Technical Standard Order (TSO) C-122a, Equipment That Prevent Blocked Channels Used in Two-Way Radio Communications Due to Simultaneous Transmissions, 37734 [2012-15238]

Download as PDF 37734 Federal Register / Vol. 77, No. 121 / Friday, June 22, 2012 / Notices accuracy is to be achieved on long range flights. Use of INS and Global Positioning System (GPS) has rendered TSO-C68a systems obsolete. The FAA has no record of any applications for TSO-C68a since it was published in 1983. Given the obsolescence of the equipment and the lack of industry interest in TSO-C68a product designs, we propose cancelling TSO-C68a. Issued in Washington, DC, on June 18, 2012. Susan J.M. Cabler, Assistant Manager, Aircraft Engineering Division, Aircraft Certification Service. [FR Doc. 2012–15237 Filed 6–20–12; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration Technical Standard Order (TSO) C-122a, Equipment That Prevent Blocked Channels Used in Two-Way Radio Communications Due to Simultaneous Transmissions Federal Aviation Administration (FAA), DOT. ACTION: Notice. AGENCY: This notice announces the FAA’s intent to cancel TSO-C122a, Equipment That Prevent Blocked Channels Used in Two-Way Radio Communications Due to Simultaneous Transmissions. The effect of the cancelled TSO will not affect design or production according to an existing TSO authorization (TSOA). Articles produced under an existing TSOA can still be installed according to existing airworthiness approvals and applications for new airworthiness installation approvals will still be processed. SUMMARY: Comments must be received on or before July 23, 2012. FOR FURTHER INFORMATION CONTACT: Mrs. Veronica Gardner, AIR–130, Federal Aviation Administration, 470 L’Enfant Plaza, Suite 4102, Washington, DC 20024. Telephone (202) 385–4690, fax (202) 385–4651, email to: veronica.gardner@faa.gov. DATES: wreier-aviles on DSK7SPTVN1PROD with NOTICES Comments Invited You are invited to comment on the proposed cancellation of the TSO by submitting written data, views, or arguments to the above address. Comments received may be examined, both before and after the closing date at the above address, weekdays except federal holidays, between 8:30 a.m. and 15:20 Jun 21, 2012 Jkt 226001 Background In 1984, the FAA was petitioned to enact rulemaking requiring two-way radio communication systems employing anti-blocking and stuck microphone protection circuitry. Our response to this rulemaking petition was the issuance of TSO-C128, Devices that Prevent Blocked Channels Used in TwoWay Radio Communications Due to Unintentional Transmissions, for preventing blocked channels used in two-way radio communication due to unintentional transmissions. TSO-C128, and the subsequent revision, has proven effective and popular with VHF radio manufacturers. Since 1994, there has been only one application for TSOA for TSO-C122a. Therefore, we believe it is appropriate to cancel TSO-C122a, given the eventual obsolescence of TSO-C122a equipment and the lack of industry interest in new TSO-C122a product designs. We continue to coordinate with industry’s federal advisory committee through RTCA Special Committee (SC) 226, Audio Systems and Equipment, for any new developments on other means being used to address blocked channels caused by simultaneous transmissions. Issued in Washington, DC, on June 18, 2012. Susan J.M. Cabler, Assistant Manager, Aircraft Engineering Division, Aircraft Certification Service. [FR Doc. 2012–15238 Filed 6–21–12; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Highway Administration [Docket No. FHWA–2012–0049] Agency Information Collection Activities: Request for Comments for a New Information Collection Federal Highway Administration (FHWA), DOT. ACTION: Notice and request for comments. AGENCY: The FHWA invites public comments about our intention to request the Office of Management and Budget’s (OMB) approval for a new information collection, which is summarized below under SUPPLEMENTARY INFORMATION. We are required to publish this notice in the Federal Register by the Paperwork Reduction Act of 1995. DATES: Please submit comments by August 21, 2012. SUMMARY: SUPPLEMENTARY INFORMATION: VerDate Mar<15>2010 4:30 p.m. The Director, Aircraft Certification Service, will consider all comments received on or before the closing date. PO 00000 Frm 00083 Fmt 4703 Sfmt 4703 You may submit comments identified by DOT Docket ID 2012–0049 by any of the following methods: Web site: For access to the docket to read background documents or comments received go to the Federal eRulemaking Portal: Go to https:// www.regulations.gov. Follow the online instructions for submitting comments. Fax: 1–202–493–2251. Mail: Docket Management Facility, U.S. Department of Transportation, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590–0001. Hand Delivery or Courier: U.S. Department of Transportation, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590, between 9 a.m. and 5 p.m. ET, Monday through Friday, except Federal holidays. FOR FURTHER INFORMATION CONTACT: Marlys Osterhues, 202–366–2052, Department of Transportation, Federal Highway Administration, Office of Project Development and Environmental Review, E76–312, 1200 New Jersey Avenue SE., Washington, DC 20590. Office hours are from 8 a.m. to 5 p.m., Monday through Friday, except Federal holidays. SUPPLEMENTARY INFORMATION: Title: FHWA Environmental Excellence Awards. Background: In 1995 FHWA established the biennial Environmental Excellence Awards to recognize partners, projects and processes that use FHWA funding sources to go beyond environmental compliance and achieve environmental excellence. Awardees must make an outstanding contribution that goes beyond traditional transportation projects and that encourages environmental stewardship and partnerships to achieve a truly multi-faceted, environmentally sensitive transportation solution. Award: Anyone can nominate a project, process, person or group that has used Federal Highway Administration funding sources to make an outstanding contribution to transportation and the environment. The nominator is responsible for submitting an application via the FHWA Environmental Excellence Awards Web site that gives a summary of the outstanding accomplishments of the entry. The collected information will be used by FHWA to evaluate, showcase and enhance the public’s knowledge on incorporating environmental stewardship into the planning and project development process. Nominations will be reviewed by an independent panel of judges from ADDRESSES: E:\FR\FM\22JNN1.SGM 22JNN1

Agencies

[Federal Register Volume 77, Number 121 (Friday, June 22, 2012)]
[Notices]
[Page 37734]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-15238]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration


Technical Standard Order (TSO) C-122a, Equipment That Prevent 
Blocked Channels Used in Two-Way Radio Communications Due to 
Simultaneous Transmissions

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice.

-----------------------------------------------------------------------

SUMMARY: This notice announces the FAA's intent to cancel TSO-C122a, 
Equipment That Prevent Blocked Channels Used in Two-Way Radio 
Communications Due to Simultaneous Transmissions. The effect of the 
cancelled TSO will not affect design or production according to an 
existing TSO authorization (TSOA). Articles produced under an existing 
TSOA can still be installed according to existing airworthiness 
approvals and applications for new airworthiness installation approvals 
will still be processed.

DATES: Comments must be received on or before July 23, 2012.

FOR FURTHER INFORMATION CONTACT: Mrs. Veronica Gardner, AIR-130, 
Federal Aviation Administration, 470 L'Enfant Plaza, Suite 4102, 
Washington, DC 20024. Telephone (202) 385-4690, fax (202) 385-4651, 
email to: veronica.gardner@faa.gov.

SUPPLEMENTARY INFORMATION:

Comments Invited

    You are invited to comment on the proposed cancellation of the TSO 
by submitting written data, views, or arguments to the above address. 
Comments received may be examined, both before and after the closing 
date at the above address, weekdays except federal holidays, between 
8:30 a.m. and 4:30 p.m. The Director, Aircraft Certification Service, 
will consider all comments received on or before the closing date.

Background

    In 1984, the FAA was petitioned to enact rulemaking requiring two-
way radio communication systems employing anti-blocking and stuck 
microphone protection circuitry. Our response to this rulemaking 
petition was the issuance of TSO-C128, Devices that Prevent Blocked 
Channels Used in Two-Way Radio Communications Due to Unintentional 
Transmissions, for preventing blocked channels used in two-way radio 
communication due to unintentional transmissions. TSO-C128, and the 
subsequent revision, has proven effective and popular with VHF radio 
manufacturers. Since 1994, there has been only one application for TSOA 
for TSO-C122a. Therefore, we believe it is appropriate to cancel TSO-
C122a, given the eventual obsolescence of TSO-C122a equipment and the 
lack of industry interest in new TSO-C122a product designs. We continue 
to coordinate with industry's federal advisory committee through RTCA 
Special Committee (SC) 226, Audio Systems and Equipment, for any new 
developments on other means being used to address blocked channels 
caused by simultaneous transmissions.

    Issued in Washington, DC, on June 18, 2012.
Susan J.M. Cabler,
Assistant Manager, Aircraft Engineering Division, Aircraft 
Certification Service.
[FR Doc. 2012-15238 Filed 6-21-12; 8:45 am]
BILLING CODE 4910-13-P
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