Federal Register / Vol. 78, No. 20 / Wednesday, January 30, 2013 / Proposed Rules 6251 

MPD Document, D622N001–9, Revision 

December 2008; Boeing TR 09–010, dated 

July 2010, to Section 9, ‘‘Airworthiness 

Limitations (AWLs) and Certification 

Maintenance Requirements (CMRs),’’ of 

Boeing 757 MPD Document, D622N001–9; or 

Boeing TR 09–011, dated November 2010, to 

Section 9, ‘‘Airworthiness Limitations 

(AWLs) and Certification Maintenance 

Requirements (CMRs),’’ of the Boeing 757 

MPD Document, D622N001–9; is within 120 

months since the date of issuance of the 

original standard airworthiness certificate or 

the date of issuance of the original export 

certificate of airworthiness, or within 24 

months after August 27, 2012 (the effective 

date of AD 2012–12–15), whichever occurs 

later. Accomplishing the actions required by 

this paragraph terminates the requirements of 

paragraph (h)(1)(ii) of this AD. 

(m) Initial Inspection Compliance Times for 

AWL No. 28–AWL–25 

This paragraph restates the requirements of 

paragraph (m) of AD 2012–12–15, 

Amendment 39–17095 (77 FR 42964, July 23, 

2012). The initial inspection compliance time 

for AWL No. 28–AWL–25 of Section 9, 

‘‘Airworthiness Limitations (AWLs) and 

Certification Maintenance Requirements 

(CMRs),’’ of the Boeing 757 MPD Document, 

D622N001–9, Revision December 2008; 

Boeing TR 09–010, dated July 2010, to 

Section 9, ‘‘Airworthiness Limitations 

(AWLs) and Certification Maintenance 

Requirements (CMRs),’’ of Boeing 757 MPD 

Document, D622N001–9; or Boeing TR 09– 

011, dated November 2010, to Section 9, 

‘‘Airworthiness Limitations (AWLs) and 

Certification Maintenance Requirements 

(CMRs),’’ of the Boeing 757 MPD Document, 

D622N001–9; is within 72 months after 

accomplishing the actions specified in 

Boeing Service Bulletin 757–28A0088 (which 

is not incorporated by reference in this AD). 

(n) Initial Inspection Compliance Times for 

AWL No. 28–AWL–26 

This paragraph restates the requirements of 

paragraph (n) of AD 2012–12–15, 

Amendment 39–17095 (77 FR 42964, July 23, 

2012). The initial inspection compliance time 

for AWL No. 28–AWL–26 of Section 9, 

‘‘Airworthiness Limitations (AWLs) and 

Certification Maintenance Requirements 

(CMRs),’’ of the Boeing 757 MPD Document, 

D622N001–9, Revision December 2008; 

Boeing TR 09–010, dated July 2010, to 

Section 9, ‘‘Airworthiness Limitations 

(AWLs) and Certification Maintenance 

Requirements (CMRs),’’ of Boeing 757 MPD 

Document, D622N001–9; or Boeing TR 09– 

011, dated November 2010, to Section 9, 

‘‘Airworthiness Limitations (AWLs) and 

Certification Maintenance Requirements 

(CMRs),’’ of the Boeing 757 MPD Document, 

D622N001–9; is within 12 months after 

accomplishing the actions specified in 

Boeing Service Bulletin 757–28A0105 (which 

is not incorporated by reference in this AD). 

(o) No Alternative Inspections, Inspection 

Intervals, or CDCCLs After the Actions 

Required by Paragraph (k) of This AD Are 

Done 

This paragraph restates the requirements of 

paragraph (o) of AD 2012–12–15, 

Amendment 39–17095 (77 FR 42964, July 23, 

2012). After accomplishing the actions 

specified in paragraph (k) of this AD, no 

alternative inspections, inspection intervals, 

or CDCCLs may be used unless the 

inspections, intervals, or CDCCLs are 

approved as an AMOC in accordance with 

the procedures specified in paragraph (s) of 

this AD. 

(p) Terminating Action for AD 2008–11–07, 

Amendment 39–15529 (73 FR 30755, May 

29, 2008) 

This paragraph restates the requirements of 

paragraph (p) of AD 2012–12–15, 

Amendment 39–17095 (77 FR 42964, July 23, 

2012). Incorporating AWLs No. 28–AWL–20 

and No. 28–AWL–26 into the maintenance 

program in accordance with paragraph (k)(3) 

of this AD terminates the actions required by 

paragraphs (j) and (m) of AD 2008–11–07, 

Amendment 39–15529 (73 FR 30755, May 29, 

2008). 

(q) Terminating Action for AD 2009–06–20, 

Amendment 39–15857 (74 FR 12236, March 

24, 2009) 

This paragraph restates the requirements of 

paragraph (q) of AD 2012–12–15, 

Amendment 39–17095 (77 FR 42964, July 23, 

2012). Incorporating AWL No. 28–AWL–22 

into the maintenance program in accordance 

with paragraph (k)(3) of this AD terminates 

the actions required by paragraph (h) of AD 

2009–06–20, Amendment 39–15857 (74 FR 

12236, March 24, 2009). 

(r) Credit for Previous Actions 

This paragraph restates the credit given for 

previous actions specified in paragraph (r) of 

AD 2012–12–15, Amendment 39–17095 (77 

FR 42964, July 23, 2012). 

(1) This paragraph provides credit for 

actions required by paragraphs (g) and (h) of 

this AD, if those actions were done before 

June 12, 2008 (the effective date of AD 2008– 

10–11, Amendment 39–15517 (73 FR 25974, 

May 8, 2008)), using Section 9, 

‘‘Airworthiness Limitations (AWLs) and 

Certification Maintenance Requirements 

(CMRs),’’ of the Boeing 757 MPD Document, 

D622N001–9, Revision March 2006; Revision 

October 2006; Revision January 2007; or 

Revision November 2007 (which are not 

incorporated by reference in this AD). 

(2) This paragraph provides credit for 

actions required by paragraphs (m) and (n) of 

this AD, if those actions were done before 

August 27, 2012 (the effective date of AD 

2012–12–15, Amendment 39–17095 (77 FR 

42964, July 23, 2012)), using Boeing TR 09– 

008, dated March 2008, to Section 9, 

‘‘Airworthiness Limitations (AWLs) and 

Certification Maintenance Requirements 

(CMRs),’’ of the Boeing 757 MPD Document, 

D622N001–9 (which was incorporated by 

reference in AD 2008–10–11, Amendment 

39–15517 (73 FR 25974, May 8, 2008)). 

(s) 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 the 

Related Information section of this AD. 

Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@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) AMOCs approved previously for AD 

2008–10–11, Amendment 39–15517 (73 FR 

25974, May 8, 2008); or for 2012–12–15, 

Amendment 39–17095 (77 FR 42964, July 23, 

2012); are approved as AMOCs for the 

corresponding provisions of this AD. 

(t) Related Information 

(1) For more information about this AD, 

contact Kevin Nguyen, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, Seattle 

ACO, 1601 Lind Avenue SW., Renton, 

Washington 98057–3356; phone: 425–917– 

6501; fax: 425–917–6590; email: 

kevin.nguyen@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 January 

17, 2013. 

Michael Kaszycki, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2013–01953 Filed 1–29–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–1320; Directorate 

Identifier 2012–NM–095–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 767 

airplanes. This proposed AD was 

prompted by reports of cracks and heat 

damage on pivot joint components 

found during main landing gear (MLG) 

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6252 Federal Register / Vol. 78, No. 20 / Wednesday, January 30, 2013 / Proposed Rules 

overhaul. For certain airplanes, this 

proposed AD would require repetitive 

inspections of the MLG pivots, truck 

beam bushings, and inner cylinder 

bushings. For all airplanes, this 

proposed AD would require a 

maintenance program revision, one-time 

inspections of the MLG truck beam, and 

related investigative and corrective 

actions (including configuration 

changes) if necessary; accomplishment 

of these actions would terminate the 

repetitive inspections. We are proposing 

this AD to detect and correct heat 

damage and cracks in the pivot pin, 

truck beam lugs, and inner cylinder 

lugs, which could result in fracture of 

the pivot joint components and 

consequent MLG collapse. 

DATES: We must receive comments on 

this proposed AD by March 18, 2013. 

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 proposed 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, Washington. For 

information on the availability of this 

material at the FAA, call 425–227–1221. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; 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: 

Berhane Alazar, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, 

Seattle Aircraft Certification Office 

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

Washington 98057–3356; phone: 425– 

917–6577; fax: 425–917–6590; email: 

berhane.alazar@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– 

2012–1320; Directorate Identifier 2012– 

NM–095–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 

During overhaul of the MLG, pivot 

joint components have been found with 

cracks or heat damage. There have been 

11 such findings on Model 767–400ER 

series airplanes, and 42 findings on 

Model 767–200, –300, and –300F series 

airplanes. The damage was found on 

Model 767–400ER series airplanes as 

early as 8 years from delivery, and on 

Model 767–200, –300, and –300F series 

airplanes as early as 7 years from 

delivery. Heat damage and cracks were 

found at the pivot joint location, caused 

by the truck pitching motion during 

normal airplane operations. High levels 

of heat in the pivot joint can result in 

damage and cracks in the pivot pin, 

truck beam lugs, and inner cylinder 

lugs. These conditions, if not corrected, 

could result in fracture of the pivot joint 

components and consequent MLG 

collapse. 

Relevant Service Information 

We reviewed Boeing Service Bulletin 

767–32A0227, Revision 1, dated 

September 13, 2012. For information on 

the procedures and compliance times, 

see this service information at http:// 

www.regulations.gov by searching for 

Docket No. FAA–2012–1320. 

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 

accomplishing the actions specified in 

the service information described 

previously. 

The phrase ‘‘related investigative 

actions’’ might be used in this proposed 

AD. ‘‘Related investigative actions’’ are 

follow-on actions that (1) are related to 

the primary actions, and (2) further 

investigate the nature of any condition 

found. Related investigative actions in 

an AD could include, for example, 

inspections. 

In addition, the phrase ‘‘corrective 

actions’’ might be used in this proposed 

AD. ‘‘Corrective actions’’ are actions 

that correct or address any condition 

found. Corrective actions in an AD 

could include, for example, repairs. 

Costs of Compliance 

We estimate that this proposed AD 

affects 420 airplanes of U.S. registry. We 

estimate the following costs to comply 

with this proposed AD: 

Action Labor cost Parts cost Cost per 

product 

Number of 

affected U.S. 

airplanes 

Cost on U.S. 

operators 

Maintenance program revision ......... 1 work-hour × $85 per hour = $85 ... $0 $85 420 $35,700 

Repetitive inspections ....................... 59 work-hours × $85 per hour = 

$5,015 per inspection cycle.

0 5,015 38 190,570 

One-time inspections ........................ 147 work-hours × $85 per hour = 

$12,495.

0 12,495 420 5,247,900 

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Federal Register / Vol. 78, No. 20 / Wednesday, January 30, 2013 / Proposed Rules 6253 

We have received no definitive data 

that would enable us to provide cost 

estimates for the on-condition actions 

(including related investigative actions, 

configuration changes, and corrective 

actions) specified in this proposed AD. 

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– 

2012–1320; Directorate Identifier 2012– 

NM–095–AD. 

(a) Comments Due Date 

We must receive comments by March 18, 

2013. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

Model 767–200, –300, –300F, and –400ER 

series airplanes, certificated in any category, 

as identified in Boeing Service Bulletin 767– 

32A0227, Revision 1, dated September 13, 

2012. 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 32, Landing Gear. 

(e) Unsafe Condition 

This AD was prompted by reports of cracks 

and heat damage found on pivot joint 

components found during main landing gear 

(MLG) overhaul. We are issuing this AD to 

detect and correct heat damage and cracks in 

the pivot pin, truck beam lugs, and inner 

cylinder lugs, which could result in fracture 

of the pivot joint components and 

consequent MLG collapse. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Maintenance Program Revision 

At the applicable times specified in 

paragraph 1.E., ‘‘Compliance,’’ of Boeing 

Service Bulletin 767–32A0227, Revision 1, 

dated September 13, 2012, except as 

provided by paragraph (j) of this AD, revise 

the maintenance program to incorporate the 

specified maintenance review board (MRB) 

item, in accordance with Part 1 of the 

Accomplishment Instructions of Boeing 

Service Bulletin 767–32A0227, Revision 1, 

dated September 13, 2012. 

(h) Repetitive Pivot Pin and Bushing 

Inspections 

For airplanes identified as Group 1 in 

Boeing Service Bulletin 767–32A0227, 

Revision 1, dated September 13, 2012: At the 

applicable times specified in paragraph 1.E., 

‘‘Compliance,’’ of Boeing Service Bulletin 

767–32A0227, Revision 1, dated September 

13, 2012, except as provided by paragraph (j) 

of this AD, do detailed and etch inspections 

to detect discrepancies (including bronze 

transfer, heat discoloration, darkened streaks, 

thermal spray coating distress, wear, 

cracking, smearing of material into the 

lubrication grooves, or grease not present in 

the bushing inner diameter) of the MLG 

pivots, truck beam bushings, and inner 

cylinder bushings, and do all applicable 

corrective actions, in accordance with the 

Accomplishment Instructions of Boeing 

Service Bulletin 767–32A0227, Revision 1, 

dated September 13, 2012. Do all applicable 

corrective actions before further flight. 

Repeat the inspections thereafter at the 

applicable times specified in paragraph 1.E., 

‘‘Compliance,’’ of Boeing Service Bulletin 

767–32A0227, Revision 1, dated September 

13, 2012. 

(i) MLG Truck Beam Inspections 

For all airplanes: At the applicable time 

specified in paragraph 1.E., ‘‘Compliance,’’ of 

Boeing Service Bulletin 767–32A0227, 

Revision 1, dated September 13, 2012, except 

as provided by paragraph (j) of this AD, 

inspect the MLG truck beam, using a detailed 

inspection, etch inspection, and fluorescent 

penetrant inspection (FPI), as applicable, to 

detect discrepancies (including distress, 

corrosion, and cracking), and do all 

applicable related investigative and 

corrective actions (including configuration 

changes), in accordance with the 

Accomplishment Instructions of Boeing 

Service Bulletin 767–32A0227, Revision 1, 

dated September 13, 2012. Do all applicable 

related investigative and corrective actions 

before further flight. Boeing Service Bulletin 

767–32A0227, Revision 1, dated September 

13, 2012, provides options for accomplishing 

certain corrective actions. 

(j) Service Information Exception 

Where Boeing Service Bulletin 767– 

32A0227, Revision 1, dated September 13, 

2012, specifies a compliance time ‘‘after the 

original issue date of this service bulletin,’’ 

this AD requires compliance within the 

specified compliance time after the effective 

date of this AD. 

(k) Terminating Action 

(1) Accomplishment of the actions required 

by paragraphs (g) and (i) of this AD 

terminates the requirements of paragraph (h) 

of this AD. 

(2) Overhaul of the MLG and installation 

of truck beam and inner cylinder bushings 

having applicable part numbers identified in 

Appendix ‘‘B’’ of Boeing Service Bulletin 

767–32A0227, Revision 1, dated September 

13, 2012, terminate the requirements of 

paragraphs (h) and (i) of this AD, if the 

actions are done using a method approved in 

accordance with the procedures specified in 

paragraph (n) of this AD. 

(l) No Alternative Actions or Intervals 

After accomplishing the revision required 

by paragraph (g) of this AD, no alternative 

actions (e.g., inspections) or intervals may be 

used unless the actions or intervals are 

approved as an alternative method of 

compliance (AMOC) in accordance with the 

procedures specified in paragraph (n) of this 

AD. 

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6254 Federal Register / Vol. 78, No. 20 / Wednesday, January 30, 2013 / Proposed Rules 

(m) Credit for Previous Actions 

This paragraph provides credit for the 

actions specified in paragraphs (g), (h), (i), 

and (k) of this AD, if those actions were 

performed before the effective date of this AD 

using Boeing Alert Service Bulletin 767– 

32A0227, dated April 25, 2012, which is not 

incorporated by reference in this AD. 

(n) 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 the 

Related Information section of this AD. 

Information may be emailed to 9–ANMSeattle-ACO–AMOC-Requests@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 

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 must meet 

the certification basis of the airplane, and the 

approval must specifically refer to this AD. 

(o) Related Information 

(1) For more information about this AD, 

contact Berhane Alazar, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, Seattle 

Aircraft Certification Office (ACO), 1601 Lind 

Avenue SW., Renton, Washington 98057– 

3356; phone: 425–917–6577; fax: 425–917– 

6590; email: berhane.alazar@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, Washington 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, Washington. 

For information on the availability of this 

material at the FAA, call 425–227–1221. 

Issued in Renton, Washington, on January 

23, 2013. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2013–01972 Filed 1–29–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2008–0614; Directorate 

Identifier 2007–NM–351–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. 

SUMMARY: We are revising an earlier 

proposed airworthiness directive (AD) 

for all The Boeing Company Model 737– 

300, –400, and –500 series airplanes. 

That NPRM proposed to require 

repetitive operational tests of the engine 

fuel suction feed of the fuel system, and 

other related testing if necessary. That 

NPRM was prompted by reports of two 

in-service occurrences on Model 737– 

400 airplanes of total loss of boost pump 

pressure of the fuel feed system, 

followed by loss of fuel system suction 

feed capability on one engine, and inflight shutdown of the engine. This 

action revises that NPRM by proposing 

to require repetitive operational tests, 

and corrective actions if necessary. We 

are proposing this supplemental NPRM 

to detect and correct loss of the engine 

fuel suction feed capability of the fuel 

system, which, in the event of total loss 

of the fuel boost pumps, could result in 

dual engine flameout, inability to restart 

the engines, and consequent forced 

landing of the airplane. Since these 

actions impose an additional burden 

over that proposed in the previous 

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 supplemental NPRM by March 18, 

2013. 

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 proposed 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, Washington. For 

information on the availability of this 

material at the FAA, call 425–227–1221. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; 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: Sue 

Lucier, Aerospace Engineer, Propulsion 

Branch, ANM–140S, 1601 Lind Avenue 

SW., Renton, Washington 98057–3356; 

phone: 425–917–6438; fax: 425–917– 

6590; email: suzanne.lucier@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–2008–0614; Directorate Identifier 

2007–NM–351–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 to include an AD that would 

mstockstill on DSK4VPTVN1PROD with