This section of the FEDERAL REGISTER

contains regulatory documents having general

applicability and legal effect, most of which

are keyed to and codified in the Code of

Federal Regulations, which is published under

50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by

the Superintendent of Documents. Prices of

new books are listed in the first FEDERAL

REGISTER issue of each week.

Rules and Regulations Federal Register

44829 

Vol. 80, No. 144 

Tuesday, July 28, 2015 

DEPARTMENT OF COMMERCE 

Office of the Secretary 

2 CFR Part 1327 

15 CFR Parts 14 and 24 

[Docket No.: 150320288–5547–02] 

RIN 0605–AA34 

Federal Awarding Agency Regulatory 

Implementation of Office of 

Management and Budget’s Uniform 

Administrative Requirements, Cost 

Principles, and Audit Requirements for 

Federal Awards 

AGENCY: Office of the Secretary, 

Department of Commerce. 

ACTION: Final rule. 

SUMMARY: The Department of Commerce 

publishes this rule to adopt as a final 

rule, without change, a joint interim 

final rule published with the Office of 

Management and Budget (OMB) for all 

Federal award-making agencies that 

implemented guidance on Uniform 

Administrative Requirements, Cost 

Principles, and Audit Requirements for 

Federal Awards (Uniform Guidance). 

This rule is necessary to incorporate 

into regulation and thus bring into effect 

the Uniform Guidance as required by 

OMB for the Department of Commerce. 

DATES: This rule is effective August 27, 

2015. 

FOR FURTHER INFORMATION CONTACT: John 

Geisen at 202–482–0602 or jgeisen@

doc.gov. 

SUPPLEMENTARY INFORMATION: On 

December 19, 2014, OMB issued an 

interim final rule that implemented for 

all Federal award-making agencies the 

final guidance on Uniform 

Administrative Requirements, Cost 

Principles, and Audit Requirements for 

Federal Awards (Uniform Guidance). In 

that interim final rule, Federal awarding 

agencies, including the Department of 

Commerce, joined together to 

implement the Uniform Guidance in 

their respective chapters of title 2 of the 

CFR, and, where approved by OMB, 

implemented any exceptions to the 

Uniform Guidance by including the 

relevant language in their regulations. 

Where applicable, agencies provided 

additional language beyond that 

included in 2 CFR 200, consistent with 

their existing policy, to provide more 

detail with respect to how they intend 

to implement the policy, where 

appropriate. 

In addition, the interim final rule 

made technical corrections to the 

Uniform Guidance, where needed, to 

ensure that particular language in the 

final guidance matched with the 

Council on Financial Assistance 

Reform’s intent and to avoid any 

erroneous implementation of the 

guidance. The interim final rule went 

into effect on December 26, 2014. The 

public comment period for the interim 

final rule closed on February 17, 2015. 

The Department of Commerce 

publishes this final rule to adopt the 

provisions of the interim final rule. The 

Department did not request any 

exceptions to the Uniform Guidance and 

did not provide any language beyond 

what was included in 2 CFR 200. The 

Department did not receive any public 

comments on its regulations. 

Accordingly, the Department makes no 

changes to the interim final rule. 

Classification 

Paperwork Reduction Act 

This rule contains no collections of 

information subject to the requirements 

of the Paperwork Reduction Act (44 

U.S.C. Ch. 3506). Notwithstanding any 

other provision of law, no person is 

required to respond to, nor shall any 

person be subject to a penalty for failure 

to comply with a collection of 

information subject to the Paperwork 

Reduction Act unless that collection 

displays a currently valid OMB Control 

Number. 

Regulatory Flexibility Act 

Because notice and opportunity for 

comment are not required pursuant to 5 

U.S.C. 553 or any other law, the 

analytical requirements of the 

Regulatory Flexibility Act (5 U.S.C. 601 

et seq.) are inapplicable. Therefore, a 

regulatory flexibility analysis is not 

required and has not been prepared. 

Executive Order 12866 

Pursuant to Executive Order 12866, 

OMB has determined this final rule to 

be not significant. 

Barry Berkowitz, 

Director of Acquisition Management, U.S. 

Department of Commerce. 

Accordingly, the interim rule 

amending 2 CFR part 1327, and 15 CFR 

parts 14 and 24, which was published 

at 79 FR 75867 on December 19, 2014, 

is adopted as a final rule without 

change. 

[FR Doc. 2015–18196 Filed 7–27–15; 8:45 am] 

BILLING CODE 3510–17–M 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2015–2463; Directorate 

Identifier 2015–NM–086–AD; Amendment 

39–18216; AD 2015–15–07] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule; request for 

comments. 

SUMMARY: We are superseding 

Airworthiness Directive (AD) 2015–10– 

01 for certain Bombardier, Inc. Model 

DHC–8–400 series airplanes. AD 2015– 

10–01 required inspection for correct 

assembly of the main landing gear 

(MLG) alternate extension system 

reservoir lid, and corrective action if 

necessary. This new AD revises the 

applicability. This AD was prompted by 

the discovery of two errors in the 

applicability of AD 2015–10–01. We are 

issuing this AD to, in the event of a 

failure of the primary MLG extension 

system, prevent failure of the alternate 

MLG extension system to fully extend 

the MLG into a down-and-locked 

position, which could result in collapse 

of both left-hand and right-hand MLG 

sides during touchdown. 

DATES: This AD becomes effective 

August 12, 2015. 

The Director of the Federal Register 

approved the incorporation by reference 


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44830 Federal Register / Vol. 80, No. 144 / Tuesday, July 28, 2015 / Rules and Regulations 

of certain publications listed in this AD 

as of July 14, 2015 (80 FR 32449, June 

9, 2015). 

We must receive comments on this 

AD by September 11, 2015. 

ADDRESSES: You may send comments 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, between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For Bombardier service information 

identified in this AD, contact 

Bombardier, Inc., Q-Series Technical 

Help Desk, 123 Garratt Boulevard, 

Toronto, Ontario M3K 1Y5, Canada; 

telephone 416–375–4000; fax 416–375– 

4539; email thd.qseries@

aero.bombardier.com; Internet http://

www.bombardier.com. For Parker 

service information identified in this 

AD, contact Parker Aerospace, 14300 

Alton Parkway, Irvine, CA 92618; 

telephone: 949–833–3000; Internet: 

http://www.parker.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– 

2463. 

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– 

2463; or in person at the Docket 

Operations office 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 street address for 

the Docket Operations office (telephone 

800–647–5527) is in the ADDRESSES

section. Comments will be available in 

the AD docket shortly after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Fabio Buttitta, Aerospace Engineer, 

Airframe and Mechanical Systems 

Branch, ANE–171, FAA, New York 

Aircraft Certification Office (ACO), 1600 

Stewart Avenue, Suite 410, Westbury, 

NY 11590; telephone 516–228–7303; fax 

516–794–5531. 

SUPPLEMENTARY INFORMATION: 

Discussion 

On May 1, 2015, we issued AD 2015– 

10–01, Amendment 39–18156 (80 FR 

32449, June 9, 2015). AD 2015–10–01 

applied to certain Bombardier, Inc. 

Model DHC–8–400 series airplanes. AD 

2015–10–01 was prompted by reports of 

hydraulic fluid loss from the reservoir of 

the MLG alternate extension system. AD 

2015–10–01 required inspection for 

correct assembly of the MLG alternate 

extension system reservoir lid, and 

corrective action if necessary. We issued 

AD 2015–10–01 to, in the event of a 

failure of the primary MLG extension 

system, prevent failure of the alternate 

MLG extension system to fully extend 

the MLG into a down-and-locked 

position, which could result in collapse 

of both left-hand and right-hand MLG 

sides during touchdown. 

AD 2015–10–01, Amendment 39– 

18156 (80 FR 32449, June 9, 2015), 

corresponds to Mandatory Continuing 

Airworthiness Information (MCAI) 

Canadian Airworthiness Directive CF– 

2014–15, dated June 6, 2014. You may 

examine the MCAI on the Internet at 

http://www.regulations.gov by searching 

for and locating Docket No. FAA–2015– 

2463. 

Since we issued AD 2015–10–01, 

Amendment 39–18156 (80 FR 32449, 

June 9, 2015), we have discovered two 

inadvertent errors in the identification 

of the affected airplane models in the 

applicability of AD 2015–10–01. 

Paragraph (c) of AD 2015–10–01 omitted 

Bombardier Model DHC–8–400 

airplanes and erroneously referred to a 

model (DHC–8–403) that is not 

identified on the U.S. type certificate. 

However, the serial numbers identified 

in paragraph (c) of AD 2015–10–01 were 

correct. We have also revised the 

estimated number of U.S.-registered 

airplanes affected by this AD. The 

number of airplanes is less than we 

originally estimated. 

FAA’s Determination and Requirements 

of This AD 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to our 

bilateral agreement with the State of 

Design Authority, we have been notified 

of the unsafe condition described in the 

MCAI and service information 

referenced above. We are issuing this 

AD because we evaluated all pertinent 

information and determined the unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

FAA’s Determination of the Effective 

Date 

We are superseding AD 2015–10–01, 

Amendment 39–18156 (80 FR 32449, 

June 9, 2015), to correct two errors in 

the applicability in paragraph (c) of AD 

2015–10–01, which inadvertently 

omitted a certain airplane model 

affected by the unsafe condition, and 

included a model that is not identified 

on the U.S. type certificate. We have 

made no other changes to the 

requirements published in AD 2015–10– 

01. Also, there are currently no 

Bombardier Inc. Model DHC–8–400 

airplanes (the omitted airplane model) 

on the U.S. Register. Therefore, we 

determined that notice and opportunity 

for public comment before issuing this 

AD are unnecessary. 

Comments Invited 

This AD is a final rule that involves 

requirements affecting flight safety, and 

we did not precede it by notice and 

opportunity for public comment. We 

invite you to send any written relevant 

data, views, or arguments about this AD. 

Send your comments to an address 

listed under the ADDRESSES section. 

Include ‘‘Docket No. FAA–2015–2463; 

Directorate Identifier 2015–NM–086– 

AD’’ at the beginning of your comments. 

We specifically invite comments on the 

overall regulatory, economic, 

environmental, and energy aspects of 

this AD. We will consider all comments 

received by the closing date and may 

amend this 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 AD. 

Related Service Information Under 1 

CFR Part 51 

Bombardier has issued Service 

Bulletin 84–29–34, dated May 9, 2013, 

with the attached Parker Service 

Bulletin 82910012–29–431, dated 

October 22, 2012. The service 

information describes procedures to 

inspect the lid assembly of the MLG 

alternate extension system reservoir for 

correct assembly and corrective actions. 

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 of 

this AD. 


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Federal Register / Vol. 80, No. 144 / Tuesday, July 28, 2015 / Rules and Regulations 44831 

Costs of Compliance 

We estimate that this AD affects 78 

airplanes of U.S. registry. 

The actions required by AD 2015–10– 

01, Amendment 39–18156 (80 FR 

32449, June 9, 2015), and retained in 

this AD take about 4 work-hours per 

product, at an average labor rate of $85 

per work-hour. Based on these figures, 

the estimated cost of the actions that 

were required by AD 2015–10–01 is 

$340 per product. 

In addition, we estimate that any 

necessary follow-on actions will take 

about 2 work-hours and require parts 

costing $0, for a cost of $170 per 

product. We have no way of 

determining the number of aircraft that 

might need this action. 

The new requirements of this AD add 

no additional economic burden. 

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 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 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. 

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 

removing airworthiness directive (AD) 

2015–10–01, Amendment 39–18156 (80 

FR 32449, June 9, 2015), and adding the 

following new AD: 

2015–15–07 Bombardier, Inc.: Amendment 

39–18216. Docket No. FAA–2015–2463; 

Directorate Identifier 2015–NM–086–AD. 

(a) Effective Date 

This AD becomes effective August 12, 

2015. 

(b) Affected ADs 

This AD replaces AD 2015–10–01, 

Amendment 39–18156 (80 FR 32449, June 9, 

2015). 

(c) Applicability 

This AD applies to Bombardier, Inc. Model 

DHC–8–400, –401, and –402 airplanes, 

certificated in any category, serial numbers 

4001 through 4424 inclusive. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 29, Hydraulic Power. 

(e) Reason 

This AD was prompted by reports of 

hydraulic fluid loss from the reservoir of the 

main landing gear (MLG) alternate extension 

system. We are issuing this AD to, in the 

event of a failure of the primary MLG 

extension system, prevent failure of the 

alternate MLG extension system to fully 

extend the MLG into a down-and-locked 

position, which could result in collapse of 

both left-hand and right-hand MLG sides 

during touchdown. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Retained Inspection and Corrective 

Action, With No Changes 

This paragraph restates the requirements of 

AD 2015–10–01, Amendment 39–18156 (80 

FR 32449, June 9, 2015), with no changes. 

Within 2,000 flight hours or 12 months after 

July 14, 2015 (the effective date of AD 2015– 

10–01), whichever occurs first: Do a general 

visual inspection of the MLG alternate 

extension system reservoir lid for correct 

assembly, and do all applicable corrective 

actions, in accordance with the 

Accomplishment Instructions of Bombardier 

Service Bulletin 84–29–34, dated May 9, 

2013, and with the attached Parker Service 

Bulletin 82910012–29–431, dated October 22, 

2012, as referenced in Bombardier Service 

Bulletin 84–29–34, dated May 9, 2013. Do all 

applicable corrective actions within 2,000 

flight hours or 12 months after July 14, 2015, 

whichever occurs first. 

(h) Retained Credit for Previous Actions, 

With No Changes 

This paragraph restates the provisions of 

paragraph (h) of AD 2015–10–01, 

Amendment 39–18156 (80 FR 32449, June 9, 

2015), with no changes. This paragraph 

provides credit for actions required by 

paragraph (g) of this AD, if those actions were 

performed before July 14, 2015 (the effective 

date of AD 2015–10–01), using Bombardier 

All Operator Message 543, dated October 17, 

2012, which is not incorporated by reference 

in this AD. 

(i) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York Aircraft 

Certification Office (ACO), ANE–170, 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 ACO, send it to ATTN: 

Program Manager, Continuing Operational 

Safety, FAA, New York ACO, 1600 Stewart 

Avenue, Suite 410, Westbury, NY 11590; 

telephone 516–228–7300; fax 516–794–5531. 

(i) 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. 

(ii) AMOCs approved previously for AD 

2015–10–01, Amendment 39–18156 (80 FR 

32449, June 9, 2015), are approved as AMOCs 

for the corresponding provisions of this AD. 

(2) Contacting the Manufacturer: As of the 

effective date of this AD, 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, New York ACO, ANE–170, 

FAA; or Transport Canada Civil Aviation 

(TCCA); or Bombardier, Inc.’s TCCA Design 

Approval Organization (DAO). If approved by 

the DAO, the approval must include the 

DAO-authorized signature. 

(j) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) Canadian 

Airworthiness Directive CF–2014–15, dated 

June 6, 2014, for related information. This 

MCAI may be found in the AD docket on the 


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44832 Federal Register / Vol. 80, No. 144 / Tuesday, July 28, 2015 / Rules and Regulations 

Internet at http://www.regulations.gov by 

searching for and locating Docket No. FAA– 

2015–2463. 

(2) Service information identified in this 

AD that is not incorporated by reference is 

available at the addresses specified in 

paragraphs (k)(4) and (k)(6) of this AD. 

(k) 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. 

(3) The following service information was 

approved for IBR on July 14, 2015 (80 FR 

32449, June 9, 2015). 

(i) Bombardier Service Bulletin 84–29–34, 

dated May 9, 2013. 

(ii) Parker Service Bulletin 82910012–29– 

431, dated October 22, 2012. 

(4) For Bombardier service information 

identified in this AD, contact Bombardier, 

Inc., Q-Series Technical Help Desk, 123 

Garratt Boulevard, Toronto, Ontario M3K 

1Y5, Canada; telephone 416–375–4000; fax 

416–375–4539; email thd.qseries@

aero.bombardier.com; Internet http://

www.bombardier.com. 

(5) For Parker service information 

identified in this AD, contact Parker 

Aerospace, 14300 Alton Parkway, Irvine, CA 

92618; phone: 949–833–3000; Internet: 

http://www.parker.com. 

(6) 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. 

(7) 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 July 13, 

2015. 

Jeffrey E. Duven, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2015–17975 Filed 7–27–15; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2014–0778; Directorate 

Identifier 2014–NM–095–AD; Amendment 

39–18220; AD 2015–15–11] 

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 747–100B, 

747–100B SUD, 747–200B, 747–200C, 

747–200F, 747–300, 747–400, 747– 

400D, 747–400F, 747SR, and 747SP 

series airplanes. This AD was prompted 

by reports of skin cracks and subsequent 

findings of hidden corrosion found on 

the mating surfaces between certain skin 

and stringers at circumferential skin 

splices. This AD requires general visual 

inspections of the fuselage skin at 

certain lower circumferential splices for 

the presence of existing external 

doublers, repetitive inspections of the 

fuselage skin, and related investigative 

and corrective actions if necessary. We 

are issuing this AD to detect and correct 

hidden corrosion due to compromised 

fillet seals, which can result in skin 

cracking and consequent loss of 

capability to support limit loads. 

DATES: This AD is effective September 1, 

2015. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of September 1, 2015. 

ADDRESSES: 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. It is also available on the Internet 

at http://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2014–0778. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2014– 

0778; 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: Bill 

Ashforth, Aerospace Engineer, Airframe 

Branch, ANM–120S, FAA, Seattle 

Aircraft Certification Office (ACO), 1601 

Lind Avenue SW., Renton, WA 98057– 

3356; phone: 425–917–6432; fax: 425– 

917–6590; email: bill.ashforth@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 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 NPRM 

published in the Federal Register on 

November 28, 2014 (79 FR 70799). The 

NPRM was prompted by reports of skin 

cracks and subsequent findings of 

hidden corrosion found on the mating 

surfaces between certain skin and 

stringers at circumferential skin splices. 

The NPRM proposed to require general 

visual inspections of the fuselage skin at 

certain lower circumferential splices for 

the presence of existing external 

doublers, repetitive inspections of the 

fuselage skin, and related investigative 

and corrective actions if necessary. We 

are issuing this AD to detect and correct 

hidden corrosion due to compromised 

fillet seals, which can result in skin 

cracking and consequent loss of 

capability to support limit loads. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the NPRM (79 FR 70799, 

November 28, 2014) and the FAA’s 

response to each comment. 

Concurrence With NPRM (79 FR 70799, 

November 28, 2014) 

United Airlines stated that it concurs 

with the proposed requirements 

specified in the NPRM (79 FR 70799, 

November 28, 2014). 


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