FAR 91.169 IFR flight plan: Information required. 計器飛行での飛行計画書について
§ 91.169 IFR flight plan: Information required.
(a) Information required. Unless otherwise authorized by ATC, each person filing an IFR flight plan must include in it the following information:
(1) Information required under §91.153 (a) of this part;
(2) Except as provided in paragraph (b) of this section, an alternate airport.
IFRのFlight Planを提出する際は、ATCが許可する場合を除いて、VFR Flight Plan (FAR 91.153)で必要とされている項目と、(b)で免除される場合を除き、代替空港を指定する必要があります。
Alternate Airportについて
(b) Paragraph (a)(2) of this section does not apply if : 代替空港の指定が必要で無い場合は、
(1) Part 97 of this chapter prescribes a standard instrument approach procedure to, or a special instrument approach procedure has been issued by the Administrator to the operator for, the first airport of intended landing; and （計器飛行進入が可能で）
(2) Appropriate weather reports or weather forecasts, or a combination of them, indicate the following:
(i) For aircraft other than helicopters. For at least 1 hour before and for 1 hour after the estimated time of arrival, the ceiling will be at least 2,000 feet above the airport elevation and the visibility will be at least 3 statute miles.
ヘリコプターの場合を除き、到着予想時間の前後1時間の予報が、Ceilingが地上から2000フィート以上でVisibilityが３マイル以上有る時は代替空港は免除されます。
(ii) For helicopters. At the estimated time of arrival and for 1 hour after the estimated time of arrival, the ceiling will be at least 1,000 feet above the airport elevation, or at least 400 feet above the lowest applicable approach minima, whichever is higher, and the visibility will be at least 2 statute miles.
ヘリの場合は、シーリング４００フィート、Visibilityは２マイル以上の場合に免除されます
(c) IFR alternate airport weather minima. Unless otherwise authorized by the Administrator, no person may include an alternate airport in an IFR flight plan unless appropriate weather reports or weather forecasts, or a combination of them, indicate that, at the estimated time of arrival at the alternate airport, the ceiling and visibility at that airport will be at or above the following weather minima: 代替空港として必要な気象条件は、
(1) If an instrument approach procedure has been published in part 97 of this chapter, or a special instrument approach procedure has been issued by the Administrator to the operator, for that airport, the following minima:
(i) For aircraft other than helicopters: The alternate airport minima specified in that procedure, or if none are specified the following standard approach minima: ヘリコプター以外の航空機では
(A) For a precision approach procedure. Ceiling 600 feet and visibility 2 statute miles.
精密進入が可能な場合は、シーリング600フィート以上でVVisibilityが２マイル必要。
(B) For a nonprecision approach procedure. Ceiling 800 feet and visibility 2 statute miles.
非精密進入の時は、
シーリング800フィート以上でVVisibilityが２マイル必要。
(ii) For helicopters: Ceiling 200 feet above the minimum for the approach to be flown, and visibility at least 1 statute mile but never less than the minimum visibility for the approach to be flown, and
ヘリコプターの場合は、シリングがMinimumよりも200フィート高い事と、1マイル以上か指定されたVisibility以上で有る事。
(2) If no instrument approach procedure has been published in part 97 of this chapter and no special instrument approach procedure has been issued by the Administrator to the operator, for the alternate airport, the ceiling and visibility minima are those allowing descent from the MEA, approach, and landing under basic VFR.
計器飛行進入が無い場合は、MEAから着陸までが、Basic VFRで安全に飛行が行える事
(d) Cancellation. When a flight plan has been activated, the pilot in command, upon canceling or completing the flight under the flight plan, shall notify an FAA Flight Service Station or ATC facility.
フライトプランがActiveな場合、キャンセルする時や着陸した時に、FSSかATCに知らせる事。（Closeする事）
