***Meaning*** :: <u>N</u>otams, <u>W</u>eather, <u>K</u>nown ATC delays, <u>R</u>unway lengths, <u>A</u>lternates, <u>F</u>uel requirements, and <u>T</u>akeoff and landing distances ***Significance:*** Required preflight actions under [[FAR 91.103 Preflight Action]] ***Source:*** [The Secret to Passing: Understand Why You Are Learning Each Concept](https://www.aopa.org/news-and-media/all-news/2022/july/flight-training-magazine/checkride-101-secret-to-passing) from [[AOPA]] ***Related To:*** #acronym