AA.VI.B.K5
B
What does AA.VI.B.K5 mean?
Ground-based and satellite-based navigation (orientation, course determination, equipment, tests and regulations, interference, appropriate use of navigation data, signal integrity)..
- Area of Operation
- VI
- Task
- B
- Element type
- A Knowledge element — a fact, concept, or procedure the FAA expects you to know and that the knowledge (written) test draws questions from.
What you need to know
For instrument departures, know how obstacle clearance is built into departure design: an ODP (including VCOA, where you climb visually over the airport before proceeding, or a Diverse Vector Area, where ATC radar vectors provide the obstacle protection instead of a charted procedure) exists to keep you clear of terrain/obstacles, while a SID exists mainly for ATC traffic flow, though many SIDs also account for obstacles. You must understand that takeoff minimums and departure procedures may differ from published approach minimums and that operators/pilots are responsible for complying with any applicable departure procedure unless ATC specifically clears them otherwise. When using FMS/GPS to fly a DP, you need to verify the correct procedure is loaded, cross-check raw data against the depicted routing/altitudes, and understand system limitations like sensitivity, RAIM/integrity monitoring, and interference sources. Also be ready to explain communication and lost-comm procedures after departure (squawk codes, expected routing/altitude logic) and pilot/controller responsibilities for separation, clearance compliance, and available ATC services during the departure phase.
Why students miss this
Students often confuse who is responsible for obstacle clearance during a departure — assuming ATC radar vectors alone guarantee terrain separation, or missing that a charted ODP, SID, or VCOA each shift that responsibility differently between pilot and controller. Another common trap is treating GPS/FMS depiction of a departure procedure as automatically compliant with charted altitude and course restrictions, when the pilot must still verify the underlying navigation data and cross-check raw guidance.
Focus on: Study who owns obstacle clearance in each departure scenario (ODP, VCOA, SID, diverse vector area) and practice cross-checking FMS/GPS depictions against the charted procedure rather than trusting the automation alone.
🎯 Test yourself on this topic
Question 1 of 2For what purpose may flight deck voice recorders and flight data recorders NOT be used?
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Drill this area until it sticks
AA.VI.B.K5 came from a question you missed on the FAA Airline Transport Pilot Multiengine Airplane knowledge test. Take a free, ACS-aligned Equipment, Navigation, and Facilities quiz — instant scoring, explanations, and the cited FAA reference behind every answer.
Missing it isn't a verdict on you — it's a sign your prep skipped the why behind it. Memorizing answer letters is exactly what leaves gaps like this. Here, every answer explains the reasoning and cites the FAA source it comes from, so the concept holds on test day and at the checkride oral.
Study this concept
Plain-English explanations of the key ideas behind AA.VI.B.K5, grounded in the FAA handbooks.
Related ACS codes in B
Other elements the FAA tests under this same Task — review them together.
- AA.VI.B.K1Takeoff minimums; (Obstacle) Departure Procedure (ODP), including Visual Climb over the Airport…
- AA.VI.B.K2Use of a Flight Management System (FMS) or Global Positioning System (GPS) to follow a DP.
- AA.VI.B.K3Pilot/controller responsibilities, communication procedures, and ATC services available to pilo…
- AA.VI.B.K4Two-way radio communication failure procedures after takeoff.
Common question
Do I have to fly a charted ODP if ATC gives me a radar vector after takeoff instead?
If ATC assigns radar vectors, they assume responsibility for obstacle clearance within the diverse vector area, but you still need to understand the underlying ODP in case of a communication failure or if vectors are discontinued.
What is an FAA ACS code?
The FAA's Airman Certification Standards (ACS) break each certificate into Areas of Operation, Tasks, and specific Knowledge (K), Risk Management (R), and Skill (S) elements. Every knowledge-test question maps to one code like AA.VI.B.K5. When you miss a question, your Airman Knowledge Test Report lists its code so you know exactly what to review.
Have a whole list of codes from your report? Paste them all into our free ACS code lookup to see every weak area at once — or browse the aviation glossary for plain-English definitions.