Aero-Terms are designed to be a daily reminder of the terms,
names, acronyms and explanations of the unique language that
populates the aviation world. Aerospace, sport aviation, fixed
wing, helo, you name it... it's all fair game.
Aero-Terms should serve as a quick but intriguing reminder of
the terms you may use every day, or an introduction to an aspects
of the Aero-World you may not yet be familiar with. ANN also
encourages readers to go beyond the FMI link, and further research
any intriguing terms.
Concerning altitude/flight level, the term means to remain at
the altitude/flight level specified. The phrase "climb and" or
"descend and" normally precedes "maintain" and the altitude
assignment; e.g., "descend and maintain 5,000." For other ATC
instructions, the term is used in its literal sense; e.g., maintain