[Federal Register Volume 68, Number 44 (Thursday, March 6, 2003)]
[Notices]
[Pages 10774-10775]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 03-5292]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration


Airborne Navigation Sensors Using the Global Positioning System 
Augmented by the Local Area Augmentation System

AGENCY: Federal Aviation Administration, DOT.

ACTION: Notice of availability and request for public comment.

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SUMMARY: This notice announces the availability of and requests 
comments on a draft Technical Standard Order (TSO) C-161, Local Area 
Augmentation System Positioning and Navigation Equipment. The draft TSO 
tells manufacturers seeking TSO authorization or letter of design 
approval what minimum performance standards (MPS) their airborne 
navigation equipment using the Global Positioning System (GPS) 
augmented by the Local Area Augmentation System (LAAS) (GPS/LAAS 
equipment) must first meet for approval and identification with the 
applicable TSO marking.

DATES: Submit comments on or before April 8, 2003.

ADDRESSES: Send all comments on the proposed TSO to: Federal Aviation 
Administration, Aircraft Certification Service, Room 815, AIR-130, 800 
Independence Avenue, SW., Washington, DC 20591. You may deliver 
comments to: Federal Aviation Administration, 800 Independence Avenue, 
SW., Room 815, Washington, DC 20591.

FOR FURTHER INFORMATION CONTACT: Mr. Bruce DeCleene, Federal Aviation 
Administration, Aircraft Certification Service, Room 815, AIR-130, 800 
Independence Avenue, SW., Washington, DC 20591, Telephone: (202) 385-
4640, Fax: (202) 395-4651.

SUPPLEMENTARY INFORMATION:

[[Page 10775]]

Comments Invited

    You are invited to comment on the draft TSO listed in this notice 
by submitting written data, views, or arguments, to the address listed 
above. Your comments should identify ``Comments to TSO C-161.1.'' You 
can examine all comments on the draft TSO before and after the closing 
date, at the Federal Aviation Administration, Room 815, 800 
Independence Avenue, SW., Washington, DC 20591, weekdays except Federal 
Holidays between 8:30 a.m. and 4:30 p.m. The Director of the Aircraft 
Certification Service considers all communications received on or 
before the closing date before issuing the final TSO.

Background

    The FAA is pursuing differential GPS technology under the LAAS 
program. LAAS ground facilities will be consistent with the 
International Civil Aviation Organization standards for Ground-based 
Augmentation Systems for GPS that support Category I precision 
approaches and the positioning service. RTCA has developed standards 
for airborne navigation equipment using LAAS. Two new TSOs have been 
drafted based upon the RTCA standards. One TSO is for the VHF data 
broadcast receive function; the other is for the position and 
navigation function.

How To Obtain Copies

    You may get a copy of the draft TSO from the Internet at: http://av-info.faa.gov/tso/Tsopro/Proposed.htm. You may also request a copy 
from Mr. Bruce DeCleene, See the section entitled FOR FURTHER 
INFORMATION CONTACT for the complete address.

    Issued in Washington, DC, on February 28, 2003.
Susan J.M. Cabler,
Deputy Manager, Aircraft Engineering Division, Aircraft Certification 
Service.
[FR Doc. 03-5292 Filed 3-5-03; 8:45 am]
BILLING CODE 4910-13-M