46550 Federal Register / Vol. 73, No. 155 / Monday, August 11, 2008 / Rules and Regulations 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2007–0036; Directorate 

Identifier 2007–NE–22–AD; Amendment 39–

15636; AD 2008–16–18] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

plc RB211–524 Series Turbofan 

Engines 

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) 

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: 

Recently an RB211 HP turbine disc has 

been found with a crack which had 

propagated further than expected from the 

risk model that was used to establish the 

original inspection. 

We are issuing this AD to detect cracks 

that could cause the high pressure (HP) 

turbine disc to fail and result in 

uncontained failure of the engine. 

DATES: This AD becomes effective 

September 15, 2008. The Director of the 

Federal Register approved the 

incorporation by reference of certain 

publications listed in this AD as of 

September 15, 2008. 

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: 

Jason Yang, Aerospace Engineer, Engine 

Certification Office, FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

e-mail: jason.yang@faa.gov; telephone 

(781) 238–7747; 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 24, 2007 (72 FR 

60293). That NPRM proposed to correct 

an unsafe condition for the specified 

products. The Civil Aviation Authority 

(CAA), which is the aviation authority 

for the United Kingdom, has issued 

United Kingdom Airworthiness 

Directive G–2006–0002, dated February 

13, 2006, to correct an unsafe condition 

for the specified products. The CAA AD 

states: 

A population of HP turbine discs that were 

manufactured between 1989–1999 and which 

were subject to possible machining 

anomalies, were believed to have an 

increased chance of suffering from cooling air 

hole cracking, compared to the general fleet 

population of HP turbine discs. As a result 

of this risk, Rolls-Royce issued NonModification Service Bulletin (NMSB) 72–

C816, recommending in-service inspections 

of the subject discs. 

Recently an RB211 HP turbine disc has 

been found with a crack which had 

propagated further than expected from the 

risk model that was used to establish the 

original inspection defined in the above 

NMSB; This has led to the need for a revision 

of the original inspection requirements. 

An HP turbine disc fracture would be 

uncontained and create a potential unsafe 

condition. Accordingly, this AD introduces 

revised inspection requirements to reflect the 

increased risk of HP turbine disc cracking 

and potential disc fracture. 

You may obtain further information by 

examining the CAA AD in the AD 

docket. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

considered the comment received. The 

commenter supports the NPRM. 

Editorial Change for Clarity 

We changed the paragraph layering in 

paragraph (e) of the regulatory text to 

clarify the requirements for disks that 

have a serial number in Table 1 of this 

AD and disks that don’t have a serial 

number in Table 1 of this AD. 

Conclusion 

We reviewed the available data, 

including the comment received, and 

determined that air safety and the 

public interest require adopting the AD 

with the change described previously. 

We determined that this change will not 

increase the economic burden on any 

operator or increase the scope of the AD. 

Costs of Compliance 

We estimate that this AD will affect 

72 engines of U.S. registry. We also 

estimate that it will take about 10 workhours per product to comply with this 

AD. The average labor rate is $80 per 

work-hour. Required parts will cost 

about $15,000 per product. Based on 

these figures, we estimate the total cost 

of the proposed AD to U.S. operators to 

be $1,137,600. Our cost estimate is 

exclusive of possible warranty coverage. 

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 this AD, the regulatory 

evaluation, any comments received, and 

other information. The street address for 

the Docket Operations office (telephone 

(800) 647–5527) is provided in the 

ADDRESSES section. Comments will be 


jlentini on PROD1PC65 with RULES
Federal Register / Vol. 73, No. 155 / Monday, August 11, 2008 / Rules and Regulations 46551 

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: 

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: 

2008–16–18 Rolls-Royce plc: Amendment 

39–15636. Docket No. FAA–2007–0036; 

Directorate Identifier 2007–NE–22–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective September 15, 2008. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Rolls-Royce (RR) 

RB211–524 series turbofan engines with 

certain high pressure (HP) turbine discs 

installed. These engines are installed on, but 

not limited to, Boeing 747 series and 767 

series airplanes and Lockheed L1011 series 

airplanes. 

Reason 

(d) Recently an RB211 HP turbine disc has 

been found with a crack which had 

propagated further than expected from the 

risk model that was used to establish the 

original inspection. 

We are issuing this AD to detect cracks that 

could cause the HP turbine disc to fail and 

result in uncontained failure of the engine. 

Actions and Compliance 

(e) Unless already done, do the following 

actions. 

(1) Carry out the eddy current inspection 

as detailed in Section 3—Accomplishment 

Instructions of Rolls-Royce NMSB RB.211–

72–AE718, dated January 24, 2006. 

(2) Carry out the eddy current inspection 

in accordance with the following schedule: 

(i) The HP disc serial numbers listed in 

Table 1 are to be inspected as follows: 

TABLE 1—HP DISC SERIAL NUMBERS

BY PART NUMBER

Part No. Serial No. 

UL29473 ........... LAQDY6043 

UL29473 ........... LAQDY6048 

TABLE 1—HP DISC SERIAL NUMBERS

BY PART NUMBER—Continued 

Part No. Serial No. 

UL29473 ........... LAQDY6079 

UL29473 ........... LDRCZ10057 

UL29473 ........... LDRCZ10264 

UL29473 ........... LDRCZ10415 

UL29473 ........... LDRCZ11402 

UL29473 ........... LDRCZ11425 

UL29473 ........... LDRCZ11497 

UL29473 ........... LDRCZ11663 

UL29473 ........... LDRCZ11679 

UL29473 ........... LDRCZ12301 

UL29473 ........... LDRCZ12308 

UL29473 ........... LDRCZ12316 

UL29473 ........... LDRCZ12319 

UL29473 ........... LQDY6957 

UL29473 ........... LQDY9075 

UL29473 ........... LQDY9084 

UL29473 ........... LQDY9557 

UL29473 ........... LQDY9906 

UL29473 ........... LQDY9956 

UL29473 ........... LQDY9970 

UL29473 ........... LQDY9985 

UL29472 ........... LQDY9125 

UL29472 ........... LQDY9554 

UL29472 ........... LQDY9582 

UL29472 ........... LQDY9895 

UL29472 ........... LQDY9910 

UL29472 ........... LQDY9947 

UL29472 ........... LQDY9960 

UL24994 ........... LQDY6777 

UL24994 ........... LQDY6792 

UL24994 ........... LQDY6859 

UL24994 ........... LQDY6860 

UL24994 ........... LQDY6866 

UL24994 ........... LQDY6869 

UL24994 ........... LQDY6934 

UL24994 ........... LQDY6946 

UL24994 ........... LQDY6963 

UL23166 ........... LQDY6745 

UL23166 ........... LQDY6846 

UL23166 ........... LQDY6848 

UL23166 ........... LQDY6954 

FK24790 ........... LDRCZ12492 

FK24790 ........... LDRCZ12694 

(A) For all RB211–524 engine marks except 

RB211–524D4 variants: 

(1) If the HP turbine disc cycles are greater 

than 6150 cycles since new on the effective 

date of this AD, inspect the HP turbine disc 

within 500 cycles after the effective date of 

this AD. 

(2) If the HP turbine disc cycles are less 

than 6150 cycles since new on the effective 

date of this AD, inspect the disc by 

whichever is the soonest of the conditions 

below: 

(i) Prior to reaching 6650 cycles since new. 

The HP turbine disc life at inspection must 

be greater than 700 cycles since new. 

(ii) At next shop visit where the HP turbine 

rotor is removed from the Combustor Outer 

Case and the HP turbine disc life is greater 

than 700 cycles since new. If a HP turbine 

disc that meets these cyclic life criteria is 

currently at shop visit, and if, at the effective 

date of this Airworthiness Directive, it has 

not yet been reinstalled into the Combustion 

Outer Case, then the HP turbine disc must be 

inspected in accordance with the 

requirements of this Airworthiness Directive 

at the current shop visit. 

(B) For all RB211–524D4 engine mark 

variants: 

(1) If the HP turbine disc cycles are greater 

than 5000 cycles since new on the effective 

date of this AD, inspect the HP turbine disc 

within 500 cycles after the effective date of 

this AD. 

(2) If the HP turbine disc cycles were less 

than 5000 cycles since new on the effective 

date of this AD, inspect the HP turbine disc 

by whichever is the soonest of the conditions 

below: 

(i) Prior to reaching 5500 cycles since new. 

The HP turbine disc life at inspection must 

be greater than 700 cycles since new. 

(ii) At the next shop visit where the HP 

turbine rotor is removed from the Combustor 

Outer Case and the HP turbine disc life is 

greater than 700 cycles since new. If a HP 

turbine disc that meets these cyclic life 

criteria is currently at shop visit, and if, at 

the effective date of this Airworthiness 

Directive, it has not yet been reinstalled into 

the Combustion Outer Case, then the HP 

turbine disc must be inspected in accordance 

with the requirements of this Airworthiness 

Directive at the current shop visit. 

(ii) For all other HP turbine discs specified 

in the Applicability of this Directive but not 

listed in Table 1 of this AD. 

(A) Inspect the HP turbine disc at next 

shop visit where the HP turbine rotor is 

removed from the Combustor Outer Case and 

the HP turbine disc life is greater than 700 

cycles since new. If a HP turbine disc that 

meets these cyclic life criteria is currently at 

shop visit, and if, at the effective date of this 

Airworthiness Directive, it has not yet been 

reinstalled into the Combustion Outer Case, 

then the HP turbine disc must be inspected 

in accordance with the requirements of this 

Airworthiness Directive at the current shop 

visit. 

(B) If a HP turbine disc has previously 

passed the inspection to Rolls-Royce NMSB 

72–C816 or the focused inspection carried 

out in accordance with Rolls-Royce TS594–

J Overhaul Process Manual Task 70–00–00–

200–223 at greater than 700 cycles since new, 

then either of these inspections meets the 

requirements of this Airworthiness Directive. 

FAA AD Differences 

(f) Wherever the MCAI AD specifies 24 

November 2005, this AD specifies the 

effective date of this AD. 

Other FAA AD Provisions 

(g) Alternative Methods of Compliance 

(AMOCs): The Manager, Engine Certification 

Office, FAA, has the authority to approve 

AMOCs for this AD, if requested using the 

procedures found in 14 CFR 39.19. 

Related Information 

(h) Refer to the Civil Aviation Authority 

Airworthiness Directive G–2006–0002, dated 

February 13, 2006, for related information. 

(i) Contact Jason Yang, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine & Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; e-mail: jason.yang@faa.gov; telephone 

(781) 238–7747; fax (781) 238–7199, for more 

information about this AD. 


jlentini on PROD1PC65 with RULES
46552 Federal Register / Vol. 73, No. 155 / Monday, August 11, 2008 / Rules and Regulations 

Material Incorporated by Reference 

(j) You must use Rolls-Royce Service 

Bulletin RB.211–72–AE718, dated January 

24, 2006, 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 Rolls-Royce plc, PO Box 31, 

Derby, England; telephone: 011 44 1332–

242424; fax: 011 44 1332–249936. 

(3) You may review copies at the FAA, 

New England Region, 12 New England 

Executive Park, Burlington, MA; or 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 Burlington, Massachusetts, on 

July 31, 2008. 

Peter A. White, 

Assistant Manager, Engine and Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. E8–18102 Filed 8–8–08; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2008–0308; Airspace 

Docket No. 08–AEA–19] 

Modification of Class E Airspace; 

Rome, NY 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: This action modifies Class E 

Airspace at Rome, New York to support 

the amendment of the current Terminal 

Visual Flight Rule (VFR) Radar Service 

Area (TRSA) and to allow for a lower 

vectoring altitude known as the 

Minimum Vectoring Altitude (MVA) for 

vectoring of both VFR and Instrument 

Flight Rule (IFR) aircraft around the 

Rome, NY area. This action will 

enhance the safety and airspace 

management around the Griffiss Airport 

area. 

DATES: Effective Date: 0901 UTC, 

November 20, 2008. 

FOR FURTHER INFORMATION CONTACT: 

Daryl Daniels, Airspace Specialist, 

System Support Group, Eastern Service 

Center, Air Traffic Organization, Federal 

Aviation Administration, P.O. Box 

20636, Atlanta, Georgia 30320; 

telephone (404) 305–5581. 

SUPPLEMENTARY INFORMATION: 

History 

On January 1, 2007, the Oneida 

County Airport, Utica, NY was 

permanently closed and operations 

moved to the Griffiss Airfield. The local 

area Terminal VFR Radar Service Area 

(TRSA) is being revised and there is a 

requirement for the base of the TRSA to 

not be below the associated Class E 

airspace. A careful analysis of 

operations determined a need for 

additional Class E airspace extending 

upward from 700 feet above the surface 

of the Earth to enhance the 

management, safety and efficiency of air 

traffic services in the area. This 

modification would satisfy that 

requirement. 

On May 8, 2008, the FAA published 

in the Federal Register a notice of 

proposed rulemaking (NPRM) to 

establish additional Class E airspace at 

Griffiss Airfield (73 FR 26047). 

Interested parties were invited to 

participate in this rulemaking effort by 

submitting written comments on this 

proposal to the FAA. No comments 

objecting to the proposal were received, 

and the rule is being promulgated as 

proposed. 

Designations for Class E Airspace 

designations for airspace areas 

extending upward from 700 feet or more 

above the surface of the Earth are 

published in Paragraph 6005 of FAA 

Order 7400.9R, signed August 15, 2007, 

and effective September 15, 2007, which 

is incorporated by reference in 14 CFR 

71.1. The Class E airspace designation 

listed in this document will be 

published subsequently in the Order. 

The Rule 

This amendment to part 71 of the 

Federal Aviation Regulations (14 CFR 

part 71) modifies Class E airspace at 

Rome, NY. To provide for a lower MVA 

in the Rome, NY, area for VFR and IFR 

operations, it establishes Class E 

airspace upward from 700 feet above the 

surface of the Earth within a 15-mile 

radius of Griffiss Airfield and within a 

26-mile radius of the airport to the 

southeast and south of the airport. 

The FAA has determined that this 

final rule only involves an established 

body of technical regulations for which 

frequent and routine amendments are 

necessary to keep them operationally 

current. It, therefore, (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); and (3) 

does not warrant preparation of a 

Regulatory Evaluation as the anticipated 

impact is so minimal. Since this is a 

routine matter that will only affect air 

traffic procedures and air navigation, it 

is certified that this rule, when 

promulgated, will not have a significant 

economic impact on a substantial 

number of small entities under the 

criteria of the Regulatory Flexibility Act. 

The FAA’s authority to issue rules 

regarding aviation safety is found in 

Title 49 of the United States Code. 

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. 

This rulemaking is promulgated 

under the authority described in subtitle 

VII, part A, subpart I, section 40103. 

Under that section, the FAA is charged 

with prescribing regulations to assign 

the use of airspace necessary to ensure 

the safety of aircraft and the efficient 

use of airspace. This regulation is 

within the scope of that authority as it 

modifies Class E airspace at Rome, NY. 

Lists of Subjects in 14 CFR Part 71 

Airspace, Incorporation by reference, 

Navigation (Air). 

Adoption of the Amendment: 

■ In consideration of the foregoing, the 

Federal Aviation Administration 

amends 14 CFR part 71 as follows: 

PART 71—DESIGNATION OF CLASS A, 

CLASS B, CLASS C, CLASS D, AND 

CLASS E AIRSPACE AREAS; 

AIRWAYS; ROUTES; AND REPORTING 

POINTS 

■ 1. The authority citation for part 71 

will continue to read as follows: 

Authority: 49 U.S.C. 106(g); 40103, 40113, 

40120; E.O. 10854, 24 FR 9565, 3 CFR, 1959–

1963 Comp., p. 389. 

§ 71.1 [Amended] 

■ 2. The incorporation by reference in 

14 CFR 71.1 of Federal Aviation 

Administration Order 7400.9R, Airspace 

Designations and Reporting Points, 

signed August 15, 2007, effective 

September 15, 2007, is amended as 

follows: 

Paragraph 6005 Class E Airspace Areas 

Extending Upward from 700 feet or More 

Above the Surface of the Earth. 

* * * * * 

AEA NY E5 Rome, NY [REVISED] 

Griffiss Airfield, NY 

(Lat. 43°14′02′′ N., long. 75°24′25′′ W.) 

That airspace extending upward from 700 

feet above the surface of the Earth within a 

15-mile radius of Griffiss Airfield and within 

a 26-mile radius of the airport extending 

clockwise from a 125° bearing to a 200° 

bearing from the airport. 

* * * * * 


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