1 Answers
28 day versus 56 day IFR chart cycles
Asked by: wems95@aol.com 4390 views Airspace, Commercial Pilot, FAA Regulations
I am confused by the FAA and GPS chart cycles. My paper copies of both enroute and terminal procedure charts are on a 56 day cycle, but my GPS is on a 28 day cycle.
I don't get it, if the paper charts are legal for 56 days, why do I have to update my GPS every 56 days? What extra information am I getting with the GPS for /G filing that I would not get in a NOTAM? If my GPS database expires but my paper charts are still current (in other words, one is within the cycle of the other) what would I expect to be different?
Thanks,
- Bill
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