29176 Federal Register / Vol. 76, No. 98 / Friday, May 20, 2011 / Proposed Rules 

that the Supplemental Information 

section for § 35.12(d)(1) considers to be 

all the information NRC needs to 

approve a § 35.1000 medical use. 

(Reviewed with the ACMUI during its 

March 1–2, 2004 meeting).) 

During the two-day workshops, the 

NRC will be available to discuss 

preliminary draft rule language under 

consideration for new and amended 

sections of 10 CFR part 35. The 

preliminary draft rule language, and any 

public comments on that language, can 

be found at http://www.regulations.gov 

by searching on Docket ID NRC–2008– 

0175. 

Dated at Rockville, Maryland, this 5th day 

of May 2011. 

For the Nuclear Regulatory Commission. 

Michael Fuller, 

Acting Branch Chief, Radioactive Materials 

Safety Branch, Division of Materials Safety 

and State Agreements, Office of Federal and 

State Materials and Environmental 

Management Program. 

[FR Doc. 2011–12048 Filed 5–19–11; 8:45 am] 

BILLING CODE 7590–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2009–0218; Directorate 

Identifier 2009–CE–006–AD] 

RIN 2120–AA64 

Airworthiness Directives; Piper 

Aircraft, Inc. PA–23, PA–31, and PA–42 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to revise an 

existing airworthiness directive (AD) 

that applies to Piper Aircraft, Inc. PA– 

23, PA–31, and PA–42 airplanes. The 

existing AD currently establishes life 

limits for safety-critical nose baggage 

door components. That AD also requires 

you to replace those safety-critical nose 

baggage door components and 

repetitively inspect and lubricate the 

nose baggage door latching mechanism 

and lock assembly. Since we issued that 

AD, through further investigation and a 

request for an alternative method of 

compliance (AMOC), we determined the 

nose baggage door compartment light 

does not impact the unsafe condition 

addressed by the AD. This proposed AD 

would remove the requirement for the 

nose baggage door compartment interior 

light inspection and retain the other 

requirements from AD 2009–13–06, 

Amendment 39–15944 (74 FR 29118). 

The door opening in flight could 

significantly affect the handling and 

performance of the aircraft. It could also 

allow baggage to be ejected from the 

nose baggage compartment and strike 

the propeller. This failure could lead to 

loss of control. 

DATES: We must receive comments on 

this proposed AD by July 5, 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: Deliver to Mail 

address above between 9 a.m. and 

5 p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this AD, contact Piper Aircraft, Inc., 

2926 Piper Drive, Vero Beach, Florida 

32960; telephone: (772) 567–4361; fax: 

(772) 978–6573; Internet: http:// 

www.newpiper.com/company/ 

publications.asp. You may review 

copies of the referenced service 

information at the FAA, Small Airplane 

Directorate, 901 Locust, Kansas City, 

MO 64106. For information on the 

availability of this material at the FAA, 

call (816) 329–4148. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Management Facility 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 Office 

(phone: 800–647–5527) is in the 

ADDRESSES section. Comments will be 

available in the AD docket shortly after 

receipt. 

FOR FURTHER INFORMATION CONTACT: 

Gregory K. Noles, Aerospace Engineer, 

FAA, Atlanta Aircraft Certification 

Office, 1701 Columbia Avenue, College 

Park, Georgia 30337; telephone: (404) 

474–5551; fax: (404) 474–5606. 

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–2009–0218; Directorate Identifier 

2009–CE–006–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 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 proposed AD. 

Discussion 

On June 12, 2009, we issued AD 

2009–13–06, Amendment 39–15944 (74 

FR 29118), for certain Piper Aircraft, 

Inc. PA–23, PA–31, and PA–42 

airplanes. That AD established life 

limits for safety-critical nose baggage 

door components. That AD also 

required replacement of those safetycritical nose baggage door components 

and repetitive inspections and 

lubrications of the nose baggage door 

latching mechanism and lock assembly. 

That AD resulted from several incidents 

and accidents, including fatal accidents, 

where the nose baggage door opening in 

flight was listed as a causal factor. We 

issued that AD to detect and correct 

damaged, worn, corroded, or nonconforming nose baggage door 

components, which could result in the 

nose baggage door opening in flight. The 

door opening in flight could 

significantly affect the handling and 

performance of the aircraft. It could also 

allow baggage to be ejected from the 

nose baggage compartment and strike 

the propeller. This failure could lead to 

loss of control. 

Actions Since Existing AD Was Issued 

Since we issued AD 2009–13–06, 

through further investigation and a 

request for a AMOC, we determined that 

requiring the inspection of the nose 

baggage door compartment light does 

not impact the unsafe condition 

addressed by the AD. 

Relevant Service Information 

We reviewed Piper Aircraft, Inc. 

Mandatory Service Bulletin No. 1194A, 

dated November 10, 2008. The service 

bulletin establishes life limits for safetycritical nose baggage door components, 

provides instructions on inspection and 

replacement of nose baggage door 

components, and provides instructions 

for lubrication of the nose baggage door 

latching mechanism and lock assembly. 


emcdonald on DSK2BSOYB1PROD with PROPOSALS
Federal Register / Vol. 76, No. 98 / Friday, May 20, 2011 / Proposed Rules 29177 

FAA’s Determination 

We are proposing this AD because we 

evaluated all the relevant information 

and determined the unsafe condition 

described previously is likely to exist or 

develop in other products of the same 

type design. 

Proposed AD Requirements 

This proposed AD would retain 

certain requirements of AD 2009–13–06. 

This proposed AD would remove the 

requirement for the nose baggage door 

compartment interior light inspection 

and retain the requirements to 

established life limits for safety-critical 

nose baggage door components, detect 

and correct damaged, worn, corroded, or 

non-conforming nose baggage door 

components, and repetitive inspections 

and lubrications of the nose baggage 

door latching mechanism and lock 

assembly. 

Differences Between the Proposed AD 

and the Service Information 

This proposed AD would remove the 

requirement for the nose baggage door 

compartment light inspection 

referenced in the last sentence of Piper 

Aircraft, Inc. Mandatory Service 

Bulletin No. 1194A, dated November 10, 

2008, Part 1, Step 1. 

Costs of Compliance 

We estimate that this proposed AD 

affects 8,000 airplanes of U.S. registry. 

We estimate the following costs to 

comply with this proposed AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Inspection and parts replacement of nose 

baggage door.

4 work-hours × $85 per hour = $340 .......... $190 $530 $4,240,000 

The new requirements of this 

proposed AD add no additional 

economic burden. The increased 

estimated cost of this AD is due to 

increased labor cost from 2009 when AD 

2009–13–06 was issued. 

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 have 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 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), 

(3) Will not affect intrastate aviation 

in Alaska, and 

(4) 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. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, 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 

removing Airworthiness Directive (AD) 

2009–13–06, Amendment 39–15944 (74 

FR 29118), and adding the following 

new AD: 

Piper Aircraft, Inc.: Docket No. FAA–2009– 

0218; Directorate Identifier 2009–CE– 

006–AD. 

Comments Due Date 

(a) The FAA must receive comments on 

this AD action by July 5, 2011. 

Affected ADs 

(b) This AD revises AD 2009–13–06, 

Amendment 39–15944. 

Applicability 

(c) This AD applies to Models PA–23, PA– 

23–160, PA–23–235, PA–23–250, PA–23–250 

(Navy UO–1), PA–E23–250, PA–31, PA–31– 

300, PA–31–325, PA–31–350, PA–31P, PA– 

31P–350, PA–31T, PA–31T1, PA–31T2, PA– 

31T3, PA–42, PA–42–720, and PA–42–1000 

airplanes, all serial numbers, that are: 

(1) Certificated in any category; and 

(2) Equipped with a baggage door in the 

fuselage nose section (a nose baggage door). 

Subject 

(d) Joint Aircraft System Component 

(JASC)/Air Transport Association (ATA) of 

America Code, 52, Doors. 

Unsafe Condition 

(e) This AD was prompted by several 

incidents and accidents, including fatal 

accidents, where the nose baggage door 

opening in flight was listed as a causal factor. 

We are issuing this AD to establish life limits 

for safety-critical nose baggage door 

components, replace those safety-critical 

nose baggage door components, and 

repetitively inspect and lubricate the nose 

baggage door latching mechanism and lock 

assembly. The door opening in flight could 

significantly affect the handling and 

performance of the aircraft. It could also 

allow baggage to be ejected from the nose 

baggage compartment and strike the 

propeller. This failure could lead to loss of 

control. 

Compliance 

(f) Comply with this AD within the 

compliance times specified, unless already 

done. 


emcdonald on DSK2BSOYB1PROD with PROPOSALS
29178 Federal Register / Vol. 76, No. 98 / Friday, May 20, 2011 / Proposed Rules 

Actions Compliance Procedures 

(1) For all aircraft: 

(i) Inspect the nose baggage door assembly for damaged, worn, corroded, or 

non-conforming components; 

(ii) Replace life-limited components specified in the service information; and 

(iii) Install or inspect, as applicable, the 

nose baggage placard following the service information. 

Initially within 1,000 hours time-in-service 

(TIS) since all life-limited components were 

installed new following Piper Aircraft, Inc. 

Mandatory Service Bulletin No. 1194A, 

dated November 10, 2008, or within the 

next 100 hours TIS after July 24, 2009 (the 

effective date retained from AD 2009–13– 

06), whichever occurs later. Repetitively 

thereafter at intervals not to exceed 1,000 

hours TIS. 

Follow INSTRUCTIONS: PART I of Piper Aircraft, Inc. Mandatory Service Bulletin No. 

1194A, dated November 10, 2008. As an 

alternative to using part number 100700– 

079 placard, you may fabricate a placard 

(using at least 1/8-inch letters) with the 

words in figure 1 of this AD and install the 

placard directly above the nose baggage 

door handle. This AD does not require 

verification of proper functioning of the nose 

baggage compartment interior light as stated in the last sentence of PART 1, paragraph 1, of Piper Aircraft, Inc. Mandatory 

Service Bulletin No. 1194A, dated November 10, 2008. 

(2) For all aircraft: 

(i) Lubricate and inspect all nose baggage 

door latching and locking components for 

damaged, worn, corroded, or 

non-conforming components; and 

Initially within 100 hours TIS after July 24, 

2009 (the effective date retained from AD 

2009–13–06); and Repetitively thereafter at 

intervals not to exceed 100 hours TIS. 

Follow INSTRUCTIONS: PART II of Piper Aircraft, Inc. Mandatory Service Bulletin No. 

1194A, dated November 10, 2008. 

(ii) Verify the key can only be removed 

from the lock assembly in the locked position in accordance with the service instructions. 

(3) For all aircraft with damaged, worn, corroded, or non-conforming components: repair/replace any damaged, worn, corroded, or 

non-conforming components. 

Before further flight after any inspection required in paragraphs (f)(1) and (f)(2) of this 

AD where any evidence of damaged, worn, 

corroded or non-conforming components 

was found. 

Follow Piper Aircraft, Inc. Mandatory Service 

Bulletin No. 1194A, dated November 10, 

2008. 

Alternative Methods of Compliance 

(AMOCs) 

(g)(1) The Manager, Atlanta 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. 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 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. 

(3) AMOCs approved for AD 2009–13–06 

are approved as AMOCs for this AD. 

Related Information 

(h) For more information about this AD, 

contact Gregory K. Noles, Aerospace 

Engineer, FAA, Atlanta ACO, 1701 Columbia 


emcdonald on DSK2BSOYB1PROD with PROPOSALSEP20MY11.066</GPH>
Federal Register / Vol. 76, No. 98 / Friday, May 20, 2011 / Proposed Rules 29179 

Avenue, College Park, Georgia 30337; 

telephone: (404) 474–5551; fax: (404) 474– 

5606. 

(i) For service information identified in 

this AD, contact Piper Aircraft, Inc., 2926 

Piper Drive, Vero Beach, Florida 32960; 

telephone: (772) 567–4361; fax: (772) 978– 

6573; Internet: http://www.newpiper.com/ 

company/publications.asp. You may review 

copies of the referenced service information 

at the FAA, Central Region, Office of the 

Regional Counsel, 901 Locust, Kansas City, 

Missouri 64106. For information on the 

availability of this material at the FAA, call 

(816) 329–3768. 

Issued in Kansas City, Missouri, on May 

13, 2011. 

Earl Lawrence, 

Manager, Small Airplane Directorate, Aircraft 

Certification Service. 

[FR Doc. 2011–12463 Filed 5–19–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2011–0359; Airspace 

Docket No. 11–AWP–1] 

Proposed Modification of Class D and 

E Airspace; Fort Huachuca, AZ 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

modify Class D and Class E airspace at 

Fort Huachuca, AZ, to accommodate 

aircraft departing and arriving under 

Instrument Flight Rules (IFR) at Fort 

Huachuca, Sierra Vista Municipal 

Airport-Libby Army Airfield. This 

action, initiated by the biennial review 

of the Fort Huachuca airspace area, 

would enhance the safety and 

management of aircraft operations at the 

airport. This action would also update 

the airport name. 

DATES: Comments must be received on 

or before July 5, 2011. 

ADDRESSES: Send comments on this 

proposal to the U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue, SE., Washington, DC 20590; 

telephone (202) 366–9826. You must 

identify FAA Docket No. FAA–2011– 

0359; Airspace Docket No. 11–AWP–1, 

at the beginning of your comments. You 

may also submit comments through the 

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

FOR FURTHER INFORMATION CONTACT: Rick 

Roberts, Federal Aviation 

Administration, Operations Support 

Group, Western Service Center, 1601 

Lind Avenue, SW., Renton, WA 98057; 

telephone (425) 203–4517. 

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 

2011–0359 and Airspace Docket No. 11– 

AWP–1) and be submitted in triplicate 

to the Docket Management System (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 FAA 

Docket No. FAA–2011–0359 and 

Airspace Docket No. 11–AWP–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/airports_airtraffic/ 

air_traffic/publications/ 

airspace_amendments/. 

You may review the public docket 

containing the proposal, any comments 

received, and any final disposition in 

person in the Dockets Office (see the 

ADDRESSES section for the 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 Northwest 

Mountain Regional Office of the Federal 

Aviation Administration, Air Traffic 

Organization, Western Service Center, 

Operations Support Group, 1601 Lind 

Avenue, SW., Renton, WA 98057. 

Persons interested in being placed on 

a mailing list for future NPRM’s 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. 

The Proposal 

The FAA is proposing an amendment 

to Title 14 Code of Federal Regulations 

(14 CFR) part 71 by modifying Class D 

airspace, and Class E airspace 

designated as an extension to Class D 

surface area, and airspace extending 

upward from 700 feet above the surface, 

at Fort Huachuca, AZ. This action was 

initiated by the FAA’s biennial review 

of the airspace, in which they found 

additional controlled airspace necessary 

for the safety and management of 

aircraft departing and arriving under 

IFR operations at Fort Huachuca, Sierra 

Vista Municipal Airport-Libby Army 

Airfield. This action would also update 

the geographic coordinates and the 

airport name from Fort Huachuca, Libby 

AAF/Sierra Vista Municipal Airport, to 

Fort Huachuca, Sierra Vista Municipal 

Airport-Libby Army Airfield. 

Class D airspace and Class E airspace 

designations are published in paragraph 

5000, 6004 and 6005, respectively, of 

FAA Order 7400.9U, dated August 18, 

2010, and effective September 15, 2010, 

which is incorporated by reference in 14 

CFR 71.1. The Class D airspace and 

Class E airspace designation listed in 

this document will be published 

subsequently in this Order. 

The FAA has determined this 

proposed regulation only involves an 

established body of technical 

regulations for which frequent and 

routine amendments are necessary to 

keep them operationally current. 

Therefore, this proposed regulation; (1) 

is not a ‘‘significant regulatory action’’ 

under Executive Order 12866; (2) is not 

a ‘‘significant rule’’ under DOT 

Regulatory Policies and Procedures (44 

FR 11034; February 26, 1979); and (3) 

does not warrant preparation of a 

regulatory evaluation as the anticipated 

impact is so minimal. Since this is a 

routine matter that will only affect air 

traffic procedures and air navigation, it 

is certified this proposed rule, when 

promulgated, would not have a 

significant economic impact on a 


emcdonald on DSK2BSOYB1PROD with PROPOSALS