FAA Flight Instructor Airplane (FIA)Regulations (14 CFR 61/91)Easy
According to 14 CFR 91.17, a pilot may not act as a crewmember of a civil aircraft within how many hours after consuming any alcoholic beverage?
- A8 hours
- B12 hours
- C24 hours
- D4 hours
Show answer & explanationAnswer & explanation
Correct answer: A. 8 hours
14 CFR 91.17(a)(1) prohibits acting as a crewmember within 8 hours after consuming any alcoholic beverage. Additional provisions also prohibit acting as a crewmember while under the influence, with any measurable blood alcohol concentration of 0.04 or greater, or while using a drug that affects safety.
Why the other options are wrong
- B. 12 hours exceeds the regulatory minimum but is sometimes used as a company policy, not the FAR minimum.
- C. 24 hours is not the FAR requirement, though some operators use longer voluntary policies.
- D. 4 hours is not the regulatory threshold.
Alcohol and Drugs (91.17)
14 CFR 91.17 prohibits crewmembers from operating an aircraft within 8 hours of consuming alcohol, while under the influence, or with a BAC of 0.04 or greater.
- 8-hour minimum after any alcohol consumption
- BAC limit: 0.04 or greater is prohibited
- Also prohibits use of any drug affecting safety of flight
Memory trick: '8 hours bottle to throttle.'