An air carrier flight is preparing to depart from a domestic airport which is not listed in the carrier's operation specifications. There are no takeoff minimums prescribed for the airport, and the weather is currently reporting a 900 foot overcast ceiling and 1 mile visibility in mist. The flight may
A
not depart until the weather improves.✓ Correct Answer
B
depart if an alternate departure airport is filed.
C
depart without an alternate departure airport.
Explanation
Under 14 CFR 121.637(b), when no takeoff minimums are prescribed for an airport not listed in the operations specifications, the takeoff minimums are 800-2, 900-1 1/2 or 1,000-1. A 900-foot ceiling with 1 mile visibility meets none of them, so the flight may not depart until the weather improves; a departure alternate does not replace takeoff minimums.
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