Federal Register / Vol. 81, No. 45 / Tuesday, March 8, 2016 / Proposed Rules 12039 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2016–4219; Directorate 

Identifier 2015–NM–169–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 certain 

The Boeing Company Model 777 

airplanes. This proposed AD was 

prompted by reports of latently failed 

fuel shutoff valves discovered during 

fuel filter replacement. This proposed 

AD would require doing an inspection 

to identify the part number of the engine 

fuel spar motor-operated valve (MOV) 

actuators; replacing certain MOV 

actuators with new MOV actuators on 

both airline information management 

system (AIMS) V1 and V2 equipped 

airplanes, or installing a newer software 

version on AIMS V2 equipped 

airplanes. We are proposing this AD to 

prevent latent failure of the fuel shutoff 

valve to the engine. This valve failure, 

if not prevented, could result in the 

inability to terminate fuel flow to the 

engine, which in case of an engine fire, 

could lead to wing failure. 

DATES: We must receive comments on 

this proposed AD by April 22, 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: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this NPRM, 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 2016– 

4219. 

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–2016– 

4219; 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: 

David Lee, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue SW., Renton, WA 

98057–3356; phone: 425–917–6497; fax: 

425–917–6590; email: david.a.lee@

faa.gov. 

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– 

2016–4219; Directorate Identifier 2015– 

NM–169–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 have received reports of latently 

failed fuel shutoff valves discovered 

during fuel filter replacement. 

Deficiencies in the valve actuator design 

have resulted in latent failures of the 

fuel shutoff valve to the engine. This 

condition, if not prevented, could result 

in the inability to terminate fuel flow to 

the engine, which in case of an engine 

fire, could lead to wing failure. 

We have previously determined that 

operators should not be required to 

replace the two fuel spar valve actuators 

with new actuators when we previously 

mandated replacement of MOV 

actuators for other valve positions in AD 

2013–05–03, Amendment 39–17375 (78 

FR 17290, March 21, 2013). The 

alternate MOV actuator configurations 

available at that time were discovered to 

be susceptible to latent failures that 

could result in the inability to shut-off 

fuel to the engine. We are proposing this 

AD because a new MOV actuator has 

become available which corrects the 

latent failure of an MOV actuator. 

We have excluded line numbers 1165 

and subsequent from the applicability 

section of this proposed AD as these 

airplanes were manufactured new with 

AIMS–2 Blockpoint Version 17 or 

higher installed, which are not affected 

by the unsafe condition. 

Related Rulemaking 

AD 2013–05–03, Amendment 39– 

17375 (78 FR 17290, March 21, 2013), 

for certain The Boeing Company Model 

777–200, –200LR, –300, and –300ER 

series airplanes, requires replacing MOV 

actuators having part number (P/N) 

MA20A1001–1 with certain new or 

serviceable MOV actuators; and 

measuring the electrical resistance of 

the bond from the adapter plate to the 

airplane structure, and doing corrective 

actions if necessary. 

AD 2015–19–01, Amendment 39– 

18264 (80 FR 55521, September 16, 

2015), for certain The Boeing Company 

Model 777 airplanes, requires revising 

the maintenance or inspection program 

to add Airworthiness Limitation (AWL) 

28–AWL–MOV for an engine fuel 

shutoff valve (fuel spar valve) actuator 

inspection. 

On October 30, 2014, we issued an 

NPRM, Docket No. FAA–2014–0755, 

Directorate Identifier 2014–NM–080–AD 

(79 FR 66343, November 7, 2014), for all 

The Boeing Company Model 737–600, 

–700, –700C, 800, –900, and –900ER 

series airplanes, Model 757 airplanes, 

Model 767 airplanes, and Model 777 

airplanes, which would require 

replacement of any spar-mounted MOV 

actuator having P/N MA20A1001–1 

(S343T003 39) for the fuel tanks or fuel 

feed system with a serviceable, FAAapproved MOV actuator. 

Related Service Information Under 1 

CFR Part 51 

We reviewed Boeing Service Bulletin 

777–28A0034, Revision 3, dated 


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12040 Federal Register / Vol. 81, No. 45 / Tuesday, March 8, 2016 / Proposed Rules 

September 25, 2015. This service 

information describes procedures for, 

among other things, inspection and 

replacement of the main and center fuel 

tank valve actuators. 

We also reviewed Boeing Service 

Bulletin 777–31–0227, Revision 1, dated 

August 12, 2015. This service 

information describes procedures for 

installing the AIMS 2, Blockpoint 

Version 17, software upgrade. 

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 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 design. 

Proposed AD Requirements 

This proposed AD would require an 

inspection to determine the part 

numbers of installed engine fuel spar 

MOV actuators; for certain airplanes, 

replacement of certain MOV actuators 

with new MOV actuators having part 

number (P/N) MA30A1017; and for 

certain other airplanes, replacement of 

certain MOV actuators with new MOV 

actuators having P/N MA30A1017, or 

installation of a certain version of the 

airplane information management 

system (AIMS) software; using the 

Accomplishment Instructions in the 

service information described 

previously. For information on the 

procedures, see this service information 

at http://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2016–4219. 

Costs of Compliance 

We estimate that this proposed AD 

affects 154 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 

Inspection ......................................................................

(154 airplanes) ..............................................................

1 work-hour X $85 per hour = $85 .. $0 $85 $13,090. 

Replacement of two actuators without fuel tank access 

(34 airplanes) ................................................................

5 work-hours X $85 per hour = 

$425.

12,000 12,425 422,450. 

AIMS 2, Blockpoint Version 17, installation ..................

(120 airplanes) ..............................................................

7 work-hours X $85 per hour = 

$595.

0 595 71,400. 

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: 

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): 

The Boeing Company: Docket No. FAA– 

2016–4219; Directorate Identifier 2015– 

NM–169–AD. 

(a) Comments Due Date 

We must receive comments by April 22, 

2016. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all The Boeing 

Company Model 777–200, 777–200LR, 777– 

300, 777–300ER, and 777F series airplanes, 

certificated in any category, excluding line 

number 1165 and subsequent. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 28, Fuel. 

(e) Unsafe Condition 

This AD was prompted by reports of 

latently failed fuel shutoff valves discovered 

during fuel filter replacement. We are issuing 

this AD to prevent latent failure of the fuel 

shutoff valve to the engine. This valve 

failure, if not prevented, could result in the 

inability to terminate fuel flow to the engine, 

which in case of an engine fire, could lead 

to wing failure. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Part Replacement 

(1) For airplanes having Airplane 

Information Management System (AIMS) 1 

installed: Within 24 months after the 


asabaliauskas on DSK3SPTVN1PROD with PROPOSALS
Federal Register / Vol. 81, No. 45 / Tuesday, March 8, 2016 / Proposed Rules 12041 

effective date of this AD, install new engine 

fuel spar motor operated valve (MOV) 

actuators having part number (P/N) 

MA30A1017, in accordance with the 

Accomplishment Instructions of Boeing 

Service Bulletin 777–28A0034, Revision 3, 

dated September 25, 2015. 

(2) For airplanes having AIMS 2, 

Blockpoint Version 16 or earlier installed: 

Within 24 months after the effective date of 

this AD, do the actions in paragraph (g)(2)(i) 

or (g)(2)(ii) of this AD. 

(i) Install new engine fuel spar MOV 

actuators having P/N MA30A1017, in 

accordance with the Accomplishment 

Instructions of Boeing Service Bulletin 777– 

28A0034, Revision 3, dated September 25, 

2015. 

(ii) Install AIMS 2, Blockpoint Version 17 

or later, in accordance with the 

Accomplishment Instructions of Boeing 

Service Bulletin 777–31–0227, Revision 1, 

dated August 12, 2015. 

(h) Credit for Previous Actions 

This paragraph provides credit for actions 

required by paragraph (g)(2)(ii) of this AD, if 

those actions were performed before the 

effective date of this AD using Boeing Special 

Attention Service Bulletin 777–31–0227, 

dated November 7, 2014, which is not 

incorporated by reference in this AD. 

(i) 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 (j)(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, 

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. 

(4) For service information that contains 

steps that are labeled as Required for 

Compliance (RC), the provisions of 

paragraphs (i)(4)(i) and (i)(4)(ii) of this AD 

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 

(j) Related Information 

(1) For more information about this AD, 

contact David Lee, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, Seattle 

Aircraft Certification Office, 1601 Lind 

Avenue SW., Renton, WA 98057–3356; 

phone: 425–917–6497; fax: 425–917–6590; 

email: david.a.lee@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 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. 

Issued in Renton, Washington, on February 

25, 2016. 

Dionne Palermo, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2016–04682 Filed 3–7–16; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2015–0935; Directorate 

Identifier 2014–NM–243–AD] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Supplemental notice of 

proposed rulemaking (SNPRM); 

reopening of comment period. 

SUMMARY: We are revising an earlier 

proposed airworthiness directive (AD) 

for certain The Boeing Company Model 

747–100, 747–100B, 747–100B SUD, 

747–200B, 747–200C, 747–200F, 747– 

300, 747–400, 747–400D, 747–400F, 

747SR, and 747SP series airplanes. The 

notice of proposed rulemaking (NPRM) 

proposed to require replacing the wire 

bundles inside the electrical conduit of 

the forward and aft boost pumps of the 

numbers 1 and 4 main fuel tanks with 

new, improved wire bundles inserted 

into conduit liners. The NPRM was 

prompted by several reports of chafing 

of the wire bundles inside the electrical 

conduit of the forward and aft boost 

pumps of the numbers 1 and 4 main fuel 

tanks due to high vibration. These wire 

bundles can chafe through the wire 

sleeving into the insulation, exposing 

the wire conductors. This action revises 

the NPRM by adding a revision to the 

maintenance or inspection program, as 

applicable, to include critical design 

configuration control limitations 

(CDCCL) for the fuel boost pump wiring. 

We are proposing this SNPRM to 

prevent chafing of the wire bundles and 

subsequent arcing between the wiring 

and the electrical conduit creating an 

ignition source in the fuel tanks, which 

could result in a fire and consequent 

fuel tank explosion. 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 April 22, 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. Boeing Alert Service 

Bulletin 747–28A2306, dated October 2, 

2014, is also available on the Internet at 

http://www.regulations.gov by searching 

for and locating Docket No. FAA–2015– 

0935. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 


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