FAA Instrument Rating Written Practice Test 2025 - Free Instrument Rating Exam Practice Questions and Study Guide

When flying in Class D airspace, the regulations allow for continued flight even if your transponder is inoperative, as long as you are operating under visual flight rules (VFR). While it is always a good idea to notify air traffic control (ATC) of any equipment malfunctions, the actual legal requirement is not to have a functioning transponder to operate in Class D airspace under VFR conditions.

However, it is essential to remain vigilant about communication with ATC and be aware that some specific restrictions or procedures may apply if the airspace is under control or if there are additional local requirements. This context is important, as ATC may still be able to provide you with instructions and information regarding traffic while you are operating without that particular equipment.

It's important to keep in mind that while continued flight is permissible, the absence of a transponder will likely lead to increased scrutiny on your flight, but it doesn't inhibit your entry into Class D airspace as long as you follow proper procedures for communications and navigation.