go-no-go decision

1800wxbrief aeronautical decision making AIRMET AIRMET Zulu area forecast discussion aviation weather cross-country flight cross-country flying FAR 91.155 flight planning flight safety flight service flight training general aviation safety get-there-itis go no-go decision PAVE checklist personal minimums preflight planning risk management student pilot TAF VFR into IMC VFR weather minimums weather briefing