13074 Federal Register / Vol. 76, No. 47 / Thursday, March 10, 2011 / Rules and Regulations 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–1156; Directorate 

Identifier 2010–NM–128–AD; Amendment 

39–16622; AD 2011–05–12] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Model 777–200, –200LR, 

–300, and –300ER Series Airplanes 

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 requires 

repetitive detailed inspections for 

disbonding and tearing and 

measurements for wear of the internal 

diameter (ID) of the Karon-lined 

bushings of the bulkhead support 

jackscrew fitting and of the jackscrew 

fitting of the horizontal stabilizer; and 

reinstallation of the horizontal stabilizer 

trim actuator (HSTA) after inspection 

and measurement; and if necessary, 

replacement of the bushings with new 

bushings and all applicable related 

investigative and corrective actions. 

This AD was prompted by a report 

indicating that a Karon-lined bushing 

with the liner broken into five pieces 

was found during a scheduled 

inspection of the HSTA components; 

the broken liner had worn and 

disbonded from the bushing. We are 

issuing this AD to detect and correct 

discrepancies of the HSTA attachment 

locations, which could result in reduced 

structural integrity of the horizontal 

stabilizer and consequent loss of 

controllability of the airplane. 

DATES: This AD is effective April 14, 

2011. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of April 14, 2011. 

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; e-mail 

me.boecom@boeing.com; 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 

98057–3356. 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: 

Duong Tran, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 917–6452; fax (425) 917–6590; 

e-mail duong.tran@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an airworthiness 

directive (AD) that would apply to the 

specified products. That NPRM 

published in the Federal Register on 

December 1, 2010 (75 FR 74668, January 

18, 2011). That NPRM proposed to 

require repetitive detailed inspections 

for disbonding and tearing and 

measurements for wear of the internal 

diameter (ID) of the Karon-lined 

bushings of the bulkhead support 

jackscrew fitting and of the jackscrew 

fitting of the horizontal stabilizer; 

repetitive installations of the horizontal 

stabilizer trim actuator (HSTA); and if 

necessary, replacement of the bushings 

with new bushings and all applicable 

related investigative and corrective 

actions. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

have considered the comments received. 

Boeing and American Airlines support 

the NPRM. 

Clarification of AD Summary 

We determined that the requirement 

specified in the Summary section of the 

NPRM for ‘‘repetitive installations of the 

HSTA’’ should be more clearly 

described as ‘‘reinstallation of the HSTA 

after inspection and measurement.’’ The 

Summary section of this AD has been 

revised accordingly. No change has been 

made to other sections of this AD in this 

regard. 

Conclusion 

We reviewed the relevant data, 

considered the comments received, and 

determined that air safety and the 

public interest require adopting the AD 

as proposed. 

Costs of Compliance 

We estimate that this AD affects 145 

airplanes of U.S. registry. We also 

estimate that it will take about 7 workhours per product to comply with the 

detailed inspection, measurement, and 

installation in this AD. The average 

labor rate is $85 per work-hour. Based 

on these figures, we estimate the cost of 

this AD to the U.S. operators to be 

$86,275, or $595 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 

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 


jdjones on DSK8KYBLC1PROD with RULES
Federal Register / Vol. 76, No. 47 / Thursday, March 10, 2011 / Rules and Regulations 13075 

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): 

2011–05–12 The Boeing Company: 

Amendment 39–16622; Docket No. 

FAA–2010–1156; Directorate Identifier 

2010–NM–128–AD. 

Effective Date 

(a) This AD is effective April 14, 2011. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to The Boeing 

Company Model 777–200, –200LR, –300, and 

–300ER series airplanes, certificated in any 

category, as identified in Boeing Alert 

Service Bulletin 777–55A0017, dated May 

20, 2010. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 55: Stabilizers. 

Unsafe Condition 

(e) This AD results from a report indicating 

that a Karon-lined bushing with the liner 

broken into five pieces was found during a 

scheduled inspection of the horizontal 

stabilizer trim actuator (HSTA) components; 

the broken liner had worn and disbonded 

from the bushing. The Federal Aviation 

Administration is issuing this AD to detect 

and correct discrepancies of the HSTA 

attachment locations, which could result in 

reduced structural integrity of the horizontal 

stabilizer and consequent loss of 

controllability of the airplane. 

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. 

Inspection/Related Investigative and 

Corrective Actions 

(g) Before the accumulation of 32,000 total 

flight cycles, or within 24 months after the 

effective date of this AD, whichever occurs 

later: Do a detailed inspection for disbonding 

and tearing, and a measurement for wear of 

the internal diameter (ID) of the Karon-lined 

bushings of the bulkhead support jackscrew 

fitting and of the jackscrew fitting of the 

horizontal stabilizer; replace bushings with 

new bushings, as applicable; do all 

applicable related investigative and 

corrective actions; and install either a known 

serviceable or overhauled HSTA. Do the 

actions in accordance with the 

Accomplishment Instructions of Boeing Alert 

Service Bulletin 777–55A0017, dated May 

20, 2010, except as provided by paragraph (h) 

of this AD. Do all applicable related 

investigative and corrective actions before 

further flight. Repeat the actions required by 

this paragraph thereafter at intervals not to 

exceed 16,000 flight cycles. 

Exceptions to Corrective Actions 

(h) If, during any inspection or 

measurement required by this AD, any 

damage is found, or the inner diameter is 

greater than the allowable hole diameter, and 

Part 1, Step 3.B.2.a.(1)(a)1)a) of the 

Accomplishment Instructions of Boeing Alert 

Service Bulletin 777–55A0017, dated May 

20, 2010, specifies to contact Boeing for 

appropriate action: Before further flight, do 

the repair using a method approved in 

accordance with the procedures specified in 

paragraph (i) of this AD. 

Alternative Methods of Compliance 

(AMOCs) 

(i)(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 e-mailed 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. 

Related Information 

(j) For more information about this AD, 

contact Duong Tran, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, Seattle 

ACO, 1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone (425) 

917–6452; fax (425) 917–6590; email 

duong.tran@faa.gov. 

Material Incorporated by Reference 

(k) You must use Boeing Alert Service 

Bulletin 777–55A0017, dated May 20, 2010, 

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 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; e-mail me.boecom@boeing.com; 

Internet https://www.myboeingfleet.com. 

(3) You may review copies of the service 

information incorporated by reference at the 

FAA, Transport Airplane Directorate, 1601 

Lind Avenue, SW., Renton, Washington; or at 

the National Archives and Records 

Administration (NARA). 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 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, February 

22, 2011. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2011–5086 Filed 3–9–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0156; Directorate 

Identifier 2010–NM–231–AD; Amendment 

39–16628; AD 2011–06–04] 

RIN 2120–AA64 

Airworthiness Directives; Airbus Model 

A330–243F Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule; request for 

comments. 

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: 

During a recent in-service event the flight 

crew of a Trent 700 powered A330 aircraft 


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