Indicate aircraft identity by one of the following using combinations not to exceed seven alphanumeric characters:
Civil aircraft, including the air carrier letter digit registration number which can include the letter “T” for air taxi, the letter “L” for MEDEVAC, or the 3-letter company designator specified in FAA Order JO 7340.2, Contractions, followed by the trip or flight number. Use the operating air carrier's company name in identifying equipment interchange flights.
NOTE: The letter “L” is not to be used for air carrier/air taxi MEDEVAC aircraft.
Prefixes indicating branch of service and/or type of mission followed by the last 5 digits of the serial number (the last 4 digits for CFC and CTG). (See TBL 2-3-6 and TBL 2-3-7.)
Pronounceable words of 3, 4, 5, and 6 letters followed by a 4, 3, 2, or 1-digit number.
“SAMP Three One Six.”
Assigned double-letter 2-digit flight number.
Navy or Marine fleet and training command aircraft, one of the following:
(a) The service prefix and 2 letters (use phonetic alphabet equivalent) followed by 2 or 3 digits.
(b) The service prefix and a digit and a letter (use phonetic alphabet equivalent) followed by 2 or 3 digits.
Aircraft carrying the President, Vice President, and/or their family members will use the identifiers in the following tables. See TBL 2-3-8 and TBL 2-3-9.