In case you didn't get the notice of the date change.
email from US Consulate wrote:NOTICE: CHANGE IN DATE OF OUTREACH PROVIDING ROUTINE SERVICES TO U.S. CITIZENS IN DA NANG, VIETNAM
Due to a potential scheduling conflict, we are changing the date of our outreach to U.S. citizens in Da Nang. We will be in Da Nang on Friday, December 6, 2013, from 10:00 am to 1:00 pm at the Bread of Life restaurant, 4 Dong Da Street.
We will be providing our normal, routine services notary services and passport renewal applications and will deliver federal benefits checks and correspondence.
We regret any inconvenience the change may cause.
American Citizen Services Unit
Consular Section
U.S. Consulate General
4 Le Duan, Dist. 1
Ho Chi Minh City
Ph: (84-8) 3520-4200
Fax: (84-8) 3520-4231
E-mail: [email protected]
http://hochiminh.usconsulate.gov/gen_ci … vices.html
Might be applicable to you AP.