65938 Federal Register / Vol. 76, No. 206 / Tuesday, October 25, 2011 / Rules and Regulations 

airplanes; Model A300 B4–605R and B4– 

622R airplanes; Model A300 F4–605R and 

F4–622R airplanes; Model A300 C4–605R 

Variant F airplanes; and Model A310–203, 

–204, –221, –222, –304, –322, –324, and –325 

airplanes; certificated in any category. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 24: Electrical Power. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

An operator reported several cases of wire 

damages at the pylon/wing interface. 

Analysis revealed that wires damages are due 

to installation quality issue resulting from 

lack of information in installation drawings 

and job cards. 

Moreover detailed analysis has highlighted 

that the Low Pressure Valve (LPV) wires were 

not segregated by design. 

* * * * * 

If left uncorrected, the wire chafing could 

impact fire protection and detection system. 

It may also induce dormant failure on LPV 

preventing its closure leading to a permanent 

and uncontrolled fire (in case of fire ignited 

upstream the High Pressure Valve (HPV)). 

* * * * * 

Compliance 

(f) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified, unless the 

actions have already been done. 

Actions 

(g) Within 30 months or 4,000 flight hours 

after the effective date of this AD, whichever 

occurs first: Modify the electrical installation 

in the pylon/wing interface on the left-hand 

and right-hand side by doing a general visual 

inspection of wires for damage and doing all 

applicable repairs, replace the cable tie with 

lacing tape, improve the electrical 

installation at the level of the electrical ramp, 

and improve the segregation of both routes of 

the LPV channels 1 and 2 between LPV 

connector and ramp; in accordance with the 

Accomplishment Instructions of Airbus 

Mandatory Service Bulletin A300–24–6106, 

excluding Appendix 01, dated March 31, 

2010 (for Airbus Model A300 B4–600, B4– 

600R, and F4–600R series airplanes, and 

Model C4–605R Variant F airplanes); or 

Airbus Mandatory Service Bulletin A310–24– 

2106, Revision 01, including Appendix 01, 

dated April 4, 2011 (for Airbus Model A310 

series airplanes). Do all applicable repairs 

before further flight. 

FAA AD Differences 

Note 1: This AD differs from the MCAI 

and/or service information as follows: No 

differences. 

Other FAA AD Provisions 

(h) The following provisions also apply to 

this AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, ANM–116, FAA, has the authority to 

approve AMOCs for this AD, if requested 

using the procedures found in 14 CFR 39.19. 

In accordance with 14 CFR 39.19, send your 

request to your principal inspector or local 

Flight Standards District Office, as 

appropriate. If sending information directly 

to the International Branch, send it to ATTN: 

Dan Rodina, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, 1601 Lind 

Avenue, SW., Renton, Washington 98057– 

3356; telephone (425) 227–2125; fax (425) 

227–1149. Information may be e-mailed to: 9- 

ANM-11-AMOC-REQUESTS@faa.gov. Before 

using any approved AMOC, notify your 

appropriate principal inspector, or lacking a 

principal inspector, the manager of the local 

flight standards district office/certificate 

holding district office. The AMOC approval 

letter must specifically reference this AD. 

(2) Airworthy Product: For any requirement 

in this AD to obtain corrective actions from 

a manufacturer or other source, use these 

actions if they are FAA-approved. Corrective 

actions are considered FAA-approved if they 

are approved by the State of Design Authority 

(or their delegated agent). You are required 

to assure the product is airworthy before it 

is returned to service. 

Related Information 

(i) Refer to MCAI European Aviation Safety 

Agency Airworthiness Directive 2010– 

0178R1, excluding Appendix 01, dated May 

20, 2011; Airbus Mandatory Service Bulletin 

A300–24–6106, dated March 31, 2010; and 

Airbus Mandatory Service Bulletin A310–24– 

2106, Revision 01, including Appendix 01, 

dated April 4, 2011; for related information. 

Material Incorporated by Reference 

(j) You must use Airbus Mandatory Service 

Bulletin A300–24–6106, excluding Appendix 

01, dated March 31, 2010; or Airbus 

Mandatory Service Bulletin A310–24–2106, 

Revision 01, including Appendix 01, dated 

April 4, 2011; as applicable; to do the actions 

required by this AD, unless the AD specifies 

otherwise. 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

this service information under 5 U.S.C. 

552(a) and 1 CFR part 51. 

(2) For service information identified in 

this AD, contact Airbus SAS—EAW 

(Airworthiness Office), 1 Rond Point Maurice 

Bellonte, 31707 Blagnac Cedex, France; 

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

93 44 51; e-mail account.airwortheas@airbus.com; Internet http:// 

www.airbus.com. 

(3) 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. 

(4) 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/ 

code_of_federal_regulations/ 

ibr_locations.html. 

Issued in Renton, Washington, on October 

11, 2011. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–27005 Filed 10–24–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0650; Directorate 

Identifier 2010–NM–257–AD; Amendment 

39–16846; AD 2011–22–04] 

RIN 2120–AA64 

Airworthiness Directives; Airbus Model 

A310 Series Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for the 

products listed above. This AD results 

from mandatory continuing 

airworthiness information (MCAI) 

originated by an aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI describes the unsafe 

condition as: 

[T]he FAA has published SFAR 88 (Special 

Federal Aviation Regulation 88). 

In their letters referenced 04/00/02/07/01– 

L296, dated March 4th, 2002, and 04/00/02/ 

07/03–L024, dated February 3rd, 2003, the 

[Joint Aviation Authorities] JAA 

recommended the application of a similar 

regulation to the National Aviation 

Authorities (NAA). 

Under this regulation, all holders of type 

certificates for passenger transport aircraft 

with either a passenger capacity of 30 or 

more, or a payload capacity of 3,402 kg 

(7,500 lb) or more which have received their 

certification since January 1st, 1958, are 

required to conduct a design review against 

explosion risks. 

* * * * * 

The unsafe condition is insufficient 

electrical bonding of the over-wing 

refueling cap adapter, which could 

result in a possible fuel ignition source 

in the fuel tanks. We are issuing this AD 

to require actions to correct the unsafe 

condition on these products. 

DATES: This AD becomes effective 

November 29, 2011. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of November 29, 2011. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 


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Federal Register / Vol. 76, No. 206 / Tuesday, October 25, 2011 / Rules and Regulations 65939 

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: Dan 

Rodina, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–2125; 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 July 5, 2011 (76 FR 39035). 

That NPRM proposed to correct an 

unsafe condition for the specified 

products. The MCAI states: 

[T]he FAA has published SFAR 88 (Special 

Federal Aviation Regulation 88). 

In their letters referenced 04/00/02/07/01– 

L296, dated March 4th, 2002, and 04/00/02/ 

07/03–L024, dated February 3rd, 2003, the 

JAA recommended the application of a 

similar regulation to the National Aviation 

Authorities (NAA). 

Under this regulation, all holders of type 

certificates for passenger transport aircraft 

with either a passenger capacity of 30 or 

more, or a payload capacity of 3,402 kg 

(7,500 lb) or more which have received their 

certification since January 1st, 1958, are 

required to conduct a design review against 

explosion risks. 

* * * * * 

* * * [This EASA AD] requires the 

additional work introduced by Airbus SB 

A310–28–2142 at revision 3. 

The unsafe condition is insufficient 

electrical bonding of the over-wing 

refueling cap adapter, which could 

result in a possible fuel ignition source 

in the 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 (76 

FR 39035, July 5, 2011) or on the 

determination of the cost to the public. 

Revision to Airbus Mandatory Service 

Bulletin A310–28–2142 

Airbus has issued Mandatory Service 

Bulletin A310–28–2142, Revision 04, 

dated November 30, 2010. No additional 

work is included in this revision for 

airplanes modified by any previous 

issue of this document. We have 

changed paragraphs (g), (g)(1), (g)(2), (h), 

(k), and sub-paragraph (1) of Note 1 of 

this AD to refer to Airbus Service 

Bulletin A310–28–2142, Revision 04, 

dated November 30, 2010, and added 

paragraph (i) to this AD to give credit for 

actions accomplished in accordance 

with Airbus Mandatory Service Bulletin 

A310–28–2142, Revision 03, dated 

November 18, 2009. 

Conclusion 

We reviewed the available data and 

determined that air safety and the 

public interest require adopting the AD 

with the changes described previously. 

We determined that these changes will 

not increase the economic burden on 

any operator or increase the scope of the 

AD. 

Differences Between This AD and the 

MCAI or Service Information 

We have reviewed the MCAI and 

related service information and, in 

general, agree with their substance. But 

we might have found it necessary to use 

different words from those in the MCAI 

to ensure the AD is clear for U.S. 

operators and is enforceable. In making 

these changes, we do not intend to differ 

substantively from the information 

provided in the MCAI and related 

service information. 

We might also have required different 

actions in this AD from those in the 

MCAI in order to follow our FAA 

policies. Any such differences are 

highlighted in a NOTE within the AD. 

Costs of Compliance 

We estimate that this AD will affect 

66 products of U.S. registry. We also 

estimate that it will take about 4 workhours per product to comply with the 

basic requirements of this AD. The 

average labor rate is $85 per work-hour. 

Required parts will cost about $200 per 

product. Where the service information 

lists required parts costs that are 

covered under warranty, we have 

assumed that there will be no charge for 

these parts. As we do not control 

warranty coverage for affected parties, 

some parties may incur costs higher 

than estimated here. Based on these 

figures, we estimate the cost of this AD 

to the U.S. operators to be $35,640, or 

$540 per product. 

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 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); and 

3. 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. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this AD and placed it in the AD docket. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; 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 the NPRM (76 FR 39035, July 

5, 2011), 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. 

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: 


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65940 Federal Register / Vol. 76, No. 206 / Tuesday, October 25, 2011 / Rules and Regulations 

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 AD: 

2011–22–04 Airbus: Amendment 39– 

16846. FAA–2011–0650; Directorate 

Identifier 2010–NM–257–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective November 29, 2011. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to airplanes identified 

in paragraphs (c)(1) and (c)(2) of this AD. 

(1) Airbus Model A310–203, A310–204, 

A310–221 and A310–222 airplanes (without 

trim tank), all serial numbers, except 

airplanes on which Airbus Mandatory 

Service Bulletin A310–28–2143, dated July 

20, 2005; and Airbus Mandatory Service 

Bulletin A310–28–2142, Revision 03, dated 

November 18, 2009; have been done; 

certificated in any category. 

(2) Model A310–304, A310–322, A310– 

324, and A310–325 airplanes (fitted with 

trim tank), all serial numbers, except 

airplanes on which Airbus Mandatory 

Service Bulletin A310–28–2143, dated July 

20, 2005; Airbus Mandatory Service Bulletin 

A310–28–2153, dated July 20, 2005; and 

Airbus Mandatory Service Bulletin 310–28– 

2142, Revision 03, dated November 18, 2009; 

have been done; certificated in any category. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 28: Fuel System. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

[T]he FAA has published SFAR 88 (Special 

Federal Aviation Regulation 88). 

In their letters referenced 04/00/02/07/01– 

L296, dated March 4th, 2002, and 04/00/02/ 

07/03–L024, dated February 3rd, 2003, the 

[Joint Aviation Authorities] JAA 

recommended the application of a similar 

regulation to the National Aviation 

Authorities (NAA). 

Under this regulation, all holders of type 

certificates for passenger transport aircraft 

with either a passenger capacity of 30 or 

more, or a payload capacity of 3,402 kg 

(7,500 lb) or more which have received their 

certification since January 1st, 1958, are 

required to conduct a design review against 

explosion risks. 

* * * * * 

The unsafe condition is insufficient electrical 

bonding of the over-wing refueling cap 

adapter, which could result in a possible fuel 

ignition source in the fuel tanks. 

Compliance 

(f) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified, unless the 

actions have already been done. 

Resistance Measurement 

(g) For configuration 05 and 06 airplanes, 

as identified in Airbus Mandatory Service 

Bulletin A310–28–2142, Revision 04, dated 

November 30, 2010, on which any Airbus 

service bulletin identified in table 1 of this 

AD has been done: Within 3 months after the 

effective date of this AD, do the actions in 

paragraph (g)(1) or (g)(2) of this AD, as 

applicable. 

TABLE 1—PREVIOUSLY ACCOMPLISHED AIRBUS SERVICE BULLETINS

Airbus Service Bulletin Revision Date 

Airbus Mandatory Service Bulletin A310–28–2142 ................................................................................. ............................ August 26, 2005. 

Airbus Mandatory Service Bulletin A310–28–2142 ................................................................................. 01 July 17, 2006. 

Airbus Mandatory Service Bulletin A310–28–2142 ................................................................................. 02 September 3, 2007. 

(1) For configuration 05 airplanes: Do a 

resistance check of the inboard and outboard 

over-wing refuel cap mounts between the 

flange face of the refuel insert and the wing, 

in accordance with the Accomplishment 

Instructions of Airbus Mandatory Service 

Bulletin A310–28–2142, Revision 04, dated 

November 30, 2010. 

(2) For configuration 06 airplanes: Do a 

resistance check of the outboard over-wing 

refuel cap mounts between the flange face of 

the refuel insert and the wing, in accordance 

with the Accomplishment Instructions of 

Airbus Mandatory Service Bulletin A310–28– 

2142, Revision 04, dated November 30, 2010. 

Corrective Action 

(h) If during any resistance measurement 

required by paragraph (g)(1) or (g)(2) of this 

AD, a resistance of 10 milliohm (mohm) or 

greater is found: Before further flight, do all 

applicable corrective actions, in accordance 

with the Accomplishment Instructions of 

Airbus Mandatory Service Bulletin A310–28– 

2142, Revision 04, dated November 30, 2010. 

Credit for Actions Accomplished in 

Accordance With Previous Service 

Information 

(i) Resistance measurements and corrective 

actions done in accordance with Airbus 

Mandatory Service Bulletin A310–28–2142, 

Revision 03, dated November 18, 2009, 

before the effective date of this AD are 

acceptable for compliance with the 

corresponding resistance measurements and 

corrective actions required by paragraphs (g) 

and (h) of this AD. 

FAA AD Differences 

Note 1: This AD differs from the MCAI 

and/or service information as follows: 

(1) Airbus Mandatory Service Bulletin 

A310–28–2142, Revision 04, dated November 

30, 2010, specifies that if any resistance 

measurement is more than 10 mohm, 

corrective actions must be done. This AD 

specifies that if any resistance measurement 

is 10 mohm or greater, corrective actions 

must be done. 

(2) Paragraphs (1), (2), and (4) of European 

Aviation Safety Agency (EASA) 

Airworthiness Directive 2010–0199, dated 

September 30, 2010, include actions that are 

not required in this AD. These actions are 

required by AD 2007–20–04, Amendment 

39–15214 (72 FR 56258, October 3, 2007). 

Other FAA AD Provisions 

(j) The following provisions also apply to 

this AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, ANM–116, Transport Airplane 

Directorate, FAA, has the authority to 

approve AMOCs for this AD, if requested 

using the procedures found in 14 CFR 39.19. 

In accordance with 14 CFR 39.19, send your 

request to your principal inspector or local 

Flight Standards District Office, as 

appropriate. Send information to Attn: Dan 

Rodina, Aerospace Engineer, International 

Branch, ANM–116, Transport Airplane 

Directorate, FAA 1601 Lind Avenue, SW., 

Renton, Washington 98057–3356; telephone 

(425) 227–2125; fax (425) 227–1149. 

Information may be e-mailed to: 9-ANM-116- 

AMOC-REQUESTS@faa.gov. Before using 

any approved AMOC, notify your appropriate 

principal inspector, or lacking a principal 

inspector, the manager of the local flight 

standards district office/certificate holding 

district office. The AMOC approval letter 

must specifically reference this AD. 

(2) Airworthy Product: For any requirement 

in this AD to obtain corrective actions from 

a manufacturer or other source, use these 

actions if they are FAA-approved. Corrective 

actions are considered FAA-approved if they 

are approved by the State of Design Authority 

(or their delegated agent). You are required 

to assure the product is airworthy before it 

is returned to service. 

Related Information 

(k) Refer to MCAI EASA Airworthiness 

Directive 2010–0199, dated September 30, 

2010; and Airbus Mandatory Service Bulletin 

A310–28–2142, Revision 04, dated November 

30, 2010. 

Material Incorporated by Reference 

(l) You must use Airbus Mandatory Service 

Bulletin A310–28–2142, Revision 04, dated 

November 30, 2010, to do the actions 


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Federal Register / Vol. 76, No. 206 / Tuesday, October 25, 2011 / Rules and Regulations 65941 

required by this AD, unless the AD specifies 

otherwise. 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

this service information under 5 U.S.C. 

552(a) and 1 CFR part 51. 

(2) For service information identified in 

this AD, contact Airbus SAS–EAW 

(Airworthiness Office), 1 Rond Point Maurice 

Bellonte, 31707 Blagnac Cedex, France; 

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

93 44 51; e-mail: account.airwortheas@airbus.com; Internet: http:// 

www.airbus.com. 

(3) 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. 

(4) 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/ 

code_of_federal_regulations/ 

ibr_locations.html. 

Issued in Renton, Washington, on October 

13, 2011. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–27393 Filed 10–24–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0993; Directorate 

Identifier 2010–NE–08–AD; Amendment 39– 

16849; AD 2011–22–07] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

plc RB211–524 Series, RB211–Trent 

700 Series, and RB211–Trent 800 

Series Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for the 

products listed above. This AD results 

from mandatory continuing 

airworthiness information (MCAI) 

issued by an aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI describes the unsafe 

condition as: 

Cracking has been found on the inner wall 

between intermediate dilution chutes on a 

total of five front combustion liners of the 

standard corresponding to Rolls-Royce 

RB211 Service Bulletin No. 72–D133. The 

lives of two of these liners were confirmed 

to be below the currently valid borescope 

inspection interval. Ultimately, crack 

propagation could result in hot gas breakout 

with potential of downstream component 

distress and multiple turbine blade release 

beyond containment capabilities of the 

engine casings. Thus, cracking of this nature 

constitutes a potentially unsafe condition. 

Since Rolls-Royce Service Bulletin No. 72– 

E902 introduces further developments of 

Rolls-Royce RB211 Service Bulletin No. 72– 

D133, engines incorporating Rolls-Royce 

RB211 Service Bulletin No. 72–E902 are also 

considered to be potentially affected and are 

therefore included in the applicability of this 

AD. 

We are issuing this AD to detect cracks 

in the front combustion liner, which 

could result in hot section distress, 

multiple blade release, and possible 

damage to the airplane. 

DATES: This AD becomes effective 

November 29, 2011. The Director of the 

Federal Register approved the 

incorporation by reference of certain 

publications listed in this AD as of 

November 29, 2011. 

ADDRESSES: The Docket Operations 

office is located at Docket Management 

Facility, U.S. Department of 

Transportation, 1200 New Jersey 

Avenue, SE., West Building Ground 

Floor, Room W12–140, Washington, DC 

20590–0001. 

FOR FURTHER INFORMATION CONTACT: 

Alan Strom, Aerospace Engineer, Engine 

Certification Office, FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

e-mail: alan.strom@faa.gov; phone: 781– 

238–7143; fax: 781–238–7199. 

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 October 5, 2010 (75 FR 

61363). That NPRM proposed to correct 

an unsafe condition for the specified 

products. The MCAI states that: 

Cracking has been found on the inner wall 

between intermediate dilution chutes on a 

total of five front combustion liners of the 

standard corresponding to Rolls-Royce 

RB211 Service Bulletin No. 72–D133. The 

lives of two of these liners were confirmed 

to be below the currently valid borescope 

inspection interval. Ultimately, crack 

propagation could result in hot gas breakout 

with potential of downstream component 

distress and multiple turbine blade release 

beyond containment capabilities of the 

engine casings. Thus, cracking of this nature 

constitutes a potentially unsafe condition. 

Since Rolls-Royce Service Bulletin No. 72– 

E902 introduces further developments of 

Rolls-Royce RB211 Service Bulletin No. 72– 

D133, engines incorporating Rolls-Royce 

RB211 Service Bulletin No. 72–E902 are also 

considered to be potentially affected and are 

therefore included in the applicability of this 

AD. 

This AD requires a change to the initial 

and repeat borescope inspection intervals for 

the front combustion liner. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

considered the comments received. 

Request To Expand Address for Service 

Information 

One commenter, Rolls-Royce plc (RR), 

asked us to consider changing the 

information for getting the service 

information to ‘‘For any questions 

concerning the technical content of the 

requirements in this AD (NPRM), please 

contact your designated Rolls-Royce 

representative for a copy of the service 

information, please download the 

publication from your Aeromanager 

account at http:// 

www.aeromanager.com. If you do not 

have a designated representative or an 

Aeromanager account, please contact 

Corporate Communications at RollsRoyce plc, PO Box 31, Derby, DE24 8BJ, 

United Kingdom, phone: 011–44–1331– 

242424, fax: 011–44–1332–249936, or 

e-mail: http://www.rolls-royce.com/ 

contact/civil_team.jsp identifying the 

correspondence as being related to 

Airworthiness Directives.’’ RR states 

that this should make sure that any 

questions from operators of their 

engines and those from other parties are 

directed to the area best equipped to 

answer. 

We partially agree. We agree that 

operators and maintenance providers 

need to get timely and accurate service 

information, and that additional 

information is worth including. We 

changed paragraph (k) of the AD to state 

‘‘* * * contact Corporate 

Communications at Rolls-Royce plc PO 

Box 31, Derby, DE24 8BJ, United 

Kingdom, Phone: 011–44–1331–242424, 

fax 011–44–1332–249936 or e-mail from 

http://www.rolls-royce.com/contact/ 

civil_team.jsp identifying the 

correspondence as being related to 

Airworthiness Directives.’’ 

We do not agree that operators or 

maintenance providers should contact 

RR for questions about this AD. We did 

not include that information in the AD. 

Requests To Change References to the 

Service Bulletin That Is Incorporated 

by Reference 

Two commenters, American Airlines 

(AA) and The Boeing Company 

(Boeing), asked us to add ‘‘or later 


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