27668 Federal Register / Vol. 75, No. 95 / Tuesday, May 18, 2010 / Proposed Rules 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0516; Directorate 

Identifier 2009–NM–251–AD] 

RIN 2120–AA64 

Airworthiness Directives; Fokker 

Services B.V. Model F.28 Mark 0070 

and 0100 Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for the 

products listed above. This proposed 

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: 

When preparing for landing, the flight crew 

of a F28 Mark 0100 (Fokker 100) aeroplane 

observed a main landing gear (MLG) unsafe 

indication after landing gear down selection. 

* * * [T]he right (RH) MLG was partly 

extended and the left (LH) MLG door was 

open but without the MLG being extended. 

* * * 

Subsequent investigation revealed that the 

cause of the MLG extension problem was the 

(partially) blocked hydraulic return line from 

the MLG selector valve by pieces of hard 

plastic. These were identified as parts of the 

poppet seat of PBSOV [parking brake shut-off 

valve] Part Number (P/N) 70379. * * * 

This condition, if not detected and 

corrected, could lead to further events where 

the MLG fails to extend, possibly resulting in 

loss of control of the aeroplane during 

landing. 

* * * * * 

The proposed AD would require actions 

that are intended to address the unsafe 

condition described in the MCAI. 

DATES: We must receive comments on 

this proposed AD by July 2, 2010. 

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. 

For service information identified in 

this proposed AD, contact Fokker 

Services B.V., Technical Services Dept., 

P.O. Box 231, 2150 AE Nieuw-Vennep, 

the Netherlands; telephone +31 (0)252– 

627–350; fax +31 (0)252–627–211; email technicalservices.fokkerservices@

stork.com; Internet http://

www.myfokkerfleet.com. You may 

review copies of the referenced 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. 

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 proposed 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: Tom 

Rodriguez, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–1137; fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposed AD. Send your comments 

to an address listed under the 

ADDRESSES section. Include ‘‘Docket No. 

FAA–2010–0516; Directorate Identifier 

2009–NM–251–AD’’ at the beginning of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this proposed AD. We will 

consider all comments received by the 

closing date and may amend this 

proposed AD based on those comments. 

We have lengthened the 30-day 

comment period for proposed ADs that 

address MCAI originated by aviation 

authorities of other countries to provide 

adequate time for interested parties to 

submit comments. The comment period 

for these proposed ADs is now typically 

45 days, which is consistent with the 

comment period for domestic transport 

ADs. 

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 proposed AD. 

Discussion 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued EASA 

Airworthiness Directive 2009–0220, 

dated October 14, 2009 (referred to after 

this as ‘‘the MCAI’’), to correct an unsafe 

condition for the specified products. 

The MCAI states: 

When preparing for landing, the flight crew 

of a F28 Mark 0100 (Fokker 100) aeroplane 

observed a main landing gear (MLG) unsafe 

indication after landing gear down selection. 

The approach was aborted and the landing 

gear unsafe procedure was accomplished. As 

this did not produce the desired effect, a low 

pass was performed and the control tower 

confirmed that the right (RH) MLG was partly 

extended and the left (LH) MLG door was 

open but without the MLG being extended. 

Eventually the aeroplane landed with partly 

extended landing gear, without resulting in 

serious injuries to the occupants. 

Subsequent investigation revealed that the 

cause of the MLG extension problem was the 

(partially) blocked hydraulic return line from 

the MLG selector valve by pieces of hard 

plastic. These were identified as parts of the 

poppet seat of PBSOV [parking brake shut-off 

valve] Part Number (P/N) 70379. The PBSOV 

installed on the incident aeroplane was a 

modified version of P/N 70379, identified by 

suffix ‘‘A’’ behind the serial number on the 

identification plate. This modification was 

introduced by Eaton, the valve manufacturer, 

with Eaton Service Bulletin (SB) 70379–32– 

01 and includes replacement of the original 

poppet with clamped hard plastic seat by an 

improved poppet assembly with screwed-on 

seat. When the affected valve was opened, it 

was confirmed that it contained the 

improved poppet assembly. The poppet seat 

fragments found in the return system 

therefore originated from a previously 

installed (pre SB 70379–32–01) P/N 70379 

PBSOV and must have been present in the 

return/pressure line prior to installation of 

the modified PBSOV. 

This condition, if not detected and 

corrected, could lead to further events where 

the MLG fails to extend, possibly resulting in 

loss of control of the aeroplane during 

landing. 

For the reasons described above, this AD 

requires the [detailed] inspection of the 

associated hydraulic lines, irrespective what 

type PBSOV is installed, removal of 

contamination in the system, if any, and 

replacement of each unmodified PBSOV with 

a modified unit. This AD also prohibits, after 

installation of a modified PBSOV on an 

aeroplane, re-installation of an unmodified 

PBSOV on that aeroplane. 

You may obtain further information by 

examining the MCAI in the AD docket. 

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Federal Register / Vol. 75, No. 95 / Tuesday, May 18, 2010 / Proposed Rules 27669 

Relevant Service Information 

Fokker Services B.V. has issued 

Service Bulletin SBF100–32–159, dated 

October 6, 2009. Eaton Aerospace has 

issued Service Bulletin 70379–32–01, 

dated September 15, 2001. 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 Proposed 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 proposing this 

AD because we evaluated all pertinent 

information and determined an unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

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 proposed 

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 

proposed AD. 

Costs of Compliance 

Based on the service information, we 

estimate that this proposed AD would 

affect about 6 products of U.S. registry. 

We also estimate that it would take 

about 4 work-hours per product to 

comply with the basic requirements of 

this proposed AD. The average labor 

rate is $85 per work-hour. Based on 

these figures, we estimate the cost of the 

proposed AD on U.S. operators to be 

$2,040, or $340 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 

We determined that this proposed AD 

would not have federalism implications 

under Executive Order 13132. This 

proposed AD would 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 proposed regulation: 

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 proposed 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. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 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: 

Fokker Services B.V.: Docket No. FAA– 

2010–0516; Directorate Identifier 2009– 

NM–251–AD. 

Comments Due Date 

(a) We must receive comments by July 2, 

2010. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Fokker Services B.V. 

Model F.28 Mark 0070 and 0100 airplanes, 

certificated in any category, all serial 

numbers. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 32: Landing Gear. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

When preparing for landing, the flight crew 

of a F28 Mark 0100 (Fokker 100) aeroplane 

observed a main landing gear (MLG) unsafe 

indication after landing gear down selection. 

* * * [T]he right (RH) MLG was partly 

extended and the left (LH) MLG door was 

open but without the MLG being extended. 

* * * 

Subsequent investigation revealed that the 

cause of the MLG extension problem was the 

(partially) blocked hydraulic return line from 

the MLG selector valve by pieces of hard 

plastic. These were identified as parts of the 

poppet seat of PBSOV [parking brake shut-off 

valve] Part Number (P/N) 70379. * * * 

This condition, if not detected and 

corrected, could lead to further events where 

the MLG fails to extend, possibly resulting in 

loss of control of the aeroplane 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) Do the following actions. 

(1) Within 30 days after the effective date 

of this AD, do a detailed inspection of the 

hydraulic lines associated with the PBSOV 

for contamination in the system (the presence 

of pieces of material from the poppet seat of 

an unmodified PBSOV having P/N 70379). If 

any contamination is found, before further 

flight, remove the contamination, in 

accordance with Part 1 of the 

Accomplishment Instructions of Fokker 

Service Bulletin SBF100–32–159, dated 

October 6, 2009. 

(2) Within 18 months after the effective 

date of this AD, re-inspect the hydraulic lines 

and do all applicable corrective actions as 

required by paragraph (g)(1) of this AD, and 

replace the unmodified PBSOV having P/N 

70379, with a modified PBSOV having P/N 

70379 having the suffix ‘‘A’’ behind the serial 

number on the identification plate, in 

accordance with Part 2 of the 

Accomplishment Instructions of Fokker 

Service Bulletin SBF100–32–159, dated 

October 6, 2009. 

(3) After accomplishing paragraph (g)(2) of 

this AD, do not install any unmodified 

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27670 Federal Register / Vol. 75, No. 95 / Tuesday, May 18, 2010 / Proposed Rules 

PBSOV having P/N 70379, unless the PBSOV 

having P/N 70379 has been modified, having 

the suffix ‘‘A’’ behind the serial number on 

the identification plate, in accordance with 

the Accomplishment Instructions of Eaton 

Service Bulletin 70379–32–01, dated 

September 15, 2001. 

FAA AD Differences 

Note 1: This AD differs from the MCAI 

and/or service information as follows: No 

differences. 

Other FAA AD Provisions 

(h) 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. 

Send information to ATTN: Tom Rodriguez, 

Aerospace Engineer, International Branch, 

ANM–116, Transport Airplane Directorate, 

FAA, 1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone (425) 

227–1137; fax (425) 227–1149. 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. 

(3) Reporting Requirements: For any 

reporting requirement in this AD, under the 

provisions of the Paperwork Reduction Act 

(44 U.S.C. 3501 et seq.), the Office of 

Management and Budget (OMB) has 

approved the information collection 

requirements and has assigned OMB Control 

Number 2120–0056. 

Related Information 

(i) Refer to MCAI European Aviation Safety 

Agency Airworthiness Directive 2009–0220, 

dated October 14, 2009; Fokker Service 

Bulletin SBF100–32–159, dated October 6, 

2009; and Eaton Service Bulletin 70379–32– 

01, dated September 15, 2001; for related 

information. 

Issued in Renton, Washington, on May 7, 

2010. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2010–11890 Filed 5–17–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2010–0386; Airspace 

Docket No. 10–AWA–1] 

RIN 2120–AA66 

Proposed Revocation of Class C 

Airspace, Proposed Establishment of 

Class D Airspace, and Proposed 

Modification of Class E Airspace; 

Columbus, GA 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

revoke the Columbus, GA, Class C 

airspace area; establish Class D airspace 

area to replace the Class C airspace area; 

and amend the existing Class E surface 

area and 700-foot Class E airspace at 

Columbus, GA. The FAA is proposing 

this action because Columbus 

Metropolitan Airport no longer meets 

the criteria required to qualify for a 

Class C airspace designation. 

Reconfiguring the area would enhance 

safety and facilitate more efficient use of 

airspace within the National Airspace 

System. 

DATES: Comments must be received on 

or before July 19, 2010. 

ADDRESSES: Send comments on this 

proposal to the U.S. Department of 

Transportation, Docket Operations, M– 

30, 1200 New Jersey Avenue, SE., West 

Building Ground Floor, Room W12–140, 

Washington, DC 20590–0001; telephone: 

(202) 366–9826. You must identify FAA 

Docket No. FAA–2010–0386 and 

Airspace Docket No. 10–AWA–1, at the 

beginning of your comments. You may 

also submit comments through the 

Internet at http://www.regulations.gov 

FOR FURTHER INFORMATION CONTACT: Paul 

Gallant, Airspace and Rules Group, 

Office of System Operations Airspace 

and AIM, Federal Aviation 

Administration, 800 Independence 

Avenue, SW., Washington, DC 20591; 

telephone: (202) 267–8783. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

Interested parties are invited to 

participate in this proposed rulemaking 

by submitting such written data, views, 

or arguments as they may desire. 

Comments that provide the factual basis 

supporting the views and suggestions 

presented are particularly helpful in 

developing reasoned regulatory 

decisions on the proposal. Comments 

are specifically invited on the overall 

regulatory, aeronautical, economic, 

environmental, and energy-related 

aspects of the proposal. 

Communications should identify both 

docket numbers (FAA Docket No. FAA– 

2010–0386 and Airspace Docket No. 10– 

AWA–1) and be submitted in triplicate 

to the Docket Management Facility (see 

ADDRESSES section for address and 

phone number). You may also submit 

comments through the Internet at 

http://www.regulations.gov 

Commenters wishing the FAA to 

acknowledge receipt of their comments 

on this action must submit with those 

comments a self-addressed, stamped 

postcard on which the following 

statement is made: ‘‘Comments to 

Docket Nos. FAA–2010–0386 and 

Airspace Docket No. 10–AWA–1.’’ The 

postcard will be date/time stamped and 

returned to the commenter. 

All communications received on or 

before the specified closing date for 

comments will be considered before 

taking action on the proposed rule. The 

proposal contained in this action may 

be changed in light of comments 

received. All comments submitted will 

be available for examination in the 

public docket both before and after the 

closing date for comments. A report 

summarizing each substantive public 

contact with FAA personnel concerned 

with this rulemaking will be filed in the 

docket. 

Availability of NPRMs 

An electronic copy of this document 

may be downloaded through the 

Internet at http://www.regulations.gov. 

Recently published rulemaking 

documents can also be accessed through 

the FAA’s web page at http:// 

www.faa.gov/regulations_policies/ 

rulemaking/recently_published/. 

You may review the public docket 

containing the proposal, any comments 

received and any final disposition in 

person in the Dockets Office (see 

ADDRESSES section for address and 

phone number) between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. An informal docket 

may also be examined during normal 

business hours at the office of the 

Eastern Service Center, Federal Aviation 

Administration, Room 210, 1701 

Columbia Ave., College Park, GA 30337. 

Persons interested in being placed on 

a mailing list for future NPRMs should 

contact the FAA’s Office of Rulemaking, 

(202) 267–9677, for a copy of Advisory 

Circular No. 11–2A, Notice of Proposed 

Rulemaking Distribution System, which 

describes the application procedure. 

mstockstill on DSKH9S0YB1PROD with PROPOSALS