37244 Federal Register / Vol. 76, No. 123 / Monday, June 27, 2011 / Rules and Regulations 

Other FAA AD Provisions 

(o) 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. If sending information directly 

to the International Branch, send it to ATTN: 

Sanjay Ralhan, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, 1601 Lind 

Avenue, SW., Renton, Washington 98057– 

3356; telephone (425) 227–1405; 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. As of the effective date of this AD, 

AMOCs approved previously in accordance 

with AD 2007–06–18, are not approved as 

AMOCs with 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 FAAapproved 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. 

(3) Special Flight Permits: Special flight 

permits may be issued in accordance with 

sections 21.197 and 21.199 of the Federal 

Aviation Regulations (14 CFR 21.197 and 

21.199) with the MLG extended, provided 

that no recycle of the MLG is allowed during 

flight. 

Related Information 

(p) Refer to MCAI EASA 2011–0069, dated 

April 18, 2011; Airbus Service Bulletin 

A320–32–1309, Revision 01, dated June 19, 

2006; and Airbus AOT A320–32A1390, dated 

February 10, 2011; for related information. 

Material Incorporated by Reference 

(q) You must use Airbus All Operators 

Telex A320–32A1390, dated February 10, 

2011; and Airbus Service Bulletin A320–32– 

1309, Revision 01, dated June 19, 2006; 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 

Airbus All Operators Telex A320–32A1390, 

dated February 10, 2011, under 5 U.S.C. 

552(a) and 1 CFR part 51. 

(2) The Director of the Federal Register 

previously approved the incorporation by 

reference of Airbus Service Bulletin A320– 

32–1309, Revision 01, dated June 19, 2006, 

on April 27, 2007 (72 FR 13681, March 23, 

2007). 

(3) For service information identified in 

this AD, contact Airbus, Airworthiness 

Office—EAS, 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.airworth-eas@airbus.com; Internet 

http://www.airbus.com. 

(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 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 June 16, 

2011. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–15683 Filed 6–24–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0546; Directorate 

Identifier 2009–NM–215–AD; Amendment 

39–16659; AD 2011–08–09] 

RIN 2120–AA64 

Airworthiness Directives; Empresa 

Brasileira de Aeronautica S.A. 

(EMBRAER) Model EMB–120, –120ER, 

–120FC, –120QC, and –120RT 

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: 

It has been found that some fuel quantity 

probes may fail during the airplane life 

leading to an erroneous fuel quantity 

indication to the crew. This erroneous 

indication may lead to the airplane being 

operated with less fuel than indicated which 

may lead to an uncommanded in-flight 

shutdown of one or both engines due to fuel 

starvation. 

* * * * * 

We are issuing this AD to require 

actions to correct the unsafe condition 

on these products. 

DATES: This AD becomes effective 

August 1, 2011. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of August 1, 2011. 

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: 

Todd Thompson, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–1175; 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 June 3, 2010 (75 FR 31332). 

That NPRM proposed to correct an 

unsafe condition for the specified 

products. The MCAI states: 

It has been found that some fuel quantity 

probes may fail during the airplane life 

leading to an erroneous fuel quantity 

indication to the crew. This erroneous 

indication may lead to the airplane being 

operated with less fuel than indicated which 

may lead to an uncommanded in-flight 

shutdown of one or both engines due to fuel 

starvation. 

* * * * * 

Required actions include determining 

the real fuel quantity on each tank using 

the dripless measuring sticks, 

comparing the results of the fuel 

quantity measurement with the fuel 

master indicator and repeater indicator 

readings for each tank, and corrective 

actions as applicable. Corrective actions 

include replacing the measuring stick 

and its relevant magnetic float, 

replacing the master fuel quantity 

indicator, and replacing the repeater 

indicator, as applicable; inspecting 

defective tank units for contamination, 

corrosion and integrity of components, 

and repairing or replacing as necessary; 

inspecting system wiring from the 

connector at the wing root to the master 

indicator for condition and continuity; 

and correcting the fuel quantity 

indication system; as applicable. You 


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Federal Register / Vol. 76, No. 123 / Monday, June 27, 2011 / Rules and Regulations 37245 

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 

considered the comments received. 

Request to Change Requirements 

Great Lakes Airlines (Great Lakes) and 

Ameriflight, LLC (Ameriflight), 

requested that we remove the repetitive 

inspections to determine real fuel 

quantity at intervals not to exceed 600 

flight hours or 180 days from the 

proposed AD, and instead require a onetime inspection to determine real fuel 

quantity within 600 flight hours or 180 

days after the effective date of the AD, 

and subsequent inspections to comply 

with the schedule per Task 28–25, 

Operational Check Fuel Quantity 

Indicating System (Measuring Sticks), 

specified in Section 3, Systems and 

Powerplant Inspection Requirements, in 

EMBRAER EMB120 Models 

Maintenance Review Board Report 

(MRBR), MRB–HI–200, Revision 26, 

dated January 5, 2010. Ameriflight 

stated that this inspection has already 

been added to Section 3 of the 

EMBRAER EMB120 Models MRBR 

(Task 28–25), to be done at each ‘‘A’’ 

check, which would occur more 

frequently than what is called for in the 

NPRM. Ameriflight stated that requiring 

the repetitive inspections to comply 

with the MRBR schedule per Task 28– 

25 would ensure that Task 28–25 is 

incorporated into the operators ‘‘A’’ 

check program. 

Great Lakes stated that accomplishing 

the inspection at the next ‘‘A’’ check, 

but no longer than 180 days, would 

accomplish the same intent as the 

proposed AD. Great Lakes stated that 

accomplishing the inspection at the next 

‘‘A’’ check would close the AD once the 

inspection was accomplished. 

We disagree with the commenters’ 

requests to change the requirements. We 

note that the operators could 

accomplish the inspection at the next 

‘‘A’’ check if the ‘‘A’’ checks are more 

frequent than our requirement. 

Operators are always permitted to 

accomplish the requirements of an AD 

at a time earlier than the specified 

compliance time. We have determined 

that this AD must require repetitive 

inspections in order to address the 

identified unsafe condition. We have 

not changed the AD in this regard. 

Request To Move Task 28–25 to the 

Airworthiness Limitations (AWL) 

Section of the MRBR 

Great Lakes requested that we ask 

EMBRAER to move Task 28–25 to the 

AWL section of the EMBRAER EMB120 

Models MRBR. Great Lakes stated that 

this would accomplish the same thing 

as the NPRM and would close the AD 

once the inspection was accomplished. 

We disagree with the request to move 

Task 28–25 to the AWL section of the 

EMBRAER EMB120 Models MRBR. We 

have determined that this AD is the 

vehicle for ensuring, by law, that all 

affected operators perform the necessary 

actions that will address the identified 

unsafe condition. If in the future the 

manufacturer includes this task in a 

different manual or some other 

documentation, the operator may apply 

for an Alternative Method of 

Compliance (AMOC) in accordance with 

paragraph (j) of this AD. We have not 

changed the AD in this regard. 

Request To Refer to Latest Revision of 

the Aircraft Maintenance Manual 

(AMM) 

Great Lakes stated that the operator is 

directed to use EMBRAER EMB120 

Brasilia AMM, MM–120/1459, Revision 

24, dated March 30, 2009, to determine 

the real fuel quantity using dripless 

stick measuring and comparing to the 

fuel quantity master indicator and 

repeater. Great Lakes stated that a later 

revision of the AMM introduced Task 

28–25 to compare the fuel quantity 

indicated on dripless sticks to the fuel 

quantity system, and the task card 

manual was revised to include Task 

Card 28–25. 

We infer that Great Lakes is 

requesting that we refer to EMBRAER 

EMB120 Brasilia AMM, MM–120/1459, 

Revision 27, dated September 28, 2010, 

to determine the real fuel quantity using 

dripless stick measuring and comparing 

to the fuel quantity master indicator and 

repeater. We agree. References have 

been changed in paragraphs (g) and (k), 

and Note 1 of this AD to refer to 

EMBRAER EMB120 Brasilia AMM, 

MM–120/1459, Revision 27, dated 

September 28, 2010. We have also 

revised this AD by adding new 

paragraph (i) to give credit to operators 

that accomplished the applicable 

inspections before the effective date of 

this AD, in accordance with EMBRAER 

EMB120 Brasilia AMM, Revision 24, 

dated March 30, 2009; Revision 25, 

dated September 28, 2009; or Revision 

26, dated March 29, 2010. We have also 

included Task 28–25, Operational 

Check Fuel Quantity Indicating System 

(Measuring Sticks), specified in Section 

3, Systems and Powerplant Inspection 

Requirements, in EMBRAER EMB120 

Models Maintenance Review Board 

Report (MRBR), MRB–HI–200, Revision 

26, dated January 5, 2010, in this AD as 

an alternative to Subjects 28–41–00, 

Fuel Quantity Indicating System, and 

28–42–00, Fuel Quantity Measuring 

Sticks Assembly—Description and 

Operation, of Chapter 28, Fuel, of the 

EMBRAER EMB120 Brasilia AMM, 

MM–120/1459, Revision 27, dated 

September 28, 2010. We have also 

corrected the reference to the chapter 

number in paragraph (g)(3) of this AD. 

Conclusion 

We reviewed the available data, 

including the comments received, 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 

Based on the service information, we 

estimate that this AD will affect about 

77 products of U.S. registry. We also 

estimate that it will take about 2 workhours per product to comply with the 

basic requirements of this AD. The 

average labor rate is $85 per work-hour. 

Based on these figures, we estimate the 

cost of the AD on U.S. operators to be 

$13,090, or $170 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 


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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, 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: 

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: 

2011–08–09 Empresa Brasileira de 

Aeronautica S.A. (EMBRAER): 

Amendment 39–16659. Docket No. 

FAA–2010–0546; Directorate Identifier 

2009–NM–215–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective August 1, 2011. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to all Empresa 

Brasileira de Aeronautica S.A. (EMBRAER) 

Model EMB–120, –120ER, –120FC, –120QC, 

and –120RT airplanes, certificated in any 

category. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 28: Fuel. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

It has been found that some fuel quantity 

probes may fail during the airplane life 

leading to an erroneous fuel quantity 

indication to the crew. This erroneous 

indication may lead to the airplane being 

operated with less fuel than indicated which 

may lead to an uncommanded in-flight 

shutdown of one or both engines due to fuel 

starvation. 

* * * * * 

Required actions include determining the 

real fuel quantity on each tank using the 

dripless measuring sticks, comparing the 

results of the fuel quantity measurement with 

the fuel master indicator and repeater 

indicator readings for each tank, and 

corrective actions as applicable. Corrective 

actions include replacing the measuring stick 

and its relevant magnetic float, replacing the 

master fuel quantity indicator, and replacing 

the repeater indicator, as applicable; 

inspecting defective tank units for 

contamination, corrosion and integrity of 

components, and repairing or replacing as 

necessary; inspecting system wiring from the 

connector at the wing root to the master 

indicator for condition and continuity; and 

correcting the fuel quantity indication 

system; as applicable. 

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 600 flight hours or 180 days 

after the effective date of this AD, whichever 

occurs first, with at least 400 kg (882 lb) of 

fuel in each tank, determine the real fuel 

quantity in each tank using the dripless 

measuring sticks, in accordance with 

Subjects 28–41–00, Fuel Quantity Indicating 

System, and 28–42–00, Fuel Quantity 

Measuring Sticks Assembly—Description and 

Operation, of Chapter 28, Fuel, of the 

EMBRAER EMB120 Brasilia AMM, MM–120/ 

1459, Revision 27, dated September 28, 2010; 

or in accordance with Task 28–25, 

Operational Check Fuel Quantity Indicating 

System (Measuring Sticks), specified in 

Section 3, Systems and Powerplant 

Inspection Requirements, in EMBRAER 

EMB120 Models Maintenance Review Board 

Report (MRBR), MRB–HI–200, Revision 26, 

dated January 5, 2010. Before further flight, 

compare the results of the fuel quantity 

measurement with the fuel master indicator 

and repeater indicator readings for each tank 

and do the applicable action in paragraph 

(g)(1), (g)(2), or (g)(3) of this AD. 

(1) If the difference of the two 

measurements is greater than 60 kg (132 lb) 

on both tanks, before further flight do all 

applicable corrective actions including 

correcting the fuel quantity indication system 

(FQIS), in accordance with Subjects 28–41– 

00, Fuel Quantity Indicating System, and 28– 

42–00, Fuel Quantity Measuring Sticks 

Assembly—Description and Operation, of 

Chapter 28, Fuel, of the EMBRAER EMB120 

Brasilia AMM, MM–120/1459, Revision 27, 

dated September 28, 2010. 

(2) If the difference of the two 

measurements is greater than 60 kg (132 lb) 

on only one tank, and the conditions in 

paragraphs (g)(2)(i), (g)(2)(ii), and (g)(2)(iii) of 

this AD are met, do all applicable corrective 

actions including correcting the FQIS, in 

accordance with Subjects 28–41–00, Fuel 

Quantity Indicating System, and 28–42–00, 

Fuel Quantity Measuring Sticks Assembly— 

Description and Operation, of Chapter 28, 

Fuel, of the EMBRAER EMB120 Brasilia 

AMM, MM–120/1459, Revision 27, dated 

September 28, 2010, within 10 days after 

determining the real fuel quantity as 

specified in paragraph (g) of this AD. 

(i) Before further flight after each refueling, 

the actions required in paragraph (g) of this 

AD are done; 

(ii) Both fuel flow indicators are operating 

properly; and 

(iii) The fuel used or fuel remaining 

function of the totalizer is operating properly. 

(3) If the difference of the two 

measurements is greater than 60 kg (132 lb) 

on only one tank, and any condition in 

paragraph (g)(2)(i), (g)(2)(ii), or (g)(2)(iii) of 

this AD is not met, before further flight do 

all applicable corrective actions including 

correcting the FQIS, in accordance with 

Subjects 28–41–00, Fuel Quantity Indicating 

System, and 28–42–00, Fuel Quantity 

Measuring Sticks Assembly—Description and 

Operation, of Chapter 28, Fuel, of the 

EMBRAER EMB120 Brasilia AMM, MM–120/ 

1459, Revision 27, dated September 28, 2010. 

(h) Repeat the actions required in 

paragraph (g) of this AD thereafter at 

intervals not to exceed 600 flight hours or 

180 days, whichever occurs first. 

Credit for Actions Accomplished in 

Accordance With Previous Service 

Information 

(i) Inspections accomplished before the 

effective date of this AD according to 

Subjects 28–41–00, Fuel Quantity Indicating 

System, and 28–42–00, Fuel Quantity 

Measuring Sticks Assembly—Description and 

Operation, of Chapter 28, Fuel, the 

EMBRAER EMB120 Brasilia Aircraft 

Maintenance Manual, MM–120/1459, 

Revision 24, dated March 30, 2009; Revision 


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25, dated September 28, 2009; and Revision 

26, dated March 29, 2010; are considered 

acceptable for compliance with the 

corresponding actions specified in this AD. 

FAA AD Differences 

Note 1: This AD differs from the MCAI 

and/or service information as follows: 

This AD requires doing all applicable 

corrective actions in accordance with 

Subjects 28–41–00, Fuel Quantity Indicating 

System, and 28–42–00, Fuel Quantity 

Measuring Sticks Assembly—Description and 

Operation, of Chapter 28, Fuel, of the 

EMBRAER EMB120 Brasilia AMM, MM–120/ 

1459, Revision 27, dated September 28, 2010. 

Corrective actions include replacing the 

measuring stick and its relevant magnetic 

float, replacing the master fuel quantity 

indicator, and replacing the repeater 

indicator, as applicable; inspecting defective 

tank units for contamination, corrosion and 

integrity of components, and repairing or 

replacing as necessary; inspecting system 

wiring from the connector at the wing root 

to the master indicator for condition and 

continuity; and correcting the fuel quantity 

indication system; as applicable. The MCAI 

does not provide a corrective action and only 

requires a repetitive functional check of the 

FQIS in accordance with Subject 28–42–00, 

Fuel Quantity Measuring Sticks Assembly— 

Description and Operation, of Chapter 28, 

Fuel, of the EMBRAER EMB120 Brasilia 

Aircraft Maintenance Manual, Revision 24, 

dated March 30, 2009. This difference has 

been coordinated with Ageˆncia Nacional de 

Aviac ̧a ̃o Civil (ANAC). 

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, 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: 

Todd Thompson, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, 1601 Lind 

Avenue, SW., Renton, Washington 98057– 

3356; telephone (425) 227–1175; 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 Brazilian Airworthiness 

Directive 2009–07–04, effective July 13, 2009; 

Task 28–25, Operational Check Fuel Quantity 

Indicating System (Measuring Sticks), 

specified in Section 3, Systems and 

Powerplant Inspection Requirements, in 

EMBRAER EMB120 Models Maintenance 

Review Board Report (MRBR), MRB–HI–200, 

Revision 26, dated January 5, 2010; and 

Subjects 28–41–00, Fuel Quantity Indicating 

System, and 28–42–00, Fuel Quantity 

Measuring Sticks Assembly—Description and 

Operation, of Chapter 28, Fuel, of the 

EMBRAER EMB120 Brasilia AMM, MM–120/ 

1459, Revision 27, dated September 28, 2010; 

for related information. 

Material Incorporated by Reference 

(l) You must use Subjects 28–41–00, Fuel 

Quantity Indicating System, and 28–42–00, 

Fuel Quantity Measuring Sticks Assembly— 

Description and Operation, of Chapter 28, 

Fuel, of the EMBRAER EMB120 Brasilia 

AMM, MM–120/1459, Revision 27, dated 

September 28, 2010; or Task 28–25, 

Operational Check Fuel Quantity Indicating 

System (Measuring Sticks), specified in 

Section 3, Systems and Powerplant 

Inspection Requirements, in EMBRAER 

EMB120 Models Maintenance Review Board 

Report (MRBR), MRB–HI–200, Revision 26, 

dated January 5, 2010; as applicable; to do 

the actions required by this AD, unless the 

AD specifies otherwise. The revision level of 

EMBRAER EMB120 Brasilia Aircraft 

Maintenance Manual, MM–120/1459, 

Revision 27, dated September 28, 2010, is 

indicated only on the title page and Chapter 

28 List of Effective Pages of that document. 

The revision level of EMBRAER EMB120 

Brasilia Maintenance Review Board Report, 

MRB–HI–200, Revision 26, dated January 5, 

2010, is indicated only on the title page of 

that document; pages I–II of the List of 

Effective Pages of that document do not exist. 

(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 Empresa Brasileira de 

Aeronautica S.A. (EMBRAER), Technical 

Publications Section (PC 060), Av. Brigadeiro 

Faria Lima, 2170—Putim—12227–901 Sa ̃o 

Jose dos Campos—SP—BRASIL; telephone 

+55 12 3927–5852 or +55 12 3309–0732; fax 

+55 12 3927–7546; e-mail 

distrib@embraer.com.br; Internet http:// 

www.flyembraer.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 March 

25, 2011. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–15369 Filed 6–24–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0802; Directorate 

Identifier 2009–NM–256–AD; Amendment 

39–16733; AD 2011–13–10] 

RIN 2120–AA64 

Airworthiness Directives; Learjet Inc. 

Model 45 Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are superseding an 

existing airworthiness directive (AD) for 

the products listed above. That AD 

currently requires, for certain airplanes, 

repetitive inspections for chafing and 

other damage of the case drain tube 

from the hydraulic pump case installed 

on the left-hand engine, and corrective 

action if necessary. That AD also 

requires, for all airplanes, repetitive 

inspections for discrepancies of the left 

engine’s nacelle tubing, repetitive 

inspections for evidence of fluid leakage 

within the left engine accessory 

compartment, and corrective actions if 

necessary. This new AD also requires 

replacing the left engine fuel and 

hydraulic tubing and installing a tubing 

support channel, which terminates the 

repetitive inspections required in the 

existing AD. This new AD also removes 

airplanes from the applicability. This 

AD was prompted by reports of chafed 

hydraulic tubes in the left-hand engine. 

We are issuing this AD to prevent 

chafed hydraulic tubes in the left-hand 

engine and consequent hydraulic tube 

failure and uncontrolled loss of 

flammable fluid within the engine 

cowling, which could result in a fire in 

the engine nacelle and loss of control of 

the airplane. 

DATES: This AD is effective August 1, 

2011. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of August 1, 2011. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain other publications listed in 

this AD as of June 17, 2009 (74 FR 

26288, June 2, 2009). 


jlentini on DSK4TPTVN1PROD with RULES