Questions and Answers
What is the UHF frequency preferred for military pilots?
In the event of a two-way radio failure, pilots should adjust their transponder to reply on Mode 3/A, Code ___.
7600
What should pilots do if they can maintain flight in VMC during a two-way radio failure?
Continue flight under VFR and land as soon as practicable.
What does FEVR stand for in IMC procedures after a two-way radio failure?
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For IMC altitude, M stands for the Minimum altitude (converted) for ___ operations.
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What should the pilot do when leaving a clearance limit?
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When should lost communications procedures be initiated during radar approaches?
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What should be reported when vacating an assigned altitude?
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Pilots should report an approach has been ___ to ATC.
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Study Notes
Emergency Frequencies
- UHF 243.0 MHz is preferred for military communication.
- VHF 121.5 MHz serves as the international emergency frequency.
TWO-WAY RADIO FAILURE - FAA PROCEDURES
- Pilots should use sound judgment during communication failures.
- Adjust transponder to Mode 3/A, Code 7600 for squawking.
- ATC will attempt to contact using guard frequencies and available frequencies.
TWO-WAY RADIO FAILURE - VMC
- Maintain VMC and continue under VFR, landing as soon as practical.
- "As soon as practical" does not mean immediate landing; maintain pilot discretion.
- Priority is to avoid extended IFR operations under VMC.
TWO-WAY RADIO FAILURE - IMC Route FEVR
- Follow the route filed in the flight plan (F).
- Adhere to the route advised by ATC for expected clearance (E).
- If radar vectored, follow the direct route from the failure point to the specified fix (V).
- Proceed by the last assigned route (R).
TWO-WAY RADIO FAILURE - IMC Altitude MAX
- Minimum altitude for IFR operations is required (M).
- Follow the altitude or flight level assigned in the last ATC clearance (A).
- Stay at the altitude or flight level that ATC advised may be expected next (X).
LEAVE CLEARANCE LIMIT
- Begin descent as close to the expected clearance time as possible.
- If the clearance limit is not a starting fix for approach, leave upon reaching it.
- Proceed to the nearest fix for approach and initiate descent based on estimated time of arrival.
RADAR APPROACHES - Initiate Lost Communications Procedures
- Start lost communications protocols after no transmissions for specific timeframes:
- One minute while vectored to final.
- Fifteen seconds on ASR final approach.
- Five seconds on PAR final approach.
- Attempt to regain contact on secondary frequencies or guard frequencies.
- If unable to re-establish communication and VMC cannot be maintained, execute a published instrument approach.
- Maintain last assigned altitude or minimum safe altitude until established on the approach segment.
Additional Reports to ATC or FSS
- Report when vacating assigned altitudes for new levels.
- Inform when altitude change occurs on "VFR ON TOP" clearance.
- Notify when unable to maintain a climb/descend rate of at least 500 feet per minute.
- Report when a missed approach occurs, requesting clearance for alternate actions.
- Alert for changes in cruising altitude airspeed that vary by 5% or 10 knots from the filed plan.
- Provide time and altitude upon reaching a cleared holding fix.
- Report departure from any assigned holding fix or point.
- Notify any loss of navigation receiver capability.
- Communicate any safety-related information affecting flight.
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Description
Test your knowledge of essential flight terms with these flashcards from the Flight Information Handbook. Topics include emergency frequencies and FAA procedures for radio failure. Perfect for pilots and aviation enthusiasts looking to enhance their understanding of crucial safety protocols.
