13080 Federal Register / Vol. 76, No. 47 / Thursday, March 10, 2011 / Rules and Regulations 

to the manager of the ACO, send it to the 

attention of the person identified in the 

Related Information section of this AD. 

(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. 

Related Information 

(i) For more information about this AD, 

contact Eric Kinney, Aerospace Engineer, Ft. 

Worth Aircraft Certification Office, FAA, 

2601 Meacham Blvd., Fort Worth, Texas 

76137; telephone: (817) 222–5459; fax: (817) 

222–5960; e-mail: eric.kinney@faa.gov. 

Issued in Kansas City, Missouri, on March 

3, 2011. 

Earl Lawrence, 

Manager, Small Airplane Directorate, Aircraft 

Certification Service. 

[FR Doc. 2011–5296 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–2011–0154; Directorate 

Identifier 2011–NM–016–AD; Amendment 

39–16624; AD 2011–05–14] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. Model DHC–8–400 Series 

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: 

Two cases of the main landing gear (MLG) 

alternate extension system (AES) cam 

mechanism failure were found during line 

checks. The cam mechanism operates the 

cable to open the MLG door and releases the 

MLG uplock in sequence. In the case where 

it is necessary to deploy the MLG using the 

AES, the failure of the MLG AES cam 

mechanism on one side will lead to an unsafe 

asymmetrical landing configuration. 

* * * * * 

The unsafe condition is possible loss of 

control during landing. This AD 

requires actions that are intended to 

address the unsafe condition described 

in the MCAI. 

DATES: This AD becomes effective 

March 25, 2011. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of March 25, 2011. 

We must receive comments on this 

AD by April 25, 2011. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue, SE., Washington, DC 20590. 

• Hand Delivery: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–40, 1200 New Jersey 

Avenue, SE., Washington, DC, between 

9 a.m. and 5 p.m., Monday through 

Friday, except Federal holidays. 

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 in the ADDRESSES

section. Comments will be available in 

the AD docket shortly after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Fabio Buttitta, Aerospace Engineer, 

Airframe and Mechanical Systems 

Branch, ANE–171, FAA, New York 

Aircraft Certification Office, 1600 

Stewart Avenue, Suite 410, Westbury, 

New York 11590; telephone (516) 228– 

7303; fax (516) 794–5531. 

SUPPLEMENTARY INFORMATION: 

Discussion 

The Transport Canada Civil Aviation 

(TCCA), which is the aviation authority 

for Canada, has issued Canadian 

Emergency Airworthiness Directive CF– 

2011–01, dated January 17, 2011 

(referred to after this as ‘‘the MCAI’’), to 

correct an unsafe condition for the 

specified products. The MCAI states: 

Two cases of the main landing gear (MLG) 

alternate extension system (AES) cam 

mechanism failure were found during line 

checks. The cam mechanism operates the 

cable to open the MLG door and releases the 

MLG uplock in sequence. In the case where 

it is necessary to deploy the MLG using the 

AES, the failure of the MLG AES cam 

mechanism on one side will lead to an unsafe 

asymmetrical landing configuration. 

Preliminary investigation indicates that the 

cam mechanism failure may have occurred 

and remained dormant after a previous AES 

operation. The cam mechanism may not have 

fully returned to the normal rested position. 

With the cam mechanism out of normal 

rested position, normal powered landing gear 

door operation could introduce sufficient 

loads to fracture the cam mechanism or 

rupture the door release cable. 

This directive mandates the initial and 

subsequent [detailed] inspections for proper 

operation of the MLG AES cam mechanism, 

and rectify [repair or replace cam assembly 

with new or serviceable cam assembly] as 

necessary. 

The unsafe condition is possible loss of 

control during landing. You may obtain 

further information by examining the 

MCAI in the AD docket. 

Relevant Service Information 

Bombardier has issued Repair 

Drawing 8/4–32–0160, Issue 2, dated 

January 18, 2011. The actions described 

in this service information are intended 

to correct the unsafe condition 

identified in the MCAI. 

FAA’s Determination and Requirements 

of This AD 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to our 

bilateral agreement with the State of 

Design Authority, we have been notified 

of the unsafe condition described in the 

MCAI and service information 

referenced above. We are issuing this 

AD because we evaluated all pertinent 

information and determined the unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

Differences Between the 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 FAA policies. 

Any such differences are highlighted in 

a Note within the AD. 

FAA’s Determination of the Effective 

Date 

An unsafe condition exists that 

requires the immediate adoption of this 


jdjones on DSK8KYBLC1PROD with RULES
Federal Register / Vol. 76, No. 47 / Thursday, March 10, 2011 / Rules and Regulations 13081 

AD. The FAA has found that the risk to 

the flying public justifies waiving notice 

and comment prior to adoption of this 

rule because two cases of the main 

landing gear (MLG) alternate extension 

system (AES) cam mechanism failure 

were found during line checks. The cam 

mechanism operates the cable to open 

the MLG door and releases the MLG 

uplock in sequence. In the case where 

it is necessary to deploy the MLG using 

the AES, the failure of the MLG AES 

cam mechanism on one side will lead to 

an unsafe asymmetrical landing 

configuration. Therefore, we determined 

that notice and opportunity for public 

comment before issuing this AD are 

impracticable and that good cause exists 

for making this amendment effective in 

fewer than 30 days. 

Comments Invited 

This AD is a final rule that involves 

requirements affecting flight safety, and 

we did not precede it by notice and 

opportunity for public comment. We 

invite you to send any written relevant 

data, views, or arguments about this AD. 

Send your comments to an address 

listed under the ADDRESSES section. 

Include ‘‘Docket No. FAA–2011–0154; 

Directorate Identifier 2011–NM–016– 

AD’’ at the beginning of your comments. 

We specifically invite comments on the 

overall regulatory, economic, 

environmental, and energy aspects of 

this AD. We will consider all comments 

received by the closing date and may 

amend this AD because of those 

comments. 

We will post all comments we 

receive, without change, to http:// 

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact we receive 

about this AD. 

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. 

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: 

2011–05–14 Bombardier, Inc.: Amendment 

39–16624. Docket No. FAA–2011–0154; 

Directorate Identifier 2011–NM–016–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective March 25, 2011. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Bombardier, Inc. 

Model DHC–8–400, -401, and -402 airplanes, 

certificated in any category, serial numbers 

4001 and subsequent. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 32: Landing Gear. 

Reason 

(e) The mandatory continued airworthiness 

information (MCAI) states: 

Two cases of the main landing gear (MLG) 

alternate extension system (AES) cam 

mechanism failure were found during line 

checks. The cam mechanism operates the 

cable to open the MLG door and releases the 

MLG uplock in sequence. In the case where 

it is necessary to deploy the MLG using the 

AES, the failure of the MLG AES cam 

mechanism on one side will lead to an unsafe 

asymmetrical landing configuration. 

* * * * * 

The unsafe condition is possible loss of 

control during landing. 

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 50 flight hours or 10 days after 

the effective date of this AD, whichever 

occurs first, do a detailed inspection for 

proper operation of the MLG AES cam 

mechanism, in accordance with paragraph A) 

of Bombardier Repair Drawing 8/4–32–0160, 

Issue 2, dated January 18, 2011. Repeat the 

inspection thereafter at intervals not to 

exceed 50 flight hours or 10 days, whichever 

occurs first. 

(1) If the cam mechanism is found to reset 

to the normal rested position without any 

sticking or binding, it is operating properly. 

(2) If the cam mechanism has not reset to 

its normal rested position, or if any sticking 

or binding is observed, before further flight, 

remove the cam assembly, in accordance 

with paragraph A) of Bombardier Repair 

Drawing 8/4–32–0160, Issue 2, dated January 

18, 2011, and do the actions in paragraph 

(g)(2)(i) or (g)(2)(ii) of this AD. 

(i) Repair the cam mechanism assembly, 

including doing detailed inspections for 

discrepancies (including an inspection to 

determine proper operation, an inspection for 

damage, an inspection for corrosion and 

cadmium coating degradation, and 

inspections to determine dimensions are 

within the limits specified in paragraph B) of 

Bombardier Repair Drawing 8/4–32–0160, 

Issue 2, dated January 18, 2011), in 

accordance with paragraph B) of Bombardier 

Repair Drawing 8/4–32–0160, Issue 2, dated 

January 18, 2011, and install the repaired 

cam assembly in accordance with paragraph 

C) of Bombardier Repair Drawing 8/4–32– 

0160, Issue 2, dated January 18, 2011. 

(ii) Install a new or serviceable cam 

assembly, in accordance with paragraph C) of 

Bombardier Repair Drawing 8/4–32–0160, 

Issue 2, dated January 18, 2011. 

(3) If the cam mechanism is found 

damaged or inoperative during the repair 

specified in paragraph (g)(2)(i) of this AD, or 

if any discrepancies are found and 

Bombardier Repair Drawing 8/4–32–0160, 

Issue 2, dated January 18, 2011, does not 

specify repairs for those discrepancies, or 

repairs specified in paragraph (g)(2)(i) of this 

AD cannot be accomplished: Before further 

flight, repair and reinstall using a method 

approved by the Manager, ANE–170, New 


jdjones on DSK8KYBLC1PROD with RULES
13082 Federal Register / Vol. 76, No. 47 / Thursday, March 10, 2011 / Rules and Regulations 

York Aircraft Certification Office (ACO), 

FAA, or Transport Canada Civil Aviation 

(TCCA) (or its delegated agent), or install new 

or serviceable cam assembly in accordance 

with paragraph C) of Bombardier Repair 

Drawing 8/4–32–0160, Issue 2, dated January 

18, 2011. 

Credit for Actions Accomplished in 

Accordance With Previous Service 

Information 

(h) Actions done before the effective date 

of this AD in accordance with Bombardier 8/ 

4–32–0160, Issue 1, dated January 14, 2011, 

are acceptable for compliance with the 

corresponding requirements of this AD. 

FAA AD Differences 

Note 1: This AD differs from the MCAI 

and/or service information as follows: No 

difference. 

Other FAA AD Provisions 

(i) The following provisions also apply to 

this AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, ANE–170, New York 

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 Attn: 

Program Manager, Continuing Operational 

Safety, FAA, New York ACO, 1600 Stewart 

Avenue, Suite 410, Westbury, New York 

11590; telephone 516–228–7300; fax 516– 

794–5531. 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 

(j) Refer to MCAI Canadian Emergency 

Airworthiness Directive CF–2011–01, dated 

January 17, 2011; and Bombardier Repair 

Drawing 8/4–32–0160, Issue 2, dated January 

18, 2011; for related information. 

Material Incorporated by Reference 

(k) You must use Bombardier Repair 

Drawing 8/4–32–0160, Issue 2, dated January 

18, 2011, to do the actions required by this 

AD, unless the AD specifies otherwise. 

Bombardier Repair Drawing 8/4–32–0160, 

Issue 2, dated January 18, 2011, contains the 

following effective pages: 

Sheet number shown on page Issue level 

shown on page Date shown on page 

1 ............................................................................................................................................................. 2 January 18, 2011 

2, 3, 11 ................................................................................................................................................... 2 None shown * 

4–10 ....................................................................................................................................................... 1 None shown * 

(* The issue date of this document is found only on the first page of the document; no other page of this document contains this information.) 

(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 Bombardier, Inc., Q–Series 

Technical Help Desk, 123 Garratt Boulevard, 

Toronto, Ontario M3K 1Y5, Canada; 

telephone 416–375–4000; fax 416–375–4539; 

e-mail thd.qseries@aero.bombardier.com; 

Internet http://www.bombardier.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 February 

22, 2011. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2011–5085 Filed 3–9–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2011–0009; Airspace 

Docket No. 10–AWP–20] 

RIN 2120–AA66 

Amendment of VOR Federal Airways 

V–1, V–7, V–11 and V–20; Kona, HI 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: This action amends four VHF 

Omnidirectional Range (VOR) Federal 

airways in the vicinity of Kona, HI; V– 

1, V–7, V–11 and V–20 to bring them in 

concert with the FAA’s Aeronautical 

Products. These VOR Federal airways 

are being impacted due to the relocation 

of the Kona VHF Omnidirectional Radio 

Range and Tactical Air Navigation Aids 

(VORTAC). 

DATES: Effective date 0901 UTC, May 5, 

2011. The Director of the Federal 

Register approves this incorporation by 

reference action under 1 CFR part 51, 

subject to the annual revision of FAA 

Order 7400.9 and publication of 

conforming amendments. 

FOR FURTHER INFORMATION CONTACT: Ken 

McElroy, Airspace Regulation and ATC 

Procedures Group, Office of Mission 

Support Services, Federal Aviation 

Administration, 800 Independence 

Avenue, SW., Washington, DC 20591; 

telephone: (202) 267–8783. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA has relocated the Kona 

VORTAC current location 3.92 nautical 

miles north northwest to the Kona 

International Airport property. As a part 

of this effort, the FAA realigned V– 1, 

V–7, V–11 and V–20, and changed the 

VORTAC identification from IAI to 

KOA. 

The Rule 

This action amends Title 14 Code of 

Federal Regulations (14 CFR) part 71 by 

modifying Hawaiian VOR Federal 

Airways V–1, V–7, V–11 and V–20. 

Specifically, this action realigns the 

airways north northwest of the current 

VORTAC site to reflect the new radials 

of the relocated Kona VORTAC (KOA) 

onto Kona International Keahole Airport 

property Kailua-Kona, HI. This will 

enhance the management of aircraft 

operations over Hawaii. This action 

does not affect the boundaries, altitudes, 

or operating requirements of the 

airspace. The FAA’s Aeronautical 

Products has correctly charted the 

airspace, therefore, notice and public 

comment under 5 U.S.C. 553(b) are 

unnecessary. 


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