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contains regulatory documents having general

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Rules and Regulations Federal Register

50403 

Vol. 76, No. 157 

Monday, August 15, 2011 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0470; Directorate 

Identifier 2010–NM–190–AD]; Amendment 

39–16768; AD 2011–17–04] 

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. 

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: 

One in-service incident has been reported 

on [a] DHC–8 Series 400 aeroplane in which 

the right hand main landing gear (MLG) 

failed to extend using the alternate gear 

extension system. * * * Failure of [the] MLG 

to extend and lock could adversely affect the 

safe landing of the aeroplane. 

* * * * * 

We are issuing this AD to require 

actions to correct the unsafe condition 

on these products. 

DATES: This AD becomes effective 

September 19, 2011. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of September 19, 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: 

Fabio Buttitta, Aerospace Engineer, 

Airframe and Mechanical Systems 

Branch, ANE–171, FAA, New York 

Aircraft Certification Office (ACO), 1600 

Stewart Avenue, Suite 410, Westbury, 

New York 11590; telephone (516) 228– 

7303; fax (516) 794–5531. 

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 May 12, 2011 (76 FR 27615). 

That NPRM proposed to correct an 

unsafe condition for the specified 

products. The MCAI states: 

One in-service incident has been reported 

on [a] DHC–8 Series 400 aeroplane in which 

the right hand main landing gear (MLG) 

failed to extend using the alternate gear 

extension system. Investigation determined 

that the tread on the outboard tire was 

catching on the bumper plate located on the 

outboard MLG door that prevented the MLG 

door to open following an extension attempt 

via the alternate extension system. Failure of 

[the] MLG to extend and lock could adversely 

affect the safe landing of the aeroplane. 

To prevent the potential jam condition 

between the bumper plate and the MLG tires, 

Bombardier Aerospace has developed a 

modification to trim the edge of the bumper 

plate to eliminate the possibility of 

interference [Bombardier Modsum 

4–113645]. 

The Modsum includes performing a 

detailed visual inspection for damage or 

cracks of the bumper plate and base 

fitting and replacing any damaged or 

cracked part with a new part, if 

necessary. 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 or 

on the determination of the cost to the 

public. 

Conclusion 

We reviewed the available data and 

determined that air safety and the 

public interest require adopting the AD 

as proposed. 

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 

65 products of U.S. registry. We also 

estimate that it will take about 8 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 $479 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 costs. 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 the AD 

on U.S. operators to be $75,335, or 

$1,159 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 


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50404 Federal Register / Vol. 76, No. 157 / Monday, August 15, 2011 / Rules and Regulations 

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: 

2011–17–04 Bombardier, Inc.: Amendment 

39–16768. Docket No. FAA–2011–0470; 

Directorate Identifier 2010–NM–190–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective September 19, 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, having 

serial numbers 4001 through 4247 inclusive. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 32: Landing Gear. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

One in-service incident has been reported 

on [a] DHC–8 Series 400 aeroplane in which 

the right hand main landing gear (MLG) 

failed to extend using the alternate gear 

extension system. * * * Failure of [the] MLG 

to extend and lock could adversely affect the 

safe landing of the aeroplane. 

* * * * * 

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 2,000 flight hours after the 

effective date of this AD: Incorporate 

Bombardier Modsum 4–113645, including 

performing a detailed visual inspection for 

damage or cracks of the bumper plate and 

base fitting and replacing any damaged or 

cracked part, in accordance with the 

Accomplishment Instructions of Bombardier 

Service Bulletin 84–32–74, Revision A, dated 

May 17, 2010. Do all applicable replacements 

before further flight. 

(h) For airplanes on which a bumper plate 

having part number 85424082–101 or 

85424082–103 is installed that has been 

reworked in accordance with Bombardier 

Repair Drawing 8/4–54–553: Within 1,000 

flight hours after the effective date of this AD, 

reidentify the bumper plate, in accordance 

with paragraph 3.B., step (8) of the 

Accomplishment Instructions of Bombardier 

Service Bulletin 84–32–74, Revision A, dated 

May 17, 2010. 

Note 1: Bombardier Service Bulletin 84– 

32–74, Revision A, dated May 17, 2010, 

includes an operational check of the alternate 

extension system of the MLG. If the check 

fails, guidance on doing corrective actions 

can be found in the Bombardier Q400 Dash 

8 Aircraft Maintenance Manual. 

Credit for Actions Accomplished in 

Accordance With Previous Service 

Information 

(i) Incorporation of Bombardier Modsum 

4–113645 before the effective date of this AD 

in accordance with Bombardier Service 

Bulletin 84–32–74, dated December 23, 2009, 

is considered acceptable for compliance with 

the modification in paragraph (h) of this AD, 

provided the action in paragraph (h) of this 

AD is done within the compliance time 

specified in paragraph (h) of this AD. 

FAA AD Differences 

Note 2: This AD differs from the MCAI 

and/or service information as follows: No 

differences. 

Other FAA AD Provisions 

(j) The following provisions also apply to 

this AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York Aircraft 

Certification Office (ACO), ANE–170, 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 New York 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 on any airplane to which 

the AMOC applies, notify your principal 

maintenance inspector (PMI) or principal 

avionics inspector (PAI), as appropriate, or 

lacking a principal inspector, your local 

Flight Standards 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 Canadian Airworthiness 

Directive CF–2010–23, dated July 21, 2010; 

and Bombardier Service Bulletin 84–32–74, 

Revision A, dated May 17, 2010; for related 

information. 

Material Incorporated by Reference 

(l) You must use Bombardier Service 

Bulletin 84–32–74, Revision A, dated May 

17, 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 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 


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Federal Register / Vol. 76, No. 157 / Monday, August 15, 2011 / Rules and Regulations 50405 

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 July 29, 

2011. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–20141 Filed 8–12–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0530 Directorate 

Identifier 2011–CE–012–AD; Amendment 

39–16770; AD 2011–17–06] 

RIN 2120–AA64 

Airworthiness Directives; SOCATA 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for 

SOCATA Model TBM 700 airplanes. 

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: 

A TBM 700 operator reported a case of 

elevator trim tab actuator jamming once the 

trim tab arrived to stop. 

The investigations conducted by the trim 

tab actuator manufacturer have shown that 

there was a discrepancy with PRECILEC 

manufacturing process of elevator trim tab 

actuator which caused this event. It has been 

determined as well that this discrepancy is 

limited to a batch of Serial Numbers (S/N). 

If not detected and corrected, a jammed 

trim tab could lead to unusual control forces, 

resulting in lower controllability, particularly 

if combined with adverse flight conditions at 

landing. 

We are issuing this AD to require 

actions to correct the unsafe condition 

on these products. 

DATES: This AD becomes effective 

September 19, 2011. 

On September 19, 2011, the Director 

of the Federal Register approved the 

incorporation by reference of certain 

publications listed in this AD. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

www.regulations.gov or in person at 

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 service information identified in 

this AD, contact SOCATA—Direction 

des Services—65921 Tarbes Cedex 9— 

France; telephone +33 (0) 62 41 7300, 

fax +33 (0) 62 41 76 54, or for North 

America: SOCATA NORTH AMERICA, 

7501 South Airport Road, North Perry 

Airport (HWO), Pembroke Pines, Florida 

33023; telephone: (954) 893–1400; fax: 

(954) 964–4141; e-mail: 

mysocata@socata.daher.com; Internet: 

http://mysocata.com. You may review 

copies of the referenced service 

information at the FAA, Small Airplane 

Directorate, 901 Locust, Kansas City, 

Missouri 64106. For information on the 

availability of this material at the FAA, 

call (816) 329–4148. 

FOR FURTHER INFORMATION CONTACT: 

Albert Mercado, Aerospace Engineer, 

FAA, Small Airplane Directorate, 901 

Locust, Room 301, Kansas City, 

Missouri 64106; telephone: (816) 329– 

4119; fax: (816) 329–4090; e-mail: 

albert.mercado@faa.gov. 

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 May 25, 2011 (76 FR 30295). 

That NPRM proposed to correct an 

unsafe condition for the specified 

products. The MCAI states: 

A TBM 700 operator reported a case of 

elevator trim tab actuator jamming once the 

trim tab arrived to stop. 

The investigations conducted by the trim 

tab actuator manufacturer have shown that 

there was a discrepancy with PRECILEC 

manufacturing process of elevator trim tab 

actuator which caused this event. It has been 

determined as well that this discrepancy is 

limited to a batch of Serial Numbers (S/N). 

If not detected and corrected, a jammed 

trim tab could lead to unusual control forces, 

resulting in lower controllability, particularly 

if combined with adverse flight conditions at 

landing. 

For the reasons described above, this AD 

requires the inspection of the elevators trim 

tab actuator P/N 6071017251 for 

identification of S/N and, in case of findings, 

the replacement of the affected ones with 

serviceable units. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

received no comments on the NPRM or 

on the determination of the cost to the 

public. 

Conclusion 

We reviewed the available data and 

determined that air safety and the 

public interest require adopting the AD 

as proposed. 

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 FAA policies. 

Any such differences are highlighted in 

a NOTE within the AD. 

Costs of Compliance 

We estimate that this AD will affect 

377 products of U.S. registry. We also 

estimate that it would take about 1 

work-hour per product to comply with 

the basic requirements of this AD. The 

average labor rate is $85 per work-hour. 

Required parts would cost about $0 per 

product. 

Based on these figures, we estimate 

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

be $32,045, or $85 per product. 

In addition, we estimate that any 

necessary follow-on actions would take 

about 7 work-hours and require parts 

costing $0, for a cost of $595 per 

product. We have no way of 

determining the number of products 

that may need these actions. 

According to the manufacturer, some 

of the costs of this AD may be covered 

under warranty, thereby reducing the 

cost impact on affected individuals. We 

do not control warranty coverage for 

affected individuals. As a result, we 

have included all costs in our cost 

estimate. 

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 


srobinson on DSK4SPTVN1PROD with RULES