[Federal Register Volume 74, Number 175 (Friday, September 11, 2009)]
[Notices]
[Page 46831]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E9-21953]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration


Notice of Availability of Draft Technical Standard Order (TSO)-
C166b for Extended Squitter Automatic Dependent Surveillance-Broadcast 
and Traffic Information Service-Broadcast Equipment Operating on the 
Radio Frequency of 1090 Megahertz (MHz)

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation.

ACTION: Notice of availability and request for comment.

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SUMMARY: The FAA is announcing the availability of and requesting 
comment on proposed TSO-C166b. The Avionic Systems Branch of the 
Aircraft Engineering Division, Aircraft Certification Service, FAA has 
presented a proposed revision of existing TSO-C166a. RTCA, Inc. Special 
Committee (SC)-186 is revising RTCA Document DO-260A, Minimum 
Operational Performance Standards for 1090 MHz Extended Squitter 
Automatic Dependent Surveillance-Broadcast (ADS-B) and Traffic 
Information-Broadcast (TIS-B), which will become the Minimum 
Performance Standard (MPS) for the proposed TSO-166b. Proposed TSO-
C166b can be found at http://www.faa.gov/aircraft/draft_docs/. 
Comments may be filed electronically following instructions on the 
webpage. Comments may also be filed using the addresses provided below.

DATES: Comments must be received no later than October 9, 2009.

ADDRESSES: Comments may be submitted by the above deadline to Mr. Chip 
Bulger, AIR-130, Orville Wright Bldg. (FOB10A), 800 Independence 
Avenue, SW., Washington, DC 20591; facsimile: 202-385-4651.

FOR FURTHER INFORMATION CONTACT: Mr. Chip Bulger, Avionics Systems 
Branch, Aircraft Engineering Division, Aircraft Certification Service, 
Federal Aviation Administration, 470 L'Enfant Plaza, SW., Washington, 
DC 20591; telephone 202-385-4882; [email protected].

    Issued in Washington, DC on September 8, 2009.
David W. Hempe,
Manager, Aircraft Engineering Division.
[FR Doc. E9-21953 Filed 9-10-09; 8:45 am]
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