Federal Register / Vol. 75, No. 123 / Monday, June 28, 2010 / Proposed Rules 36581 

You can find our regulatory 

evaluation and the estimated costs of 

compliance 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: 

McDonnell Douglas Corporation: Docket No. 

FAA–2010–0553; Directorate Identifier 

2010–NM–070–AD. 

Comments Due Date 

(a) We must receive comments by August 

12, 2010. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to McDonnell Douglas 

Corporation Model DC–10–30, DC–10–30F, 

DC–10–30F (KC–10A and KDC–10), DC–10– 

40, DC10–40F, and MD–10–30F airplanes, 

certificated in any category; as specified in 

Boeing Service Bulletin DC10–28–244, dated 

February 25, 2010. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 28: Fuel. 

Unsafe Condition 

(e) This AD results from fuel system 

reviews conducted by the manufacturer. The 

Federal Aviation Administration is issuing 

this AD to reduce the potential of ignition 

sources inside fuel tanks, which, in 

combination with flammable fuel vapors, 

could result in fuel tank explosions and 

consequent loss of the airplane. 

Compliance 

(f) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified, unless the 

actions have already been done. 

Actions 

(g) Within 60 months after the effective 

date of this AD do the actions specified in 

paragraphs (g)(1), (g)(2), (g)(3), and (g)(4) of 

this AD, as applicable, and do all applicable 

corrective actions, in accordance with the 

Accomplishment Instructions of Boeing 

Service Bulletin DC10–28–244, dated 

February 25, 2010, except as required by 

paragraph (h) of this AD. Do all applicable 

corrective actions before further flight. 

(1) Do a one-time general visual inspection 

of the wire bundles to determine if wires 

touch the upper surface of the center upper 

auxiliary fuel tank, and mark the location as 

applicable. 

(2) Do a one-time detailed inspection for 

splices and damage of all wire bundles 

between Stations Y=1219.000 and 

Y=1381.000 between X=¥40 to X=¥90 (right 

side) and X=15 to X=85 (left side) above the 

center upper auxiliary fuel tank. 

(3) Do a one-time detailed inspection for 

damage (burn marks) on the upper surface of 

the center upper auxiliary fuel tank and to 

the fuel vapor barrier seal. 

(4) Install non-metallic barrier/shield 

sleeving to the wire harnesses, new clamps, 

new attaching hardware, and new extruded 

channels. 

(h) Where Boeing Service Bulletin DC10– 

28–244, dated February 25, 2010, specifies to 

contact Boeing for repair instructions: Before 

further flight, repair the center upper 

auxiliary fuel tank using a method approved 

in accordance with the procedures specified 

in paragraph (i) of this AD. 

Alternative Methods of Compliance 

(AMOCs) 

(i)(1) The Manager, Los Angeles Aircraft 

Certification Office (ACO), FAA, has the 

authority to approve AMOCs for this AD, if 

requested using the procedures found in 14 

CFR 39.19. Send information to ATTN: 

Samuel Lee, Aerospace Engineer, Propulsion 

Branch, ANM–140L, FAA, Los Angeles ACO, 

3960 Paramount Boulevard, Lakewood, 

California 90712–4137; telephone (562) 627– 

5262; fax (562) 627–5210. 

(2) To request a different method of 

compliance or a different compliance time 

for this AD, follow the procedures in 14 CFR 

39.19. 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. 

(3) An AMOC that provides an acceptable 

level of safety may be used for any repair 

required by this AD if it is approved by the 

Boeing Commercial Airplanes Organization 

Designation Authorization (ODA) that has 

been authorized by the Manager, Los Angeles 

ACO to make those findings. For a repair 

method to be approved, the repair must meet 

the certification basis of the airplane and the 

approval must specifically refer to this AD. 

Issued in Renton, Washington, on June 16, 

2010. 

Robert D. Breneman, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2010–15653 Filed 6–25–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0610; Directorate 

Identifier 2009–SW–47–AD] 

RIN 2120–AA64 

Airworthiness Directives; Eurocopter 

France Model EC 155B, EC155B1, SA– 

360C, SA–365C, SA–365C1, SA–365C2, 

SA–365N, SA–365N1, AS–365N2, AS 

365 N3, and SA–366G1 Helicopters 

AGENCY: Federal Aviation 

Administration, DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This document proposes 

superseding an existing airworthiness 

directive (AD) for the specified 

Eurocopter France (Eurocopter) 

helicopters. That AD requires 

repetitively inspecting the main gearbox 

(MGB) planet gear carrier for a crack and 

replacing any MGB that has a cracked 

planet gear carrier before further flight. 

This action would require the same 

inspections required by the existing AD 

but would shorten the initial inspection 

interval. This proposal is prompted by 

the discovery of another crack in a MGB 

planet gear carrier and additional 

analysis that indicates that the initial 

inspection interval must be shortened. 

The actions specified by the proposed 

AD are intended to detect a crack in the 

web of the planet gear carrier, which 

could lead to a MGB seizure and 

subsequent loss of control of the 

helicopter. 

DATES: Comments must be received on 

or before August 27, 2010. 

ADDRESSES: Use one of the following 

addresses to submit comments on this 

proposed AD: 

• 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 

W12–140, 1200 New Jersey Avenue, SE., 

Washington, DC 20590, between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. 

• You may get the service information 

identified in this proposed AD from 

American Eurocopter Corporation, 2701 

Forum Drive, Grand Prairie, TX 75053– 


jlentini on DSKJ8SOYB1PROD with PROPOSALS
36582 Federal Register / Vol. 75, No. 123 / Monday, June 28, 2010 / Proposed Rules 

4005, telephone (800) 232–0323, fax 

(972) 641–3710, or at http:// 

www.eurocopter.com. 

You may examine the comments to 

this proposed AD in the AD docket on 

the Internet at http:// 

www.regulations.gov. 

FOR FURTHER INFORMATION CONTACT: Gary 

Roach, Aviation Safety Engineer, 

Rotorcraft Directorate, FAA, 2601 

Meacham Blvd., Fort Worth, Texas 

76137, telephone (817) 222–5130, fax 

(817) 222–5961. 

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 caption 

ADDRESSES. Include ‘‘Docket No. FAA– 

2010–0610; Directorate Identifier 2009– 

SW–47–AD’’ at the beginning of your 

comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of the proposed AD. We will 

consider all comments received by the 

closing date and may amend the 

proposed 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 with FAA 

personnel concerning this proposed 

rulemaking. Using the search function 

of the docket Web site, you can find and 

read the comments to any of our 

dockets, including the name of the 

individual who sent or signed the 

comment. You may review the DOT’s 

complete Privacy Act Statement in the 

Federal Register published on April 11, 

2000 (65 FR 19477–78). 

Examining the Docket 

You may examine the docket that 

contains the proposed AD, any 

comments, and other information in 

person at the Docket Operations office 

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

through Friday, except Federal holidays. 

The street address for the Docket 

Operations office (telephone (800) 647– 

5527) is in the ADDRESSES section of this 

AD. Comments will be available in the 

AD docket shortly after receipt. 

Discussion 

On February 1, 2005, we issued AD 

2005–03–09, Amendment 39–13965 (70 

FR 7382, February 14, 2005), to require 

the following: 

• For a MGB that has less than 250 

hours time-in-service (TIS) since new or 

last overhaul, borescope inspecting or 

visually inspecting the web of the planet 

gear carrier for a crack. The inspections 

must be done on or before the MGB 

reaches 265 hours TIS and then at 

intervals not to exceed 50 hours TIS. 

• For a MGB that has 250 or more 

hours TIS since new or since last 

overhaul, borescope inspecting or 

visually inspecting the web of the planet 

gear carrier for a crack. The inspections 

must be done within 15 hours TIS and 

then at intervals not to exceed 50 hours 

TIS. 

• For any MGB that has a cracked 

planet gear carrier, replacing the MGB 

with an airworthy MGB before further 

flight. 

That action was prompted by the 

discovery of cracks in the main gearbox 

during overhaul. The requirements of 

that AD are intended to detect a crack 

in the web of the planet gear carrier, 

which could lead to a MGB seizure and 

subsequent loss of control of the 

helicopter. 

Since the issuance of AD 2005–03–09, 

an additional crack has been found in 

the MGB planet gear carrier of a 

Eurocopter Model EC 155 helicopter. 

That crack was caused by a progressive 

fatigue failure caused by scoring in the 

blend radius between the pin and the 

web. An additional analysis indicates 

that the initial inspection must be 

shortened. Therefore, this proposed AD 

would shorten the initial inspection 

from 265 hours TIS to 35 hours TIS. The 

recurring 50 hour-TIS inspections 

would remain the same. 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for France, has issued EASA Emergency 

Airworthiness Directive No. 2007– 

0288–E, dated November 15, 2007. 

EASA states that cracks were discovered 

in the web of the MGB planet gear 

carrier. The two affected MGB units had 

been removed for overhaul/repair, 

subsequent to the detection of metal 

chips at the magnetic plugs. 

Investigation of the first case showed a 

failure of the head of a screw that 

secures the sun gear bearing. The screw 

head was caught by the planet gear/ 

fixed ring gear/sun gear drive train. The 

second case was discovered by the 

manufacturer and did not seem to be 

associated with any other failure. You 

may obtain further information by 

examining the MCAI and any related 

service information in the AD docket. 

Related Service Information 

Eurocopter France has issued the 

following Emergency Alert Service 

Bulletins: 

• No. 05A007, Revision 2, for the 

Model EC155 helicopters; 

• No. 05.00.48, Revision 3, for the 

Model AS365 helicopters; 

• No. 05.26, Revision 2, for the Model 

SA360 and SA365 helicopters; and 

• No. 05.33, Revision 2, for the SA366 

helicopters. 

Each Emergency Alert Service 

Bulletin (EASB) at the stated revision 

level is dated November 16, 2009 and 

describes the discovery of a progressive 

fatigue failure of the planet gear carrier. 

The EASBs specify inspecting the MGB 

planet gear carrier for a crack and 

removing the MGB and contacting the 

manufacturer before the next flight if a 

crack is found. 

FAA’s Evaluation and Unsafe Condition 

Determination 

These products have been approved 

by the aviation authority of France and 

are approved for operation in the United 

States. Pursuant to our bilateral 

agreement with France, EASA, their 

technical representative, has notified us 

of the unsafe condition described in the 

MCAI AD. We are proposing this AD 

because we evaluated all information 

provided by EASA and determined the 

unsafe condition exists and is likely to 

exist or develop on other products of 

these same type designs. This proposed 

AD would require inspecting the MGB 

planet gear carrier for a crack and 

replacing the MGB before further flight 

if a crack is found. The actions would 

be required to be accomplished by 

following specified portions of the 

EASBs described previously. 

Differences Between This Proposed AD 

and the EASA AD 

The MCAI references the service 

information rather than stating 

compliance times as we have done in 

this proposed AD. Unlike the EASBs, 

we have structured our compliance 

times based on a 250-hour TIS 

threshold. Also, the proposed AD does 

not require you to report cracks in the 

planet gear carrier to the manufacturer. 

Costs of Compliance 

We estimate that this AD will affect 

145 helicopters of U.S. registry. We also 

estimate that it would take about 1 

work-hour per helicopter for each 

borescope inspection and 12 work-hours 

for each visual inspection. Replacing the 

MGB, if necessary, would take about 16 

work-hours. The average labor rate is 

$85 per work-hour. Required parts 

would cost about $66,780 per MGB. 

Based on these figures, we estimate the 

cost of this AD on U.S. operators would 

be $3,486,760, assuming that a 

borescope inspection would be done on 

the entire fleet 12 times a year, that no 


jlentini on DSKJ8SOYB1PROD with PROPOSALS
Federal Register / Vol. 75, No. 123 / Monday, June 28, 2010 / Proposed Rules 36583 

visual inspections would be done, and 

that 49 MGBs would be replaced. 

Regulatory Findings 

We have determined that this 

proposed AD would not have federalism 

implications under Executive Order 

13132. Additionally, 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 that the 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 an economic evaluation 

of the estimated costs to comply with 

this proposed AD. See the AD docket to 

examine the economic evaluation. 

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. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Safety, Incorporation by 

reference. 

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. Section 39.13 is amended by 

removing Amendment 39–13965 (70 FR 

7382, February 14, 2005), and adding 

the following new AD: 

Eurocopter France: Docket No. FAA–2010– 

0610; Directorate Identifier 2009–SW– 

47–AD. Supersedes AD 2005–03–09; 

Docket No. FAA–2005–20294; 

Directorate Identifier 2004–SW–39–AD. 

Applicability 

Model EC 155B, EC155B1, SA–360C, SA– 

365C, SA–365C1, SA–365C2, SA–365N, SA– 

365N1, AS–365N2, AS 365 N3, and SA– 

366G1 helicopters, certificated in any 

category. 

Compliance 

Required as indicated. 

For a main gearbox (MGB) that has: Inspect: 

(1) Less than 250 hours time-in-service (TIS) since new or last overhaul.On or before the MGB reaches 35 hours TIS, unless accomplished 

previously, and thereafter at intervals not to exceed 50 hours TIS. 

(2) 250 or more hours TIS since new or last overhaul ............................ Within 15 hours TIS, unless accomplished previously, and thereafter at 

intervals not to exceed 50 hours TIS. 

To detect a crack in the web of the planet 

gear carrier, which could lead to a MGB 

seizure and subsequent loss of control of the 

helicopter, accomplish the following: 

(a) Either borescope inspect the web of the 

MGB planet gear carrier for a crack in 

accordance with the Operational Procedure, 

paragraphs 2.B.2. through 2.B.2.a.1, of 

Eurocopter Emergency Alert Service Bulletin 

(EASB) No. 05A007, Revision 2; No. 

05.00.48, Revision 3; No. 05.26, Revision 2; 

or No. 05.33, Revision 2; as applicable to 

your model helicopter, or visually inspect the 

MGB planet gear carrier in accordance with 

the Operational Procedure, paragraphs 2.B.3. 

through paragraph 2.B.3.a.1, of the EASB 

applicable to your model helicopter. Each 

EASB at the stated revision level is dated 

November 16, 2009. 

(b) If a crack is found in the planet gear 

carrier, replace the MGB with an airworthy 

MGB before further flight. 

(c) To request a different method of 

compliance or a different compliance time 

for this AD, follow the procedures in 14 CFR 

39.19. Contact the Manager, Safety 

Management Group, FAA, ATTN: Gary 

Roach, Aviation Safety Engineer, Rotorcraft 

Directorate, FAA, 2601 Meacham Blvd., Fort 

Worth, Texas 76137, telephone (817) 222– 

5130, fax (817) 222–5961, for information 

about previously approved alternative 

methods of compliance. 

(d) The Joint Aircraft System/Component 

(JASC) Code is 6320: Main Rotor Gearbox. 

Note: The subject of this AD is addressed 

in European Aviation Safety Agency AD No. 

2007–0288–E, dated November 15, 2007. 

Issued in Fort Worth, Texas, on June 16, 

2010. 

Gwendolynne O’Connell, 

Acting Manager, Rotorcraft Directorate, 

Aircraft Certification Service. 

[FR Doc. 2010–15370 Filed 6–25–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2010–0267; Airspace 

Docket No. 10–AGL–5] 

Proposed Amendment of Class E 

Airspace; Youngstown, OH 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

amend Class E airspace at Youngstown, 

OH, adding additional controlled 

airspace necessary to accommodate new 

Standard Instrument Approach 

Procedures (SIAPs) at Youngstown Elser 

Metro Airport, Youngstown, OH. The 

FAA is taking this action to enhance the 

safety and management of Instrument 

Flight Rules (IFR) operations at the 

airport. 


jlentini on DSKJ8SOYB1PROD with PROPOSALS