What happened in FAA v. Merrell?

• A. A pilot ignored a clearance intentionally.
• B. A pilot followed a clearance meant for another aircraft after his mistaken readback was blocked.
• C. ATC issued a clearance that was deleted.
• D. There was a miscommunication with the weather briefing.

Answer: (B)

The situation tests how a pilot must handle clearances when there is any doubt or breakdown in readback. In FAA v. Merrell, the pilot’s readback of a clearance was mistaken, and because that readback was blocked or not clearly heard by ATC, the controller issued or effectively conveyed a clearance to a different aircraft. The pilot then proceeded under that other clearance, thinking it applied to him. This highlights the risk of acting on an unclear or misdirected clearance and the importance of confirming the specific clearance intended for you before acting.

Key takeaway: always ensure you are acting on the clearance assigned to you, and if there is any ambiguity—especially when your readback isn’t audible or is blocked—pause and seek explicit confirmation from ATC to prevent following the wrong authority. This incident reinforces the practice of double-checking clearance integrity and not assuming a clearance without positive confirmation.

The other scenarios don’t fit the event: it isn’t about intentionally ignoring a clearance, a clearance being deleted by ATC, or miscommunication about weather briefing.