[Federal Register Volume 70, Number 76 (Thursday, April 21, 2005)]
[Notices]
[Page 20795]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 05-7976]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration


Advisory Circular: Change 1 to 23-21, Airworthiness Compliance 
Checklists Used To Substantiate Major Alterations for Small Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of issuance of advisory circular.

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SUMMARY: This notice announces the issuance of change 1 to Advisory 
Circular (AC) 23-21, Airworthiness Compliance Checklists Used to 
Substantiate Major Alterations for Small Airplanes. The most 
significant change is a revision in all locations to the signature 
required so the aircraft may be returned to service after major 
alteration. The Aviation Safety Inspector in the Flight Standards 
District Office must now sign instead of an Airframe and Powerplant 
mechanic. Other changes were minor.

DATES: Change 1 to Advisory Circular 23-21 was issued by the Acting 
Manager of the Small Airplane Directorate on March 16, 2005.
    How to Obtain Copies: A paper copy of change 1 to AC 23-21 may be 
obtained by writing to the U.S. Department of Transportation, 
Subsequent Distribution Office, DOT Warehouse, SVC-121.23, Ardmore East 
Business Center, 3341Q 75th Ave., Landover, MD 20785, telephone 301-
322-5377, or by faxing your request to the warehouse at 301-386-5394. 
The change to the AC will also be available on the Internet at http://www.faa.gov/certification/aircraft.

    Issued in Kansas City, Missouri on April 8, 2005.
Nancy C. Lane,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 05-7976 Filed 4-20-05; 8:45 am]
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