https://amclogistics.csd.disa.mil/Citrix/MetaFrame/auth/login.aspx
To find the link for all things related to the Air Force start at the official Air Force website. This includes finding the link for GO 81.
The web address of the Confederate Air Force is: http://www.confederateairforce.org
The web address of the Commomorative Air Force Museum is: http://www.azcaf.org
The web address of the Commemorative Air Force is: http://www.cafsmw.org
The web address of the Air Force Armament Museum is: http://www.afarmamentmuseum.com
The phone number of the Us Air Force Academy is: 719-333-2025.
The web address of the Commemorative Air Force Southern California Wing is: http://commemorativeairforce.org
The web address of the Wurtsmith Div Yankee Air Force is: http://www.wurtsmith-yaf-museum.org
The web address of the Virginia Chapter Of The Eighth Air Force Historical Soci is: 8thaf-virginia.org
it says it right on the air force web site
Search the web for "Air Gun Repair" or see the link below.
The promotion lists on AFPC's web site: http://www.afpc.af.mil/promotions include line numbers with each promotion list and the Main Air Force web site: http://www.af.mil These are the only official and authoritative sources for officer and enlisted promotion information.
Look at the related link and on the side ribbon of that web page you can also click on fitness and check that out if that is what you wanted.