passed the 12-second 

vertical burn test. UAL did not submit 

specific evidence to substantiate that 

Nitto 11611–MB polyurethane tape or 

BMS8–346 Type II, Class 4 tape (3M 

8657) is compliant and that BMS8–346 

Type 1, Class 1 moisture barrier tape 

(Patco D9100) material is noncompliant. Under the provisions of 

paragraph (k) of this AD, we will 

consider requests for approval of an 

alternative method of compliance 

(AMOC) if sufficient data are submitted 

to substantiate that alternative tapes are 

compliant. We have not changed this 

AD in this regard. 

Requests To Use Revised Service 

Information 

Boeing and UAL requested that we 

revise the NPRM to refer to Boeing Alert 

Service Bulletin B787–81205– 

SB380009–00, Issue 002, dated 

December 9, 2015; Boeing Alert Service 

Bulletin B787–81205–SB530029–00, 

Issue 002, dated January 26, 2016; and 


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Boeing Alert Service Bulletin B787– 

81205–SB530031–00, Issue 002, dated 

March 16, 2016. 

We agree with the commenters’ 

requests to use the most current service 

information. We have revised this AD as 

described below. 

• Boeing Alert Service Bulletin B787– 

81205–SB380009–00, Issue 002, dated 

December 9, 2015, adds notes, revises 

the waiting time in the leak test, and 

corrects typographical errors. We have 

revised paragraphs (c) and (g) of this AD 

to reference this service information. 

• Boeing Alert Service Bulletin B787– 

81205–SB530029–00, Issue 002, dated 

January 26, 2016, extends the 24-month 

compliance time for sealing floor panels 

and seat tracks to 60 months; clarifies 

installation of components, revises tape 

requirements; revises sealant callouts; 

and corrects kit contents. We have 

revised paragraphs (c) and (h)(1) of this 

AD to reference this service information. 

• Boeing Alert Service Bulletin B787– 

81205–SB530031–00, Issue 002, dated 

March 16, 2016, extends the 24-month 

compliance time for installing drip 

shields and foam blocks to 60 months. 

This service information also revises the 

airplane groups into configurations to 

account for airplanes on which the drip 

shield between the floor beams at 

station (STA) 1233 and STA 1257 was 

not installed due to interference with 

wire bundles over the P100 panel. This 

service information also clarifies certain 

instructions, revises certain task hour 

estimates, and removes one airplane 

from the effectivity. This service 

information erroneously specifies 

‘‘Group 6, Configuration 1’’ airplanes 

where it should specify ‘‘Group 7, 

Configuration 1’’ airplanes for Task 29 

in multiple places. We have revised 

paragraphs (c) and (h)(2) of this AD to 

reference Boeing Alert Service Bulletin 

B787–81205–SB530031–00, Issue 002, 

dated March 16, 2016. We have added 

new paragraph (i) to specify an 

exception for Boeing Alert Service 

Bulletin B787–81205–SB530031–00, 

Issue 002, dated March 16, 2016. 

We have also added new paragraph (j) 

of this AD to provide credit for actions 

done prior to the effective date of this 

AD using Boeing Alert Service Bulletin 

B787–81205–SB380009–00, Issue 001, 

dated March 26, 2015; Boeing Alert 

Service Bulletin B787–81205– 

SB530029–00, Issue 001, dated March 

26, 2015; and Boeing Alert Service 

Bulletin B787–81205–SB530031–00, 

Issue 001, dated March 26, 2015; as 

applicable. We have redesignated 

subsequent paragraphs accordingly. 

Request To Review Airplane 

Certification Procedures 

Mr. Geoffrey Barrance requested that 

we conduct an internal review and a 

review with the manufacturer as to why 

the airplane equipment bay design was 

not reviewed and required to protect the 

avionics LRUs from water ingress at the 

time of certification. Mr. Barrance stated 

that this is not a new issue and must be 

a standard check item on design reviews 

and certification signoff. Mr. Barrance 

stated that this is a design and 

certification omission, not primarily a 

problem with the quality of work by the 

people doing the installation of the 

potable waterlines. 

We partially agree with Mr. Barrance’s 

request. We agree that this is a design 

issue that increased the likelihood of 

mis-installation, and not primarily a 

problem with the quality of work by 

personnel installing the potable 

waterlines. We asked the manufacturer 

to conduct a root-cause analysis to 

determine how it permitted design 

issues that created the unsafe condition. 

We are working with the manufacturer 

to determine if their company processes 

must be updated to better identify these 

hazards. The actions required by this 

AD address only the results of that 

analysis that directly relate to the 

identified design issues, and mandate 

changes to correct those issues. 

We disagree that the EE bay design 

was not reviewed and required to 

protect the avionics LRUs from water 

ingress at the time of certification. A 

hazard analysis was completed for these 

systems, as part of the certification 

process, which required known hazards 

to be addressed. This event shows that 

despite the hazard analysis during the 

design and certification phase, further 

improvement is needed to remove the 

unsafe condition. Airplane 

manufacturers are responsible for the 

safety of their products and services, 

and must be in compliance with 

applicable safety requirements. As a 

component of our safety management 

system, we verify that the safety systems 

of the design approval holder meet 

applicable requirements. Working with 

approval holders during the design 

development process, we strive to avoid 

unsafe conditions in the first place. The 

design for this system was evaluated 

during the certification process and 

found at the time to be compliant. We 

also verify that the approval holders’ 

processes, products, and services 

continue to maintain safety of their 

product during the operational phases 

of their service life. In this regard, we 

have evaluated the issues related to this 

system and acted on them. 

We are continuously evaluating our 

certification system and procedures and 

improving them when problems are 

found. In addition, if the FAA is made 

aware of issues occurring on a 

certificated product, we conduct an 

investigation, evaluate the 

manufacturer’s root-cause analysis, and 

make a determination whether or not an 

unsafe condition exists. We then take 

appropriate action to mitigate the unsafe 

condition. We have not changed this AD 

in this regard. 

Conclusion 

We reviewed the relevant data, 

considered the comments received, and 

determined that air safety and the 

public interest require adopting this AD 

with the changes described previously 

and minor editorial changes. We have 

determined that these minor changes: 

• Are consistent with the intent that 

was proposed in the NPRM for 

correcting the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM. 

We also determined that these 

changes will not increase the economic 

burden on any operator or increase the 

scope of this AD. 

Related Service Information Under 1 

CFR Part 51 

We reviewed the following service 

information. 

• Boeing Alert Service Bulletin B787– 

81205–SB380009–00, Issue 002, dated 

December 9, 2015. 

• Boeing Alert Service Bulletin B787– 

81205–SB530029–00, Issue 002, dated 

January 26, 2016. 

• Boeing Alert Service Bulletin B787– 

81205–SB530031–00, Issue 002, dated 

March 16, 2016. 

This service information describes 

procedures for replacing the potable 

waterline couplings above the forward 

and aft EE bays with new, improved 

couplings; sealing the floors, seat tracks, 

and lavatories above the aft EE bay; 

installing drip shields and foam blocks; 

and rerouting the wire bundles adjacent 

to the drip shields above the aft EE bay. 

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. 

Costs of Compliance 

We estimate that this AD affects 17 

airplanes of U.S. registry. 

We estimate the following costs to 

comply with this AD: 


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44502 Federal Register / Vol. 81, No. 131 / Friday, July 8, 2016 / Rules and Regulations 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per product Cost on U.S. 

operators 

Replace waterline couplings .................. Up to 24 work-hours × $85 per hour = 

up to $2,040 

$3,195 Up to $5,235 Up to $88,995 

Seal floors and seat tracks .................... Up to 108 work-hours × $85 per hour = 

up to $9,180 

137 Up to $9,317 Up to $158,389 

Install drip shields and reroute wiring .... Up to 42 work-hours × $85 per hour = 

up to $3,570 

34,594 Up to $38,164 Up to $648,788 

According to the manufacturer, some 

of the costs of this 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 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will not have a 

substantial direct effect on the States, on 

the relationship between the national 

government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Is not a ‘‘significant rule’’ under 

DOT Regulatory Policies and Procedures 

(44 FR 11034, February 26, 1979), 

(3) Will not affect intrastate aviation 

in Alaska, and 

(4) Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

Adoption of the Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 14 CFR part 39 as 

follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

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

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive (AD): 

2016–14–04 The Boeing Company: 

Amendment 39–18585; Docket No. 

FAA–2015–5808; Directorate Identifier 

2015–NM–111–AD. 

(a) Effective Date 

This AD is effective August 12, 2016. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

Model 787–8 series airplanes, certificated in 

any category, as identified in the service 

information specified in paragraphs (c)(1), 

(c)(2), and (c)(3) of this AD. 

(1) Boeing Alert Service Bulletin B787– 

81205–SB380009–00, Issue 002, dated 

December 9, 2015. 

(2) Boeing Alert Service Bulletin B787– 

81205–SB530029–00, Issue 002, dated 

January 26, 2016. 

(3) Boeing Alert Service Bulletin B787– 

81205–SB530031–00, Issue 002, dated March 

16, 2016. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 38, Water/Waste; and Code 53, 

Fuselage. 

(e) Unsafe Condition 

This AD was prompted by reports of water 

leakage from the potable water system due to 

improperly installed waterline couplings, 

and water leaking into the electronics 

equipment (EE) bays from above the floor in 

the main cabin, resulting in water on the 

equipment in the EE bays. We are issuing this 

AD to prevent a water leak from an 

improperly installed potable water system 

coupling, or main cabin water source, which 

could cause the equipment in the EE bays to 

become wet, resulting in an electrical short 

and potential loss of system functions 

essential for safe flight. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Replace Potable Waterline Couplings 

Within 24 months after the effective date 

of this AD: Replace the existing potable 

waterline couplings located above the 

forward and aft EE bays with new, improved 

couplings, in accordance with the 

Accomplishment Instructions of Boeing Alert 

Service Bulletin B787–81205–SB380009–00, 

Issue 002, dated December 9, 2015. Before 

further flight after doing the replacement, do 

a potable water system leak test and repair 

any leaks found before further flight, in 

accordance with the Accomplishment 

Instructions of Boeing Alert Service Bulletin 

B787–81205–SB380009–00, Issue 002, dated 

December 9, 2015. 

(h) Seal Floor Panels and Seat Tracks/Install 

Drip Shields and Reroute Wiring 

Within 60 months after the effective date 

of this AD: Do the actions specified in 

paragraphs (h)(1) and (h)(2) of this AD. 

(1) Apply sealant to the main cabin floor 

areas located above the aft EE bay, in 

accordance with the Accomplishment 

Instructions of Boeing Alert Service Bulletin 

B787–81205–SB530029–00, Issue 002, dated 

January 26, 2016. 

(2) Install drip shields and foam blocks, 

and reroute the wire bundles above the 

equipment in the aft EE bay, in accordance 

with the Accomplishment Instructions of 

Boeing Alert Service Bulletin B787–81205– 

SB530031–00, Issue 002, dated March 16, 

2016, except as specified in paragraph (i) of 

this AD. 

(i) Exception to Certain Service Information 

Where Boeing Alert Service Bulletin B787– 

81205–SB530031–00, Issue 002, dated March 

16, 2016, specifies ‘‘Group 6, Configuration 

1’’ airplanes in reference to Task 29, the 

correct airplane group identification is 

‘‘Group 7, Configuration 1’’ airplanes. 


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(j) Credit for Previous Actions 

This paragraph provides credit for the 

corresponding actions specified in 

paragraphs (g) and (h) of this AD, if those 

actions were performed before the effective 

date of this AD using the applicable service 

information specified in paragraphs (j)(1), 

(j)(2), and (j)(3) of this AD. This service 

information is not incorporated by reference 

in this AD. 

(1) Boeing Alert Service Bulletin B787– 

81205–SB380009–00, Issue 001, dated March 

26, 2015. 

(2) Boeing Alert Service Bulletin B787– 

81205–SB530029–00, Issue 001, dated March 

26, 2015. 

(3) Boeing Alert Service Bulletin B787– 

81205–SB530031–00, Issue 001, dated March 

26, 2015. 

(k) 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 (l)(1) of this AD. Information may 

be emailed to: 9-ANM-Seattle-ACO-AMOCRequests@faa.gov. 

(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, 

alteration, or modification 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. For a repair method 

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. 

(4) For service information that contains 

steps that are labeled as Required for 

Compliance (RC), the provisions of 

paragraphs (k)(4)(i) and (k)(4)(ii) apply. 

(i) The steps labeled as RC, including 

substeps under an RC step and any figures 

identified in an RC step, must be done to 

comply with the AD. An AMOC is required 

for any deviations to RC steps, including 

substeps and identified figures. 

(ii) Steps not labeled as RC may be 

deviated from using accepted methods in 

accordance with the operator’s maintenance 

or inspection program without obtaining 

approval of an AMOC, provided the RC steps, 

including substeps and identified figures, can 

still be done as specified, and the airplane 

can be put back in an airworthy condition. 

(l) Related Information 

(1) For more information about this AD, 

contact Susan L. Monroe, Aerospace 

Engineer, Cabin Safety and Environmental 

Systems Branch, ANM–150S, FAA, Seattle 

Aircraft Certification Office (ACO), 1601 Lind 

Avenue SW., Renton, WA 98057–3356; 

phone: 425–917–6457; fax: 425–917–6590; 

email: susan.l.monroe@faa.gov. 

(2) Service information identified in this 

AD that is not incorporated by reference is 

available at the addresses specified in 

paragraphs (m)(3) and (m)(4) of this AD. 

(m) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) Boeing Alert Service Bulletin B787– 

81205–SB380009–00, Issue 002, dated 

December 9, 2015. 

(ii) Boeing Alert Service Bulletin B787– 

81205–SB530029–00, Issue 002, dated 

January 26, 2016. 

(iii) Boeing Alert Service Bulletin B787– 

81205–SB530031–00, Issue 002, dated March 

16, 2016. 

(3) For Boeing 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. 

(4) You may view this 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. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, call 

202–741–6030, or go to: http://

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued in Renton, Washington, on June 23, 

2016. 

Dorr M. Anderson, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2016–15911 Filed 7–7–16; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2015–6541; Directorate 

Identifier 2015–NM–135–AD; Amendment 

39–18581; AD 2016–13–16] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for all The 

Boeing Company Model 737–600, –700, 

–700C, –800, –900, and –900ER series 

airplanes. This AD was prompted by 

reports of a manufacturing oversight, in 

which a supplier omitted the required 

protective finish on certain bushings 

installed in the rear spar upper chord on 

horizontal stabilizers, which could lead 

to galvanic corrosion and consequent 

cracking of the rear spar upper chord. 

This AD requires an inspection or 

records check to determine if affected 

horizontal stabilizers are installed, 

related investigative actions, and for 

affected horizontal stabilizers, repetitive 

inspections for any crack of the 

horizontal stabilizer rear spar upper 

chord, and corrective action if 

necessary. We are issuing this AD to 

detect and correct cracking of the rear 

spar upper chord, which can result in 

the failure of the upper chord and 

consequent departure of the horizontal 

stabilizer from the airplane, which can 

lead to loss of control of the airplane. 

DATES: This AD is effective August 12, 

2016. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of August 12, 2016. 

ADDRESSES: For service information 

identified in this final rule, contact 

Boeing Commercial Airplanes, 

Attention: Data & Services Management, 

P.O. Box 3707, MC 2H–65, Seattle, WA 

98124–2207; telephone 206–544–5000, 

extension 1; fax 206–766–5680; Internet 

https://www.myboeingfleet.com. You 

may view this referenced service 

information at the FAA, Transport 

Airplane Directorate, 1601 Lind Avenue 

SW., Renton, WA. For information on 

the availability of this material at the 

FAA, call 425–227–1221. It is also 

available on the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2015– 

6541. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2015– 

6541; or in person at the Docket 

Management Facility between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The AD docket 

contains this AD, the regulatory 

evaluation, any comments received, and 

other information. The address for the 

Docket Office (phone: 800–647–5527) is 

Docket Management Facility, U.S. 

Department of Transportation, Docket 


jstallworth on DSK7TPTVN1PROD with RULES