Depending on your specific area of interest, here are the most relevant "helpful reviews" or breakdowns for these topics: Navy Rating Community and Career Field (NEC Codes)
The suffix is most commonly a video file format (Audio Video Interleave). If you are looking for a "helpful review" of a specific video file titled P 0983.avi , it may be a private file or a specific declassified military clip, such as the widely discussed 2024 "glowing orb" footage. P 0983 avi
In the context of the U.S. Navy, NEC codes like these are used to identify specific skills or knowledge requirements for billet assignments. Depending on your specific area of interest, here
: Essential for high-speed rotors.