FAA Questions/Instrument Rating/Question #59
regulationsFAA-published sample question (IRH, Aug 2021)

For helicopters, what minimum weather conditions must be forecast for the ETA for that airport to be listed as an alternate on an IFR flight plan, if that airport has a published ILS approach?

A

600 foot ceiling and 2 SM visibility at your ETA.

B

200 foot ceiling above the airport elevation and 1 SM visibility from 1 hour before to 1 hour after your ETA.

C

200 foot ceiling above the approach minimums and 1 SM visibility, but not less than the visibility minimums for the approach, at your ETA.✓ Correct Answer

Explanation

For helicopters, 14 CFR 91.169(c)(2) requires, for an alternate with a precision approach, a forecast at the ETA of a ceiling 200 feet above the minimum for the approach to be flown and visibility of at least 1 statute mile, but never less than the minimum visibility for that approach. The 600-2 standard applies to airplanes, and the 1-hour-before/after window is the destination rule, not the alternate rule.

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