Federal Register / Vol. 77, No. 157 / Tuesday, August 14, 2012 / Rules and Regulations 48423 

(IBR) of the following service information 

under 5 U.S.C. 552(a) and 1 CFR part 51. 

(2) You must use the following service 

information to do the actions required by this 

AD, unless the AD specifies otherwise. 

(i) BAE SYSTEMS (OPERATIONS) 

LIMITED Inspection Service Bulletin ISB.21– 

162, Revision 1, dated September 16, 2010. 

(ii) Subject 53–00–00, ‘‘Fuselage, General— 

Description,’’ of Chapter 53, ‘‘Fuselage,’’ of 

the BAE SYSTEMS BAe 146 Series/AVRO 

146–RJ Series Structural Repair Manual for 

Series 100–200, Revision 66, dated October 

15, 2011. The revision level of this document 

is specified only in the Letter of Transmittal. 

(iii) Subject 53–00–00, ‘‘Fuselage, 

General—Description,’’ of Chapter 53, 

‘‘Fuselage,’’ of the BAE SYSTEMS BAe 146 

Series/AVRO 146–RJ Series Structural Repair 

Manual for Series 300, Revision 44, dated 

October 15, 2011. The revision level of this 

document is specified only in the Letter of 

Transmittal. 

(3) For service information identified in 

this AD, contact BAE SYSTEMS 

(OPERATIONS) LIMITED, Customer 

Information Department, Prestwick 

International Airport, Ayrshire, KA9 2RW, 

Scotland, United Kingdom; telephone +44 

1292 675207; fax +44 1292 675704; email 

RApublications@baesystems.com; Internet 

http://www.baesystems.com/Businesses/ 

RegionalAircraft/index.htm. 

(4) You may review copies of the 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. 

(5) You may also review copies of the 

service information that is incorporated by 

reference at the National Archives and 

Records Administration (NARA). For 

information on the availability of this 

material at an NARA facility, call 202–741– 

6030, or go to http://www.archives.gov/ 

federal_register/code_of_federal_regulations/ 

ibr_locations.html. 

Issued in Renton, Washington, on July 31, 

2012. 

Michael Kaszycki, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–19420 Filed 8–13–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0336; Directorate 

Identifier 2011–NM–213–AD; Amendment 

39–17154; AD 2012–16–07] 

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 737–500 

series airplanes. This AD was prompted 

by reports of chem-mill step cracking on 

the aft lower lobe fuselage skins. This 

AD requires inspections of the fuselage 

skin at the chem-mill steps, and repair 

if necessary. We are issuing this AD to 

detect and correct cracking on the aft 

lower lobe fuselage skins, which could 

result in decompression of the airplane. 

DATES: This AD is effective September 

18, 2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of September 18, 2012. 

ADDRESSES: 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. 

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 AD, the regulatory 

evaluation, any comments received, and 

other information. The address for the 

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

Document 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: 

Wayne Lockett, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, 

Seattle Aircraft Certification Office 

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

Washington 98057–3356; phone: 425– 

917–6447; fax: 425–917–6590; email: 

wayne.lockett@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to the specified products. That 

NPRM published in the Federal 

Register on April 17, 2012 (77 FR 

22686). That NPRM proposed to require 

inspections of the fuselage skin at the 

chem-mill steps, and repair if necessary. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

have considered the comment received. 

Boeing supports the NPRM (77 FR 

22686, April 17, 2012). 

Clarification of Terms in the Relevant 

Service Information Section of the 

NPRM (77 FR 22686, April 17, 2012) 

The Relevant Service Information 

section of the NPRM (77 FR 22686, 

April 17, 2012) specified that ‘‘Related 

investigative actions’’ and ‘‘corrective 

actions’’ are those actions specified in 

the service information that are 

necessary to address the identified 

unsafe condition. Those ‘‘necessary’’ 

actions are applicable to particular 

configurations and conditions. ‘‘Related 

investigative actions’’ are those actions 

that are identified as follow-on actions 

that are: (1) Related to the required 

action, and (2) are on-condition actions 

that further investigate the nature of any 

condition found. Related investigative 

actions could include, for example, 

inspections and operational tests. 

‘‘Corrective actions’’ are those actions 

that are on-condition actions that 

correct or address any condition found. 

Corrective actions could include, for 

example, repairs, removal and 

replacement, and modifications. 

Conclusion 

We reviewed the relevant data, 

considered the comment received, and 

determined that air safety and the 

public interest require adopting the AD 

as proposed—with minor editorial 

changes. We have determined that these 

minor changes: 

• Are consistent with the intent that 

was proposed in the NPRM (77 FR 

22686, April 17, 2012) for correcting the 

unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM (77 FR 22686, 

April 17, 2012). 

Costs of Compliance 

We estimate that this AD affects 91 

airplanes of U.S. registry. We estimate 

the following costs to comply with this 

AD: 


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48424 Federal Register / Vol. 77, No. 157 / Tuesday, August 14, 2012 / Rules and Regulations 

ESTIMATED COSTS

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

Inspections .................... 23 work-hours × $85 per hour = $1,955 per inspection cycle.$0 $1,955 per inspection 

cycle.

$177,905 per inspection 

cycle. 

We estimate the following costs to do 

any necessary corrective actions that 

would be required based on the results 

of the inspection. We have no way of 

determining the number of aircraft that 

might need these corrective actions: 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per 

product 

Inspection ......................................... 2 work-hours × $85 per hour = $170 ........................................................ $0 $170 

Repair .............................................. 7 work-hours × $85 per hour = $595 ........................................................ 0 595 

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): 

2012–16–07 The Boeing Company: 

Amendment 39–17154; Docket No. 

FAA–2012–0336; Directorate Identifier 

2011–NM–213–AD. 

(a) Effective Date 

This AD is effective September 18, 2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

Model 737–500 series airplanes, certificated 

in any category, as identified in Boeing 

Special Attention Service Bulletin 737–53– 

1315, dated July 29, 2011. 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 53, Fuselage. 

(e) Unsafe Condition 

This AD was prompted by reports of chemmill step cracking on the aft lower lobe 

fuselage skins. We are issuing this AD to 

detect and correct cracking on the aft lower 

lobe fuselage skins, which could result in 

decompression of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Inspection 

At the applicable time specified in 

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

Special Attention Service Bulletin 737–53– 

1315, dated July 29, 2011, except as required 

by paragraph (i)(1) of this AD: Do an external 

detailed inspection; and, as applicable, do an 

external or internal subsurface eddy current, 

magneto optic imager, or C-scan inspection; 

to detect cracks in the fuselage skin at the 

chem-mill steps; in accordance with the 

Accomplishment Instructions of Boeing 

Special Attention Service Bulletin 737–53– 

1315, dated July 29, 2011. Repeat the 

inspections thereafter at the applicable times 

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

Boeing Special Attention Service Bulletin 

737–53–1315, dated July 29, 2011. 

(h) Repair 

If any crack is found during any inspection 

required by paragraph (g) of this AD: At the 

applicable times specified in paragraph 1.E., 

‘‘Compliance,’’ of Boeing Special Attention 

Service Bulletin 737–53–1315, dated July 29, 

2011, do all the actions specified in either 

paragraph (h)(1) or (h)(2) of this AD. 

(1) Do a time-limited repair; followed by 

applicable related investigative actions, 

corrective actions, and making the timelimited repair permanent; in accordance with 

Boeing Special Attention Service Bulletin 

737–53–1315, dated July 29, 2011, except as 

required by paragraph (i)(2) of this AD. 

(2) Do a permanent repair, including a 

detailed inspection of the bonded doubler for 

disbonding and a high frequency eddy 

current inspection for cracks of the bonded 

doubler, in accordance with Boeing Special 

Attention Service Bulletin 737–53–1315, 

dated July 29, 2011. Repair any cracks and 

disbonding before further flight, in 

accordance with Boeing Special Attention 

Service Bulletin 737–53–1315, dated July 29, 

2011, except as required by paragraph (i)(2) 

of this AD. Accomplishment of the 

permanent repair terminates the repetitive 

inspections required by this AD for the 

area(s) of the repair only. 


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Federal Register / Vol. 77, No. 157 / Tuesday, August 14, 2012 / Rules and Regulations 48425 

(i) Exceptions to Service Bulletin 

Specifications 

The exceptions specified in paragraphs 

(i)(1) and (i)(2) of this AD apply to this AD. 

(1) Where Boeing Special Attention Service 

Bulletin 737–53–1315, dated July 29, 2011, 

specifies a compliance time after ‘‘the date of 

this service bulletin,’’ this AD requires 

compliance within the specified compliance 

time after the effective date of this AD. 

(2) Where Boeing Special Attention Service 

Bulletin 737–53–1315, dated July 29, 2011, 

specifies to contact Boeing for repair 

instructions: Before further flight, repair 

using a method approved in accordance with 

the procedures specified in paragraph (j) of 

this AD. 

(j) 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, it 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 

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. 

(k) Related Information 

For more information about this AD, 

contact Wayne Lockett, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, Seattle 

Aircraft Certification Office (ACO), 1601 Lind 

Avenue SW., Renton, Washington 98057– 

3356; phone: 425–917–6447; fax: 425–917– 

6590; email: wayne.lockett@faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

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

51. 

(2) You must use the following service 

information to do the actions required by this 

AD, unless the AD specifies otherwise. 

(i) Boeing Special Attention Service 

Bulletin 737–53–1315, dated July 29, 2011. 

(ii) Reserved. 

(3) 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. 

(4) You may review copies of the service 

information at the FAA, Transport Airplane 

Directorate, 1601 Lind Avenue SW., Renton, 

Washington 98057–3356. For information on 

the availability of this material at the FAA 

call 425–227–1221. 

(5) You may also review copies of the 

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/ibr-locations.html. 

Issued in Renton, Washington, on July 31, 

2012. 

Michael Kaszycki, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–19423 Filed 8–13–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0192; Directorate 

Identifier 2011–NM–225–AD; Amendment 

39–17152; AD 2012–16–05] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Airbus Model A330–200 and –200 

freighter series airplanes; and Model 

A340–200, –300, –500, and –600 series 

airplanes. This AD was prompted by 

fuel system reviews conducted by the 

manufacturer. This AD requires 

modification of the control circuit for 

the fuel pumps for the center fuel tanks 

for certain airplanes, and center and rear 

fuel tanks for certain other airplanes. 

We are issuing this AD to prevent the 

potential of ignition sources inside fuel 

tanks, which, in combination with 

flammable fuel vapors, could result in 

fuel tank explosions and consequent 

loss of the airplane. 

DATES: This AD becomes effective 

September 18, 2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of September 18, 2012. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

www.regulations.gov or in person at the 

U.S. Department of Transportation, 

Docket Operations, M–30, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue SE., 

Washington, DC. 

FOR FURTHER INFORMATION CONTACT: 

Vladimir Ulyanov, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue SW., Renton, WA 

98057–3356; telephone 425–227–1138; 

fax 425–227–1149. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to the specified products. That 

NPRM was published in the Federal 

Register on March 16, 2012 (77 FR 

15644). That NPRM proposed to correct 

an unsafe condition for the specified 

products. The MCAI states: 

* * * [T]he FAA issued a set of new rules 

related to Fuel Tank Safety including Special 

Federal Aviation Regulation (SFAR) 88. In 

line with SFAR88, the JAA [Joint Aviation 

Authorities] issued policy JAA INT/POL 25/ 

12 and recommended to the National 

Aviation Authorities (NAA) the application 

of a similar regulation. 

To ensure compliance with the 

requirements set by SFAR88 and JAA INT/ 

POL 25/12, this [EASA] AD requires that 

Ground Fault Interrupters (GFI) are installed 

into the electrical power supply circuits of 

fuel pumps for which the canisters become 

uncovered during normal operation, taking 

into account normal fuel reserve or the fuel 

level, triggering the low fuel level warning. 

The function of this additional system 

protection is to electrically isolate the pump 

if a ground fault condition occurs 

downstream of the GFI. The GFI gives 

additional earth leakage protection to the 

downstream circuit. 

The unsafe condition is the potential of 

ignition sources inside fuel tanks, 

which, in combination with flammable 

fuel vapors, could result in fuel tank 

explosions and consequent loss of the 

airplane. The corrective action is 

modifying the control circuits of the fuel 

pump for the rear and center fuel tanks. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

received no comments on the NPRM (77 

FR 15644, March 16, 2012) or on the 

determination of the cost to the public. 

Changes to the AD 

European Aviation Safety Agency 

(EASA) has issued AD 2011–0196, dated 

October 7, 2011, corrected March 23, 

2012, to correct a typographical error in 

the applicability paragraph of the MCAI 

which changed the intent of the 

applicability. The exception to the 


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