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What does the asterisk (*) mean in the Driftdown Summary section of a flight plan

Created Date:

Jul 2017

Article ID:

000002812

Version:

Environment:

N/A

Document Type(s):

Info

Related Products: JetPlan Engine, JetPlan.com, JetPlanner

Question:
What does the asterisk (*) symbol in front of the airport code in the Driftdown Summary portion of the flight plan mean?

Example:

DRIFTDOWN SUMMARY DATA
CRZ TO BURN FL MSA TO BURN FL MSA FOB LAT LON W
LRC EINN 008851 100 045 BIKF 008748 100 038 046107 N55228 W022546
*BIKF 012478 100 038 CYYR 012586 100 053 038648 N55552 W040342
CYYR 006703 100 053 CYYT 006532 100 024 034609 N53546 W050228
1LE EINN 006860 230 045 BIKF 006849 230 038 046252 N55204 W022360
*BIKF 009783 240 038 CYYR 009812 240 053 038749 N55570 W040198
CYYR 004824 250 053 CYYT 004738 250 024 034127 N53378 W051300

WARNING FLAGS: M-MSA, D-FUEL DUMP REQ., F-DIVERT FUEL REQ.,
S-SPIRAL DESCENT

Explanation:
The asterisk (*) in the TO column indicates the fuel critical diversion airport pair for each cruise mode. Sufficient fuel exists on board for the diversion calculation, but less pad exists between the fuel required and the fuel on board than for any of the other diversion airport pairs. If only one diversion airport pair exists for each cruise mode, the asterisk prints out next to it (page 610 in the user's guide).

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