[Federal Register Volume 70, Number 93 (Monday, May 16, 2005)]
[Notices]
[Page 25873]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 05-9627]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration


Proposed Advisory Circular Number AC 23-26, Advisory Circular on 
Synthetic Vision and Pathway Depictions on the Primary Flight Display

AGENCY: Federal Aviation Administration, DOT.

ACTION: Notice of availability; request for comments.

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SUMMARY: This notice announces the availability of and requests 
comments on a proposed advisory circular that sets forth an acceptable 
means, but not the only means of showing compliance with Title 14 Code 
of Federal Regulations (14 CFR), part 23, for two new concepts in small 
airplanes. The two concepts are: (1) Synthetic Vision (SV), and (2) 
pathway depictions displaying the navigation course on the primary 
flight display. This AC covers airplanes in the normal, utility, 
acrobatic, and commuter categories approved to fly under Instrument 
Flight Rules (IFR). This notice is necessary to give all interested 
persons an opportunity to present their views on the proposed AC.

DATES: Send your comments by June 15, 2005.

ADDRESSES: Copies of the proposed advisory circular, AC 23-26, may be 
requested from the following: Small Airplane Directorate, Standards 
Office (ACE-110), Aircraft Certification Service, Federal Aviation 
Administration, 901 Locust Street, Room 301, Kansas City, MO 64106. The 
proposed advisory circular is also available on the Internet at the 
following address: http://www.airweb.faa.gov/AC. Send all comments on 
this proposed advisory circular to the individual identified under FOR 
FURTHER INFORMATION CONTACT. Comments may be inspected at the above 
address between 7:30 a.m. and 4:00 p.m. weekdays, except Federal 
holidays.

FOR FURTHER INFORMATION CONTACT: Lowell B. Foster, Federal Aviation 
Administration, Small Airplane Directorate, Regulations & Policy, ACE-
111, 901 Locust Street, Room 301, Kansas City, Missouri 64106; 
telephone: (816) 329-4125; fax: 816-329-4090; e-mail: 
[email protected].

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite your comments on this proposed advisory circular. Send 
any data or views as you may desire. Identify the proposed Advisory 
Circular Number AC 23-26 on your comments, and if you submit your 
comments in writing, send two copies of your comments to the above 
address. The Small Airplane Directorate will consider all 
communications received on or before the closing date for comments. We 
may change the proposal contained in this notice because of the 
comments received.
    Comments sent by fax or the Internet must contain ``Comments to 
proposed advisory circular AC 23-26'' in the subject line. You do not 
need to send two copies if you fax your comments or send them through 
the Internet. If you send comments over the Internet as an attached 
electronic file, format it in either Microsoft Word 97 for Windows or 
ASCII text.
    State what specific change you are seeking to the proposed advisory 
circular and include justification (for example, reasons or data) for 
each request.

    Issued in Kansas City, Missouri on April 29, 2005.
John Colomy,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 05-9627 Filed 5-13-05; 8:45 am]
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