22380 Federal Register / Vol. 77, No. 72 / Friday, April 13, 2012 / Notices 

http://www.regulations.gov at any time 

or to the Docket Management Facility in 

Room W12–140 of the West Building 

Ground Floor at 1200 New Jersey 

Avenue SE., Washington, DC, between 9 

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

Friday, except Federal holidays. 

FOR FURTHER INFORMATION CONTACT: 

Tyneka Thomas ARM–105, (202) 267– 

7626, FAA, Office of Rulemaking, 800 

Independence Ave. SW., Washington, 

DC 20591. This notice is published 

pursuant to 14 CFR 11.85. 

Issued in Washington, DC on April 10, 

2012. 

Brenda D. Courtney, 

Acting Deputy Director, Office of Rulemaking. 

PETITION FOR EXEMPTION 

Docket No.: FAA–2012–0053 

Petitioner: Omni Air International 

Section of 14 CFR Affected: 14 CFR 

§ 121.652(a) and (c) 

Description of Relief Sought: Omni 

Air International seeks relief to allow 

pilots to substitute crosswind 

component and braking action 

restrictions, along with a requirement to 

utilize automatic landing and approach 

coupler equipment, at the destination 

and alternate airports in place of the 

existing restrictions to decision height 

and visibility minimum for pilots-incommand who have not yet 

accumulated 100 hours (50 if reducible) 

in their current aircraft type. The relief 

would be applicable to regular part 121 

domestic, flag or supplemental 

operations. 

[FR Doc. 2012–8981 Filed 4–12–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

[Summary Notice No. PE–2012–10] 

Petition for Exemption; Summary of 

Petition Received 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of petition for exemption 

received. 

SUMMARY: This notice contains a 

summary of a petition seeking relief 

from specified requirements of 14 CFR. 

The purpose of this notice is to improve 

the public’s awareness of, and 

participation in, this aspect of FAA’s 

regulatory activities. Neither publication 

of this notice nor the inclusion or 

omission of information in the summary 

is intended to affect the legal status of 

the petition or its final disposition. 

DATE: Comments on this petition must 

identify the petition docket number and 

must be received on or before May 3, 

2012. 

ADDRESSES: You may send comments 

identified by Docket Number FAA– 

2012–0127 using any of the following 

methods: 

• Government-wide rulemaking Web 

site: Go to http://www.regulations.gov 

and follow the instructions for sending 

your comments electronically. 

• Mail: Send comments to the Docket 

Management Facility; U.S. Department 

of Transportation, 1200 New Jersey 

Avenue SE., West Building Ground 

Floor, Room W12–140, Washington, DC 

20590. 

• Fax: Fax comments to the Docket 

Management Facility at 202–493–2251. 

• Hand Delivery: Bring comments to 

the Docket Management Facility in 

Room W12–140 of the West Building 

Ground Floor at 1200 New Jersey 

Avenue SE., Washington, DC, between 9 

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

Friday, except Federal holidays. 

Privacy: We will post all comments 

we receive, without change, to http:// 

www.regulations.gov, including any 

personal information you provide. 

Using the search function of our docket 

Web site, anyone can find and read the 

comments received into any of our 

dockets, including the name of the 

individual sending the comment (or 

signing the comment for an association, 

business, labor union, etc.). You may 

review DOT’s complete Privacy Act 

Statement in the Federal Register 

published on April 11, 2000 (65 FR 

19477–78). 

Docket: To read background 

documents or comments received, go to 

http://www.regulations.gov at any time 

or to the Docket Management Facility in 

Room W12–140 of the West Building 

Ground Floor at 1200 New Jersey 

Avenue SE., Washington, DC, between 9 

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

Friday, except Federal holidays. 

FOR FURTHER INFORMATION CONTACT: 

Keira Jones (202) 267–4024, or Tyneka 

Thomas (202) 267–7626, Office of 

Rulemaking, Federal Aviation 

Administration, 800 Independence 

Avenue SW., Washington, DC 20591. 

This notice is published pursuant to 

14 CFR 11.85. 

Issued in Washington, DC, on April 5, 

2012. 

Brenda D. Courtney, 

Acting Deputy Director, Office of Rulemaking. 

Petition for Exemption 

Docket No.: FAA–2012–0127 

Petitioner: United Airlines 

Section of 14 CFR Affected: 14 CFR 

121.291(b)(1) and (d) 

Description of Relief Sought: United 

Airlines seeks relief to continue 

operating the B767–300 without 

conducting the required partial 

evacuation and ditching 

demonstrations. In addition, United 

seeks the relief to avoid unnecessary 

operational burdens and avoid 

disruptions in service by ensuring 

continued operations of the B767–300. 

[FR Doc. 2012–8986 Filed 4–12–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

[Summary Notice No. PE–2012–11] 

Petition for Exemption; Summary of 

Petition Received 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of petition for exemption 

received. 

SUMMARY: This notice contains a 

summary of a petition seeking relief 

from specified requirements of 14 CFR. 

The purpose of this notice is to improve 

the public’s awareness of, and 

participation in, this aspect of FAA’s 

regulatory activities. Neither publication 

of this notice nor the inclusion or 

omission of information in the summary 

is intended to affect the legal status of 

the petition or its final disposition. 

DATES: Comments on this petition must 

identify the petition docket number 

involved and must be received on or 

before May 3, 2012. 

ADDRESSES: You may send comments 

identified by Docket Number FAA– 

2012–0137 using any of the following 

methods: 

• Government-wide rulemaking Web 

site: Go to http://www.regulations.gov 

and follow the instructions for sending 

your comments electronically. 

• Mail: Send comments to the Docket 

Management Facility; U.S. Department 

of Transportation, 1200 New Jersey 

Avenue SE., West Building Ground 

Floor, Room W12–140, Washington, DC 

20590. 

• Fax: Fax comments to the Docket 

Management Facility at 202–493–2251. 

• Hand Delivery: Bring comments to 

the Docket Management Facility in 

Room W12–140 of the West Building 

Ground Floor at 1200 New Jersey 

Avenue SE., Washington, DC, between 9 

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

Friday, except Federal holidays. 

Privacy: We will post all comments 

we receive, without change, to http:// 

www.regulations.gov, including any 


pmangrum on DSK3VPTVN1PROD with NOTICES
Federal Register / Vol. 77, No. 72 / Friday, April 13, 2012 / Notices 22381 

1Ethyl mercaptan is a colorless organic liquid 

with a low odor threshold of 0.4 parts per billion, 

thus making it easily detectable by persons with a 

normal sense of smell when injected at standard 

industry rates. 

personal information you provide. 

Using the search function of our docket 

web site, anyone can find and read the 

comments received into any of our 

dockets, including the name of the 

individual sending the comment (or 

signing the comment for an association, 

business, labor union, etc.). You may 

review DOT’s complete Privacy Act 

Statement in the Federal Register 

published on April 11, 2000 (65 FR 

19477–78). 

Docket: To read background 

documents or comments received, go to 

http://www.regulations.gov at any time 

or to the Docket Management Facility in 

Room W12–140 of the West Building 

Ground Floor at 1200 New Jersey 

Avenue SE., Washington, DC, between 9 

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

Friday, except Federal holidays. 

FOR FURTHER INFORMATION CONTACT: 

Tyneka Thomas ARM–105, (202) 267– 

7626, FAA, Office of Rulemaking, 800 

Independence Ave SW., Washington, 

DC 20591. This notice is published 

pursuant to 14 CFR 11.85. 

Issued in Washington, DC, on April 20, 

2102. 

Brenda D. Courtney, 

Acting Deputy Director, Office of Rulemaking. 

PETITION FOR EXEMPTION 

Docket No.: FAA–2012–0137 

Petitioner: Landmark Aviation 

Section of 14 CFR Affected: 14 CFR 

§§ 135.293(a)(2) and (3), 135.293(b), 

135.297, 135.329(b), 135.345(b) and 

135.347 

Description of Relief Sought: The 

relief sought would allow Landmark’s 

wholly-owned subsidiary, Piedmont 

Aviation, to receive credit for aircraft 

specific training, testing, and checking 

by pilots while employed by Landmark 

Waukegan, another operating unit of 

Landmark Aviation. In addition the 

requested relief includes aircraftspecific initial new hire ground and 

flight training written, and oral tests, 

competency checks, and pilot in 

command instrument proficiency 

checks. 

[FR Doc. 2012–8983 Filed 4–12–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Railroad Administration 

[Safety Advisory 2012–01] 

Odorant Fade in Railroad Tank Cars 

AGENCY: Federal Railroad 

Administration (FRA), Department of 

Transportation (DOT). 

ACTION: Notice of Safety Advisory. 

SUMMARY: FRA is issuing Safety 

Advisory 2012–01 to remind shippers 

and consignees of railroad tank cars 

containing odorized liquefied petroleum 

gas (LPG), of the importance of taking 

actions to ensure that a sufficient level 

of odorant remains in the LPG 

throughout the entire transportation 

cycle. FRA is issuing this notice to raise 

awareness within the hazardous 

materials community, of the potential 

consequences of having LPG reach endusers as under-odorized or essentially 

non-odorized material due to the 

diminishment of the added odorant 

during the transportation cycle 

(commonly known as ‘‘odorant fade’’). 

This safety advisory recommends that 

shippers and consignees of bulk 

quantities of odorized LPG review their 

existing LPG odorization standards and 

procedures, and take appropriate 

actions to guard against odorant fade in 

their shipments. 

FOR FURTHER INFORMATION CONTACT: 

Kevin R. Blackwell, Railroad Safety 

Specialist, Hazardous Materials 

Division, Office of Safety Assurance and 

Compliance, FRA, 1200 New Jersey 

Avenue SE., Washington, DC 20590 

(telephone: (202) 493–6315; email: 

Kevin.Blackwell@dot.gov); or Kurt 

Eichenlaub, Railroad Safety Specialist, 

Hazardous Materials Division, Office of 

Safety Assurance and Compliance, FRA, 

1200 New Jersey Avenue SE., 

Washington, DC 20590 (telephone: (202) 

493–6050; email: 

Kurt.Eichenlaub@dot.gov). 

SUPPLEMENTARY INFORMATION: DOT’s 

Hazardous Materials Regulations 

(HMR), Title 49 Code of Federal 

Regulations (CFR) Parts 171–180, allow 

use of the proper shipping name, 

‘‘liquefied petroleum gas’’ (or LPG), for 

a number of petroleum gases with 

properties similar to propane. Much of 

the LPG loaded and shipped in the 

United States by railroad tank car is 

from bulk suppliers to either industrial 

end-users or to ‘‘midstream’’ suppliers 

who then sell and redistribute the LPG 

to commercial, retail, and general public 

end-users. In 2010, LPG represented less 

than 9 percent of all loaded hazardous 

materials tank car shipments originating 

in the United States. Because LPG is a 

colorless and odorless gas, odorants are 

normally added to the material (with the 

exception of LPG being shipped to 

industrial end-users) in the liquid phase 

to enable human detection when its 

vaporized gases are released in the 

atmosphere. The majority of LPG 

produced for non-industrial uses is 

odorized by bulk providers of the 

material. The presence of LPG in the 

consumer supply chain, with either 

diminished levels of odorant or no 

odorant present, represents significant 

safety risks. Absent sufficient 

odorization of the commodity, LPG 

leaks can go undetected and ignite. 

Diminished or absent levels of LPG 

odorant has been determined to have 

been a contributing factor in incidents 

that have resulted in injuries and 

fatalities. For example, a July 30, 2010, 

incident occurred at a condominium 

construction site in Norfolk, MA, when 

a release of LPG from a leaking 

connection in the basement of a 

building under construction resulted in 

an explosion and fire. This incident 

resulted in one fatality and seven 

injuries. An investigation conducted by 

the Massachusetts Department of Fire 

Services, Division of Fire Safety, 

revealed that the LPG in the storage 

tanks at the construction site had 

virtually no odorant present, explaining 

why no one at the construction site 

reported smelling the LPG leak prior to 

the explosion. While the LPG involved 

in the Norfolk accident did not originate 

from a rail shipment, the investigation 

into the accident revealed that a large 

quantity of LPG—shipped via railroad 

tank car as odorized—had been 

delivered to commercial and retail endusers with either a diminished level of 

odorization or no odorization at all. 

Odorization 

The proper odorization of LPG is 

addressed by a combination of Federal 

and State laws and regulations, as well 

as by accepted industry standards and 

practices. In accordance with the 

applicable laws and regulations, LPG 

intended for use by non-industrial 

entities (e.g., commercial and retail 

entities, and the general public) is 

generally required to be odorized (or 

‘‘stenched’’) to enable the detection of 

any unintended release or leak of the 

gas. In the context of the rail 

transportation of LPG, the HMR require 

the odorization of LPG transported in 

cargo tanks and portable tanks, but not 

railroad tank cars. Specifically, 49 CFR 

173.315(b)(1) provides that odorizing 

LPG shipments in cargo and portable 

tanks with 1.0 pound of ethyl mercaptan 

per 10,000 gallons of LPG, or the 

equivalent, is an acceptable form of 

odorization.1 That section also provides 

an exception from the odorization 

requirement if odorization would be 

‘‘harmful in the use or further 

processing of the [LPG], or if odorization 

will serve no useful purpose as a 


pmangrum on DSK3VPTVN1PROD with NOTICES