[Federal Register Volume 70, Number 227 (Monday, November 28, 2005)]
[Notices]
[Pages 71367-71368]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 05-23304]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration


Data-Link Recorder Systems

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of availability and request for public comment.

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SUMMARY: This notice announces the availability of, and requests 
comment on proposed Technical Standard Order (TSO) C-177, Data-Link 
Recorder Systems. This proposed TSO tells persons seeking a TSO 
authorization or letter of design approval what minimum performance 
standards (MPS) their Data-Link Recorder Systems must meet to be 
identified with the appropriate TSO marking.

DATES: Comments must be received on or before December 28, 2005.

ADDRESSES: Send all comments on this proposed TSO to: Federal Aviation 
Administration (FAA), Aircraft Certification Service, Aircraft 
Engineering Division, Avionics Systems Branch (AIR-130), 800 
Independence Avenue SW., Washington, DC 20591. ATTN: Ms. Dara Gibson. 
Or, you may deliver comments to: Federal Aviation Administration, Room 
815, 800 Independence Avenue SW., Washington, DC 20591.

FOR FURTHER INFORMATION CONTACT: Ms. Dara Gibson, AIR-130, Room 815, 
Federal Aviation Administration, 800 Independence Avenue SW., 
Washington, DC 20591. Telephone (202) 385-4632, fax (202) 385-4651.

SUPPLEMENTARY INFORMATION: 

Comments Invited

    You are invited to comment on the proposed TSO by submitting 
written data, views, or arguments to the above address. Comments 
received may be examined, both before and after the closing data, in 
room 815 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 before issuing the final TSO.

Background

    Digital messaging technology created a need for a data-link 
recorder system that would ensure the information and data necessary 
for the investigation of incidents and accidents continues to be 
recorded on-board the aircraft. It is important that these digital 
messages are properly recorded and that the timing correlation between 
cockpit displays and other aircraft systems are preserved. This 
proposed TSO prescribes the minimum performance standards for data-link 
recorder systems equipment necessary to receive, process, record, 
preserve, and retrieve Communication, Navigation, Surveillance/Air 
Traffic Management (CNS/ATM) digital

[[Page 71368]]

messages transmitted to and from the aircraft to assist in 
investigation an incident or accident.

How to Obtain Copies

    You can view or download the proposed TSO from its online location 
at: http://www.airweb.faa.gov/rgl. At this Web page, select ``Technical 
Standard Orders.'' At the TSO page, select ``Proposed TSOs.'' For a 
paper copy, contact the person listed in FOR FURTHER INFORMATION 
CONTACT Note, SAE International documents are copyrighted and may not 
be reproduced without the written consent of SAE International. You may 
purchase copies of SAE International documents from: SAE International, 
400 Commonwealth Drive, Warrendale, PA, 15096-0001, or directly from 
their Web site: http://www.sae.org/.

    Issued in Washington, DC, on November 17, 2005.
Susan J. M. Cabler,
Assistant Manager, Aircraft Engineering Division, Aircraft 
Certification Service.
[FR Doc. 05-23304 Filed 11-25-05; 8:45 am]
BILLING CODE 4910-13-M