SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/pilot-alcohol-8-hours

How long after drinking any alcoholic beverage must a pilot wait before acting as a crewmember?

8 hours, and even then not while under the influence.

  1. 4 hours
  2. 12 hours
  3. 8 hours ✔

Why: Rule 91.17 bars acting as a crewmember within 8 hours after drinking alcohol. The rule also bans flying while under the influence, whichever lasts longer.

Huh, didn't know that: The same rule also bans acting as a crewmember while using any drug that affects your faculties in a way contrary to safety.

The dad joke
Why did the root beer float? It finally took flying lessons.
Like this card?
Play the game

Sources

  1. 14 CFR 91.17 Alcohol or drugs (eCFR) https://www.ecfr.gov/current/title-14/chapter-I/subchapter-F/part-91/subpart-A/section-91.17

Test yourself in the game

Flying & DronesFlying VFR by day, how much fuel must remain after reaching your first planned landing?Flying & DronesFlying VFR at night, what minimum fuel reserve does an airplane need after the first planned landing?Flying & DronesWhen aircraft of different categories converge, which one has the right of way over all the others?

That's stuff everyone should know.