Peter,

I have not seen any other definition for biannual, but that would not
surprise me. I did quote from an online dictionary (see below). Biannual =
twice per year, Biennial = every 2 years. Does FAA wording refer to Biannual
or Biennial?



My source was:

http://www.tiscali.co.uk/reference/d.../d0081646.html

Also, according to Webster's, biannual is twice a year:

http://www.hyperdictionary.com/dictionary/biannual

MSN Encarta seems to support the same definition as above:
http://encarta.msn.com/dictionary_18.../biannual.html