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What Are NOTAMs? Notices to Air Missions Explained

Pilot Institute

The start and end dates and times are coded in YYMMDDttt format (UTC time). B) 2106231700 is the start time and date in UTC. C) 2106232300 is the end time and date in UTC. Electronic Flight Bag (EFB) EFBs have made flight planning easier and more convenient than ever. Each subject has its own FAA keyword.

NOTAMs 52
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What Is a SPECI and When Is It Issued?

Pilot Institute

This allows you to make quick adjustments to your flight plan. 011955Z : The date and time of issuance (first day of the month at 19:55 UTC). OVC010CB : Overcast layer of cumulonimbus clouds at 1,000 feet AGL. In this example, you should watch out for an overcast layer (ceiling) of cumulonimbus clouds 1,000 ft AGL.